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ceph: remove xattr when null value is given to setxattr()

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For the setxattr request, introduce a new flag CEPH_XATTR_REMOVE
to distinguish null value case from the zero-length value case.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
This commit is contained in:
Yan, Zheng
2014-02-11 13:04:19 +08:00
committed by Sage Weil
parent fbc0b970dd
commit bcdfeb2eb4
2 changed files with 17 additions and 4 deletions
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5
include/linux/ceph/ceph_fs.h
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@@ -373,8 +373,9 @@ extern const char *ceph_mds_op_name(int op);
/*
* Ceph setxattr request flags.
*/
#define CEPH_XATTR_CREATE 1
#define CEPH_XATTR_REPLACE 2
#define CEPH_XATTR_CREATE (1 << 0)
#define CEPH_XATTR_REPLACE (1 << 1)
#define CEPH_XATTR_REMOVE (1 << 31)
union ceph_mds_request_args {
struct {