linux/fs/ceph
Yan, Zheng 79162547b7 ceph: make seeky readdir more efficient
Current cephfs client uses string to indicate start position of
readdir. The string is last entry of previous readdir reply.
This approach does not work for seeky readdir because we can
not easily convert the new postion to a string. For seeky readdir,
mds needs to return dentries from the beginning. Client keeps
retrying if the reply does not contain the dentry it wants.

In current version of ceph, mds sorts CDentry in its cache in
hash order. Client also uses dentry hash to compose dir postion.
For seeky readdir, if client passes the hash part of dir postion
to mds. mds can avoid replying useless dentries.

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2017-05-04 09:19:20 +02:00
..
acl.c ceph: Propagate dentry down to inode_change_ok() 2016-09-22 10:56:19 +02:00
addr.c sched/headers: Prepare for the reduction of <linux/sched.h>'s signal API dependency 2017-03-02 08:42:37 +01:00
cache.c ceph: fix spelling mistake: "enabing" -> "enabling" 2017-02-20 12:16:05 +01:00
cache.h ceph: improve fscache revalidation 2016-06-01 10:31:50 +02:00
caps.c ceph: convert ceph_cap_snap.nref from atomic_t to refcount_t 2017-05-04 09:19:18 +02:00
ceph_frag.c
debugfs.c ceph: allow connecting to mds whose rank >= mdsmap::m_max_mds 2017-05-04 09:19:20 +02:00
dir.c ceph: make seeky readdir more efficient 2017-05-04 09:19:20 +02:00
export.c ceph: add a new flag to indicate whether parent is locked 2017-02-20 12:16:08 +01:00
file.c ceph: fix wrong check in ceph_renew_caps() 2017-05-04 09:19:19 +02:00
inode.c ceph: make seeky readdir more efficient 2017-05-04 09:19:20 +02:00
ioctl.c ceph: fix bogus endianness change in ceph_ioctl_set_layout 2017-02-20 12:16:07 +01:00
ioctl.h
Kconfig ceph: add acl for cephfs 2013-12-31 20:32:01 +02:00
locks.c ceph: fix mandatory flock check 2016-10-03 16:13:49 +02:00
Makefile ceph: add acl for cephfs 2013-12-31 20:32:01 +02:00
mds_client.c ceph: make seeky readdir more efficient 2017-05-04 09:19:20 +02:00
mds_client.h ceph: make seeky readdir more efficient 2017-05-04 09:19:20 +02:00
mdsmap.c ceph: allow connecting to mds whose rank >= mdsmap::m_max_mds 2017-05-04 09:19:20 +02:00
snap.c ceph: convert ceph_cap_snap.nref from atomic_t to refcount_t 2017-05-04 09:19:18 +02:00
strings.c ceph: handle CEPH_SESSION_REJECT message 2016-10-03 16:13:50 +02:00
super.c libceph, ceph: always advertise all supported features 2017-05-04 09:19:18 +02:00
super.h ceph: convert ceph_cap_snap.nref from atomic_t to refcount_t 2017-05-04 09:19:18 +02:00
xattr.c ceph: fix non static symbol warning 2016-10-18 12:30:32 +02:00