On Tue, 23 Nov 2010 16:22:21 +0900 (JST), Ryusuke Konishi wrote:
> On Tue, 23 Nov 2010 09:26:02 +0300, Dan Carpenter wrote:
> > nilfs_iget_for_gc() returns an ERR_PTR() on failure and doesn't return
> > NULL.
> >
> > Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
> >
> > diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c
> > index 3e90f86..5bf426f 100644
> > --- a/fs/nilfs2/ioctl.c
> > +++ b/fs/nilfs2/ioctl.c
> > @@ -349,8 +349,8 @@ static int nilfs_ioctl_move_blocks(struct super_block *sb,
> > ino = vdesc->vd_ino;
> > cno = vdesc->vd_cno;
> > inode = nilfs_iget_for_gc(sb, ino, cno);
> > - if (unlikely(inode == NULL)) {
> > - ret = -ENOMEM;
> > + if (unlikely(IS_ERR(inode))) {
> > + ret = PTR_ERR(inode);
> > goto failed;
> > }
> > do {
>
> Good catch!
>
> This looks an -rc1 regression brought about by replacement of the gc
> iget function.
>
> I will send this fix upstream. Thank you.
>
> Ryusuke Konishi
I'll add a minor amendment to your patch because IS_ERR() implies
unlikely().
Thanks,
Ryusuke Konishi
---
From: Dan Carpenter <error27@xxxxxxxxx>
nilfs2: nilfs_iget_for_gc() returns ERR_PTR
nilfs_iget_for_gc() returns an ERR_PTR() on failure and doesn't return
NULL.
Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxxxxxx>
---
fs/nilfs2/ioctl.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c
index 3e90f86..e00d945 100644
--- a/fs/nilfs2/ioctl.c
+++ b/fs/nilfs2/ioctl.c
@@ -349,8 +349,8 @@ static int nilfs_ioctl_move_blocks(struct super_block *sb,
ino = vdesc->vd_ino;
cno = vdesc->vd_cno;
inode = nilfs_iget_for_gc(sb, ino, cno);
- if (unlikely(inode == NULL)) {
- ret = -ENOMEM;
+ if (IS_ERR(inode)) {
+ ret = PTR_ERR(inode);
goto failed;
}
do {
--
1.7.3.2
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