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authorYan, Zheng <zyan@redhat.com>2016-04-27 17:48:30 +0800
committerIlya Dryomov <idryomov@gmail.com>2016-05-26 01:15:35 +0200
commit956d39d631dbcf7b57854873a24e309047f2a7f5 (patch)
tree1a813b9bf40a2eb0db472fcccfb9932c350315c5 /fs
parent2a5beea3f1b6544d6c72ea220e860a2eda2f9104 (diff)
downloadlinux-956d39d631dbcf7b57854873a24e309047f2a7f5.tar.bz2
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 'fs')
-rw-r--r--fs/ceph/dir.c2
-rw-r--r--fs/ceph/mds_client.c7
-rw-r--r--fs/ceph/mds_client.h2
3 files changed, 8 insertions, 3 deletions
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 68530acea2c8..ebcbd1c946b4 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -365,6 +365,8 @@ more:
req->r_readdir_cache_idx = fi->readdir_cache_idx;
req->r_readdir_offset = fi->next_offset;
req->r_args.readdir.frag = cpu_to_le32(frag);
+ req->r_args.readdir.flags =
+ cpu_to_le16(CEPH_READDIR_REPLY_BITFLAGS);
req->r_inode = inode;
ihold(inode);
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 6220d3caf7ab..1c2befcd24fb 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -181,8 +181,11 @@ static int parse_reply_info_dir(void **p, void *end,
ceph_decode_need(p, end, sizeof(num) + 2, bad);
num = ceph_decode_32(p);
- info->dir_end = ceph_decode_8(p);
- info->dir_complete = ceph_decode_8(p);
+ {
+ u16 flags = ceph_decode_16(p);
+ info->dir_end = !!(flags & CEPH_READDIR_FRAG_END);
+ info->dir_complete = !!(flags & CEPH_READDIR_FRAG_COMPLETE);
+ }
if (num == 0)
goto done;
diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h
index 0b84f9c0afa3..2a865812a41b 100644
--- a/fs/ceph/mds_client.h
+++ b/fs/ceph/mds_client.h
@@ -80,7 +80,7 @@ struct ceph_mds_reply_info_parsed {
struct ceph_mds_reply_dirfrag *dir_dir;
size_t dir_buf_size;
int dir_nr;
- u8 dir_complete, dir_end;
+ bool dir_complete, dir_end;
struct ceph_mds_reply_dir_entry *dir_entries;
};