Sage Weil db3540522e ceph: fix cap flush race reentrancy ... In e9964c10 we change cap flushing to do a delicate dance because some inodes on the cap_dirty list could be in a migrating state (got EXPORT but not IMPORT) in which we couldn't actually flush and move from dirty->flushing, breaking the while (!empty) { process first } loop structure. It worked for a single sync thread, but was not reentrant and triggered infinite loops when multiple syncers came along. Instead, move inodes with dirty to a separate cap_dirty_migrating list when in the limbo export-but-no-import state, allowing us to go back to the simple loop structure (which was reentrant). This is cleaner and more robust. Audited the cap_dirty users and this looks fine: list_empty(&ci->i_dirty_item) is still a reliable indicator of whether we have dirty caps (which list we're on is irrelevant) and list_del_init() calls still do the right thing. Signed-off-by: Sage Weil <sage@newdream.net>		2011-05-24 11:52:12 -07:00
..
addr.c	ceph: check return value for start_request in writepages	2011-05-19 11:25:05 -07:00
caps.c	ceph: fix cap flush race reentrancy	2011-05-24 11:52:12 -07:00
ceph_frag.c
debugfs.c
dir.c	ceph: fix broken comparison in readdir loop	2011-05-19 11:25:04 -07:00
export.c	ceph: avoid inode lookup on nfs fh reconnect	2011-05-24 11:52:06 -07:00
file.c	ceph: do not call __mark_dirty_inode under i_lock	2011-05-04 12:56:45 -07:00
inode.c	ceph: do not use i_wrbuffer_ref as refcount for Fb cap	2011-05-11 10:44:48 -07:00
ioctl.c
ioctl.h
Kconfig
locks.c
Makefile
mds_client.c	ceph: fix cap flush race reentrancy	2011-05-24 11:52:12 -07:00
mds_client.h	ceph: fix cap flush race reentrancy	2011-05-24 11:52:12 -07:00
mdsmap.c
snap.c	ceph: fix list_add in ceph_put_snap_realm	2011-05-11 10:44:36 -07:00
strings.c
super.c	ceph: Move secret key parsing earlier.	2011-03-29 12:11:16 -07:00
super.h	ceph: do not use i_wrbuffer_ref as refcount for Fb cap	2011-05-11 10:44:48 -07:00
xattr.c	ceph: do not call __mark_dirty_inode under i_lock	2011-05-04 12:56:45 -07:00