Eric Dumazet 989a297920 fasync: RCU and fine grained locking ... kill_fasync() uses a central rwlock, candidate for RCU conversion, to avoid cache line ping pongs on SMP. fasync_remove_entry() and fasync_add_entry() can disable IRQS on a short section instead during whole list scan. Use a spinlock per fasync_struct to synchronize kill_fasync_rcu() and fasync_{remove|add}_entry(). This spinlock is IRQ safe, so sock_fasync() doesnt need its own implementation and can use fasync_helper(), to reduce code size and complexity. We can remove __kill_fasync() direct use in net/socket.c, and rename it to kill_fasync_rcu(). Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2010-04-21 16:19:29 -07:00
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9p	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs	2010-04-05 13:42:54 -07:00
adfs	…
affs	…
afs	…
autofs	…
autofs4	…
befs	…
bfs	…
btrfs	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable	2010-04-12 18:37:04 -07:00
cachefiles	…
ceph	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client	2010-04-14 18:45:31 -07:00
cifs	Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6	2010-04-08 11:58:14 -07:00
coda	…
configfs	…
cramfs	…
debugfs	…
devpts	…
dlm	…
ecryptfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6	2010-04-19 14:20:32 -07:00
efs	…
exofs	…
exportfs	…
ext2	ext2: symlink must be handled via filesystem specific operation	2010-04-12 21:11:25 +02:00
ext3	ext3: symlink must be handled via filesystem specific operation	2010-04-12 21:11:39 +02:00
ext4	…
fat	Merge branch 'master' into export-slabh	2010-04-05 11:37:28 +09:00
freevxfs	…
fscache	fs-cache: order the debugfs stats correctly	2010-04-07 08:38:05 -07:00
fuse	…
gfs2	…
hfs	…
hfsplus	…
hostfs	…
hpfs	…
hppfs	…
hugetlbfs	…
isofs	…
jbd	…
jbd2	…
jffs2	…
jfs	…
lockd	…
logfs	Merge branch 'master' into export-slabh	2010-04-05 11:37:28 +09:00
minix	…
ncpfs	…
nfs	NFSv4: fix delegated locking	2010-04-12 07:55:15 -04:00
nfs_common	…
nfsd	…
nilfs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2	2010-04-12 18:34:25 -07:00
nls	…
notify	…
ntfs	…
ocfs2	…
omfs	…
openpromfs	…
partitions	…
proc	pagemap: fix pfn calculation for hugepage	2010-04-07 08:38:04 -07:00
qnx4	…
quota	quota: Convert __DQUOT_PARANOIA symbol to standard config option	2010-04-20 18:25:25 +02:00
ramfs	…
reiserfs	Merge branch 'master' into export-slabh	2010-04-05 11:37:28 +09:00
romfs	…
smbfs	…
squashfs	…
sysfs	…
sysv	…
ubifs	…
udf	udf: add speciffic ->setattr callback	2010-04-08 15:35:20 +02:00
ufs	…
xfs	xfs: don't warn on EAGAIN in inode reclaim	2010-04-16 13:51:44 -05:00
Kconfig	…
Kconfig.binfmt	…
Makefile	…
aio.c	…
anon_inodes.c	…
attr.c	…
bad_inode.c	…
binfmt_aout.c	…
binfmt_elf.c	…
binfmt_elf_fdpic.c	…
binfmt_em86.c	…
binfmt_flat.c	…
binfmt_misc.c	…
binfmt_script.c	…
binfmt_som.c	…
bio-integrity.c	…
bio.c	…
block_dev.c	vfs: rename block_fsync() to blkdev_fsync()	2010-04-07 08:38:04 -07:00
buffer.c	…
char_dev.c	…
compat.c	…
compat_binfmt_elf.c	…
compat_ioctl.c	…
dcache.c	…
dcookies.c	…
direct-io.c	…
drop_caches.c	…
eventfd.c	…
eventpoll.c	…
exec.c	…
fcntl.c	fasync: RCU and fine grained locking	2010-04-21 16:19:29 -07:00
fifo.c	…
file.c	…
file_table.c	…
filesystems.c	…
fs-writeback.c	Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block	2010-04-09 11:50:29 -07:00
fs_struct.c	…
generic_acl.c	…
inode.c	…
internal.h	…
ioctl.c	…
ioprio.c	…
libfs.c	…
locks.c	…
mbcache.c	…
mpage.c	…
namei.c	…
namespace.c	…
nfsctl.c	…
no-block.c	…
open.c	…
pipe.c	…
pnode.c	…
pnode.h	…
posix_acl.c	…
read_write.c	…
read_write.h	…
readdir.c	…
select.c	…
seq_file.c	…
signalfd.c	…
splice.c	…
stack.c	…
stat.c	…
super.c	…
sync.c	…
timerfd.c	…
utimes.c	…
xattr.c	…
xattr_acl.c	…