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authorJeff Layton <jlayton@redhat.com>2012-12-20 16:04:09 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2012-12-20 18:50:02 -0500
commitb76d8b82266077dc7098dd13f321a616099a1bd8 (patch)
tree74213ef0c9ba31a937cddb158d5409d39fc3bee9 /fs/namei.c
parent972567f14cbcd437e9a88a73836bbc2ee0720b5f (diff)
downloadlinux-b76d8b82266077dc7098dd13f321a616099a1bd8.tar.gz
vfs: fix mkdirat to retry once on an ESTALE error
Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namei.c')
-rw-r--r--fs/namei.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/namei.c b/fs/namei.c
index b70c191b7e2..1beebc1a38c 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3243,8 +3243,10 @@ SYSCALL_DEFINE3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode)
struct dentry *dentry;
struct path path;
int error;
+ unsigned int lookup_flags = LOOKUP_DIRECTORY;
- dentry = user_path_create(dfd, pathname, &path, LOOKUP_DIRECTORY);
+retry:
+ dentry = user_path_create(dfd, pathname, &path, lookup_flags);
if (IS_ERR(dentry))
return PTR_ERR(dentry);
@@ -3254,6 +3256,10 @@ SYSCALL_DEFINE3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode)
if (!error)
error = vfs_mkdir(path.dentry->d_inode, dentry, mode);
done_path_create(&path, dentry);
+ if (retry_estale(error, lookup_flags)) {
+ lookup_flags |= LOOKUP_REVAL;
+ goto retry;
+ }
return error;
}