xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Förgrening 0
Kod Ärenden Pull-förfrågningar Actions Packages Projekt Släpp Wiki Aktiviteter

ubifs: Pass struct ubifs_info to ubifs_assert()

Bläddra i källkod 
This allows us to have more context in ubifs_assert()
and take different actions depending on the configuration.

Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Richard Weinberger
2018-07-12 13:01:57 +02:00
förälder 54169ddd38
incheckning 6eb61d587f
31 ändrade filer med 550 tillägg och 521 borttagningar
Download Patch File Download Diff File Expand all files Collapse all files

47
fs/ubifs/file.c
Visa fil

@@ -71,7 +71,7 @@ static int read_block(struct inode *inode, void *addr, unsigned int block,
return err;
}
ubifs_assert(le64_to_cpu(dn->ch.sqnum) >
ubifs_assert(c, le64_to_cpu(dn->ch.sqnum) >
ubifs_inode(inode)->creat_sqnum);
len = le32_to_cpu(dn->size);
if (len <= 0 || len > UBIFS_BLOCK_SIZE)
@@ -115,12 +115,13 @@ static int do_readpage(struct page *page)
unsigned int block, beyond;
struct ubifs_data_node *dn;
struct inode *inode = page->mapping->host;
struct ubifs_info *c = inode->i_sb->s_fs_info;
loff_t i_size = i_size_read(inode);
dbg_gen("ino %lu, pg %lu, i_size %lld, flags %#lx",
inode->i_ino, page->index, i_size, page->flags);
ubifs_assert(!PageChecked(page));
ubifs_assert(!PagePrivate(page));
ubifs_assert(c, !PageChecked(page));
ubifs_assert(c, !PagePrivate(page));
addr = kmap(page);
@@ -441,8 +442,8 @@ static int ubifs_write_begin(struct file *file, struct address_space *mapping,
int skipped_read = 0;
struct page *page;
ubifs_assert(ubifs_inode(inode)->ui_size == inode->i_size);
ubifs_assert(!c->ro_media && !c->ro_mount);
ubifs_assert(c, ubifs_inode(inode)->ui_size == inode->i_size);
ubifs_assert(c, !c->ro_media && !c->ro_mount);
if (unlikely(c->ro_error))
return -EROFS;
@@ -481,7 +482,7 @@ static int ubifs_write_begin(struct file *file, struct address_space *mapping,
err = allocate_budget(c, page, ui, appending);
if (unlikely(err)) {
ubifs_assert(err == -ENOSPC);
ubifs_assert(c, err == -ENOSPC);
/*
* If we skipped reading the page because we were going to
* write all of it, then it is not up to date.
@@ -498,7 +499,7 @@ static int ubifs_write_begin(struct file *file, struct address_space *mapping,
* everything and fall-back to slow-path.
*/
if (appending) {
ubifs_assert(mutex_is_locked(&ui->ui_mutex));
ubifs_assert(c, mutex_is_locked(&ui->ui_mutex));
mutex_unlock(&ui->ui_mutex);
}
unlock_page(page);
@@ -595,7 +596,7 @@ static int ubifs_write_end(struct file *file, struct address_space *mapping,
* '__set_page_dirty_nobuffers()'.
*/
__mark_inode_dirty(inode, I_DIRTY_DATASYNC);
ubifs_assert(mutex_is_locked(&ui->ui_mutex));
ubifs_assert(c, mutex_is_locked(&ui->ui_mutex));
mutex_unlock(&ui->ui_mutex);
}
@@ -648,7 +649,7 @@ static int populate_page(struct ubifs_info *c, struct page *page,
dn = bu->buf + (bu->zbranch[nn].offs - offs);
ubifs_assert(le64_to_cpu(dn->ch.sqnum) >
ubifs_assert(c, le64_to_cpu(dn->ch.sqnum) >
ubifs_inode(inode)->creat_sqnum);
len = le32_to_cpu(dn->size);
@@ -767,8 +768,8 @@ static int ubifs_do_bulk_read(struct ubifs_info *c, struct bu_info *bu,
bu->buf_len = bu->zbranch[bu->cnt - 1].offs +
bu->zbranch[bu->cnt - 1].len -
bu->zbranch[0].offs;
ubifs_assert(bu->buf_len > 0);
ubifs_assert(bu->buf_len <= c->leb_size);
ubifs_assert(c, bu->buf_len > 0);
ubifs_assert(c, bu->buf_len <= c->leb_size);
bu->buf = kmalloc(bu->buf_len, GFP_NOFS | __GFP_NOWARN);
if (!bu->buf)
goto out_bu_off;
@@ -920,7 +921,7 @@ static int do_writepage(struct page *page, int len)
#ifdef UBIFS_DEBUG
struct ubifs_inode *ui = ubifs_inode(inode);
spin_lock(&ui->ui_lock);
ubifs_assert(page->index <= ui->synced_i_size >> PAGE_SHIFT);
ubifs_assert(c, page->index <= ui->synced_i_size >> PAGE_SHIFT);
spin_unlock(&ui->ui_lock);
#endif
@@ -949,7 +950,7 @@ static int do_writepage(struct page *page, int len)
ubifs_ro_mode(c, err);
}
ubifs_assert(PagePrivate(page));
ubifs_assert(c, PagePrivate(page));
if (PageChecked(page))
release_new_page_budget(c);
else
@@ -1014,6 +1015,7 @@ static int do_writepage(struct page *page, int len)
static int ubifs_writepage(struct page *page, struct writeback_control *wbc)
{
struct inode *inode = page->mapping->host;
struct ubifs_info *c = inode->i_sb->s_fs_info;
struct ubifs_inode *ui = ubifs_inode(inode);
loff_t i_size = i_size_read(inode), synced_i_size;
pgoff_t end_index = i_size >> PAGE_SHIFT;
@@ -1022,7 +1024,7 @@ static int ubifs_writepage(struct page *page, struct writeback_control *wbc)
dbg_gen("ino %lu, pg %lu, pg flags %#lx",
inode->i_ino, page->index, page->flags);
ubifs_assert(PagePrivate(page));
ubifs_assert(c, PagePrivate(page));
/* Is the page fully outside @i_size? (truncate in progress) */
if (page->index > end_index || (page->index == end_index && !len)) {
@@ -1167,7 +1169,7 @@ static int do_truncation(struct ubifs_info *c, struct inode *inode,
* 'ubifs_jnl_truncate()' will see an already
* truncated (and up to date) data node.
*/
ubifs_assert(PagePrivate(page));
ubifs_assert(c, PagePrivate(page));
clear_page_dirty_for_io(page);
if (UBIFS_BLOCKS_PER_PAGE_SHIFT)
@@ -1303,7 +1305,7 @@ static void ubifs_invalidatepage(struct page *page, unsigned int offset,
struct inode *inode = page->mapping->host;
struct ubifs_info *c = inode->i_sb->s_fs_info;
ubifs_assert(PagePrivate(page));
ubifs_assert(c, PagePrivate(page));
if (offset || length < PAGE_SIZE)
/* Partial page remains dirty */
return;
@@ -1461,13 +1463,15 @@ static ssize_t ubifs_write_iter(struct kiocb *iocb, struct iov_iter *from)
static int ubifs_set_page_dirty(struct page *page)
{
int ret;
struct inode *inode = page->mapping->host;
struct ubifs_info *c = inode->i_sb->s_fs_info;
ret = __set_page_dirty_nobuffers(page);
/*
* An attempt to dirty a page without budgeting for it - should not
* happen.
*/
ubifs_assert(ret == 0);
ubifs_assert(c, ret == 0);
return ret;
}
@@ -1496,14 +1500,17 @@ static int ubifs_migrate_page(struct address_space *mapping,
static int ubifs_releasepage(struct page *page, gfp_t unused_gfp_flags)
{
struct inode *inode = page->mapping->host;
struct ubifs_info *c = inode->i_sb->s_fs_info;
/*
* An attempt to release a dirty page without budgeting for it - should
* not happen.
*/
if (PageWriteback(page))
return 0;
ubifs_assert(PagePrivate(page));
ubifs_assert(0);
ubifs_assert(c, PagePrivate(page));
ubifs_assert(c, 0);
ClearPagePrivate(page);
ClearPageChecked(page);
return 1;
@@ -1524,7 +1531,7 @@ static vm_fault_t ubifs_vm_page_mkwrite(struct vm_fault *vmf)
dbg_gen("ino %lu, pg %lu, i_size %lld", inode->i_ino, page->index,
i_size_read(inode));
ubifs_assert(!c->ro_media && !c->ro_mount);
ubifs_assert(c, !c->ro_media && !c->ro_mount);
if (unlikely(c->ro_error))
return VM_FAULT_SIGBUS; /* -EROFS */