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

..

9p

fs/9p: Fix error reported by coccicheck

2011-04-15 15:26:14 -05:00

adfs

Fix common misspellings

2011-03-31 11:26:23 -03:00

affs

Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block

2011-03-24 10:16:26 -07:00

afs

Fix common misspellings

2011-03-31 11:26:23 -03:00

autofs4

Fix common misspellings

2011-03-31 11:26:23 -03:00

befs

Fix common misspellings

2011-03-31 11:26:23 -03:00

bfs

Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block

2011-03-24 10:16:26 -07:00

btrfs

Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable

2011-05-15 10:22:10 -07:00

cachefiles

Fix common misspellings

2011-03-31 11:26:23 -03:00

ceph

ceph: fix cap flush race reentrancy

2011-05-24 11:52:12 -07:00

cifs

cifs: fix cifsConvertToUCS() for the mapchars case

2011-05-17 20:54:04 +00:00

coda

codafs: fix build break when CONFIG_PROC_SYSCTL=n

2011-03-25 17:45:16 -07:00

configfs

configfs: Fix race between configfs_readdir() and configfs_d_iput()

2011-05-18 04:08:16 -07:00

cramfs

cramfs: generate unique inode number for better inode cache usage

2011-01-13 08:03:23 -08:00

debugfs

debugfs: Fix filesystem reference counting on debugfs_remove() failure

2011-02-18 08:07:18 -08:00

devpts

fs/devpts/inode.c: correctly check d_alloc_name() return code in devpts_pty_new()

2011-03-22 17:44:17 -07:00

dlm

Fix common misspellings

2011-03-31 11:26:23 -03:00

ecryptfs

eCryptfs: Flush dirty pages in setattr

2011-04-25 18:49:46 -05:00

efs

block: remove per-queue plugging

2011-03-10 08:52:07 +01:00

exofs

Fix common misspellings

2011-03-31 11:26:23 -03:00

exportfs

vfs: Add open by file handle support

2011-03-15 02:21:44 -04:00

ext2

Fix common misspellings

2011-03-31 11:26:23 -03:00

ext3

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6

2011-04-08 07:35:17 -07:00

ext4

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2011-04-11 15:45:47 -07:00

fat

Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block

2011-03-24 10:16:26 -07:00

freevxfs

Fix common misspellings

2011-03-31 11:26:23 -03:00

fscache

FS-Cache: Fix operation handling

2011-01-14 09:23:36 -08:00

fuse

fuse: fix oops in revalidate when called with NULL nameidata

2011-05-10 17:35:58 +02:00

gfs2

add hlist_bl_lock/unlock helpers

2011-04-25 18:14:10 -07:00

hfs

Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block

2011-03-24 10:16:26 -07:00

hfsplus

Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block

2011-03-24 10:16:26 -07:00

hostfs

…

hpfs

HPFS: Remove unused variable

2011-05-09 09:04:24 -07:00

hppfs

…

hugetlbfs

mm: hugetlbfs: change remove_from_page_cache

2011-03-22 17:44:02 -07:00

isofs

Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block

2011-03-24 10:16:26 -07:00

jbd

Fix common misspellings

2011-03-31 11:26:23 -03:00

jbd2

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2011-04-11 15:45:47 -07:00

jffs2

Fix common misspellings

2011-03-31 11:26:23 -03:00

jfs

Fix common misspellings

2011-03-31 11:26:23 -03:00

lockd

NLM: Fix "kernel BUG at fs/lockd/host.c:417!" or ".../host.c:283!"

2011-01-25 15:24:47 -05:00

logfs

logfs: initialize superblock entries earlier

2011-05-03 16:10:25 -07:00

minix

Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block

2011-03-24 10:16:26 -07:00

ncpfs

Fix common misspellings

2011-03-31 11:26:23 -03:00

nfs

NFSv4.1: Ensure that layoutget uses the correct gfp modes

2011-05-11 22:52:13 -04:00

nfs_common

Fix common misspellings

2011-03-31 11:26:23 -03:00

nfsd

Open with O_CREAT flag set fails to open existing files on non writable directories

2011-04-20 11:03:01 -04:00

nilfs2

nilfs2: fix infinite loop in nilfs_palloc_freev function

2011-05-10 22:19:50 +09:00

nls

…

notify

Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6

2011-04-07 11:14:49 -07:00

ntfs

Fix common misspellings

2011-03-31 11:26:23 -03:00

ocfs2

ocfs2/dlm: Target node death during resource migration leads to thread spin

2011-05-13 11:27:30 -07:00

omfs

Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block

2011-03-24 10:16:26 -07:00

openpromfs

…

partitions

Validate size of EFI GUID partition entries.

2011-05-06 07:46:37 -07:00

proc

Don't lock guardpage if the stack is growing up

2011-05-09 16:22:07 -07:00

pstore

Fix common misspellings

2011-03-31 11:26:23 -03:00

qnx4

block: remove per-queue plugging

2011-03-10 08:52:07 +01:00

quota

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6

2011-04-08 07:35:17 -07:00

ramfs

ramfs: fix memleak on no-mmu arch

2011-04-14 16:06:56 -07:00

reiserfs

Fix common misspellings

2011-03-31 11:26:23 -03:00

romfs

…

squashfs

Fix common misspellings

2011-03-31 11:26:23 -03:00

sysfs

kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT

2011-01-20 17:02:05 -08:00

sysv

Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block

2011-03-24 10:16:26 -07:00

ubifs

UBIFS: seek journal heads to the latest bud in replay

2011-05-02 19:23:48 +03:00

udf

Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block

2011-03-24 10:16:26 -07:00

ufs

Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6

2011-04-07 11:14:49 -07:00

xfs

xfs: fix race condition in AIL push trigger

2011-05-09 18:35:04 -05:00

aio.c

Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block

2011-03-24 10:16:26 -07:00

anon_inodes.c

sanitize vfsmount refcounting changes

2011-01-16 13:47:07 -05:00

attr.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

bad_inode.c

…

binfmt_aout.c

…

binfmt_elf_fdpic.c

…

binfmt_elf.c

brk: COMPAT_BRK: fix detection of randomized brk

2011-04-14 16:06:55 -07:00

binfmt_em86.c

…

binfmt_flat.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

binfmt_misc.c

…

binfmt_script.c

…

binfmt_som.c

…

bio-integrity.c

block: Require subsystems to explicitly allocate bio_set integrity mempool

2011-03-17 11:11:05 +01:00

bio.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

block_dev.c

block: rescan partitions on invalidated devices on -ENOMEDIA too

2011-04-29 10:17:26 +02:00

buffer.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2011-03-24 19:01:30 -07:00

char_dev.c

Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block

2011-01-13 10:45:01 -08:00

compat_binfmt_elf.c

…

compat_ioctl.c

…

compat.c

select: remove unused MAX_SELECT_SECONDS

2011-03-21 00:16:08 -04:00

dcache.c

add hlist_bl_lock/unlock helpers

2011-04-25 18:14:10 -07:00

dcookies.c

…

direct-io.c

Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block

2011-03-24 10:16:26 -07:00

drop_caches.c

fs: move i_sb_list out from under inode_lock

2011-03-24 21:16:32 -04:00

eventfd.c

Docbook: add fs/eventfd.c and fix typos in it

2011-02-21 15:07:04 -08:00

eventpoll.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

exec.c

Small typo fix...

2011-03-21 00:16:09 -04:00

fcntl.c

userns: rename is_owner_or_cap to inode_owner_or_capable

2011-03-23 19:47:13 -07:00

fhandle.c

fs/fhandle.c: add <linux/personality.h> for ia64

2011-04-14 16:06:56 -07:00

fifo.c

Filesystem: fifo: Fixed coding style issue.

2011-03-21 00:16:09 -04:00

file_table.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2011-03-16 13:26:17 -07:00

file.c

vfs: avoid large kmalloc()s for the fdtable

2011-04-28 11:28:20 -07:00

filesystems.c

fs: synchronize_rcu when unregister_filesystem success not failure

2011-04-17 10:42:01 -07:00

fs_struct.c

sanitize vfsmount refcounting changes

2011-01-16 13:47:07 -05:00

fs-writeback.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

generic_acl.c

userns: rename is_owner_or_cap to inode_owner_or_capable

2011-03-23 19:47:13 -07:00

inode.c

fs: export empty_aops

2011-04-05 23:51:48 +02:00

internal.h

fs: move i_wb_list out from under inode_lock

2011-03-24 21:17:51 -04:00

ioctl.c

vfs: cleanup do_vfs_ioctl()

2011-03-21 00:16:08 -04:00

ioprio.c

…

Kconfig

Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6

2011-03-16 19:01:29 -07:00

Kconfig.binfmt

…

libfs.c

…

locks.c

Merge branch 'for-2.6.39' of git://linux-nfs.org/~bfields/linux

2011-03-24 08:20:39 -07:00

Makefile

Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6

2011-03-16 19:01:29 -07:00

mbcache.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

mpage.c

fs: make mpage read/write_pages() plug

2011-03-10 08:52:26 +01:00

namei.c

vfs: micro-optimize acl_permission_check()

2011-05-13 11:51:01 -07:00

namespace.c

Revert "vfs: Export file system uuid via /proc/<pid>/mountinfo"

2011-04-12 13:35:56 -07:00

nfsctl.c

open-style analog of vfs_path_lookup()

2011-03-14 09:15:28 -04:00

no-block.c

…

open.c

fs: Use BUG_ON(!mnt) at dentry_open().

2011-03-21 01:10:41 -04:00

pipe.c

Fix broken "pipe: use event aware wakeups" optimization

2011-01-20 16:21:59 -08:00

pnode.c

…

pnode.h

…

posix_acl.c

NFS: Prevent memory allocation failure in nfsacl_encode()

2011-01-25 15:24:47 -05:00

read_write.c

…

read_write.h

…

readdir.c

…

select.c

select: remove unused MAX_SELECT_SECONDS

2011-03-21 00:16:08 -04:00

seq_file.c

…

signalfd.c

…

splice.c

Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block

2011-01-13 10:45:01 -08:00

stack.c

…

stat.c

readlinkat(), fchownat() and fstatat() with empty relative pathnames

2011-03-15 02:21:45 -04:00

statfs.c

clean statfs-like syscalls up

2011-03-14 09:15:28 -04:00

super.c

Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block

2011-03-24 10:16:26 -07:00

sync.c

Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block

2011-03-24 10:16:26 -07:00

timerfd.c

…

utimes.c

userns: rename is_owner_or_cap to inode_owner_or_capable

2011-03-23 19:47:13 -07:00

xattr_acl.c

…

xattr.c

vfs: Pass setxattr(2) flags properly

2011-04-21 07:34:44 -07:00