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authorSergio Gelato <Sergio.Gelato@astro.su.se>2014-11-06 14:05:30 +0100
committerJiri Slaby <jslaby@suse.cz>2014-11-13 19:01:52 +0100
commitba1816b40a87a3f3c4ca9cd54a593a10d87bd391 (patch)
tree464f69fd988473762739dc886c369431046c0b6f
parent0e8361ae716b89ea54a97050fbf9d74f6dc4292d (diff)
nfsd: fix NFS regression
Fix regression introduced in pre-3.14 kernels by cherry-picking aa07c713ecfc0522916f3cd57ac628ea6127c0ec (NFSD: Call ->set_acl with a NULL ACL structure if no entries). This is in v3.12.22 as commit 723ac81c8671b3a095d9eb303974c7bc9964b506. The affected code was removed in 3.14 by commit 4ac7249ea5a0ceef9f8269f63f33cc873c3fac61 (nfsd: use get_acl and ->set_acl). The ->set_acl methods are already able to cope with a NULL argument. So this is not needed for >= 3.14. Signed-off-by: Sergio Gelato <Sergio.Gelato@astro.su.se> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-rw-r--r--fs/nfsd/vfs.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index e9a80e4553a3..fafac65804d6 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -509,6 +509,9 @@ set_nfsv4_acl_one(struct dentry *dentry, struct posix_acl *pacl, char *key)
char *buf = NULL;
int error = 0;
+ if (!pacl)
+ return vfs_setxattr(dentry, key, NULL, 0, 0);
+
buflen = posix_acl_xattr_size(pacl->a_count);
buf = kmalloc(buflen, GFP_KERNEL);
error = -ENOMEM;