* [PATCH] BTRFS: Free inode mutex on lseek error
@ 2011-08-20 0:07 Andi Kleen
2011-08-20 12:08 ` Josef Bacik
0 siblings, 1 reply; 4+ messages in thread
From: Andi Kleen @ 2011-08-20 0:07 UTC (permalink / raw)
To: linux-btrfs; +Cc: linux-kernel, Andi Kleen, josef, chris.mason
From: Andi Kleen <ak@linux.intel.com>
Introduced with b26751575a9aa55fd6dbf3febde3ff06dfadc44f
Cc: josef@redhat.com
Cc: chris.mason@oracle.com
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
fs/btrfs/file.c | 14 ++++++++------
1 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 658d669..8791613 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1798,16 +1798,15 @@ static loff_t btrfs_file_llseek(struct file *file, loff_t offset, int origin)
case SEEK_DATA:
case SEEK_HOLE:
ret = find_desired_extent(inode, &offset, origin);
- if (ret) {
- mutex_unlock(&inode->i_mutex);
- return ret;
- }
+ if (ret)
+ goto error;
}
+ ret = -EINVAL;
if (offset < 0 && !(file->f_mode & FMODE_UNSIGNED_OFFSET))
- return -EINVAL;
+ goto error;
if (offset > inode->i_sb->s_maxbytes)
- return -EINVAL;
+ goto error;
/* Special lock needed here? */
if (offset != file->f_pos) {
@@ -1817,6 +1816,9 @@ static loff_t btrfs_file_llseek(struct file *file, loff_t offset, int origin)
out:
mutex_unlock(&inode->i_mutex);
return offset;
+error:
+ mutex_unlock(&inode->i_mutex);
+ return ret;
}
const struct file_operations btrfs_file_operations = {
--
1.7.4.4
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH] BTRFS: Free inode mutex on lseek error
2011-08-20 0:07 [PATCH] BTRFS: Free inode mutex on lseek error Andi Kleen
@ 2011-08-20 12:08 ` Josef Bacik
2011-08-20 12:53 ` Andi Kleen
0 siblings, 1 reply; 4+ messages in thread
From: Josef Bacik @ 2011-08-20 12:08 UTC (permalink / raw)
To: Andi Kleen; +Cc: linux-btrfs, linux-kernel, Andi Kleen, chris.mason
On 08/19/2011 08:07 PM, Andi Kleen wrote:
> From: Andi Kleen <ak@linux.intel.com>
>
> Introduced with b26751575a9aa55fd6dbf3febde3ff06dfadc44f
>
This has already been fixed by
9a4327ca1f45f82edad7dc0a4e52ce9316e0950c
Thanks,
Josef
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] BTRFS: Free inode mutex on lseek error
2011-08-20 12:08 ` Josef Bacik
@ 2011-08-20 12:53 ` Andi Kleen
2011-08-20 13:43 ` Josef Bacik
0 siblings, 1 reply; 4+ messages in thread
From: Andi Kleen @ 2011-08-20 12:53 UTC (permalink / raw)
To: Josef Bacik
Cc: Andi Kleen, linux-btrfs, linux-kernel, Andi Kleen, chris.mason
On Sat, Aug 20, 2011 at 08:08:25AM -0400, Josef Bacik wrote:
> On 08/19/2011 08:07 PM, Andi Kleen wrote:
> > From: Andi Kleen <ak@linux.intel.com>
> >
> > Introduced with b26751575a9aa55fd6dbf3febde3ff06dfadc44f
> >
>
> This has already been fixed by
>
> 9a4327ca1f45f82edad7dc0a4e52ce9316e0950c
It's not. That patch returns the wrong return value.
-Andi
---
>From 3c3bb2aa661c2b3405c53ac72e23fc663aea794f Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Sat, 20 Aug 2011 05:49:47 -0700
Subject: [PATCH] BTRFS: Fix lseek return value for error
Introduced by 9a4327ca1f45f82edad7dc0a4e52ce9316e0950c
Signed-off-by: Andi Kleen <ak@linux.intel.com>
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index e7872e4..c6e493f 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1814,19 +1814,17 @@ static loff_t btrfs_file_llseek(struct file *file, loff_t offset, int origin)
case SEEK_DATA:
case SEEK_HOLE:
ret = find_desired_extent(inode, &offset, origin);
- if (ret) {
- mutex_unlock(&inode->i_mutex);
- return ret;
- }
+ if (ret)
+ goto error;
}
if (offset < 0 && !(file->f_mode & FMODE_UNSIGNED_OFFSET)) {
ret = -EINVAL;
- goto out;
+ goto error;
}
if (offset > inode->i_sb->s_maxbytes) {
ret = -EINVAL;
- goto out;
+ goto error;
}
/* Special lock needed here? */
@@ -1837,6 +1835,9 @@ static loff_t btrfs_file_llseek(struct file *file, loff_t offset, int origin)
out:
mutex_unlock(&inode->i_mutex);
return offset;
+error:
+ mutex_unlock(&inode->i_mutex);
+ return ret;
}
const struct file_operations btrfs_file_operations = {
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH] BTRFS: Free inode mutex on lseek error
2011-08-20 12:53 ` Andi Kleen
@ 2011-08-20 13:43 ` Josef Bacik
0 siblings, 0 replies; 4+ messages in thread
From: Josef Bacik @ 2011-08-20 13:43 UTC (permalink / raw)
To: Andi Kleen
Cc: Josef Bacik, linux-btrfs, linux-kernel, Andi Kleen, chris.mason
On Sat, Aug 20, 2011 at 02:53:17PM +0200, Andi Kleen wrote:
> On Sat, Aug 20, 2011 at 08:08:25AM -0400, Josef Bacik wrote:
> > On 08/19/2011 08:07 PM, Andi Kleen wrote:
> > > From: Andi Kleen <ak@linux.intel.com>
> > >
> > > Introduced with b26751575a9aa55fd6dbf3febde3ff06dfadc44f
> > >
> >
> > This has already been fixed by
> >
> > 9a4327ca1f45f82edad7dc0a4e52ce9316e0950c
>
> It's not. That patch returns the wrong return value.
>
Oh duh I see, sorry,
Josef
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2011-08-20 13:43 UTC | newest]
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2011-08-20 0:07 [PATCH] BTRFS: Free inode mutex on lseek error Andi Kleen
2011-08-20 12:08 ` Josef Bacik
2011-08-20 12:53 ` Andi Kleen
2011-08-20 13:43 ` Josef Bacik
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