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kernel-ark/fs
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Oleg Nesterov aa1757f90b [PATCH] convert sighand_cache to use SLAB_DESTROY_BY_RCU 
This patch borrows a clever Hugh's 'struct anon_vma' trick.

Without tasklist_lock held we can't trust task->sighand until we locked it
and re-checked that it is still the same.

But this means we don't need to defer 'kmem_cache_free(sighand)'.  We can
return the memory to slab immediately, all we need is to be sure that
sighand->siglock can't dissapear inside rcu protected section.

To do so we need to initialize ->siglock inside ctor function,
SLAB_DESTROY_BY_RCU does the rest.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-28 18:36:42 -08:00
..
9p [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
adfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
affs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
afs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
autofs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
autofs4 [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
befs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
bfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
cifs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
coda [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
configfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
cramfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
debugfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
devfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
devpts
efs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
exportfs
ext2 [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
ext3 [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
fat [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
freevxfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
fuse [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
hfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
hfsplus [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
hostfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
hpfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
hppfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
hugetlbfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
isofs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
jbd
jffs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
jffs2 [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
jfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
lockd
minix [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
msdos
ncpfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
nfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
nfs_common
nfsd [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
nls
ntfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
ocfs2 [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
openpromfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
partitions [PATCH] dm-md-dependency-tree-in-sysfs-holders-slaves-subdirectory-tidy 2006-03-27 08:44:59 -08:00
proc [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
qnx4 [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
ramfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
reiserfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
romfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
smbfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
sysfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
sysv [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
udf [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
ufs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
vfat
xfs [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
aio.c
attr.c
bad_inode.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
binfmt_aout.c
binfmt_elf_fdpic.c
binfmt_elf.c
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
binfmt_script.c
binfmt_som.c
bio.c
block_dev.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
buffer.c [PATCH] for_each_online_pgdat: renaming for_each_pgdat 2006-03-27 08:44:48 -08:00
char_dev.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
compat_ioctl.c
compat.c [PATCH] Fold select_bits_alloc/free into caller code. 2006-03-28 09:16:04 -08:00
dcache.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2006-03-26 09:41:18 -08:00
dcookies.c
direct-io.c
dnotify.c
dquot.c
drop_caches.c
eventpoll.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
exec.c [PATCH] convert sighand_cache to use SLAB_DESTROY_BY_RCU 2006-03-28 18:36:42 -08:00
fcntl.c
fifo.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
file_table.c
file.c [PATCH] for_each_possible_cpu: fixes for generic part 2006-03-28 09:16:05 -08:00
filesystems.c
fs-writeback.c
inode.c [PATCH] mark f_ops const in the inode 2006-03-28 09:16:05 -08:00
inotify.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
ioctl.c
ioprio.c
Kconfig
Kconfig.binfmt
libfs.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
locks.c
Makefile
mbcache.c [PATCH] Typo fixes 2006-03-28 09:16:08 -08:00
mpage.c
namei.c [PATCH] autofs4: nameidata needs to be up to date for follow_link 2006-03-27 08:44:40 -08:00
namespace.c [PATCH] autofs4: change may_umount* functions to boolean 2006-03-27 08:44:40 -08:00
nfsctl.c
open.c
pipe.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
pnode.c
pnode.h
posix_acl.c
quota_v1.c
quota_v2.c
quota.c
read_write.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
readdir.c
select.c [PATCH] mark f_ops const in the inode 2006-03-28 09:16:05 -08:00
seq_file.c
stat.c
super.c
xattr_acl.c
xattr.c