lkml.org 
[lkml]   [2012]   [Oct]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v7 49/49] vfs: make lremovexattr retry once on ESTALE error
Date
Signed-off-by: Jeff Layton <jlayton@redhat.com>
---
fs/xattr.c | 23 ++++++++++++++---------
1 file changed, 14 insertions(+), 9 deletions(-)

diff --git a/fs/xattr.c b/fs/xattr.c
index d29d5a4..1781875 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -665,16 +665,21 @@ SYSCALL_DEFINE2(lremovexattr, const char __user *, pathname,
{
struct path path;
int error;
+ unsigned int try = 0;
+ unsigned int lookup_flags = 0;

- error = user_lpath(pathname, &path);
- if (error)
- return error;
- error = mnt_want_write(path.mnt);
- if (!error) {
- error = removexattr(path.dentry, name);
- mnt_drop_write(path.mnt);
- }
- path_put(&path);
+ do {
+ error = user_path_at(AT_FDCWD, pathname, lookup_flags, &path);
+ if (error)
+ break;
+ error = mnt_want_write(path.mnt);
+ if (!error) {
+ error = removexattr(path.dentry, name);
+ mnt_drop_write(path.mnt);
+ }
+ path_put(&path);
+ lookup_flags |= LOOKUP_REVAL;
+ } while (retry_estale(error, try++));
return error;
}

--
1.7.11.4


\
 
 \ /
  Last update: 2012-10-03 04:41    [W:0.201 / U:0.684 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site