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cdc2ce056a
linux/fs/ceph
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Sage Weil cdc2ce056a ceph: fix session locking in handle_caps, ceph_check_caps 
Passing a session pointer to ceph_check_caps() used to mean it would leave
the session mutex locked.  That wasn't always possible if it wasn't passed
CHECK_CAPS_AUTHONLY.   If could unlock the passed session and lock a
differet session mutex, which was clearly wrong, and also emitted a
warning when it a racing CPU retook it and we did an unlock from the wrong
context.

This was only a problem when there was more than one MDS.

First, make ceph_check_caps unconditionally drop the session mutex, so that
it is free to lock other sessions as needed.  Then adjust the one caller
that passes in a session (handle_cap_grant) accordingly.

Signed-off-by: Sage Weil <sage@newdream.net>
2010-03-23 07:46:53 -07:00
..
crush ceph: whitespace cleanup 2009-12-03 14:59:44 -08:00
addr.c ceph: move dereference after NULL test 2010-02-23 14:26:34 -08:00
armor.c ceph: aes crypto and base64 encode/decode helpers 2010-02-10 15:04:46 -08:00
auth_none.c ceph: add struct version to auth encoding 2010-02-10 15:04:48 -08:00
auth_none.h ceph: negotiate authentication protocol; implement AUTH_NONE protocol 2009-11-18 16:19:57 -08:00
auth_x_protocol.h ceph: add support for auth_x authentication protocol 2010-02-11 11:48:45 -08:00
auth_x.c ceph: clean up service ticket decoding 2010-03-23 07:46:47 -07:00
auth_x.h ceph: add support for auth_x authentication protocol 2010-02-11 11:48:45 -08:00
auth.c ceph: add support for auth_x authentication protocol 2010-02-11 11:48:45 -08:00
auth.h ceph: allow renewal of auth credentials 2010-02-10 15:04:47 -08:00
buffer.c ceph: buffer decoding helpers 2010-02-10 15:04:39 -08:00
buffer.h ceph: buffer decoding helpers 2010-02-10 15:04:39 -08:00
caps.c ceph: fix session locking in handle_caps, ceph_check_caps 2010-03-23 07:46:53 -07:00
ceph_debug.h ceph: client types 2009-10-06 11:31:07 -07:00
ceph_frag.c ceph: client types 2009-10-06 11:31:07 -07:00
ceph_frag.h ceph: client types 2009-10-06 11:31:07 -07:00
ceph_fs.c ceph: make object hash a pg_pool property 2009-11-06 21:55:25 -08:00
ceph_fs.h ceph: v0.19 release 2010-02-17 13:56:07 -08:00
ceph_hash.c ceph: whitespace cleanup 2009-12-03 14:59:44 -08:00
ceph_hash.h ceph: make object hash a pg_pool property 2009-11-06 21:55:25 -08:00
ceph_strings.c ceph: negotiate authentication protocol; implement AUTH_NONE protocol 2009-11-18 16:19:57 -08:00
crypto.c ceph: aes crypto and base64 encode/decode helpers 2010-02-10 15:04:46 -08:00
crypto.h ceph: aes crypto and base64 encode/decode helpers 2010-02-10 15:04:46 -08:00
debugfs.c ceph: use rbtree for pg pools; decode new osdmap format 2010-02-17 10:02:49 -08:00
decode.h ceph: buffer decoding helpers 2010-02-10 15:04:39 -08:00
dir.c ceph: add feature bits to connection handshake (protocol change) 2009-12-23 09:30:21 -08:00
export.c ceph: nfs re-export support 2009-10-06 11:31:13 -07:00
file.c ceph: return EBADF if waiting for caps on closed file 2010-03-01 15:28:00 -08:00
inode.c ceph: fix inode removal from snap realm when racing with migration 2010-03-20 21:33:08 -07:00
ioctl.c ceph: allow preferred osd to be get/set via layout ioctl 2009-12-03 14:59:48 -08:00
ioctl.h ceph: allow preferred osd to be get/set via layout ioctl 2009-12-03 14:59:48 -08:00
Kconfig ceph: aes crypto and base64 encode/decode helpers 2010-02-10 15:04:46 -08:00
Makefile ceph: add support for auth_x authentication protocol 2010-02-11 11:48:45 -08:00
mds_client.c ceph: remove bogus mds forward warning 2010-02-26 10:02:03 -08:00
mds_client.h ceph: fix iterate_caps removal race 2010-02-17 10:02:47 -08:00
mdsmap.c ceph: hex dump corrupt server data to KERN_DEBUG 2009-12-21 16:39:52 -08:00
mdsmap.h ceph: decode updated mdsmap format 2009-11-20 14:24:33 -08:00
messenger.c ceph: fix authenticator timeout 2010-03-20 21:33:09 -07:00
messenger.h ceph: reset bits on connection close 2010-03-01 15:19:51 -08:00
mon_client.c ceph: fix up unexpected message handling 2010-02-23 14:26:29 -08:00
mon_client.h ceph: use rbtree for mon statfs requests 2010-02-16 22:01:10 -08:00
msgpool.c ceph: reset front len on return to msgpool; BUG on mismatched front iov 2010-03-01 15:25:00 -08:00
msgpool.h ceph: warn on allocation from msgpool with larger front_len 2009-10-15 18:14:43 -07:00
msgr.h ceph: include type in ceph_entity_addr, filepath 2010-01-29 12:41:09 -08:00
osd_client.c ceph: fix null pointer deref of r_osd in debug output 2010-03-23 07:46:51 -07:00
osd_client.h ceph: reset osd after relevant messages timed out 2010-03-04 11:26:35 -08:00
osdmap.c ceph: fix osdmap decoding when pools include (removed) snaps 2010-03-01 15:28:00 -08:00
osdmap.h ceph: use rbtree for pg pools; decode new osdmap format 2010-02-17 10:02:49 -08:00
pagelist.c ceph: support ceph_pagelist for message payload 2009-12-23 12:12:31 -08:00
pagelist.h ceph: support ceph_pagelist for message payload 2009-12-23 12:12:31 -08:00
rados.h ceph: use rbtree for pg pools; decode new osdmap format 2010-02-17 10:02:49 -08:00
README ceph: make object hash a pg_pool property 2009-11-06 21:55:25 -08:00
snap.c ceph: add missing locking to protect i_snap_realm_item during split 2010-03-20 21:33:07 -07:00
super.c ceph: reset osd after relevant messages timed out 2010-03-04 11:26:35 -08:00
super.h ceph: update for write_inode API change 2010-03-05 14:49:41 -08:00
types.h ceph: make object hash a pg_pool property 2009-11-06 21:55:25 -08:00
xattr.c ceph: simplify ceph_buffer interface 2009-12-07 12:17:17 -08:00

README 

#
# The following files are shared by (and manually synchronized
# between) the Ceph userland and kernel client.
#
# userland                  kernel
src/include/ceph_fs.h	    fs/ceph/ceph_fs.h
src/include/ceph_fs.cc	    fs/ceph/ceph_fs.c
src/include/msgr.h	    fs/ceph/msgr.h
src/include/rados.h	    fs/ceph/rados.h
src/include/ceph_strings.cc fs/ceph/ceph_strings.c
src/include/ceph_frag.h	    fs/ceph/ceph_frag.h
src/include/ceph_frag.cc    fs/ceph/ceph_frag.c
src/include/ceph_hash.h	    fs/ceph/ceph_hash.h
src/include/ceph_hash.cc    fs/ceph/ceph_hash.c
src/crush/crush.c	    fs/ceph/crush/crush.c
src/crush/crush.h	    fs/ceph/crush/crush.h
src/crush/mapper.c	    fs/ceph/crush/mapper.c
src/crush/mapper.h	    fs/ceph/crush/mapper.h
src/crush/hash.h	    fs/ceph/crush/hash.h
src/crush/hash.c	    fs/ceph/crush/hash.c