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Eric Dumazet b3423415fb [PATCH] dcache: avoid RCU for never-hashed dentries ... Some dentries don't need to be globally visible in dentry hashtable. (pipes & sockets) Such dentries dont need to wait for a RCU grace period at delete time. Being able to free them permits a better CPU cache use (hot cache) This patch combined with (dont insert pipe dentries into dentry_hashtable) reduced time of { pipe(p); close(p[0]); close(p[1]);} on my UP machine (1.6 GHz Pentium-M) from 3.23 us to 2.86 us (But this patch does not depend on other patches, only bench results) Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Maneesh Soni <maneesh@in.ibm.com> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Cc: Dipankar Sarma <dipankar@in.ibm.com> Acked-by: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		18 years ago
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9p	[PATCH] Function v9fs_get_idpool returns int, not u32 as called twice in fs/9p/vfs_inode.c	18 years ago
adfs	[PATCH] fs/*: trivial vsnprintf() conversion	18 years ago
affs	[PATCH] fs/*: trivial vsnprintf() conversion	18 years ago
afs	[PATCH] Add include/linux/freezer.h and move definitions from sched.h	18 years ago
autofs	…
autofs4	…
befs	[PATCH] slab: remove kmem_cache_t	18 years ago
bfs	[PATCH] slab: remove kmem_cache_t	18 years ago
cifs	[PATCH] Add include/linux/freezer.h and move definitions from sched.h	18 years ago
coda	[PATCH] slab: remove kmem_cache_t	18 years ago
configfs	[PATCH] slab: remove kmem_cache_t	18 years ago
cramfs	[PATCH] corrupted cramfs filesystems cause kernel oops	18 years ago
debugfs	…
devpts	…
dlm	[PATCH] slab: remove kmem_cache_t	18 years ago
ecryptfs	[PATCH] make ecryptfs_version_str_map[] static	18 years ago
efs	[PATCH] slab: remove kmem_cache_t	18 years ago
exportfs	…
ext2	[PATCH] protect ext2 ioctl modifying append_only immutable etc with i_mutex	18 years ago
ext3	[PATCH] ext3: fix reservation extension	18 years ago
ext4	[PATCH] ext4: fix reservation extension	18 years ago
fat	[PATCH] slab: remove kmem_cache_t	18 years ago
freevxfs	[PATCH] slab: remove kmem_cache_t	18 years ago
fuse	[PATCH] fuse: fix compile without CONFIG_BLOCK	18 years ago
gfs2	[PATCH] slab: remove kmem_cache_t	18 years ago
hfs	[PATCH] slab: remove kmem_cache_t	18 years ago
hfsplus	[PATCH] slab: remove kmem_cache_t	18 years ago
hostfs	…
hpfs	[PATCH] hpfs: fix printk format warnings	18 years ago
hppfs	…
hugetlbfs	[PATCH] slab: remove kmem_cache_t	18 years ago
isofs	[PATCH] slab: remove kmem_cache_t	18 years ago
jbd	[PATCH] make fs/jbd/transaction.c:__journal_temp_unlink_buffer() static	18 years ago
jbd2	[PATCH] make fs/jbd2/transaction.c:__kbd2_journal_temp_unlink_buffer() static	18 years ago
jffs	[PATCH] Add include/linux/freezer.h and move definitions from sched.h	18 years ago
jffs2	[PATCH] Add include/linux/freezer.h and move definitions from sched.h	18 years ago
jfs	[PATCH] fs/*: trivial vsnprintf() conversion	18 years ago
lockd	[PATCH] fs/lockd/host.c: make 2 functions static	18 years ago
minix	[PATCH] slab: remove kmem_cache_t	18 years ago
msdos	…
ncpfs	[PATCH] slab: remove kmem_cache_t	18 years ago
nfs	[PATCH] slab: remove kmem_cache_t	18 years ago
nfs_common	…
nfsd	[PATCH] slab: remove kmem_cache_t	18 years ago
nls	…
ntfs	…
ocfs2	[PATCH] fs/*: trivial vsnprintf() conversion	18 years ago
openpromfs	[PATCH] slab: remove kmem_cache_t	18 years ago
partitions	[PATCH] Fix check_partition routines	18 years ago
proc	[PATCH] make fs/proc/base.c:proc_pid_instantiate() static	18 years ago
qnx4	[PATCH] slab: remove kmem_cache_t	18 years ago
ramfs	…
reiserfs	[PATCH] reiserfs: add missing D-cache flushing	18 years ago
romfs	[PATCH] slab: remove kmem_cache_t	18 years ago
smbfs	[PATCH] slab: remove kmem_cache_t	18 years ago
sysfs	[PATCH] slab: remove kmem_cache_t	18 years ago
sysv	[PATCH] slab: remove kmem_cache_t	18 years ago
udf	[PATCH] fs/*: trivial vsnprintf() conversion	18 years ago
ufs	[PATCH] fs/*: trivial vsnprintf() conversion	18 years ago
vfat	…
xfs	[PATCH] Use freezeable workqueues in XFS	18 years ago
Kconfig	…
Kconfig.binfmt	…
Makefile	…
aio.c	[PATCH] slab: remove kmem_cache_t	18 years ago
attr.c	…
bad_inode.c	…
binfmt_aout.c	…
binfmt_elf.c	[PATCH] elf: Always define elf_addr_t in linux/elf.h	18 years ago
binfmt_elf_fdpic.c	[PATCH] elf: Always define elf_addr_t in linux/elf.h	18 years ago
binfmt_em86.c	…
binfmt_flat.c	…
binfmt_misc.c	…
binfmt_script.c	…
binfmt_som.c	…
bio.c	[PATCH] slab: remove kmem_cache_t	18 years ago
block_dev.c	[PATCH] slab: remove kmem_cache_t	18 years ago
buffer.c	[PATCH] hotplug CPU: clean up hotcpu_notifier() use	18 years ago
char_dev.c	…
compat.c	[PATCH] compat: fix uaccess handling	18 years ago
compat_ioctl.c	[PATCH] compat: fix uaccess handling	18 years ago
dcache.c	[PATCH] dcache: avoid RCU for never-hashed dentries	18 years ago
dcookies.c	[PATCH] slab: remove kmem_cache_t	18 years ago
direct-io.c	…
dnotify.c	[PATCH] slab: remove kmem_cache_t	18 years ago
dquot.c	[PATCH] slab: remove kmem_cache_t	18 years ago
drop_caches.c	…
eventpoll.c	[PATCH] slab: remove kmem_cache_t	18 years ago
exec.c	…
fcntl.c	[PATCH] slab: remove kmem_cache_t	18 years ago
fifo.c	…
file.c	[PATCH] file: kill unnecessary timer in fdtable_defer	18 years ago
file_table.c	…
filesystems.c	…
fs-writeback.c	…
generic_acl.c	…
inode.c	[PATCH] slab: remove kmem_cache_t	18 years ago
inotify.c	…
inotify_user.c	[PATCH] slab: remove kmem_cache_t	18 years ago
internal.h	…
ioctl.c	…
ioprio.c	…
libfs.c	…
locks.c	[PATCH] slab: remove kmem_cache_t	18 years ago
mbcache.c	[PATCH] slab: remove kmem_cache_t	18 years ago
mpage.c	…
namei.c	[PATCH] VFS: extra check inside dentry_unhash()	18 years ago
namespace.c	[PATCH] slab: remove kmem_cache_t	18 years ago
nfsctl.c	…
no-block.c	…
open.c	…
pipe.c	[PATCH] don't insert pipe dentries into dentry_hashtable.	18 years ago
pnode.c	…
pnode.h	…
posix_acl.c	…
quota.c	…
quota_v1.c	…
quota_v2.c	…
read_write.c	…
read_write.h	…
readdir.c	…
select.c	…
seq_file.c	…
splice.c	…
stat.c	[PATCH] vfs_getattr(): remove dead code	18 years ago
super.c	…
sync.c	…
utimes.c	…
xattr.c	…
xattr_acl.c	…