Ilya Dryomov 29a0cfbf91 libceph: don't allow bidirectional swap of pg-upmap-items ... This reverts most of commit f53b7665c8 ("libceph: upmap semantic changes"). We need to prevent duplicates in the final result. For example, we can currently take [1,2,3] and apply [(1,2)] and get [2,2,3] or [1,2,3] and apply [(3,2)] and get [1,2,2] The rest of the system is not prepared to handle duplicates in the result set like this. The reverted piece was intended to allow [1,2,3] and [(1,2),(2,1)] to get [2,1,3] to reorder primaries. First, this bidirectional swap is hard to implement in a way that also prevents dups. For example, [1,2,3] and [(1,4),(2,3),(3,4)] would give [4,3,4] but would we just drop the last step we'd have [4,3,3] which is also invalid, etc. Simpler to just not handle bidirectional swaps. In practice, they are not needed: if you just want to choose a different primary then use primary_affinity, or pg_upmap (not pg_upmap_items). Cc: stable@vger.kernel.org # 4.13 Link: http://tracker.ceph.com/issues/21410 Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Sage Weil <sage@redhat.com>		2017-09-19 20:34:29 +02:00
..
crush	crush: assume weight_set != null imples weight_set_size > 0	2017-08-01 16:46:44 +02:00
Kconfig	libceph: select CRYPTO_CBC in addition to CRYPTO_AES	2014-10-14 21:03:20 +04:00
Makefile	libceph: support for advisory locking on RADOS objects	2016-08-24 23:49:15 +02:00
armor.c	libceph: Fix base64-decoding when input ends in newline.	2011-03-15 09:14:02 -07:00
auth.c	libceph: drop len argument of *verify_authorizer_reply()	2016-12-12 23:09:21 +01:00
auth_none.c	libceph: rename ceph_entity_name_encode() -> ceph_auth_entity_name_encode()	2016-08-24 23:49:15 +02:00
auth_none.h	libceph: make authorizer destruction independent of ceph_auth_client	2016-04-25 20:54:13 +02:00
auth_x.c	libceph: fix error handling in process_one_ticket()	2017-05-23 20:32:28 +02:00
auth_x.h	libceph: rename and align ceph_x_authorizer::reply_buf	2016-12-12 23:09:19 +01:00
auth_x_protocol.h	…
buffer.c	libceph: nuke ceph_kvfree()	2014-12-17 20:09:50 +03:00
ceph_common.c	Add wait_for_random_bytes() and get_random_*_wait() functions so that	2017-07-15 12:44:02 -07:00
ceph_fs.c	libceph: fix legacy layout decode with pool 0	2016-11-10 20:13:08 +01:00
ceph_hash.c	net: cleanup unsigned to unsigned int	2012-04-15 12:44:40 -04:00
ceph_strings.c	rbd: support for exclusive-lock feature	2016-08-24 23:49:16 +02:00
cls_lock_client.c	rbd: support updating the lock cookie without releasing the lock	2017-05-04 09:19:23 +02:00
crypto.c	sched/headers: Prepare to move the memalloc_noio_*() APIs to <linux/sched/mm.h>	2017-03-02 08:42:33 +01:00
crypto.h	libceph: stop allocating a new cipher on every crypto request	2016-12-12 23:09:20 +01:00
debugfs.c	libceph: osd_state is 32 bits wide in luminous	2017-07-07 17:25:19 +02:00
messenger.c	libceph: don't call ->reencode_message() more than once per message	2017-08-01 16:46:43 +02:00
mon_client.c	ceph: more accurate statfs	2017-09-06 19:56:49 +02:00
msgpool.c	libceph: fix some missing includes	2016-07-28 02:55:35 +02:00
osd_client.c	ceph: nuke startsync op	2017-09-06 19:56:43 +02:00
osdmap.c	libceph: don't allow bidirectional swap of pg-upmap-items	2017-09-19 20:34:29 +02:00
pagelist.c	libceph: convert ceph_pagelist.refcnt from atomic_t to refcount_t	2017-05-04 09:19:19 +02:00
pagevec.c	mm: replace get_user_pages_unlocked() write/force parameters with gup_flags	2016-10-18 14:13:37 -07:00
snapshot.c	libceph: convert ceph_snap_context.nref from atomic_t to refcount_t	2017-05-04 09:19:18 +02:00
string_table.c	libceph: using kfree_rcu() to simplify the code	2016-08-08 21:41:42 +02:00