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Merge Linux 2.6.23

Sfoglia il codice sorgente
This commit is contained in:
David Woodhouse
2007-10-13 14:43:54 +01:00
parent b37bde1478 bbf25010f1
commit b160292cc2
1054 ha cambiato i file con 60943 aggiunte e 21283 eliminazioni
Scarica il file Patch Scarica il file Diff Expand all files Collapse all files

17
fs/9p/fid.c
Vedi File

@@ -92,23 +92,6 @@ struct p9_fid *v9fs_fid_lookup(struct dentry *dentry)
return fid;
}
struct p9_fid *v9fs_fid_lookup_remove(struct dentry *dentry)
{
struct p9_fid *fid;
struct v9fs_dentry *dent;
dent = dentry->d_fsdata;
fid = v9fs_fid_lookup(dentry);
if (!IS_ERR(fid)) {
spin_lock(&dent->lock);
list_del(&fid->dlist);
spin_unlock(&dent->lock);
}
return fid;
}
/**
* v9fs_fid_clone - lookup the fid for a dentry, clone a private copy and
* release it

1
fs/9p/fid.h
Vedi File

@@ -28,6 +28,5 @@ struct v9fs_dentry {
};
struct p9_fid *v9fs_fid_lookup(struct dentry *dentry);
struct p9_fid *v9fs_fid_lookup_remove(struct dentry *dentry);
struct p9_fid *v9fs_fid_clone(struct dentry *dentry);
int v9fs_fid_add(struct dentry *dentry, struct p9_fid *fid);

3
fs/Kconfig
Vedi File

@@ -441,9 +441,6 @@ config OCFS2_FS
Note: Features which OCFS2 does not support yet:
- extended attributes
- shared writeable mmap
- loopback is supported, but data written will not
be cluster coherent.
- quotas
- cluster aware flock
- Directory change notification (F_NOTIFY)

2
fs/afs/mntpt.c
Vedi File

@@ -235,8 +235,8 @@ static void *afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd)
err = do_add_mount(newmnt, nd, MNT_SHRINKABLE, &afs_vfsmounts);
switch (err) {
case 0:
mntput(nd->mnt);
dput(nd->dentry);
mntput(nd->mnt);
nd->mnt = newmnt;
nd->dentry = dget(newmnt->mnt_root);
schedule_delayed_work(&afs_mntpt_expiry_timer,

2
fs/aio.c
Vedi File

@@ -1562,6 +1562,7 @@ int fastcall io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb,
fput(file);
return -EAGAIN;
}
req->ki_filp = file;
if (iocb->aio_flags & IOCB_FLAG_RESFD) {
/*
* If the IOCB_FLAG_RESFD flag of aio_flags is set, get an
@@ -1576,7 +1577,6 @@ int fastcall io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb,
}
}
req->ki_filp = file;
ret = put_user(req->ki_key, &user_iocb->aio_key);
if (unlikely(ret)) {
dprintk("EFAULT: aio_key\n");

6
fs/binfmt_flat.c
Vedi File

@@ -742,6 +742,7 @@ static int load_flat_file(struct linux_binprm * bprm,
* __start to address 4 so that is okay).
*/
if (rev > OLD_FLAT_VERSION) {
unsigned long persistent = 0;
for (i=0; i < relocs; i++) {
unsigned long addr, relval;
@@ -749,6 +750,8 @@ static int load_flat_file(struct linux_binprm * bprm,
relocated (of course, the address has to be
relocated first). */
relval = ntohl(reloc[i]);
if (flat_set_persistent (relval, &persistent))
continue;
addr = flat_get_relocate_addr(relval);
rp = (unsigned long *) calc_reloc(addr, libinfo, id, 1);
if (rp == (unsigned long *)RELOC_FAILED) {
@@ -757,7 +760,8 @@ static int load_flat_file(struct linux_binprm * bprm,
}
/* Get the pointer's value. */
addr = flat_get_addr_from_rp(rp, relval, flags);
addr = flat_get_addr_from_rp(rp, relval, flags,
&persistent);
if (addr != 0) {
/*
* Do the relocation. PIC relocs in the data section are

24
fs/compat_ioctl.c
Vedi File

@@ -2311,8 +2311,10 @@ static int do_wireless_ioctl(unsigned int fd, unsigned int cmd, unsigned long ar
struct iwreq __user *iwr_u;
struct iw_point __user *iwp;
struct compat_iw_point __user *iwp_u;
compat_caddr_t pointer;
compat_caddr_t pointer_u;
void __user *pointer;
__u16 length, flags;
int ret;
iwr_u = compat_ptr(arg);
iwp_u = (struct compat_iw_point __user *) &iwr_u->u.data;
@@ -2330,17 +2332,29 @@ static int do_wireless_ioctl(unsigned int fd, unsigned int cmd, unsigned long ar
sizeof(iwr->ifr_ifrn.ifrn_name)))
return -EFAULT;
if (__get_user(pointer, &iwp_u->pointer) ||
if (__get_user(pointer_u, &iwp_u->pointer) ||
__get_user(length, &iwp_u->length) ||
__get_user(flags, &iwp_u->flags))
return -EFAULT;
if (__put_user(compat_ptr(pointer), &iwp->pointer) ||
if (__put_user(compat_ptr(pointer_u), &iwp->pointer) ||
__put_user(length, &iwp->length) ||
__put_user(flags, &iwp->flags))
return -EFAULT;
return sys_ioctl(fd, cmd, (unsigned long) iwr);
ret = sys_ioctl(fd, cmd, (unsigned long) iwr);
if (__get_user(pointer, &iwp->pointer) ||
__get_user(length, &iwp->length) ||
__get_user(flags, &iwp->flags))
return -EFAULT;
if (__put_user(ptr_to_compat(pointer), &iwp_u->pointer) ||
__put_user(length, &iwp_u->length) ||
__put_user(flags, &iwp_u->flags))
return -EFAULT;
return ret;
}
/* Since old style bridge ioctl's endup using SIOCDEVPRIVATE
@@ -3176,6 +3190,8 @@ COMPATIBLE_IOCTL(SIOCSIWRETRY)
COMPATIBLE_IOCTL(SIOCGIWRETRY)
COMPATIBLE_IOCTL(SIOCSIWPOWER)
COMPATIBLE_IOCTL(SIOCGIWPOWER)
COMPATIBLE_IOCTL(SIOCSIWAUTH)
COMPATIBLE_IOCTL(SIOCGIWAUTH)
/* hiddev */
COMPATIBLE_IOCTL(HIDIOCGVERSION)
COMPATIBLE_IOCTL(HIDIOCAPPLICATION)

4
fs/ecryptfs/inode.c
Vedi File

@@ -357,10 +357,6 @@ static struct dentry *ecryptfs_lookup(struct inode *dir, struct dentry *dentry,
ecryptfs_printk(KERN_DEBUG, "Is a special file; returning\n");
goto out;
}
if (special_file(lower_inode->i_mode)) {
ecryptfs_printk(KERN_DEBUG, "Is a special file; returning\n");
goto out;
}
if (!nd) {
ecryptfs_printk(KERN_DEBUG, "We have a NULL nd, just leave"
"as we *think* we are about to unlink\n");

3
fs/ecryptfs/mmap.c
Vedi File

@@ -834,7 +834,8 @@ static void ecryptfs_sync_page(struct page *page)
ecryptfs_printk(KERN_DEBUG, "find_lock_page failed\n");
return;
}
lower_page->mapping->a_ops->sync_page(lower_page);
if (lower_page->mapping->a_ops->sync_page)
lower_page->mapping->a_ops->sync_page(lower_page);
ecryptfs_printk(KERN_DEBUG, "Unlocking page with index = [0x%.16x]\n",
lower_page->index);
unlock_page(lower_page);

3
fs/exec.c
Vedi File

@@ -50,7 +50,6 @@
#include <linux/tsacct_kern.h>
#include <linux/cn_proc.h>
#include <linux/audit.h>
#include <linux/signalfd.h>
#include <asm/uaccess.h>
#include <asm/mmu_context.h>
@@ -784,7 +783,6 @@ static int de_thread(struct task_struct *tsk)
* and we can just re-use it all.
*/
if (atomic_read(&oldsighand->count) <= 1) {
signalfd_detach(tsk);
exit_itimers(sig);
return 0;
}
@@ -923,7 +921,6 @@ static int de_thread(struct task_struct *tsk)
sig->flags = 0;
no_thread_group:
signalfd_detach(tsk);
exit_itimers(sig);
if (leader)
release_task(leader);

73
fs/ext3/namei.c
Vedi File

@@ -140,7 +140,8 @@ struct dx_frame
struct dx_map_entry
{
u32 hash;
u32 offs;
u16 offs;
u16 size;
};
#ifdef CONFIG_EXT3_INDEX
@@ -379,13 +380,28 @@ dx_probe(struct dentry *dentry, struct inode *dir,
entries = (struct dx_entry *) (((char *)&root->info) +
root->info.info_length);
assert(dx_get_limit(entries) == dx_root_limit(dir,
root->info.info_length));
if (dx_get_limit(entries) != dx_root_limit(dir,
root->info.info_length)) {
ext3_warning(dir->i_sb, __FUNCTION__,
"dx entry: limit != root limit");
brelse(bh);
*err = ERR_BAD_DX_DIR;
goto fail;
}
dxtrace (printk("Look up %x", hash));
while (1)
{
count = dx_get_count(entries);
assert (count && count <= dx_get_limit(entries));
if (!count || count > dx_get_limit(entries)) {
ext3_warning(dir->i_sb, __FUNCTION__,
"dx entry: no count or count > limit");
brelse(bh);
*err = ERR_BAD_DX_DIR;
goto fail2;
}
p = entries + 1;
q = entries + count - 1;
while (p <= q)
@@ -423,8 +439,15 @@ dx_probe(struct dentry *dentry, struct inode *dir,
if (!(bh = ext3_bread (NULL,dir, dx_get_block(at), 0, err)))
goto fail2;
at = entries = ((struct dx_node *) bh->b_data)->entries;
assert (dx_get_limit(entries) == dx_node_limit (dir));
if (dx_get_limit(entries) != dx_node_limit (dir)) {
ext3_warning(dir->i_sb, __FUNCTION__,
"dx entry: limit != node limit");
brelse(bh);
*err = ERR_BAD_DX_DIR;
goto fail2;
}
frame++;
frame->bh = NULL;
}
fail2:
while (frame >= frame_in) {
@@ -432,6 +455,10 @@ fail2:
frame--;
}
fail:
if (*err == ERR_BAD_DX_DIR)
ext3_warning(dir->i_sb, __FUNCTION__,
"Corrupt dir inode %ld, running e2fsck is "
"recommended.", dir->i_ino);
return NULL;
}
@@ -671,6 +698,10 @@ errout:
* Directory block splitting, compacting
*/
/*
* Create map of hash values, offsets, and sizes, stored at end of block.
* Returns number of entries mapped.
*/
static int dx_make_map (struct ext3_dir_entry_2 *de, int size,
struct dx_hash_info *hinfo, struct dx_map_entry *map_tail)
{
@@ -684,7 +715,8 @@ static int dx_make_map (struct ext3_dir_entry_2 *de, int size,
ext3fs_dirhash(de->name, de->name_len, &h);
map_tail--;
map_tail->hash = h.hash;
map_tail->offs = (u32) ((char *) de - base);
map_tail->offs = (u16) ((char *) de - base);
map_tail->size = le16_to_cpu(de->rec_len);
count++;
cond_resched();
}
@@ -694,6 +726,7 @@ static int dx_make_map (struct ext3_dir_entry_2 *de, int size,
return count;
}
/* Sort map by hash value */
static void dx_sort_map (struct dx_map_entry *map, unsigned count)
{
struct dx_map_entry *p, *q, *top = map + count - 1;
@@ -1091,6 +1124,10 @@ static inline void ext3_set_de_type(struct super_block *sb,
}
#ifdef CONFIG_EXT3_INDEX
/*
* Move count entries from end of map between two memory locations.
* Returns pointer to last entry moved.
*/
static struct ext3_dir_entry_2 *
dx_move_dirents(char *from, char *to, struct dx_map_entry *map, int count)
{
@@ -1109,6 +1146,10 @@ dx_move_dirents(char *from, char *to, struct dx_map_entry *map, int count)
return (struct ext3_dir_entry_2 *) (to - rec_len);
}
/*
* Compact each dir entry in the range to the minimal rec_len.
* Returns pointer to last entry in range.
*/
static struct ext3_dir_entry_2* dx_pack_dirents(char *base, int size)
{
struct ext3_dir_entry_2 *next, *to, *prev, *de = (struct ext3_dir_entry_2 *) base;
@@ -1131,6 +1172,11 @@ static struct ext3_dir_entry_2* dx_pack_dirents(char *base, int size)
return prev;
}
/*
* Split a full leaf block to make room for a new dir entry.
* Allocate a new block, and move entries so that they are approx. equally full.
* Returns pointer to de in block into which the new entry will be inserted.
*/
static struct ext3_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
struct buffer_head **bh,struct dx_frame *frame,
struct dx_hash_info *hinfo, int *error)
@@ -1142,7 +1188,7 @@ static struct ext3_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
u32 hash2;
struct dx_map_entry *map;
char *data1 = (*bh)->b_data, *data2;
unsigned split;
unsigned split, move, size, i;
struct ext3_dir_entry_2 *de = NULL, *de2;
int err = 0;
@@ -1170,8 +1216,19 @@ static struct ext3_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
count = dx_make_map ((struct ext3_dir_entry_2 *) data1,
blocksize, hinfo, map);
map -= count;
split = count/2; // need to adjust to actual middle
dx_sort_map (map, count);
/* Split the existing block in the middle, size-wise */
size = 0;
move = 0;
for (i = count-1; i >= 0; i--) {
/* is more than half of this entry in 2nd half of the block? */
if (size + map[i].size/2 > blocksize/2)
break;
size += map[i].size;
move++;
}
/* map index at which we will split */
split = count - move;
hash2 = map[split].hash;
continued = hash2 == map[split - 1].hash;
dxtrace(printk("Split block %i at %x, %i/%i\n",

11
fs/ext3/super.c
Vedi File

@@ -2578,8 +2578,11 @@ static int ext3_release_dquot(struct dquot *dquot)
handle = ext3_journal_start(dquot_to_inode(dquot),
EXT3_QUOTA_DEL_BLOCKS(dquot->dq_sb));
if (IS_ERR(handle))
if (IS_ERR(handle)) {
/* Release dquot anyway to avoid endless cycle in dqput() */
dquot_release(dquot);
return PTR_ERR(handle);
}
ret = dquot_release(dquot);
err = ext3_journal_stop(handle);
if (!ret)
@@ -2712,6 +2715,12 @@ static ssize_t ext3_quota_write(struct super_block *sb, int type,
struct buffer_head *bh;
handle_t *handle = journal_current_handle();
if (!handle) {
printk(KERN_WARNING "EXT3-fs: Quota write (off=%Lu, len=%Lu)"
" cancelled because transaction is not started.\n",
(unsigned long long)off, (unsigned long long)len);
return -EIO;
}
mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA);
while (towrite > 0) {
tocopy = sb->s_blocksize - offset < towrite ?

73
fs/ext4/namei.c
Vedi File

@@ -140,7 +140,8 @@ struct dx_frame
struct dx_map_entry
{
u32 hash;
u32 offs;
u16 offs;
u16 size;
};
#ifdef CONFIG_EXT4_INDEX
@@ -379,13 +380,28 @@ dx_probe(struct dentry *dentry, struct inode *dir,
entries = (struct dx_entry *) (((char *)&root->info) +
root->info.info_length);
assert(dx_get_limit(entries) == dx_root_limit(dir,
root->info.info_length));
if (dx_get_limit(entries) != dx_root_limit(dir,
root->info.info_length)) {
ext4_warning(dir->i_sb, __FUNCTION__,
"dx entry: limit != root limit");
brelse(bh);
*err = ERR_BAD_DX_DIR;
goto fail;
}
dxtrace (printk("Look up %x", hash));
while (1)
{
count = dx_get_count(entries);
assert (count && count <= dx_get_limit(entries));
if (!count || count > dx_get_limit(entries)) {
ext4_warning(dir->i_sb, __FUNCTION__,
"dx entry: no count or count > limit");
brelse(bh);
*err = ERR_BAD_DX_DIR;
goto fail2;
}
p = entries + 1;
q = entries + count - 1;
while (p <= q)
@@ -423,8 +439,15 @@ dx_probe(struct dentry *dentry, struct inode *dir,
if (!(bh = ext4_bread (NULL,dir, dx_get_block(at), 0, err)))
goto fail2;
at = entries = ((struct dx_node *) bh->b_data)->entries;
assert (dx_get_limit(entries) == dx_node_limit (dir));
if (dx_get_limit(entries) != dx_node_limit (dir)) {
ext4_warning(dir->i_sb, __FUNCTION__,
"dx entry: limit != node limit");
brelse(bh);
*err = ERR_BAD_DX_DIR;
goto fail2;
}
frame++;
frame->bh = NULL;
}
fail2:
while (frame >= frame_in) {
@@ -432,6 +455,10 @@ fail2:
frame--;
}
fail:
if (*err == ERR_BAD_DX_DIR)
ext4_warning(dir->i_sb, __FUNCTION__,
"Corrupt dir inode %ld, running e2fsck is "
"recommended.", dir->i_ino);
return NULL;
}
@@ -671,6 +698,10 @@ errout:
* Directory block splitting, compacting
*/
/*
* Create map of hash values, offsets, and sizes, stored at end of block.
* Returns number of entries mapped.
*/
static int dx_make_map (struct ext4_dir_entry_2 *de, int size,
struct dx_hash_info *hinfo, struct dx_map_entry *map_tail)
{
@@ -684,7 +715,8 @@ static int dx_make_map (struct ext4_dir_entry_2 *de, int size,
ext4fs_dirhash(de->name, de->name_len, &h);
map_tail--;
map_tail->hash = h.hash;
map_tail->offs = (u32) ((char *) de - base);
map_tail->offs = (u16) ((char *) de - base);
map_tail->size = le16_to_cpu(de->rec_len);
count++;
cond_resched();
}
@@ -694,6 +726,7 @@ static int dx_make_map (struct ext4_dir_entry_2 *de, int size,
return count;
}
/* Sort map by hash value */
static void dx_sort_map (struct dx_map_entry *map, unsigned count)
{
struct dx_map_entry *p, *q, *top = map + count - 1;
@@ -1089,6 +1122,10 @@ static inline void ext4_set_de_type(struct super_block *sb,
}
#ifdef CONFIG_EXT4_INDEX
/*
* Move count entries from end of map between two memory locations.
* Returns pointer to last entry moved.
*/
static struct ext4_dir_entry_2 *
dx_move_dirents(char *from, char *to, struct dx_map_entry *map, int count)
{
@@ -1107,6 +1144,10 @@ dx_move_dirents(char *from, char *to, struct dx_map_entry *map, int count)
return (struct ext4_dir_entry_2 *) (to - rec_len);
}
/*
* Compact each dir entry in the range to the minimal rec_len.
* Returns pointer to last entry in range.
*/
static struct ext4_dir_entry_2* dx_pack_dirents(char *base, int size)
{
struct ext4_dir_entry_2 *next, *to, *prev, *de = (struct ext4_dir_entry_2 *) base;
@@ -1129,6 +1170,11 @@ static struct ext4_dir_entry_2* dx_pack_dirents(char *base, int size)
return prev;
}
/*
* Split a full leaf block to make room for a new dir entry.
* Allocate a new block, and move entries so that they are approx. equally full.
* Returns pointer to de in block into which the new entry will be inserted.
*/
static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
struct buffer_head **bh,struct dx_frame *frame,
struct dx_hash_info *hinfo, int *error)
@@ -1140,7 +1186,7 @@ static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
u32 hash2;
struct dx_map_entry *map;
char *data1 = (*bh)->b_data, *data2;
unsigned split;
unsigned split, move, size, i;
struct ext4_dir_entry_2 *de = NULL, *de2;
int err = 0;
@@ -1168,8 +1214,19 @@ static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
count = dx_make_map ((struct ext4_dir_entry_2 *) data1,
blocksize, hinfo, map);
map -= count;
split = count/2; // need to adjust to actual middle
dx_sort_map (map, count);
/* Split the existing block in the middle, size-wise */
size = 0;
move = 0;
for (i = count-1; i >= 0; i--) {
/* is more than half of this entry in 2nd half of the block? */
if (size + map[i].size/2 > blocksize/2)
break;
size += map[i].size;
move++;
}
/* map index at which we will split */
split = count - move;
hash2 = map[split].hash;
continued = hash2 == map[split - 1].hash;
dxtrace(printk("Split block %i at %x, %i/%i\n",

11
fs/ext4/super.c
Vedi File

@@ -2698,8 +2698,11 @@ static int ext4_release_dquot(struct dquot *dquot)
handle = ext4_journal_start(dquot_to_inode(dquot),
EXT4_QUOTA_DEL_BLOCKS(dquot->dq_sb));
if (IS_ERR(handle))
if (IS_ERR(handle)) {
/* Release dquot anyway to avoid endless cycle in dqput() */
dquot_release(dquot);
return PTR_ERR(handle);
}
ret = dquot_release(dquot);
err = ext4_journal_stop(handle);
if (!ret)
@@ -2832,6 +2835,12 @@ static ssize_t ext4_quota_write(struct super_block *sb, int type,
struct buffer_head *bh;
handle_t *handle = journal_current_handle();
if (!handle) {
printk(KERN_WARNING "EXT4-fs: Quota write (off=%Lu, len=%Lu)"
" cancelled because transaction is not started.\n",
(unsigned long long)off, (unsigned long long)len);
return -EIO;
}
mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA);
while (towrite > 0) {
tocopy = sb->s_blocksize - offset < towrite ?

15
fs/hugetlbfs/inode.c
Vedi File

@@ -82,14 +82,19 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
int ret;
/*
* vma alignment has already been checked by prepare_hugepage_range.
* If you add any error returns here, do so after setting VM_HUGETLB,
* so is_vm_hugetlb_page tests below unmap_region go the right way
* when do_mmap_pgoff unwinds (may be important on powerpc and ia64).
* vma address alignment (but not the pgoff alignment) has
* already been checked by prepare_hugepage_range. If you add
* any error returns here, do so after setting VM_HUGETLB, so
* is_vm_hugetlb_page tests below unmap_region go the right
* way when do_mmap_pgoff unwinds (may be important on powerpc
* and ia64).
*/
vma->vm_flags |= VM_HUGETLB | VM_RESERVED;
vma->vm_ops = &hugetlb_vm_ops;
if (vma->vm_pgoff & ~(HPAGE_MASK >> PAGE_SHIFT))
return -EINVAL;
vma_len = (loff_t)(vma->vm_end - vma->vm_start);
mutex_lock(&inode->i_mutex);
@@ -132,7 +137,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
return -ENOMEM;
if (flags & MAP_FIXED) {
if (prepare_hugepage_range(addr, len, pgoff))
if (prepare_hugepage_range(addr, len))
return -EINVAL;
return addr;
}

2
fs/jffs2/fs.c
Vedi File

@@ -647,7 +647,7 @@ unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c,
struct inode *inode = OFNI_EDONI_2SFFJ(f);
struct page *pg;
pg = read_cache_page(inode->i_mapping, offset >> PAGE_CACHE_SHIFT,
pg = read_cache_page_async(inode->i_mapping, offset >> PAGE_CACHE_SHIFT,
(void *)jffs2_do_readpage_unlock, inode);
if (IS_ERR(pg))
return (void *)pg;

31
fs/lockd/svclock.c
Vedi File

@@ -171,19 +171,14 @@ found:
* GRANTED_RES message by cookie, without having to rely on the client's IP
* address. --okir
*/
static inline struct nlm_block *
nlmsvc_create_block(struct svc_rqst *rqstp, struct nlm_file *file,
struct nlm_lock *lock, struct nlm_cookie *cookie)
static struct nlm_block *
nlmsvc_create_block(struct svc_rqst *rqstp, struct nlm_host *host,
struct nlm_file *file, struct nlm_lock *lock,
struct nlm_cookie *cookie)
{
struct nlm_block *block;
struct nlm_host *host;
struct nlm_rqst *call = NULL;
/* Create host handle for callback */
host = nlmsvc_lookup_host(rqstp, lock->caller, lock->len);
if (host == NULL)
return NULL;
call = nlm_alloc_call(host);
if (call == NULL)
return NULL;
@@ -366,6 +361,7 @@ nlmsvc_lock(struct svc_rqst *rqstp, struct nlm_file *file,
struct nlm_lock *lock, int wait, struct nlm_cookie *cookie)
{
struct nlm_block *block = NULL;
struct nlm_host *host;
int error;
__be32 ret;
@@ -377,6 +373,10 @@ nlmsvc_lock(struct svc_rqst *rqstp, struct nlm_file *file,
(long long)lock->fl.fl_end,
wait);
/* Create host handle for callback */
host = nlmsvc_lookup_host(rqstp, lock->caller, lock->len);
if (host == NULL)
return nlm_lck_denied_nolocks;
/* Lock file against concurrent access */
mutex_lock(&file->f_mutex);
@@ -385,7 +385,8 @@ nlmsvc_lock(struct svc_rqst *rqstp, struct nlm_file *file,
*/
block = nlmsvc_lookup_block(file, lock);
if (block == NULL) {
block = nlmsvc_create_block(rqstp, file, lock, cookie);
block = nlmsvc_create_block(rqstp, nlm_get_host(host), file,
lock, cookie);
ret = nlm_lck_denied_nolocks;
if (block == NULL)
goto out;
@@ -449,6 +450,7 @@ nlmsvc_lock(struct svc_rqst *rqstp, struct nlm_file *file,
out:
mutex_unlock(&file->f_mutex);
nlmsvc_release_block(block);
nlm_release_host(host);
dprintk("lockd: nlmsvc_lock returned %u\n", ret);
return ret;
}
@@ -477,10 +479,17 @@ nlmsvc_testlock(struct svc_rqst *rqstp, struct nlm_file *file,
if (block == NULL) {
struct file_lock *conf = kzalloc(sizeof(*conf), GFP_KERNEL);
struct nlm_host *host;
if (conf == NULL)
return nlm_granted;
block = nlmsvc_create_block(rqstp, file, lock, cookie);
/* Create host handle for callback */
host = nlmsvc_lookup_host(rqstp, lock->caller, lock->len);
if (host == NULL) {
kfree(conf);
return nlm_lck_denied_nolocks;
}
block = nlmsvc_create_block(rqstp, host, file, lock, cookie);
if (block == NULL) {
kfree(conf);
return nlm_granted;

2
fs/locks.c
Vedi File

@@ -782,7 +782,7 @@ find_conflict:
if (request->fl_flags & FL_ACCESS)
goto out;
locks_copy_lock(new_fl, request);
locks_insert_lock(&inode->i_flock, new_fl);
locks_insert_lock(before, new_fl);
new_fl = NULL;
error = 0;

29
fs/nfs/client.c
Vedi File

@@ -588,16 +588,6 @@ static int nfs_init_server(struct nfs_server *server, const struct nfs_mount_dat
server->namelen = data->namlen;
/* Create a client RPC handle for the NFSv3 ACL management interface */
nfs_init_server_aclclient(server);
if (clp->cl_nfsversion == 3) {
if (server->namelen == 0 || server->namelen > NFS3_MAXNAMLEN)
server->namelen = NFS3_MAXNAMLEN;
if (!(data->flags & NFS_MOUNT_NORDIRPLUS))
server->caps |= NFS_CAP_READDIRPLUS;
} else {
if (server->namelen == 0 || server->namelen > NFS2_MAXNAMLEN)
server->namelen = NFS2_MAXNAMLEN;
}
dprintk("<-- nfs_init_server() = 0 [new %p]\n", clp);
return 0;
@@ -794,6 +784,16 @@ struct nfs_server *nfs_create_server(const struct nfs_mount_data *data,
error = nfs_probe_fsinfo(server, mntfh, &fattr);
if (error < 0)
goto error;
if (server->nfs_client->rpc_ops->version == 3) {
if (server->namelen == 0 || server->namelen > NFS3_MAXNAMLEN)
server->namelen = NFS3_MAXNAMLEN;
if (!(data->flags & NFS_MOUNT_NORDIRPLUS))
server->caps |= NFS_CAP_READDIRPLUS;
} else {
if (server->namelen == 0 || server->namelen > NFS2_MAXNAMLEN)
server->namelen = NFS2_MAXNAMLEN;
}
if (!(fattr.valid & NFS_ATTR_FATTR)) {
error = server->nfs_client->rpc_ops->getattr(server, mntfh, &fattr);
if (error < 0) {
@@ -984,6 +984,9 @@ struct nfs_server *nfs4_create_server(const struct nfs4_mount_data *data,
if (error < 0)
goto error;
if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
server->namelen = NFS4_MAXNAMLEN;
BUG_ON(!server->nfs_client);
BUG_ON(!server->nfs_client->rpc_ops);
BUG_ON(!server->nfs_client->rpc_ops->file_inode_ops);
@@ -1056,6 +1059,9 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
if (error < 0)
goto error;
if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
server->namelen = NFS4_MAXNAMLEN;
dprintk("Referral FSID: %llx:%llx\n",
(unsigned long long) server->fsid.major,
(unsigned long long) server->fsid.minor);
@@ -1115,6 +1121,9 @@ struct nfs_server *nfs_clone_server(struct nfs_server *source,
if (error < 0)
goto out_free_server;
if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
server->namelen = NFS4_MAXNAMLEN;
dprintk("Cloned FSID: %llx:%llx\n",
(unsigned long long) server->fsid.major,
(unsigned long long) server->fsid.minor);

2
fs/nfs/dir.c
Vedi File

@@ -1162,6 +1162,8 @@ static struct dentry *nfs_readdir_lookup(nfs_readdir_descriptor_t *desc)
}
if (!desc->plus || !(entry->fattr->valid & NFS_ATTR_FATTR))
return NULL;
if (name.len > NFS_SERVER(dir)->namelen)
return NULL;
/* Note: caller is already holding the dir->i_mutex! */
dentry = d_alloc(parent, &name);
if (dentry == NULL)

2
fs/nfs/file.c
Vedi File

@@ -316,7 +316,7 @@ static void nfs_invalidate_page(struct page *page, unsigned long offset)
if (offset != 0)
return;
/* Cancel any unstarted writes on this page */
nfs_wb_page_priority(page->mapping->host, page, FLUSH_INVALIDATE);
nfs_wb_page_cancel(page->mapping->host, page);
}
static int nfs_release_page(struct page *page, gfp_t gfp)

3
fs/nfs/getroot.c
Vedi File

@@ -175,6 +175,9 @@ next_component:
path++;
name.len = path - (const char *) name.name;
if (name.len > NFS4_MAXNAMLEN)
return -ENAMETOOLONG;
eat_dot_dir:
while (*path == '/')
path++;

2
fs/nfs/namespace.c
Vedi File

@@ -176,7 +176,7 @@ static void nfs_expire_automounts(struct work_struct *work)
void nfs_release_automount_timer(void)
{
if (list_empty(&nfs_automount_list))
cancel_delayed_work_sync(&nfs_automount_task);
cancel_delayed_work(&nfs_automount_task);
}
/*

4
fs/nfs/nfs4proc.c
Vedi File

@@ -646,7 +646,7 @@ static int _nfs4_do_open_reclaim(struct nfs_open_context *ctx, struct nfs4_state
rcu_read_lock();
delegation = rcu_dereference(NFS_I(state->inode)->delegation);
if (delegation != NULL && (delegation->flags & NFS_DELEGATION_NEED_RECLAIM) != 0)
delegation_type = delegation->flags;
delegation_type = delegation->type;
rcu_read_unlock();
opendata->o_arg.u.delegation_type = delegation_type;
status = nfs4_open_recover(opendata, state);
@@ -1434,7 +1434,7 @@ nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
}
res = d_add_unique(dentry, igrab(state->inode));
if (res != NULL)
dentry = res;
path.dentry = res;
nfs4_intent_set_file(nd, &path, state);
return res;
}

132
fs/nfs/super.c
Vedi File

@@ -345,8 +345,8 @@ void __exit unregister_nfs_fs(void)
unregister_shrinker(&acl_shrinker);
#ifdef CONFIG_NFS_V4
unregister_filesystem(&nfs4_fs_type);
nfs_unregister_sysctl();
#endif
nfs_unregister_sysctl();
unregister_filesystem(&nfs_fs_type);
}
@@ -911,13 +911,13 @@ static int nfs_parse_mount_options(char *raw,
kfree(string);
switch (token) {
case Opt_udp:
case Opt_xprt_udp:
mnt->flags &= ~NFS_MOUNT_TCP;
mnt->nfs_server.protocol = IPPROTO_UDP;
mnt->timeo = 7;
mnt->retrans = 5;
break;
case Opt_tcp:
case Opt_xprt_tcp:
mnt->flags |= NFS_MOUNT_TCP;
mnt->nfs_server.protocol = IPPROTO_TCP;
mnt->timeo = 600;
@@ -936,10 +936,10 @@ static int nfs_parse_mount_options(char *raw,
kfree(string);
switch (token) {
case Opt_udp:
case Opt_xprt_udp:
mnt->mount_server.protocol = IPPROTO_UDP;
break;
case Opt_tcp:
case Opt_xprt_tcp:
mnt->mount_server.protocol = IPPROTO_TCP;
break;
default:
@@ -1153,20 +1153,20 @@ static int nfs_validate_mount_data(struct nfs_mount_data **options,
c = strchr(dev_name, ':');
if (c == NULL)
return -EINVAL;
len = c - dev_name - 1;
len = c - dev_name;
if (len > sizeof(data->hostname))
return -EINVAL;
return -ENAMETOOLONG;
strncpy(data->hostname, dev_name, len);
args.nfs_server.hostname = data->hostname;
c++;
if (strlen(c) > NFS_MAXPATHLEN)
return -EINVAL;
return -ENAMETOOLONG;
args.nfs_server.export_path = c;
status = nfs_try_mount(&args, mntfh);
if (status)
return -EINVAL;
return status;
/*
* Translate to nfs_mount_data, which nfs_fill_super
@@ -1303,34 +1303,6 @@ static void nfs_clone_super(struct super_block *sb,
nfs_initialise_sb(sb);
}
static int nfs_set_super(struct super_block *s, void *_server)
{
struct nfs_server *server = _server;
int ret;
s->s_fs_info = server;
ret = set_anon_super(s, server);
if (ret == 0)
server->s_dev = s->s_dev;
return ret;
}
static int nfs_compare_super(struct super_block *sb, void *data)
{
struct nfs_server *server = data, *old = NFS_SB(sb);
if (memcmp(&old->nfs_client->cl_addr,
&server->nfs_client->cl_addr,
sizeof(old->nfs_client->cl_addr)) != 0)
return 0;
/* Note: NFS_MOUNT_UNSHARED == NFS4_MOUNT_UNSHARED */
if (old->flags & NFS_MOUNT_UNSHARED)
return 0;
if (memcmp(&old->fsid, &server->fsid, sizeof(old->fsid)) != 0)
return 0;
return 1;
}
#define NFS_MS_MASK (MS_RDONLY|MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS)
static int nfs_compare_mount_options(const struct super_block *s, const struct nfs_server *b, int flags)
@@ -1359,9 +1331,46 @@ static int nfs_compare_mount_options(const struct super_block *s, const struct n
goto Ebusy;
if (clnt_a->cl_auth->au_flavor != clnt_b->cl_auth->au_flavor)
goto Ebusy;
return 0;
return 1;
Ebusy:
return -EBUSY;
return 0;
}
struct nfs_sb_mountdata {
struct nfs_server *server;
int mntflags;
};
static int nfs_set_super(struct super_block *s, void *data)
{
struct nfs_sb_mountdata *sb_mntdata = data;
struct nfs_server *server = sb_mntdata->server;
int ret;
s->s_flags = sb_mntdata->mntflags;
s->s_fs_info = server;
ret = set_anon_super(s, server);
if (ret == 0)
server->s_dev = s->s_dev;
return ret;
}
static int nfs_compare_super(struct super_block *sb, void *data)
{
struct nfs_sb_mountdata *sb_mntdata = data;
struct nfs_server *server = sb_mntdata->server, *old = NFS_SB(sb);
int mntflags = sb_mntdata->mntflags;
if (memcmp(&old->nfs_client->cl_addr,
&server->nfs_client->cl_addr,
sizeof(old->nfs_client->cl_addr)) != 0)
return 0;
/* Note: NFS_MOUNT_UNSHARED == NFS4_MOUNT_UNSHARED */
if (old->flags & NFS_MOUNT_UNSHARED)
return 0;
if (memcmp(&old->fsid, &server->fsid, sizeof(old->fsid)) != 0)
return 0;
return nfs_compare_mount_options(sb, server, mntflags);
}
static int nfs_get_sb(struct file_system_type *fs_type,
@@ -1373,6 +1382,9 @@ static int nfs_get_sb(struct file_system_type *fs_type,
struct nfs_mount_data *data = raw_data;
struct dentry *mntroot;
int (*compare_super)(struct super_block *, void *) = nfs_compare_super;
struct nfs_sb_mountdata sb_mntdata = {
.mntflags = flags,
};
int error;
/* Validate the mount data */
@@ -1386,28 +1398,25 @@ static int nfs_get_sb(struct file_system_type *fs_type,
error = PTR_ERR(server);
goto out;
}
sb_mntdata.server = server;
if (server->flags & NFS_MOUNT_UNSHARED)
compare_super = NULL;
/* Get a superblock - note that we may end up sharing one that already exists */
s = sget(fs_type, compare_super, nfs_set_super, server);
s = sget(fs_type, compare_super, nfs_set_super, &sb_mntdata);
if (IS_ERR(s)) {
error = PTR_ERR(s);
goto out_err_nosb;
}
if (s->s_fs_info != server) {
error = nfs_compare_mount_options(s, server, flags);
nfs_free_server(server);
server = NULL;
if (error < 0)
goto error_splat_super;
}
if (!s->s_root) {
/* initial superblock/root creation */
s->s_flags = flags;
nfs_fill_super(s, data);
}
@@ -1460,6 +1469,9 @@ static int nfs_xdev_get_sb(struct file_system_type *fs_type, int flags,
struct nfs_server *server;
struct dentry *mntroot;
int (*compare_super)(struct super_block *, void *) = nfs_compare_super;
struct nfs_sb_mountdata sb_mntdata = {
.mntflags = flags,
};
int error;
dprintk("--> nfs_xdev_get_sb()\n");
@@ -1470,28 +1482,25 @@ static int nfs_xdev_get_sb(struct file_system_type *fs_type, int flags,
error = PTR_ERR(server);
goto out_err_noserver;
}
sb_mntdata.server = server;
if (server->flags & NFS_MOUNT_UNSHARED)
compare_super = NULL;
/* Get a superblock - note that we may end up sharing one that already exists */
s = sget(&nfs_fs_type, compare_super, nfs_set_super, server);
s = sget(&nfs_fs_type, compare_super, nfs_set_super, &sb_mntdata);
if (IS_ERR(s)) {
error = PTR_ERR(s);
goto out_err_nosb;
}
if (s->s_fs_info != server) {
error = nfs_compare_mount_options(s, server, flags);
nfs_free_server(server);
server = NULL;
if (error < 0)
goto error_splat_super;
}
if (!s->s_root) {
/* initial superblock/root creation */
s->s_flags = flags;
nfs_clone_super(s, data->sb);
}
@@ -1668,7 +1677,7 @@ static int nfs4_validate_mount_data(struct nfs4_mount_data **options,
/* while calculating len, pretend ':' is '\0' */
len = c - dev_name;
if (len > NFS4_MAXNAMLEN)
return -EINVAL;
return -ENAMETOOLONG;
*hostname = kzalloc(len, GFP_KERNEL);
if (*hostname == NULL)
return -ENOMEM;
@@ -1677,7 +1686,7 @@ static int nfs4_validate_mount_data(struct nfs4_mount_data **options,
c++; /* step over the ':' */
len = strlen(c);
if (len > NFS4_MAXPATHLEN)
return -EINVAL;
return -ENAMETOOLONG;
*mntpath = kzalloc(len + 1, GFP_KERNEL);
if (*mntpath == NULL)
return -ENOMEM;
@@ -1729,6 +1738,9 @@ static int nfs4_get_sb(struct file_system_type *fs_type,
struct dentry *mntroot;
char *mntpath = NULL, *hostname = NULL, *ip_addr = NULL;
int (*compare_super)(struct super_block *, void *) = nfs_compare_super;
struct nfs_sb_mountdata sb_mntdata = {
.mntflags = flags,
};
int error;
/* Validate the mount data */
@@ -1744,12 +1756,13 @@ static int nfs4_get_sb(struct file_system_type *fs_type,
error = PTR_ERR(server);
goto out;
}
sb_mntdata.server = server;
if (server->flags & NFS4_MOUNT_UNSHARED)
compare_super = NULL;
/* Get a superblock - note that we may end up sharing one that already exists */
s = sget(fs_type, compare_super, nfs_set_super, server);
s = sget(fs_type, compare_super, nfs_set_super, &sb_mntdata);
if (IS_ERR(s)) {
error = PTR_ERR(s);
goto out_free;
@@ -1762,7 +1775,6 @@ static int nfs4_get_sb(struct file_system_type *fs_type,
if (!s->s_root) {
/* initial superblock/root creation */
s->s_flags = flags;
nfs4_fill_super(s);
}
@@ -1816,6 +1828,9 @@ static int nfs4_xdev_get_sb(struct file_system_type *fs_type, int flags,
struct nfs_server *server;
struct dentry *mntroot;
int (*compare_super)(struct super_block *, void *) = nfs_compare_super;
struct nfs_sb_mountdata sb_mntdata = {
.mntflags = flags,
};
int error;
dprintk("--> nfs4_xdev_get_sb()\n");
@@ -1826,12 +1841,13 @@ static int nfs4_xdev_get_sb(struct file_system_type *fs_type, int flags,
error = PTR_ERR(server);
goto out_err_noserver;
}
sb_mntdata.server = server;
if (server->flags & NFS4_MOUNT_UNSHARED)
compare_super = NULL;
/* Get a superblock - note that we may end up sharing one that already exists */
s = sget(&nfs_fs_type, compare_super, nfs_set_super, server);
s = sget(&nfs_fs_type, compare_super, nfs_set_super, &sb_mntdata);
if (IS_ERR(s)) {
error = PTR_ERR(s);
goto out_err_nosb;
@@ -1844,7 +1860,6 @@ static int nfs4_xdev_get_sb(struct file_system_type *fs_type, int flags,
if (!s->s_root) {
/* initial superblock/root creation */
s->s_flags = flags;
nfs4_clone_super(s, data->sb);
}
@@ -1887,6 +1902,9 @@ static int nfs4_referral_get_sb(struct file_system_type *fs_type, int flags,
struct dentry *mntroot;
struct nfs_fh mntfh;
int (*compare_super)(struct super_block *, void *) = nfs_compare_super;
struct nfs_sb_mountdata sb_mntdata = {
.mntflags = flags,
};
int error;
dprintk("--> nfs4_referral_get_sb()\n");
@@ -1897,12 +1915,13 @@ static int nfs4_referral_get_sb(struct file_system_type *fs_type, int flags,
error = PTR_ERR(server);
goto out_err_noserver;
}
sb_mntdata.server = server;
if (server->flags & NFS4_MOUNT_UNSHARED)
compare_super = NULL;
/* Get a superblock - note that we may end up sharing one that already exists */
s = sget(&nfs_fs_type, compare_super, nfs_set_super, server);
s = sget(&nfs_fs_type, compare_super, nfs_set_super, &sb_mntdata);
if (IS_ERR(s)) {
error = PTR_ERR(s);
goto out_err_nosb;
@@ -1915,7 +1934,6 @@ static int nfs4_referral_get_sb(struct file_system_type *fs_type, int flags,
if (!s->s_root) {
/* initial superblock/root creation */
s->s_flags = flags;
nfs4_fill_super(s);
}

44
fs/nfs/write.c
Vedi File

@@ -1396,6 +1396,50 @@ out:
return ret;
}
int nfs_wb_page_cancel(struct inode *inode, struct page *page)
{
struct nfs_page *req;
loff_t range_start = page_offset(page);
loff_t range_end = range_start + (loff_t)(PAGE_CACHE_SIZE - 1);
struct writeback_control wbc = {
.bdi = page->mapping->backing_dev_info,
.sync_mode = WB_SYNC_ALL,
.nr_to_write = LONG_MAX,
.range_start = range_start,
.range_end = range_end,
};
int ret = 0;
BUG_ON(!PageLocked(page));
for (;;) {
req = nfs_page_find_request(page);
if (req == NULL)
goto out;
if (test_bit(PG_NEED_COMMIT, &req->wb_flags)) {
nfs_release_request(req);
break;
}
if (nfs_lock_request_dontget(req)) {
nfs_inode_remove_request(req);
/*
* In case nfs_inode_remove_request has marked the
* page as being dirty
*/
cancel_dirty_page(page, PAGE_CACHE_SIZE);
nfs_unlock_request(req);
break;
}
ret = nfs_wait_on_request(req);
if (ret < 0)
goto out;
}
if (!PagePrivate(page))
return 0;
ret = nfs_sync_mapping_wait(page->mapping, &wbc, FLUSH_INVALIDATE);
out:
return ret;
}
int nfs_wb_page_priority(struct inode *inode, struct page *page, int how)
{
loff_t range_start = page_offset(page);

20
fs/nfsd/nfsfh.c
Vedi File

@@ -566,13 +566,23 @@ enum fsid_source fsid_source(struct svc_fh *fhp)
case FSID_DEV:
case FSID_ENCODE_DEV:
case FSID_MAJOR_MINOR:
return FSIDSOURCE_DEV;
if (fhp->fh_export->ex_dentry->d_inode->i_sb->s_type->fs_flags
& FS_REQUIRES_DEV)
return FSIDSOURCE_DEV;
break;
case FSID_NUM:
return FSIDSOURCE_FSID;
default:
if (fhp->fh_export->ex_flags & NFSEXP_FSID)
return FSIDSOURCE_FSID;
else
return FSIDSOURCE_UUID;
break;
default:
break;
}
/* either a UUID type filehandle, or the filehandle doesn't
* match the export.
*/
if (fhp->fh_export->ex_flags & NFSEXP_FSID)
return FSIDSOURCE_FSID;
if (fhp->fh_export->ex_uuid)
return FSIDSOURCE_UUID;
return FSIDSOURCE_DEV;
}

3
fs/nfsd/vfs.c
Vedi File

@@ -115,7 +115,8 @@ nfsd_cross_mnt(struct svc_rqst *rqstp, struct dentry **dpp,
exp2 = rqst_exp_get_by_name(rqstp, mnt, mounts);
if (IS_ERR(exp2)) {
err = PTR_ERR(exp2);
if (PTR_ERR(exp2) != -ENOENT)
err = PTR_ERR(exp2);
dput(mounts);
mntput(mnt);
goto out;

1
fs/ocfs2/alloc.c
Vedi File

@@ -5602,6 +5602,7 @@ static int ocfs2_do_truncate(struct ocfs2_super *osb,
clusters_to_del;
spin_unlock(&OCFS2_I(inode)->ip_lock);
le32_add_cpu(&fe->i_clusters, -clusters_to_del);
inode->i_blocks = ocfs2_inode_sector_count(inode);
status = ocfs2_trim_tree(inode, path, handle, tc,
clusters_to_del, &delete_blk);

37
fs/ocfs2/aops.c
Vedi File

@@ -855,6 +855,7 @@ static int ocfs2_alloc_write_ctxt(struct ocfs2_write_ctxt **wcp,
struct ocfs2_super *osb, loff_t pos,
unsigned len, struct buffer_head *di_bh)
{
u32 cend;
struct ocfs2_write_ctxt *wc;
wc = kzalloc(sizeof(struct ocfs2_write_ctxt), GFP_NOFS);
@@ -862,7 +863,8 @@ static int ocfs2_alloc_write_ctxt(struct ocfs2_write_ctxt **wcp,
return -ENOMEM;
wc->w_cpos = pos >> osb->s_clustersize_bits;
wc->w_clen = ocfs2_clusters_for_bytes(osb->sb, len);
cend = (pos + len - 1) >> osb->s_clustersize_bits;
wc->w_clen = cend - wc->w_cpos + 1;
get_bh(di_bh);
wc->w_di_bh = di_bh;
@@ -928,18 +930,11 @@ static void ocfs2_write_failure(struct inode *inode,
loff_t user_pos, unsigned user_len)
{
int i;
unsigned from, to;
unsigned from = user_pos & (PAGE_CACHE_SIZE - 1),
to = user_pos + user_len;
struct page *tmppage;
ocfs2_zero_new_buffers(wc->w_target_page, user_pos, user_len);
if (wc->w_large_pages) {
from = wc->w_target_from;
to = wc->w_target_to;
} else {
from = 0;
to = PAGE_CACHE_SIZE;
}
ocfs2_zero_new_buffers(wc->w_target_page, from, to);
for(i = 0; i < wc->w_num_pages; i++) {
tmppage = wc->w_pages[i];
@@ -989,9 +984,6 @@ static int ocfs2_prepare_page_for_write(struct inode *inode, u64 *p_blkno,
map_from = cluster_start;
map_to = cluster_end;
}
wc->w_target_from = map_from;
wc->w_target_to = map_to;
} else {
/*
* If we haven't allocated the new page yet, we
@@ -1209,18 +1201,33 @@ static int ocfs2_write_cluster_by_desc(struct address_space *mapping,
loff_t pos, unsigned len)
{
int ret, i;
loff_t cluster_off;
unsigned int local_len = len;
struct ocfs2_write_cluster_desc *desc;
struct ocfs2_super *osb = OCFS2_SB(mapping->host->i_sb);
for (i = 0; i < wc->w_clen; i++) {
desc = &wc->w_desc[i];
/*
* We have to make sure that the total write passed in
* doesn't extend past a single cluster.
*/
local_len = len;
cluster_off = pos & (osb->s_clustersize - 1);
if ((cluster_off + local_len) > osb->s_clustersize)
local_len = osb->s_clustersize - cluster_off;
ret = ocfs2_write_cluster(mapping, desc->c_phys,
desc->c_unwritten, data_ac, meta_ac,
wc, desc->c_cpos, pos, len);
wc, desc->c_cpos, pos, local_len);
if (ret) {
mlog_errno(ret);
goto out;
}
len -= local_len;
pos += local_len;
}
ret = 0;

5
fs/ocfs2/file.c
Vedi File

@@ -314,7 +314,6 @@ static int ocfs2_orphan_for_truncate(struct ocfs2_super *osb,
}
i_size_write(inode, new_i_size);
inode->i_blocks = ocfs2_align_bytes_to_sectors(new_i_size);
inode->i_ctime = inode->i_mtime = CURRENT_TIME;
di = (struct ocfs2_dinode *) fe_bh->b_data;
@@ -492,8 +491,8 @@ int ocfs2_do_extend_allocation(struct ocfs2_super *osb,
goto leave;
}
status = ocfs2_claim_clusters(osb, handle, data_ac, 1,
&bit_off, &num_bits);
status = __ocfs2_claim_clusters(osb, handle, data_ac, 1,
clusters_to_add, &bit_off, &num_bits);
if (status < 0) {
if (status != -ENOSPC)
mlog_errno(status);

8
fs/ocfs2/localalloc.c
Vedi File

@@ -514,8 +514,10 @@ int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb,
ac->ac_bh = osb->local_alloc_bh;
status = 0;
bail:
if (status < 0 && local_alloc_inode)
if (status < 0 && local_alloc_inode) {
mutex_unlock(&local_alloc_inode->i_mutex);
iput(local_alloc_inode);
}
mlog_exit(status);
return status;
@@ -524,13 +526,12 @@ bail:
int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb,
handle_t *handle,
struct ocfs2_alloc_context *ac,
u32 min_bits,
u32 bits_wanted,
u32 *bit_off,
u32 *num_bits)
{
int status, start;
struct inode *local_alloc_inode;
u32 bits_wanted;
void *bitmap;
struct ocfs2_dinode *alloc;
struct ocfs2_local_alloc *la;
@@ -538,7 +539,6 @@ int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb,
mlog_entry_void();
BUG_ON(ac->ac_which != OCFS2_AC_USE_LOCAL);
bits_wanted = ac->ac_bits_wanted - ac->ac_bits_given;
local_alloc_inode = ac->ac_inode;
alloc = (struct ocfs2_dinode *) osb->local_alloc_bh->b_data;
la = OCFS2_LOCAL_ALLOC(alloc);

2
fs/ocfs2/localalloc.h
Vedi File

@@ -48,7 +48,7 @@ int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb,
int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb,
handle_t *handle,
struct ocfs2_alloc_context *ac,
u32 min_bits,
u32 bits_wanted,
u32 *bit_off,
u32 *num_bits);

29
fs/ocfs2/suballoc.c
Vedi File

@@ -1486,21 +1486,21 @@ static inline void ocfs2_block_to_cluster_group(struct inode *inode,
* contig. allocation, set to '1' to indicate we can deal with extents
* of any size.
*/
int ocfs2_claim_clusters(struct ocfs2_super *osb,
handle_t *handle,
struct ocfs2_alloc_context *ac,
u32 min_clusters,
u32 *cluster_start,
u32 *num_clusters)
int __ocfs2_claim_clusters(struct ocfs2_super *osb,
handle_t *handle,
struct ocfs2_alloc_context *ac,
u32 min_clusters,
u32 max_clusters,
u32 *cluster_start,
u32 *num_clusters)
{
int status;
unsigned int bits_wanted = ac->ac_bits_wanted - ac->ac_bits_given;
unsigned int bits_wanted = max_clusters;
u64 bg_blkno = 0;
u16 bg_bit_off;
mlog_entry_void();
BUG_ON(!ac);
BUG_ON(ac->ac_bits_given >= ac->ac_bits_wanted);
BUG_ON(ac->ac_which != OCFS2_AC_USE_LOCAL
@@ -1557,6 +1557,19 @@ bail:
return status;
}
int ocfs2_claim_clusters(struct ocfs2_super *osb,
handle_t *handle,
struct ocfs2_alloc_context *ac,
u32 min_clusters,
u32 *cluster_start,
u32 *num_clusters)
{
unsigned int bits_wanted = ac->ac_bits_wanted - ac->ac_bits_given;
return __ocfs2_claim_clusters(osb, handle, ac, min_clusters,
bits_wanted, cluster_start, num_clusters);
}
static inline int ocfs2_block_group_clear_bits(handle_t *handle,
struct inode *alloc_inode,
struct ocfs2_group_desc *bg,

11
fs/ocfs2/suballoc.h
Vedi File

@@ -85,6 +85,17 @@ int ocfs2_claim_clusters(struct ocfs2_super *osb,
u32 min_clusters,
u32 *cluster_start,
u32 *num_clusters);
/*
* Use this variant of ocfs2_claim_clusters to specify a maxiumum
* number of clusters smaller than the allocation reserved.
*/
int __ocfs2_claim_clusters(struct ocfs2_super *osb,
handle_t *handle,
struct ocfs2_alloc_context *ac,
u32 min_clusters,
u32 max_clusters,
u32 *cluster_start,
u32 *num_clusters);
int ocfs2_free_suballoc_bits(handle_t *handle,
struct inode *alloc_inode,

69
fs/ocfs2/super.c
Vedi File

@@ -81,8 +81,15 @@ static struct dentry *ocfs2_debugfs_root = NULL;
MODULE_AUTHOR("Oracle");
MODULE_LICENSE("GPL");
struct mount_options
{
unsigned long mount_opt;
unsigned int atime_quantum;
signed short slot;
};
static int ocfs2_parse_options(struct super_block *sb, char *options,
unsigned long *mount_opt, s16 *slot,
struct mount_options *mopt,
int is_remount);
static void ocfs2_put_super(struct super_block *sb);
static int ocfs2_mount_volume(struct super_block *sb);
@@ -367,24 +374,23 @@ static int ocfs2_remount(struct super_block *sb, int *flags, char *data)
{
int incompat_features;
int ret = 0;
unsigned long parsed_options;
s16 slot;
struct mount_options parsed_options;
struct ocfs2_super *osb = OCFS2_SB(sb);
if (!ocfs2_parse_options(sb, data, &parsed_options, &slot, 1)) {
if (!ocfs2_parse_options(sb, data, &parsed_options, 1)) {
ret = -EINVAL;
goto out;
}
if ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) !=
(parsed_options & OCFS2_MOUNT_HB_LOCAL)) {
(parsed_options.mount_opt & OCFS2_MOUNT_HB_LOCAL)) {
ret = -EINVAL;
mlog(ML_ERROR, "Cannot change heartbeat mode on remount\n");
goto out;
}
if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) !=
(parsed_options & OCFS2_MOUNT_DATA_WRITEBACK)) {
(parsed_options.mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) {
ret = -EINVAL;
mlog(ML_ERROR, "Cannot change data mode on remount\n");
goto out;
@@ -435,7 +441,9 @@ unlock_osb:
/* Only save off the new mount options in case of a successful
* remount. */
osb->s_mount_opt = parsed_options;
osb->s_mount_opt = parsed_options.mount_opt;
osb->s_atime_quantum = parsed_options.atime_quantum;
osb->preferred_slot = parsed_options.slot;
}
out:
return ret;
@@ -547,8 +555,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
{
struct dentry *root;
int status, sector_size;
unsigned long parsed_opt;
s16 slot;
struct mount_options parsed_options;
struct inode *inode = NULL;
struct ocfs2_super *osb = NULL;
struct buffer_head *bh = NULL;
@@ -556,14 +563,14 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
mlog_entry("%p, %p, %i", sb, data, silent);
if (!ocfs2_parse_options(sb, data, &parsed_opt, &slot, 0)) {
if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) {
status = -EINVAL;
goto read_super_error;
}
/* for now we only have one cluster/node, make sure we see it
* in the heartbeat universe */
if (parsed_opt & OCFS2_MOUNT_HB_LOCAL) {
if (parsed_options.mount_opt & OCFS2_MOUNT_HB_LOCAL) {
if (!o2hb_check_local_node_heartbeating()) {
status = -EINVAL;
goto read_super_error;
@@ -585,8 +592,9 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
}
brelse(bh);
bh = NULL;
osb->s_mount_opt = parsed_opt;
osb->preferred_slot = slot;
osb->s_mount_opt = parsed_options.mount_opt;
osb->s_atime_quantum = parsed_options.atime_quantum;
osb->preferred_slot = parsed_options.slot;
sb->s_magic = OCFS2_SUPER_MAGIC;
@@ -728,8 +736,7 @@ static struct file_system_type ocfs2_fs_type = {
static int ocfs2_parse_options(struct super_block *sb,
char *options,
unsigned long *mount_opt,
s16 *slot,
struct mount_options *mopt,
int is_remount)
{
int status;
@@ -738,8 +745,9 @@ static int ocfs2_parse_options(struct super_block *sb,
mlog_entry("remount: %d, options: \"%s\"\n", is_remount,
options ? options : "(none)");
*mount_opt = 0;
*slot = OCFS2_INVALID_SLOT;
mopt->mount_opt = 0;
mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM;
mopt->slot = OCFS2_INVALID_SLOT;
if (!options) {
status = 1;
@@ -749,7 +757,6 @@ static int ocfs2_parse_options(struct super_block *sb,
while ((p = strsep(&options, ",")) != NULL) {
int token, option;
substring_t args[MAX_OPT_ARGS];
struct ocfs2_super * osb = OCFS2_SB(sb);
if (!*p)
continue;
@@ -757,10 +764,10 @@ static int ocfs2_parse_options(struct super_block *sb,
token = match_token(p, tokens, args);
switch (token) {
case Opt_hb_local:
*mount_opt |= OCFS2_MOUNT_HB_LOCAL;
mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL;
break;
case Opt_hb_none:
*mount_opt &= ~OCFS2_MOUNT_HB_LOCAL;
mopt->mount_opt &= ~OCFS2_MOUNT_HB_LOCAL;
break;
case Opt_barrier:
if (match_int(&args[0], &option)) {
@@ -768,27 +775,27 @@ static int ocfs2_parse_options(struct super_block *sb,
goto bail;
}
if (option)
*mount_opt |= OCFS2_MOUNT_BARRIER;
mopt->mount_opt |= OCFS2_MOUNT_BARRIER;
else
*mount_opt &= ~OCFS2_MOUNT_BARRIER;
mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER;
break;
case Opt_intr:
*mount_opt &= ~OCFS2_MOUNT_NOINTR;
mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR;
break;
case Opt_nointr:
*mount_opt |= OCFS2_MOUNT_NOINTR;
mopt->mount_opt |= OCFS2_MOUNT_NOINTR;
break;
case Opt_err_panic:
*mount_opt |= OCFS2_MOUNT_ERRORS_PANIC;
mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC;
break;
case Opt_err_ro:
*mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC;
mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC;
break;
case Opt_data_ordered:
*mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK;
mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK;
break;
case Opt_data_writeback:
*mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK;
mopt->mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK;
break;
case Opt_atime_quantum:
if (match_int(&args[0], &option)) {
@@ -796,9 +803,7 @@ static int ocfs2_parse_options(struct super_block *sb,
goto bail;
}
if (option >= 0)
osb->s_atime_quantum = option;
else
osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM;
mopt->atime_quantum = option;
break;
case Opt_slot:
option = 0;
@@ -807,7 +812,7 @@ static int ocfs2_parse_options(struct super_block *sb,
goto bail;
}
if (option)
*slot = (s16)option;
mopt->slot = (s16)option;
break;
default:
mlog(ML_ERROR,

4
fs/ocfs2/vote.c
Vedi File

@@ -66,7 +66,7 @@ struct ocfs2_vote_msg
{
struct ocfs2_msg_hdr v_hdr;
__be32 v_reserved1;
};
} __attribute__ ((packed));
/* Responses are given these values to maintain backwards
* compatibility with older ocfs2 versions */
@@ -78,7 +78,7 @@ struct ocfs2_response_msg
{
struct ocfs2_msg_hdr r_hdr;
__be32 r_response;
};
} __attribute__ ((packed));
struct ocfs2_vote_work {
struct list_head w_list;

44
fs/proc/array.c
Vedi File

@@ -320,7 +320,21 @@ int proc_pid_status(struct task_struct *task, char *buffer)
return buffer - orig;
}
static clock_t task_utime(struct task_struct *p)
/*
* Use precise platform statistics if available:
*/
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
static cputime_t task_utime(struct task_struct *p)
{
return p->utime;
}
static cputime_t task_stime(struct task_struct *p)
{
return p->stime;
}
#else
static cputime_t task_utime(struct task_struct *p)
{
clock_t utime = cputime_to_clock_t(p->utime),
total = utime + cputime_to_clock_t(p->stime);
@@ -337,10 +351,10 @@ static clock_t task_utime(struct task_struct *p)
}
utime = (clock_t)temp;
return utime;
return clock_t_to_cputime(utime);
}
static clock_t task_stime(struct task_struct *p)
static cputime_t task_stime(struct task_struct *p)
{
clock_t stime;
@@ -349,10 +363,12 @@ static clock_t task_stime(struct task_struct *p)
* the total, to make sure the total observed by userspace
* grows monotonically - apps rely on that):
*/
stime = nsec_to_clock_t(p->se.sum_exec_runtime) - task_utime(p);
stime = nsec_to_clock_t(p->se.sum_exec_runtime) -
cputime_to_clock_t(task_utime(p));
return stime;
return clock_t_to_cputime(stime);
}
#endif
static int do_task_stat(struct task_struct *task, char *buffer, int whole)
{
@@ -368,8 +384,7 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole)
unsigned long long start_time;
unsigned long cmin_flt = 0, cmaj_flt = 0;
unsigned long min_flt = 0, maj_flt = 0;
cputime_t cutime, cstime;
clock_t utime, stime;
cputime_t cutime, cstime, utime, stime;
unsigned long rsslim = 0;
char tcomm[sizeof(task->comm)];
unsigned long flags;
@@ -387,8 +402,7 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole)
sigemptyset(&sigign);
sigemptyset(&sigcatch);
cutime = cstime = cputime_zero;
utime = stime = 0;
cutime = cstime = utime = stime = cputime_zero;
rcu_read_lock();
if (lock_task_sighand(task, &flags)) {
@@ -414,15 +428,15 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole)
do {
min_flt += t->min_flt;
maj_flt += t->maj_flt;
utime += task_utime(t);
stime += task_stime(t);
utime = cputime_add(utime, task_utime(t));
stime = cputime_add(stime, task_stime(t));
t = next_thread(t);
} while (t != task);
min_flt += sig->min_flt;
maj_flt += sig->maj_flt;
utime += cputime_to_clock_t(sig->utime);
stime += cputime_to_clock_t(sig->stime);
utime = cputime_add(utime, sig->utime);
stime = cputime_add(stime, sig->stime);
}
sid = signal_session(sig);
@@ -471,8 +485,8 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole)
cmin_flt,
maj_flt,
cmaj_flt,
utime,
stime,
cputime_to_clock_t(utime),
cputime_to_clock_t(stime),
cputime_to_clock_t(cutime),
cputime_to_clock_t(cstime),
priority,

3
fs/proc/inode.c
Vedi File

@@ -11,6 +11,7 @@
#include <linux/string.h>
#include <linux/stat.h>
#include <linux/completion.h>
#include <linux/poll.h>
#include <linux/file.h>
#include <linux/limits.h>
#include <linux/init.h>
@@ -232,7 +233,7 @@ static ssize_t proc_reg_write(struct file *file, const char __user *buf, size_t
static unsigned int proc_reg_poll(struct file *file, struct poll_table_struct *pts)
{
struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode);
unsigned int rv = 0;
unsigned int rv = DEFAULT_POLLMASK;
unsigned int (*poll)(struct file *, struct poll_table_struct *);
spin_lock(&pde->pde_unload_lock);

13
fs/reiserfs/super.c
Vedi File

@@ -1915,8 +1915,11 @@ static int reiserfs_release_dquot(struct dquot *dquot)
ret =
journal_begin(&th, dquot->dq_sb,
REISERFS_QUOTA_DEL_BLOCKS(dquot->dq_sb));
if (ret)
if (ret) {
/* Release dquot anyway to avoid endless cycle in dqput() */
dquot_release(dquot);
goto out;
}
ret = dquot_release(dquot);
err =
journal_end(&th, dquot->dq_sb,
@@ -2067,6 +2070,12 @@ static ssize_t reiserfs_quota_write(struct super_block *sb, int type,
size_t towrite = len;
struct buffer_head tmp_bh, *bh;
if (!current->journal_info) {
printk(KERN_WARNING "reiserfs: Quota write (off=%Lu, len=%Lu)"
" cancelled because transaction is not started.\n",
(unsigned long long)off, (unsigned long long)len);
return -EIO;
}
mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA);
while (towrite > 0) {
tocopy = sb->s_blocksize - offset < towrite ?
@@ -2098,7 +2107,7 @@ static ssize_t reiserfs_quota_write(struct super_block *sb, int type,
data += tocopy;
blk++;
}
out:
out:
if (len == towrite)
return err;
if (inode->i_size < off + len - towrite)

2
fs/select.c
Vedi File

@@ -26,8 +26,6 @@
#include <asm/uaccess.h>
#define DEFAULT_POLLMASK (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM)
struct poll_table_page {
struct poll_table_page * next;
struct poll_table_entry * entry;

190
fs/signalfd.c
Vedi File

@@ -11,8 +11,10 @@
* Now using anonymous inode source.
* Thanks to Oleg Nesterov for useful code review and suggestions.
* More comments and suggestions from Arnd Bergmann.
* Sat May 19, 2007: Davi E. M. Arnaut <davi@haxent.com.br>
* Sat May 19, 2007: Davi E. M. Arnaut <davi@haxent.com.br>
* Retrieve multiple signals with one read() call
* Sun Jul 15, 2007: Davide Libenzi <davidel@xmailserver.org>
* Attach to the sighand only during read() and poll().
*/
#include <linux/file.h>
@@ -27,102 +29,12 @@
#include <linux/signalfd.h>
struct signalfd_ctx {
struct list_head lnk;
wait_queue_head_t wqh;
sigset_t sigmask;
struct task_struct *tsk;
};
struct signalfd_lockctx {
struct task_struct *tsk;
unsigned long flags;
};
/*
* Tries to acquire the sighand lock. We do not increment the sighand
* use count, and we do not even pin the task struct, so we need to
* do it inside an RCU read lock, and we must be prepared for the
* ctx->tsk going to NULL (in signalfd_deliver()), and for the sighand
* being detached. We return 0 if the sighand has been detached, or
* 1 if we were able to pin the sighand lock.
*/
static int signalfd_lock(struct signalfd_ctx *ctx, struct signalfd_lockctx *lk)
{
struct sighand_struct *sighand = NULL;
rcu_read_lock();
lk->tsk = rcu_dereference(ctx->tsk);
if (likely(lk->tsk != NULL))
sighand = lock_task_sighand(lk->tsk, &lk->flags);
rcu_read_unlock();
if (!sighand)
return 0;
if (!ctx->tsk) {
unlock_task_sighand(lk->tsk, &lk->flags);
return 0;
}
if (lk->tsk->tgid == current->tgid)
lk->tsk = current;
return 1;
}
static void signalfd_unlock(struct signalfd_lockctx *lk)
{
unlock_task_sighand(lk->tsk, &lk->flags);
}
/*
* This must be called with the sighand lock held.
*/
void signalfd_deliver(struct task_struct *tsk, int sig)
{
struct sighand_struct *sighand = tsk->sighand;
struct signalfd_ctx *ctx, *tmp;
BUG_ON(!sig);
list_for_each_entry_safe(ctx, tmp, &sighand->signalfd_list, lnk) {
/*
* We use a negative signal value as a way to broadcast that the
* sighand has been orphaned, so that we can notify all the
* listeners about this. Remember the ctx->sigmask is inverted,
* so if the user is interested in a signal, that corresponding
* bit will be zero.
*/
if (sig < 0) {
if (ctx->tsk == tsk) {
ctx->tsk = NULL;
list_del_init(&ctx->lnk);
wake_up(&ctx->wqh);
}
} else {
if (!sigismember(&ctx->sigmask, sig))
wake_up(&ctx->wqh);
}
}
}
static void signalfd_cleanup(struct signalfd_ctx *ctx)
{
struct signalfd_lockctx lk;
/*
* This is tricky. If the sighand is gone, we do not need to remove
* context from the list, the list itself won't be there anymore.
*/
if (signalfd_lock(ctx, &lk)) {
list_del(&ctx->lnk);
signalfd_unlock(&lk);
}
kfree(ctx);
}
static int signalfd_release(struct inode *inode, struct file *file)
{
signalfd_cleanup(file->private_data);
kfree(file->private_data);
return 0;
}
@@ -130,23 +42,15 @@ static unsigned int signalfd_poll(struct file *file, poll_table *wait)
{
struct signalfd_ctx *ctx = file->private_data;
unsigned int events = 0;
struct signalfd_lockctx lk;
poll_wait(file, &ctx->wqh, wait);
poll_wait(file, &current->sighand->signalfd_wqh, wait);
/*
* Let the caller get a POLLIN in this case, ala socket recv() when
* the peer disconnects.
*/
if (signalfd_lock(ctx, &lk)) {
if ((lk.tsk == current &&
next_signal(&lk.tsk->pending, &ctx->sigmask) > 0) ||
next_signal(&lk.tsk->signal->shared_pending,
&ctx->sigmask) > 0)
events |= POLLIN;
signalfd_unlock(&lk);
} else
spin_lock_irq(&current->sighand->siglock);
if (next_signal(&current->pending, &ctx->sigmask) ||
next_signal(&current->signal->shared_pending,
&ctx->sigmask))
events |= POLLIN;
spin_unlock_irq(&current->sighand->siglock);
return events;
}
@@ -219,59 +123,46 @@ static ssize_t signalfd_dequeue(struct signalfd_ctx *ctx, siginfo_t *info,
int nonblock)
{
ssize_t ret;
struct signalfd_lockctx lk;
DECLARE_WAITQUEUE(wait, current);
if (!signalfd_lock(ctx, &lk))
return 0;
ret = dequeue_signal(lk.tsk, &ctx->sigmask, info);
spin_lock_irq(&current->sighand->siglock);
ret = dequeue_signal(current, &ctx->sigmask, info);
switch (ret) {
case 0:
if (!nonblock)
break;
ret = -EAGAIN;
default:
signalfd_unlock(&lk);
spin_unlock_irq(&current->sighand->siglock);
return ret;
}
add_wait_queue(&ctx->wqh, &wait);
add_wait_queue(&current->sighand->signalfd_wqh, &wait);
for (;;) {
set_current_state(TASK_INTERRUPTIBLE);
ret = dequeue_signal(lk.tsk, &ctx->sigmask, info);
signalfd_unlock(&lk);
ret = dequeue_signal(current, &ctx->sigmask, info);
if (ret != 0)
break;
if (signal_pending(current)) {
ret = -ERESTARTSYS;
break;
}
spin_unlock_irq(&current->sighand->siglock);
schedule();
ret = signalfd_lock(ctx, &lk);
if (unlikely(!ret)) {
/*
* Let the caller read zero byte, ala socket
* recv() when the peer disconnect. This test
* must be done before doing a dequeue_signal(),
* because if the sighand has been orphaned,
* the dequeue_signal() call is going to crash
* because ->sighand will be long gone.
*/
break;
}
spin_lock_irq(&current->sighand->siglock);
}
spin_unlock_irq(&current->sighand->siglock);
remove_wait_queue(&ctx->wqh, &wait);
remove_wait_queue(&current->sighand->signalfd_wqh, &wait);
__set_current_state(TASK_RUNNING);
return ret;
}
/*
* Returns either the size of a "struct signalfd_siginfo", or zero if the
* sighand we are attached to, has been orphaned. The "count" parameter
* must be at least the size of a "struct signalfd_siginfo".
* Returns a multiple of the size of a "struct signalfd_siginfo", or a negative
* error code. The "count" parameter must be at least the size of a
* "struct signalfd_siginfo".
*/
static ssize_t signalfd_read(struct file *file, char __user *buf, size_t count,
loff_t *ppos)
@@ -287,7 +178,6 @@ static ssize_t signalfd_read(struct file *file, char __user *buf, size_t count,
return -EINVAL;
siginfo = (struct signalfd_siginfo __user *) buf;
do {
ret = signalfd_dequeue(ctx, &info, nonblock);
if (unlikely(ret <= 0))
@@ -300,7 +190,7 @@ static ssize_t signalfd_read(struct file *file, char __user *buf, size_t count,
nonblock = 1;
} while (--count);
return total ? total : ret;
return total ? total: ret;
}
static const struct file_operations signalfd_fops = {
@@ -309,20 +199,13 @@ static const struct file_operations signalfd_fops = {
.read = signalfd_read,
};
/*
* Create a file descriptor that is associated with our signal
* state. We can pass it around to others if we want to, but
* it will always be _our_ signal state.
*/
asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask)
{
int error;
sigset_t sigmask;
struct signalfd_ctx *ctx;
struct sighand_struct *sighand;
struct file *file;
struct inode *inode;
struct signalfd_lockctx lk;
if (sizemask != sizeof(sigset_t) ||
copy_from_user(&sigmask, user_mask, sizeof(sigmask)))
@@ -335,17 +218,7 @@ asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemas
if (!ctx)
return -ENOMEM;
init_waitqueue_head(&ctx->wqh);
ctx->sigmask = sigmask;
ctx->tsk = current->group_leader;
sighand = current->sighand;
/*
* Add this fd to the list of signal listeners.
*/
spin_lock_irq(&sighand->siglock);
list_add_tail(&ctx->lnk, &sighand->signalfd_list);
spin_unlock_irq(&sighand->siglock);
/*
* When we call this, the initialization must be complete, since
@@ -364,23 +237,18 @@ asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemas
fput(file);
return -EINVAL;
}
/*
* We need to be prepared of the fact that the sighand this fd
* is attached to, has been detched. In that case signalfd_lock()
* will return 0, and we'll just skip setting the new mask.
*/
if (signalfd_lock(ctx, &lk)) {
ctx->sigmask = sigmask;
signalfd_unlock(&lk);
}
wake_up(&ctx->wqh);
spin_lock_irq(&current->sighand->siglock);
ctx->sigmask = sigmask;
spin_unlock_irq(&current->sighand->siglock);
wake_up(&current->sighand->signalfd_wqh);
fput(file);
}
return ufd;
err_fdalloc:
signalfd_cleanup(ctx);
kfree(ctx);
return error;
}

46
fs/splice.c
Vedi File

@@ -1223,6 +1223,33 @@ static long do_splice(struct file *in, loff_t __user *off_in,
return -EINVAL;
}
/*
* Do a copy-from-user while holding the mmap_semaphore for reading, in a
* manner safe from deadlocking with simultaneous mmap() (grabbing mmap_sem
* for writing) and page faulting on the user memory pointed to by src.
* This assumes that we will very rarely hit the partial != 0 path, or this
* will not be a win.
*/
static int copy_from_user_mmap_sem(void *dst, const void __user *src, size_t n)
{
int partial;
pagefault_disable();
partial = __copy_from_user_inatomic(dst, src, n);
pagefault_enable();
/*
* Didn't copy everything, drop the mmap_sem and do a faulting copy
*/
if (unlikely(partial)) {
up_read(&current->mm->mmap_sem);
partial = copy_from_user(dst, src, n);
down_read(&current->mm->mmap_sem);
}
return partial;
}
/*
* Map an iov into an array of pages and offset/length tupples. With the
* partial_page structure, we can map several non-contiguous ranges into
@@ -1236,31 +1263,26 @@ static int get_iovec_page_array(const struct iovec __user *iov,
{
int buffers = 0, error = 0;
/*
* It's ok to take the mmap_sem for reading, even
* across a "get_user()".
*/
down_read(&current->mm->mmap_sem);
while (nr_vecs) {
unsigned long off, npages;
struct iovec entry;
void __user *base;
size_t len;
int i;
/*
* Get user address base and length for this iovec.
*/
error = get_user(base, &iov->iov_base);
if (unlikely(error))
break;
error = get_user(len, &iov->iov_len);
if (unlikely(error))
error = -EFAULT;
if (copy_from_user_mmap_sem(&entry, iov, sizeof(entry)))
break;
base = entry.iov_base;
len = entry.iov_len;
/*
* Sanity check this iovec. 0 read succeeds.
*/
error = 0;
if (unlikely(!len))
break;
error = -EFAULT;

7
fs/sysfs/bin.c
Vedi File

@@ -248,12 +248,7 @@ int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr)
void sysfs_remove_bin_file(struct kobject * kobj, struct bin_attribute * attr)
{
if (sysfs_hash_and_remove(kobj->sd, attr->attr.name) < 0) {
printk(KERN_ERR "%s: "
"bad dentry or inode or no such file: \"%s\"\n",
__FUNCTION__, attr->attr.name);
dump_stack();
}
sysfs_hash_and_remove(kobj->sd, attr->attr.name);
}
EXPORT_SYMBOL_GPL(sysfs_create_bin_file);

21
fs/sysfs/dir.c
Vedi File

@@ -762,12 +762,15 @@ static int sysfs_count_nlink(struct sysfs_dirent *sd)
static struct dentry * sysfs_lookup(struct inode *dir, struct dentry *dentry,
struct nameidata *nd)
{
struct dentry *ret = NULL;
struct sysfs_dirent * parent_sd = dentry->d_parent->d_fsdata;
struct sysfs_dirent * sd;
struct bin_attribute *bin_attr;
struct inode *inode;
int found = 0;
mutex_lock(&sysfs_mutex);
for (sd = parent_sd->s_children; sd; sd = sd->s_sibling) {
if (sysfs_type(sd) &&
!strcmp(sd->s_name, dentry->d_name.name)) {
@@ -778,14 +781,14 @@ static struct dentry * sysfs_lookup(struct inode *dir, struct dentry *dentry,
/* no such entry */
if (!found)
return NULL;
goto out_unlock;
/* attach dentry and inode */
inode = sysfs_get_inode(sd);
if (!inode)
return ERR_PTR(-ENOMEM);
mutex_lock(&sysfs_mutex);
if (!inode) {
ret = ERR_PTR(-ENOMEM);
goto out_unlock;
}
if (inode->i_state & I_NEW) {
/* initialize inode according to type */
@@ -815,9 +818,9 @@ static struct dentry * sysfs_lookup(struct inode *dir, struct dentry *dentry,
sysfs_instantiate(dentry, inode);
sysfs_attach_dentry(sd, dentry);
out_unlock:
mutex_unlock(&sysfs_mutex);
return NULL;
return ret;
}
const struct inode_operations sysfs_dir_inode_operations = {
@@ -942,6 +945,8 @@ int sysfs_rename_dir(struct kobject *kobj, struct sysfs_dirent *new_parent_sd,
if (error)
goto out_drop;
mutex_lock(&sysfs_mutex);
dup_name = sd->s_name;
sd->s_name = new_name;
@@ -949,8 +954,6 @@ int sysfs_rename_dir(struct kobject *kobj, struct sysfs_dirent *new_parent_sd,
d_add(new_dentry, NULL);
d_move(sd->s_dentry, new_dentry);
mutex_lock(&sysfs_mutex);
sysfs_unlink_sibling(sd);
sysfs_get(new_parent_sd);
sysfs_put(sd->s_parent);

10
fs/udf/balloc.c
Vedi File

@@ -540,26 +540,24 @@ static void udf_table_free_blocks(struct super_block *sb,
if (epos.offset + adsize > sb->s_blocksize) {
loffset = epos.offset;
aed->lengthAllocDescs = cpu_to_le32(adsize);
sptr = UDF_I_DATA(inode) + epos.offset -
udf_file_entry_alloc_offset(inode) +
UDF_I_LENEATTR(inode) - adsize;
sptr = UDF_I_DATA(table) + epos.offset - adsize;
dptr = epos.bh->b_data + sizeof(struct allocExtDesc);
memcpy(dptr, sptr, adsize);
epos.offset = sizeof(struct allocExtDesc) + adsize;
} else {
loffset = epos.offset + adsize;
aed->lengthAllocDescs = cpu_to_le32(0);
sptr = oepos.bh->b_data + epos.offset;
epos.offset = sizeof(struct allocExtDesc);
if (oepos.bh) {
sptr = oepos.bh->b_data + epos.offset;
aed = (struct allocExtDesc *)oepos.bh->b_data;
aed->lengthAllocDescs =
cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) + adsize);
} else {
sptr = UDF_I_DATA(table) + epos.offset;
UDF_I_LENALLOC(table) += adsize;
mark_inode_dirty(table);
}
epos.offset = sizeof(struct allocExtDesc);
}
if (UDF_SB_UDFREV(sb) >= 0x0200)
udf_new_tag(epos.bh->b_data, TAG_IDENT_AED, 3, 1,

26
fs/udf/super.c
Vedi File

@@ -89,7 +89,7 @@ static int udf_find_fileset(struct super_block *, kernel_lb_addr *,
static void udf_load_pvoldesc(struct super_block *, struct buffer_head *);
static void udf_load_fileset(struct super_block *, struct buffer_head *,
kernel_lb_addr *);
static void udf_load_partdesc(struct super_block *, struct buffer_head *);
static int udf_load_partdesc(struct super_block *, struct buffer_head *);
static void udf_open_lvid(struct super_block *);
static void udf_close_lvid(struct super_block *);
static unsigned int udf_count_free(struct super_block *);
@@ -877,7 +877,7 @@ static void udf_load_fileset(struct super_block *sb, struct buffer_head *bh,
root->logicalBlockNum, root->partitionReferenceNum);
}
static void udf_load_partdesc(struct super_block *sb, struct buffer_head *bh)
static int udf_load_partdesc(struct super_block *sb, struct buffer_head *bh)
{
struct partitionDesc *p;
int i;
@@ -912,6 +912,11 @@ static void udf_load_partdesc(struct super_block *sb, struct buffer_head *bh)
UDF_SB_PARTMAPS(sb)[i].s_uspace.s_table =
udf_iget(sb, loc);
if (!UDF_SB_PARTMAPS(sb)[i].s_uspace.s_table) {
udf_debug("cannot load unallocSpaceTable (part %d)\n",
i);
return 1;
}
UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_UNALLOC_TABLE;
udf_debug("unallocSpaceTable (part %d) @ %ld\n",
i, UDF_SB_PARTMAPS(sb)[i].s_uspace.s_table->i_ino);
@@ -938,6 +943,11 @@ static void udf_load_partdesc(struct super_block *sb, struct buffer_head *bh)
UDF_SB_PARTMAPS(sb)[i].s_fspace.s_table =
udf_iget(sb, loc);
if (!UDF_SB_PARTMAPS(sb)[i].s_fspace.s_table) {
udf_debug("cannot load freedSpaceTable (part %d)\n",
i);
return 1;
}
UDF_SB_PARTFLAGS(sb,i) |= UDF_PART_FLAG_FREED_TABLE;
udf_debug("freedSpaceTable (part %d) @ %ld\n",
i, UDF_SB_PARTMAPS(sb)[i].s_fspace.s_table->i_ino);
@@ -966,6 +976,7 @@ static void udf_load_partdesc(struct super_block *sb, struct buffer_head *bh)
le16_to_cpu(p->partitionNumber), i, UDF_SB_PARTTYPE(sb,i),
UDF_SB_PARTROOT(sb,i), UDF_SB_PARTLEN(sb,i));
}
return 0;
}
static int udf_load_logicalvol(struct super_block *sb, struct buffer_head *bh,
@@ -1177,12 +1188,19 @@ static int udf_process_sequence(struct super_block *sb, long block, long lastblo
udf_load_logicalvol(sb, bh, fileset);
} else if (i == VDS_POS_PARTITION_DESC) {
struct buffer_head *bh2 = NULL;
udf_load_partdesc(sb, bh);
if (udf_load_partdesc(sb, bh)) {
brelse(bh);
return 1;
}
for (j = vds[i].block + 1; j < vds[VDS_POS_TERMINATING_DESC].block; j++) {
bh2 = udf_read_tagged(sb, j, j, &ident);
gd = (struct generic_desc *)bh2->b_data;
if (ident == TAG_IDENT_PD)
udf_load_partdesc(sb, bh2);
if (udf_load_partdesc(sb, bh2)) {
brelse(bh);
brelse(bh2);
return 1;
}
brelse(bh2);
}
}

4
fs/ufs/super.c
Vedi File

@@ -894,7 +894,7 @@ magic_found:
goto again;
}
sbi->s_flags = flags;/*after that line some functions use s_flags*/
ufs_print_super_stuff(sb, usb1, usb2, usb3);
/*
@@ -1025,8 +1025,6 @@ magic_found:
UFS_MOUNT_UFSTYPE_44BSD)
uspi->s_maxsymlinklen =
fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen);
sbi->s_flags = flags;
inode = iget(sb, UFS_ROOTINO);
if (!inode || is_bad_inode(inode))

2
fs/xfs/linux-2.6/kmem.h
Vedi File

@@ -103,7 +103,7 @@ extern void *kmem_zone_zalloc(kmem_zone_t *, unsigned int __nocast);
static inline int
kmem_shake_allow(gfp_t gfp_mask)
{
return (gfp_mask & __GFP_WAIT);
return (gfp_mask & __GFP_WAIT) != 0;
}
#endif /* __XFS_SUPPORT_KMEM_H__ */

9
fs/xfs/linux-2.6/xfs_aops.c
Vedi File

@@ -181,6 +181,7 @@ xfs_setfilesize(
ip->i_d.di_size = isize;
ip->i_update_core = 1;
ip->i_update_size = 1;
mark_inode_dirty_sync(vn_to_inode(ioend->io_vnode));
}
xfs_iunlock(ip, XFS_ILOCK_EXCL);
@@ -652,7 +653,7 @@ xfs_probe_cluster(
for (i = 0; i < pagevec_count(&pvec); i++) {
struct page *page = pvec.pages[i];
size_t pg_offset, len = 0;
size_t pg_offset, pg_len = 0;
if (tindex == tlast) {
pg_offset =
@@ -665,16 +666,16 @@ xfs_probe_cluster(
pg_offset = PAGE_CACHE_SIZE;
if (page->index == tindex && !TestSetPageLocked(page)) {
len = xfs_probe_page(page, pg_offset, mapped);
pg_len = xfs_probe_page(page, pg_offset, mapped);
unlock_page(page);
}
if (!len) {
if (!pg_len) {
done = 1;
break;
}
total += len;
total += pg_len;
tindex++;
}

2
fs/xfs/linux-2.6/xfs_globals.c
Vedi File

@@ -46,7 +46,7 @@ xfs_param_t xfs_params = {
.inherit_nosym = { 0, 0, 1 },
.rotorstep = { 1, 1, 255 },
.inherit_nodfrg = { 0, 1, 1 },
.fstrm_timer = { 1, 50, 3600*100},
.fstrm_timer = { 1, 30*100, 3600*100},
};
/*

4
fs/xfs/linux-2.6/xfs_super.c
Vedi File

@@ -415,8 +415,10 @@ xfs_fs_write_inode(
if (vp) {
vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
if (sync)
if (sync) {
filemap_fdatawait(inode->i_mapping);
flags |= FLUSH_SYNC;
}
error = bhv_vop_iflush(vp, flags);
if (error == EAGAIN)
error = sync? bhv_vop_iflush(vp, flags | FLUSH_LOG) : 0;

3
fs/xfs/quota/xfs_qm.c
Vedi File

@@ -120,7 +120,8 @@ xfs_Gqm_init(void)
* Initialize the dquot hash tables.
*/
udqhash = kmem_zalloc_greedy(&hsize,
XFS_QM_HASHSIZE_LOW, XFS_QM_HASHSIZE_HIGH,
XFS_QM_HASHSIZE_LOW * sizeof(xfs_dqhash_t),
XFS_QM_HASHSIZE_HIGH * sizeof(xfs_dqhash_t),
KM_SLEEP | KM_MAYFAIL | KM_LARGE);
gdqhash = kmem_zalloc(hsize, KM_SLEEP | KM_LARGE);
hsize /= sizeof(xfs_dqhash_t);

10
fs/xfs/support/debug.h
Vedi File

@@ -34,10 +34,10 @@ extern void cmn_err(int, char *, ...)
extern void assfail(char *expr, char *f, int l);
#define ASSERT_ALWAYS(expr) \
(unlikely((expr) != 0) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
(unlikely(expr) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
#ifndef DEBUG
# define ASSERT(expr) ((void)0)
#define ASSERT(expr) ((void)0)
#ifndef STATIC
# define STATIC static noinline
@@ -49,8 +49,10 @@ extern void assfail(char *expr, char *f, int l);
#else /* DEBUG */
# define ASSERT(expr) ASSERT_ALWAYS(expr)
# include <linux/random.h>
#include <linux/random.h>
#define ASSERT(expr) \
(unlikely(expr) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
#ifndef STATIC
# define STATIC noinline

1
fs/xfs/xfs_da_btree.c
Vedi File

@@ -1975,7 +1975,6 @@ xfs_da_do_buf(
error = mappedbno == -2 ? 0 : XFS_ERROR(EFSCORRUPTED);
if (unlikely(error == EFSCORRUPTED)) {
if (xfs_error_level >= XFS_ERRLEVEL_LOW) {
int i;
cmn_err(CE_ALERT, "xfs_da_do_buf: bno %lld\n",
(long long)bno);
cmn_err(CE_ALERT, "dir: inode %lld\n",

10
fs/xfs/xfs_filestream.c
Vedi File

@@ -350,9 +350,10 @@ _xfs_filestream_update_ag(
/* xfs_fstrm_free_func(): callback for freeing cached stream items. */
void
xfs_fstrm_free_func(
xfs_ino_t ino,
fstrm_item_t *item)
unsigned long ino,
void *data)
{
fstrm_item_t *item = (fstrm_item_t *)data;
xfs_inode_t *ip = item->ip;
int ref;
@@ -438,7 +439,7 @@ xfs_filestream_mount(
grp_count = 10;
err = xfs_mru_cache_create(&mp->m_filestream, lifetime, grp_count,
(xfs_mru_cache_free_func_t)xfs_fstrm_free_func);
xfs_fstrm_free_func);
return err;
}
@@ -467,8 +468,7 @@ void
xfs_filestream_flush(
xfs_mount_t *mp)
{
/* point in time flush, so keep the reaper running */
xfs_mru_cache_flush(mp->m_filestream, 1);
xfs_mru_cache_flush(mp->m_filestream);
}
/*

12
fs/xfs/xfs_log.c
Vedi File

@@ -2185,13 +2185,13 @@ xlog_state_do_callback(
}
cb = iclog->ic_callback;
while (cb != 0) {
while (cb) {
iclog->ic_callback_tail = &(iclog->ic_callback);
iclog->ic_callback = NULL;
LOG_UNLOCK(log, s);
/* perform callbacks in the order given */
for (; cb != 0; cb = cb_next) {
for (; cb; cb = cb_next) {
cb_next = cb->cb_next;
cb->cb_func(cb->cb_arg, aborted);
}
@@ -2202,7 +2202,7 @@ xlog_state_do_callback(
loopdidcallbacks++;
funcdidcallbacks++;
ASSERT(iclog->ic_callback == 0);
ASSERT(iclog->ic_callback == NULL);
if (!(iclog->ic_state & XLOG_STATE_IOERROR))
iclog->ic_state = XLOG_STATE_DIRTY;
@@ -3242,10 +3242,10 @@ xlog_ticket_put(xlog_t *log,
#else
/* When we debug, it is easier if tickets are cycled */
ticket->t_next = NULL;
if (log->l_tail != 0) {
if (log->l_tail) {
log->l_tail->t_next = ticket;
} else {
ASSERT(log->l_freelist == 0);
ASSERT(log->l_freelist == NULL);
log->l_freelist = ticket;
}
log->l_tail = ticket;
@@ -3463,7 +3463,7 @@ xlog_verify_iclog(xlog_t *log,
s = LOG_LOCK(log);
icptr = log->l_iclog;
for (i=0; i < log->l_iclog_bufs; i++) {
if (icptr == 0)
if (icptr == NULL)
xlog_panic("xlog_verify_iclog: invalid ptr");
icptr = icptr->ic_next;
}

12
fs/xfs/xfs_log_recover.c
Vedi File

@@ -1366,7 +1366,7 @@ xlog_recover_add_to_cont_trans(
int old_len;
item = trans->r_itemq;
if (item == 0) {
if (item == NULL) {
/* finish copying rest of trans header */
xlog_recover_add_item(&trans->r_itemq);
ptr = (xfs_caddr_t) &trans->r_theader +
@@ -1412,7 +1412,7 @@ xlog_recover_add_to_trans(
if (!len)
return 0;
item = trans->r_itemq;
if (item == 0) {
if (item == NULL) {
ASSERT(*(uint *)dp == XFS_TRANS_HEADER_MAGIC);
if (len == sizeof(xfs_trans_header_t))
xlog_recover_add_item(&trans->r_itemq);
@@ -1467,12 +1467,12 @@ xlog_recover_unlink_tid(
xlog_recover_t *tp;
int found = 0;
ASSERT(trans != 0);
ASSERT(trans != NULL);
if (trans == *q) {
*q = (*q)->r_next;
} else {
tp = *q;
while (tp != 0) {
while (tp) {
if (tp->r_next == trans) {
found = 1;
break;
@@ -1495,7 +1495,7 @@ xlog_recover_insert_item_backq(
xlog_recover_item_t **q,
xlog_recover_item_t *item)
{
if (*q == 0) {
if (*q == NULL) {
item->ri_prev = item->ri_next = item;
*q = item;
} else {
@@ -1899,7 +1899,7 @@ xlog_recover_do_reg_buffer(
break;
nbits = xfs_contig_bits(data_map, map_size, bit);
ASSERT(nbits > 0);
ASSERT(item->ri_buf[i].i_addr != 0);
ASSERT(item->ri_buf[i].i_addr != NULL);
ASSERT(item->ri_buf[i].i_len % XFS_BLI_CHUNK == 0);
ASSERT(XFS_BUF_COUNT(bp) >=
((uint)bit << XFS_BLI_SHIFT)+(nbits<<XFS_BLI_SHIFT));

72
fs/xfs/xfs_mru_cache.c
Vedi File

@@ -206,8 +206,11 @@ _xfs_mru_cache_list_insert(
*/
if (!_xfs_mru_cache_migrate(mru, now)) {
mru->time_zero = now;
if (!mru->next_reap)
mru->next_reap = mru->grp_count * mru->grp_time;
if (!mru->queued) {
mru->queued = 1;
queue_delayed_work(xfs_mru_reap_wq, &mru->work,
mru->grp_count * mru->grp_time);
}
} else {
grp = (now - mru->time_zero) / mru->grp_time;
grp = (mru->lru_grp + grp) % mru->grp_count;
@@ -271,29 +274,26 @@ _xfs_mru_cache_reap(
struct work_struct *work)
{
xfs_mru_cache_t *mru = container_of(work, xfs_mru_cache_t, work.work);
unsigned long now;
unsigned long now, next;
ASSERT(mru && mru->lists);
if (!mru || !mru->lists)
return;
mutex_spinlock(&mru->lock);
now = jiffies;
if (mru->reap_all ||
(mru->next_reap && time_after(now, mru->next_reap))) {
if (mru->reap_all)
now += mru->grp_count * mru->grp_time * 2;
mru->next_reap = _xfs_mru_cache_migrate(mru, now);
_xfs_mru_cache_clear_reap_list(mru);
next = _xfs_mru_cache_migrate(mru, jiffies);
_xfs_mru_cache_clear_reap_list(mru);
mru->queued = next;
if ((mru->queued > 0)) {
now = jiffies;
if (next <= now)
next = 0;
else
next -= now;
queue_delayed_work(xfs_mru_reap_wq, &mru->work, next);
}
/*
* the process that triggered the reap_all is responsible
* for restating the periodic reap if it is required.
*/
if (!mru->reap_all)
queue_delayed_work(xfs_mru_reap_wq, &mru->work, mru->grp_time);
mru->reap_all = 0;
mutex_spinunlock(&mru->lock, 0);
}
@@ -352,7 +352,7 @@ xfs_mru_cache_create(
/* An extra list is needed to avoid reaping up to a grp_time early. */
mru->grp_count = grp_count + 1;
mru->lists = kmem_alloc(mru->grp_count * sizeof(*mru->lists), KM_SLEEP);
mru->lists = kmem_zalloc(mru->grp_count * sizeof(*mru->lists), KM_SLEEP);
if (!mru->lists) {
err = ENOMEM;
@@ -374,11 +374,6 @@ xfs_mru_cache_create(
mru->grp_time = grp_time;
mru->free_func = free_func;
/* start up the reaper event */
mru->next_reap = 0;
mru->reap_all = 0;
queue_delayed_work(xfs_mru_reap_wq, &mru->work, mru->grp_time);
*mrup = mru;
exit:
@@ -394,35 +389,25 @@ exit:
* Call xfs_mru_cache_flush() to flush out all cached entries, calling their
* free functions as they're deleted. When this function returns, the caller is
* guaranteed that all the free functions for all the elements have finished
* executing.
*
* While we are flushing, we stop the periodic reaper event from triggering.
* Normally, we want to restart this periodic event, but if we are shutting
* down the cache we do not want it restarted. hence the restart parameter
* where 0 = do not restart reaper and 1 = restart reaper.
* executing and the reaper is not running.
*/
void
xfs_mru_cache_flush(
xfs_mru_cache_t *mru,
int restart)
xfs_mru_cache_t *mru)
{
if (!mru || !mru->lists)
return;
cancel_rearming_delayed_workqueue(xfs_mru_reap_wq, &mru->work);
mutex_spinlock(&mru->lock);
mru->reap_all = 1;
mutex_spinunlock(&mru->lock, 0);
if (mru->queued) {
mutex_spinunlock(&mru->lock, 0);
cancel_rearming_delayed_workqueue(xfs_mru_reap_wq, &mru->work);
mutex_spinlock(&mru->lock);
}
queue_work(xfs_mru_reap_wq, &mru->work.work);
flush_workqueue(xfs_mru_reap_wq);
_xfs_mru_cache_migrate(mru, jiffies + mru->grp_count * mru->grp_time);
_xfs_mru_cache_clear_reap_list(mru);
mutex_spinlock(&mru->lock);
WARN_ON_ONCE(mru->reap_all != 0);
mru->reap_all = 0;
if (restart)
queue_delayed_work(xfs_mru_reap_wq, &mru->work, mru->grp_time);
mutex_spinunlock(&mru->lock, 0);
}
@@ -433,8 +418,7 @@ xfs_mru_cache_destroy(
if (!mru || !mru->lists)
return;
/* we don't want the reaper to restart here */
xfs_mru_cache_flush(mru, 0);
xfs_mru_cache_flush(mru);
kmem_free(mru->lists, mru->grp_count * sizeof(*mru->lists));
kmem_free(mru, sizeof(*mru));

6
fs/xfs/xfs_mru_cache.h
Vedi File

@@ -32,11 +32,9 @@ typedef struct xfs_mru_cache
unsigned int grp_time; /* Time period spanned by grps. */
unsigned int lru_grp; /* Group containing time zero. */
unsigned long time_zero; /* Time first element was added. */
unsigned long next_reap; /* Time that the reaper should
next do something. */
unsigned int reap_all; /* if set, reap all lists */
xfs_mru_cache_free_func_t free_func; /* Function pointer for freeing. */
struct delayed_work work; /* Workqueue data for reaping. */
unsigned int queued; /* work has been queued */
} xfs_mru_cache_t;
int xfs_mru_cache_init(void);
@@ -44,7 +42,7 @@ void xfs_mru_cache_uninit(void);
int xfs_mru_cache_create(struct xfs_mru_cache **mrup, unsigned int lifetime_ms,
unsigned int grp_count,
xfs_mru_cache_free_func_t free_func);
void xfs_mru_cache_flush(xfs_mru_cache_t *mru, int restart);
void xfs_mru_cache_flush(xfs_mru_cache_t *mru);
void xfs_mru_cache_destroy(struct xfs_mru_cache *mru);
int xfs_mru_cache_insert(struct xfs_mru_cache *mru, unsigned long key,
void *value);

20
fs/xfs/xfs_vnodeops.c
Vedi File

@@ -1082,6 +1082,9 @@ xfs_fsync(
if (XFS_FORCED_SHUTDOWN(ip->i_mount))
return XFS_ERROR(EIO);
if (flag & FSYNC_DATA)
filemap_fdatawait(vn_to_inode(XFS_ITOV(ip))->i_mapping);
/*
* We always need to make sure that the required inode state
* is safe on disk. The vnode might be clean but because
@@ -3769,12 +3772,16 @@ xfs_inode_flush(
sync_lsn = log->l_last_sync_lsn;
GRANT_UNLOCK(log, s);
if ((XFS_LSN_CMP(iip->ili_last_lsn, sync_lsn) <= 0))
return 0;
if ((XFS_LSN_CMP(iip->ili_last_lsn, sync_lsn) > 0)) {
if (flags & FLUSH_SYNC)
log_flags |= XFS_LOG_SYNC;
error = xfs_log_force(mp, iip->ili_last_lsn, log_flags);
if (error)
return error;
}
if (flags & FLUSH_SYNC)
log_flags |= XFS_LOG_SYNC;
return xfs_log_force(mp, iip->ili_last_lsn, log_flags);
if (ip->i_update_core == 0)
return 0;
}
}
@@ -3788,9 +3795,6 @@ xfs_inode_flush(
if (flags & FLUSH_INODE) {
int flush_flags;
if (xfs_ipincount(ip))
return EAGAIN;
if (flags & FLUSH_SYNC) {
xfs_ilock(ip, XFS_ILOCK_SHARED);
xfs_iflock(ip);