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gfs2: don't return ENODATA in __gfs2_xattr_set unless replacing

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The function __gfs2_xattr_set() will return -ENODATA when called to
remove a xattr that does not exist. The result is that setfacl will
show an exit status of 1 when called to set only a file's mode bits
(on a file with no ACLs), despite succeeding. A "No data available"
error will be printed as well.

To fix this return 0 instead, except when the XATTR_REPLACE flag is
set, in which case -ENODATA is appropriate. This is consistent with
how most other xattr setting functions work, in other filesystems.

Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
This commit is contained in:
Ernesto A. Fernández 2017-08-30 07:26:30 -05:00 • committed by Bob Peterson
parent c4a9d1892f
commit 54aae14bee
1 changed files with 6 additions and 2 deletions
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8
fs/gfs2/xattr.c
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@ -1210,8 +1210,12 @@ int __gfs2_xattr_set(struct inode *inode, const char *name,
if (namel > GFS2_EA_MAX_NAME_LEN) if (namel > GFS2_EA_MAX_NAME_LEN)
return -ERANGE; return -ERANGE;
if (value == NULL) if (value == NULL) {
return gfs2_xattr_remove(ip, type, name); error = gfs2_xattr_remove(ip, type, name);
if (error == -ENODATA && !(flags & XATTR_REPLACE))
error = 0;
return error;
}
if (ea_check_size(sdp, namel, size)) if (ea_check_size(sdp, namel, size))
return -ERANGE; return -ERANGE;