Eric Dumazet c23fbb6bcb VFS: delay the dentry name generation on sockets and pipes ... 1) Introduces a new method in 'struct dentry_operations'. This method called d_dname() might be called from d_path() to build a pathname for special filesystems. It is called without locks. Future patches (if we succeed in having one common dentry for all pipes/sockets) may need to change prototype of this method, but we now use : char *d_dname(struct dentry *dentry, char *buffer, int buflen); 2) Adds a dynamic_dname() helper function that eases d_dname() implementations 3) Defines d_dname method for sockets : No more sprintf() at socket creation. This is delayed up to the moment someone does an access to /proc/pid/fd/... 4) Defines d_dname method for pipes : No more sprintf() at pipe creation. This is delayed up to the moment someone does an access to /proc/pid/fd/... A benchmark consisting of 1.000.000 calls to pipe()/close()/close() gives a *nice* speedup on my Pentium(M) 1.6 Ghz : 3.090 s instead of 3.450 s Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Acked-by: Christoph Hellwig <hch@infradead.org> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-05-08 11:15:03 -07:00
..
9p	v9fs: don't use primary fid when removing file	2007-04-24 08:23:08 -07:00
adfs	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
affs	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
afs	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
autofs	[PATCH] Mark struct super_operations const	2007-02-12 09:48:47 -08:00
autofs4	[PATCH] autofs4: fix race in unhashed dentry code	2007-04-12 15:31:42 -07:00
befs	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
bfs	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
cifs	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
coda	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
configfs	remove "struct subsystem" as it is no longer needed	2007-05-02 18:57:59 -07:00
cramfs	mm: make read_cache_page synchronous	2007-05-07 12:12:51 -07:00
debugfs	remove "struct subsystem" as it is no longer needed	2007-05-02 18:57:59 -07:00
devpts	devpts: add fsnotify create event	2007-05-08 11:14:59 -07:00
dlm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw	2007-05-07 12:26:27 -07:00
ecryptfs	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
efs	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
exportfs
ext2	ext2/3/4: fix file date underflow on ext2 3 filesystems on 64 bit systems	2007-05-08 11:14:58 -07:00
ext3	ext3: dirindex error pointer issues	2007-05-08 11:15:01 -07:00
ext4	ext3: dirindex error pointer issues	2007-05-08 11:15:01 -07:00
fat	is_power_of_2 in fat	2007-05-08 11:14:59 -07:00
freevxfs	freevxfs: possible null pointer dereference fix	2007-05-08 11:14:59 -07:00
fuse	add filesystem subtype support	2007-05-08 11:15:01 -07:00
gfs2	Factor outstanding I/O error handling	2007-05-08 11:14:57 -07:00
hfs	is_power_of_2 in fs/hfs	2007-05-08 11:14:59 -07:00
hfsplus	is_power_of_2 in fs/hfs	2007-05-08 11:14:59 -07:00
hostfs	uml: hostfs style fixes	2007-05-08 11:14:57 -07:00
hpfs	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
hppfs	[PATCH] Mark struct super_operations const	2007-02-12 09:48:47 -08:00
hugetlbfs	hugetlbfs: add NULL check in hugetlb_zero_setup()	2007-05-07 12:12:57 -07:00
isofs	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
jbd	[PATCH] jbd: wait for already submitted t_sync_datalist buffer to complete	2006-12-22 08:55:51 -08:00
jbd2	[PATCH] jbd2: wait for already submitted t_sync_datalist buffer to complete	2006-12-07 08:39:42 -08:00
jffs2	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
jfs	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
lockd	Merge branch 'server-cluster-locking-api' of git://linux-nfs.org/~bfields/linux	2007-05-07 12:34:24 -07:00
minix	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
msdos	[PATCH] mark struct inode_operations const 2	2007-02-12 09:48:46 -08:00
ncpfs	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
nfs	Merge branch 'server-cluster-locking-api' of git://linux-nfs.org/~bfields/linux	2007-05-07 12:34:24 -07:00
nfs_common	[PATCH] nfs_common endianness annotations	2006-10-20 10:26:41 -07:00
nfsd	Merge branch 'server-cluster-locking-api' of git://linux-nfs.org/~bfields/linux	2007-05-07 12:34:24 -07:00
nls	[PATCH] fs: make nls_cp936.c handle some U00XY characters and U20AC correctly	2006-12-07 08:39:46 -08:00
ntfs	mm: move common segment checks to separate helper function	2007-05-08 11:14:57 -07:00
ocfs2	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
openpromfs	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
partitions	mm: optimize acorn partition truncate	2007-05-07 12:12:55 -07:00
proc	add file position info to proc	2007-05-08 11:15:03 -07:00
qnx4	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
ramfs	[PATCH] Mark struct super_operations const	2007-02-12 09:48:47 -08:00
reiserfs	reiserfs: correct misspelled "REISERFS_PROC_INFO" to "CONFIG_REISERFS_PROC_INFO"	2007-05-08 11:15:00 -07:00
romfs	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
smbfs	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
sysfs	remove "struct subsystem" as it is no longer needed	2007-05-02 18:57:59 -07:00
sysv	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
udf	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
ufs	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
vfat	[PATCH] mark struct inode_operations const 3	2007-02-12 09:48:46 -08:00
xfs	mm: move common segment checks to separate helper function	2007-05-08 11:14:57 -07:00
aio.c	KMEM_CACHE(): simplify slab cache creation	2007-05-07 12:12:55 -07:00
attr.c
bad_inode.c	[PATCH] mark struct inode_operations const 1	2007-02-12 09:48:46 -08:00
binfmt_aout.c	[PATCH] VFS: change struct file to use struct path	2006-12-08 08:28:41 -08:00
binfmt_elf.c	[PATCH] fix page leak during core dump	2007-04-02 10:06:08 -07:00
binfmt_elf_fdpic.c	[PATCH] fix page leak during core dump	2007-04-02 10:06:08 -07:00
binfmt_em86.c
binfmt_flat.c	[PATCH] uclinux: correctly remap bin_fmtflat exe allocated mem regions	2007-02-09 10:45:33 -08:00
binfmt_misc.c	[PATCH] Mark struct super_operations const	2007-02-12 09:48:47 -08:00
binfmt_script.c
binfmt_som.c
bio.c	KMEM_CACHE(): simplify slab cache creation	2007-05-07 12:12:55 -07:00
block_dev.c	is_power_of_2 in fs/block_dev.c	2007-05-08 11:14:59 -07:00
buffer.c	block_write_full_page(): report ENOSPC	2007-05-08 11:14:57 -07:00
char_dev.c	[PATCH] remove protection of LANANA-reserved majors	2007-04-04 21:12:47 -07:00
compat.c	[PATCH] x86-64: Print type and size correctly for unknown compat ioctls	2007-05-02 19:27:21 +02:00
compat_ioctl.c	[PATCH] x86-64: Shut up warnings for vfat compat ioctls on other file systems	2007-05-02 19:27:21 +02:00
dcache.c	VFS: delay the dentry name generation on sockets and pipes	2007-05-08 11:15:03 -07:00
dcookies.c	[PATCH] slab: remove kmem_cache_t	2006-12-07 08:39:25 -08:00
direct-io.c	[PATCH] dio: lock refcount operations	2006-12-10 09:57:21 -08:00
dnotify.c	[PATCH] VFS: change struct file to use struct path	2006-12-08 08:28:41 -08:00
dquot.c	mm: remove destroy_dirty_buffers from invalidate_bdev()	2007-05-07 12:12:55 -07:00
drop_caches.c	[PATCH] remove invalidate_inode_pages()	2007-02-11 10:51:31 -08:00
eventpoll.c	epoll: optimizations and cleanups	2007-05-08 11:15:01 -07:00
exec.c	exec: fix remove_arg_zero	2007-05-08 11:15:00 -07:00
fcntl.c	[PATCH] fdtable: Make fdarray and fdsets equal in size	2006-12-10 09:57:22 -08:00
fifo.c
file.c	[PATCH] fdtable: Provide free_fdtable() wrapper	2006-12-22 08:55:50 -08:00
file_table.c	[PATCH] VFS: change struct file to use struct path	2006-12-08 08:28:41 -08:00
filesystems.c	add filesystem subtype support	2007-05-08 11:15:01 -07:00
fs-writeback.c	Write back inode data pages even when the inode itself is locked	2007-01-26 12:53:20 -08:00
generic_acl.c
inode.c	vfs: remove superflous sb == NULL checks	2007-05-08 11:15:02 -07:00
inotify.c	[PATCH] severing fs.h, radix-tree.h -> sched.h	2006-12-04 02:00:24 -05:00
inotify_user.c	[PATCH] inotify: read return val fix	2007-02-12 09:48:28 -08:00
internal.h
ioctl.c	vfs: remove superflous sb == NULL checks	2007-05-08 11:15:02 -07:00
ioprio.c	[PATCH] pid: replace do/while_each_task_pid with do/while_each_pid_task	2007-02-12 09:48:32 -08:00
Kconfig	Merge git://git.linux-nfs.org/pub/linux/nfs-2.6	2007-05-04 19:55:11 -07:00
Kconfig.binfmt	blackfin architecture	2007-05-07 12:12:58 -07:00
libfs.c	[PATCH] shmem and simple const super_operations	2007-03-05 07:57:51 -08:00
locks.c	Merge branch 'server-cluster-locking-api' of git://linux-nfs.org/~bfields/linux	2007-05-07 12:34:24 -07:00
Makefile	Remove JFFS (version 1), as scheduled.	2007-02-17 16:10:59 -05:00
mbcache.c	[PATCH] slab: remove kmem_cache_t	2006-12-07 08:39:25 -08:00
mpage.c	Factor outstanding I/O error handling	2007-05-08 11:14:57 -07:00
namei.c	namei.c: remove utterly outdated comment	2007-05-08 11:15:02 -07:00
namespace.c	add filesystem subtype support	2007-05-08 11:15:01 -07:00
nfsctl.c
no-block.c
open.c	[PATCH] fdtable: Make fdarray and fdsets equal in size	2006-12-10 09:57:22 -08:00
pipe.c	VFS: delay the dentry name generation on sockets and pipes	2007-05-08 11:15:03 -07:00
pnode.c	[PATCH] rename struct namespace to struct mnt_namespace	2006-12-08 08:28:51 -08:00
pnode.h	[PATCH] rename struct namespace to struct mnt_namespace	2006-12-08 08:28:51 -08:00
posix_acl.c
quota.c
quota_v1.c
quota_v2.c
read_write.c	use use SEEK_MAX to validate user lseek arguments	2007-05-08 11:14:59 -07:00
read_write.h
readdir.c	[PATCH] VFS: change struct file to use struct path	2006-12-08 08:28:41 -08:00
select.c	[PATCH] fdtable: Make fdarray and fdsets equal in size	2006-12-10 09:57:22 -08:00
seq_file.c	[PATCH] VFS: change struct file to use struct path	2006-12-08 08:28:41 -08:00
splice.c	[PATCH] splice: partial write fix	2007-03-29 14:26:42 +02:00
stack.c	[PATCH] fs/stack.c: Copy i_nlink after all other attributes are copied	2007-02-19 14:21:50 -08:00
stat.c	[PATCH] VFS: change struct file to use struct path	2006-12-08 08:28:41 -08:00
super.c	add filesystem subtype support	2007-05-08 11:15:01 -07:00
sync.c	[PATCH] Turn do_sync_file_range() into do_sync_mapping_range()	2007-04-26 15:02:26 -07:00
utimes.c	[PATCH] severing fs.h, radix-tree.h -> sched.h	2006-12-04 02:00:24 -05:00
xattr.c	[PATCH] VFS: change struct file to use struct path	2006-12-08 08:28:41 -08:00
xattr_acl.c	[PATCH] remove many unneeded #includes of sched.h	2007-02-14 08:09:54 -08:00