From: NeilBrown <ne...@suse.com> 3.12-stable review patch. If anyone has any objections, please let me know.
=============== This is a regression of 3.12 stable commit ba1816b40a87a3f3c4ca9cd54a593a10d87bd391 (nfsd: fix NFS regression). If a non-inherited ACL is set on a directory, nfsd will try to set the Posix default ACL to NULL. This gets converted to "" by generic_setxattr(). As "" is not a valid posix acl attribute value, this results in an error. So instead of setting the xattr to NULL, remove it. Fixes: ba1816b40a ("nfsd: fix NFS regression") Signed-off-by: NeilBrown <ne...@suse.com> Cc: Sergio Gelato <sergio.gel...@astro.su.se> Signed-off-by: Jiri Slaby <jsl...@suse.cz> --- fs/nfsd/vfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index fafac65804d6..e5f146c7c871 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -510,7 +510,7 @@ set_nfsv4_acl_one(struct dentry *dentry, struct posix_acl *pacl, char *key) int error = 0; if (!pacl) - return vfs_setxattr(dentry, key, NULL, 0, 0); + return vfs_removexattr(dentry, key); buflen = posix_acl_xattr_size(pacl->a_count); buf = kmalloc(buflen, GFP_KERNEL); -- 2.7.3