NFS: Fix NFSv3 exclusive open semantics
Commit c0204fd2b8fe047b18b67e07e1bf2a03691240cd (NFS: Clean up
nfs4_proc_create()) broke NFSv3 exclusive open by removing the code
that passes the O_EXCL flag down to nfs3_proc_create(). This patch
reverts that offending hunk from the original commit.
Reported-by: Nick Bowler <nbowler@elliptictech.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org [2.6.37]
Tested-by: Nick Bowler <nbowler@elliptictech.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 95b081b..64ee240 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1579,6 +1579,7 @@
{
struct iattr attr;
int error;
+ int open_flags = 0;
dfprintk(VFS, "NFS: create(%s/%ld), %s\n",
dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
@@ -1586,7 +1587,10 @@
attr.ia_mode = mode;
attr.ia_valid = ATTR_MODE;
- error = NFS_PROTO(dir)->create(dir, dentry, &attr, 0, NULL);
+ if ((nd->flags & LOOKUP_CREATE) != 0)
+ open_flags = nd->intent.open.flags;
+
+ error = NFS_PROTO(dir)->create(dir, dentry, &attr, open_flags, NULL);
if (error != 0)
goto out_err;
return 0;