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| author | Jeff Layton <jlayton@redhat.com> | 2012-12-20 16:04:09 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-20 18:50:02 -0500 |
| commit | b76d8b82266077dc7098dd13f321a616099a1bd8 (patch) | |
| tree | 74213ef0c9ba31a937cddb158d5409d39fc3bee9 | |
| parent | 972567f14cbcd437e9a88a73836bbc2ee0720b5f (diff) | |
| download | linux-b76d8b82266077dc7098dd13f321a616099a1bd8.tar.bz2 | |
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>
| -rw-r--r-- | fs/namei.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/namei.c b/fs/namei.c index b70c191b7e2b..1beebc1a38c9 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; } |