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nilfs2: remove own inode hash used for GC

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This uses inode hash function that vfs provides instead of the own
hash table for caching gc inodes.  This finally removes the own inode
hash from nilfs.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
This commit is contained in:
Ryusuke Konishi
2010-08-20 19:06:11 +09:00
parent 5e19a995f4
commit 263d90cefc
7 changed files with 64 additions and 142 deletions
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17
fs/nilfs2/ioctl.c
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@@ -333,7 +333,7 @@ static int nilfs_ioctl_move_inode_block(struct inode *inode,
return 0;
}
static int nilfs_ioctl_move_blocks(struct the_nilfs *nilfs,
static int nilfs_ioctl_move_blocks(struct super_block *sb,
struct nilfs_argv *argv, void *buf)
{
size_t nmembs = argv->v_nmembs;
@@ -348,7 +348,7 @@ static int nilfs_ioctl_move_blocks(struct the_nilfs *nilfs,
for (i = 0, vdesc = buf; i < nmembs; ) {
ino = vdesc->vd_ino;
cno = vdesc->vd_cno;
inode = nilfs_gc_iget(nilfs, ino, cno);
inode = nilfs_iget_for_gc(sb, ino, cno);
if (unlikely(inode == NULL)) {
ret = -ENOMEM;
goto failed;
@@ -356,11 +356,15 @@ static int nilfs_ioctl_move_blocks(struct the_nilfs *nilfs,
do {
ret = nilfs_ioctl_move_inode_block(inode, vdesc,
&buffers);
if (unlikely(ret < 0))
if (unlikely(ret < 0)) {
iput(inode);
goto failed;
}
vdesc++;
} while (++i < nmembs &&
vdesc->vd_ino == ino && vdesc->vd_cno == cno);
iput(inode); /* The inode still remains in GC inode list */
}
list_for_each_entry_safe(bh, n, &buffers, b_assoc_buffers) {
@@ -566,7 +570,7 @@ static int nilfs_ioctl_clean_segments(struct inode *inode, struct file *filp,
}
/*
* nilfs_ioctl_move_blocks() will call nilfs_gc_iget(),
* nilfs_ioctl_move_blocks() will call nilfs_iget_for_gc(),
* which will operates an inode list without blocking.
* To protect the list from concurrent operations,
* nilfs_ioctl_move_blocks should be atomic operation.
@@ -576,15 +580,14 @@ static int nilfs_ioctl_clean_segments(struct inode *inode, struct file *filp,
goto out_free;
}
ret = nilfs_ioctl_move_blocks(nilfs, &argv[0], kbufs[0]);
ret = nilfs_ioctl_move_blocks(inode->i_sb, &argv[0], kbufs[0]);
if (ret < 0)
printk(KERN_ERR "NILFS: GC failed during preparation: "
"cannot read source blocks: err=%d\n", ret);
else
ret = nilfs_clean_segments(inode->i_sb, argv, kbufs);
if (ret < 0)
nilfs_remove_all_gcinode(nilfs);
nilfs_remove_all_gcinodes(nilfs);
clear_nilfs_gc_running(nilfs);
out_free: