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From: Shi Weihua on 17 May 2010 21:00
when used Posix File System Test Suite(pjd-fstest) to test btrfs,
some cases about setfacl failed when noacl mount option used.
I simplified used commands in pjd-fstest, and the following steps
can reproduce it.
------------------------
# cd btrfs-part/
# mkdir aaa
# setfacl -m m::rw aaa <- successed, but not expected by pjd-fstest.
------------------------
I checked ext3, a warning message occured, like as:
setfacl: aaa/: Operation not supported
Certainly, it's expected by pjd-fstest.

So, i compared acl.c of btrfs and ext3. Based on that, a patch created.
Fortunately, it works.

Signed-off-by: Shi Weihua <shiwh(a)cn.fujitsu.com>
---
diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
index da3133c..f2e09c2 100644
--- a/fs/btrfs/acl.c
+++ b/fs/btrfs/acl.c
@@ -159,6 +159,9 @@ static int btrfs_xattr_set_acl(struct inode *inode, int type,
int ret;
struct posix_acl *acl = NULL;

+ if (!IS_POSIXACL(inode))
+ return -EOPNOTSUPP;
+
if (value) {
acl = posix_acl_from_xattr(value, size);
if (acl == NULL) {




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Prev: DMAENGINE: extend the control command to include an arg
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