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authorYan, Zheng <zyan@redhat.com>2016-04-27 12:48:30 +0300
committerIlya Dryomov <idryomov@gmail.com>2016-05-26 02:15:35 +0300
commit956d39d631dbcf7b57854873a24e309047f2a7f5 (patch)
tree1a813b9bf40a2eb0db472fcccfb9932c350315c5 /include/linux/ceph
parent2a5beea3f1b6544d6c72ea220e860a2eda2f9104 (diff)
downloadlinux-956d39d631dbcf7b57854873a24e309047f2a7f5.tar.xz
ceph: define 'end/complete' in readdir reply as bit flags
Set a flag in readdir request, which indicates that client interprets 'end/complete' as bit flags. So that mds can reply additional flags in readdir reply. Signed-off-by: Yan, Zheng <zyan@redhat.com>
Diffstat (limited to 'include/linux/ceph')
-rw-r--r--include/linux/ceph/ceph_fs.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/ceph/ceph_fs.h b/include/linux/ceph/ceph_fs.h
index bae833d0d055..a811c5e98bfa 100644
--- a/include/linux/ceph/ceph_fs.h
+++ b/include/linux/ceph/ceph_fs.h
@@ -347,6 +347,17 @@ extern const char *ceph_mds_op_name(int op);
#define CEPH_XATTR_REPLACE (1 << 1)
#define CEPH_XATTR_REMOVE (1 << 31)
+/*
+ * readdir request flags;
+ */
+#define CEPH_READDIR_REPLY_BITFLAGS (1<<0)
+
+/*
+ * readdir reply flags.
+ */
+#define CEPH_READDIR_FRAG_END (1<<0)
+#define CEPH_READDIR_FRAG_COMPLETE (1<<8)
+
union ceph_mds_request_args {
struct {
__le32 mask; /* CEPH_CAP_* */
@@ -364,6 +375,7 @@ union ceph_mds_request_args {
__le32 frag; /* which dir fragment */
__le32 max_entries; /* how many dentries to grab */
__le32 max_bytes;
+ __le16 flags;
} __attribute__ ((packed)) readdir;
struct {
__le32 mode;