linux/fs/befs/linuxvfs.c, branch v2.6.39-rc2

block: remove per-queue plugging

2011-03-10T07:52:07Z

Code has been converted over to the new explicit on-stack plugging, and delay users have been converted to use the new API for that. So lets kill off the old plugging along with aops->sync_page(). Signed-off-by: Jens Axboe

befs: don't pass huge structs by value

2011-01-13T16:03:15Z

'struct befs_disk_data_stream' is huge (~144 bytes) and it's being passed by value in fs/befs/endian.h::cpu_to_fsrun(). It would be better to pass a pointer. Signed-off-by: Jesper Juhl Cc: Will Dyson Cc: Geert Uytterhoeven Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

fs: icache RCU free inodes

2011-01-07T06:50:26Z

RCU free the struct inode. This will allow: - Subsequent store-free path walking patch. The inode must be consulted for permissions when walking, so an RCU inode reference is a must. - sb_inode_list_lock to be moved inside i_lock because sb list walkers who want to take i_lock no longer need to take sb_inode_list_lock to walk the list in the first place. This will simplify and optimize locking. - Could remove some nested trylock loops in dcache code - Could potentially simplify things a bit in VM land. Do not need to take the page lock to follow page->mapping. The downsides of this is the performance cost of using RCU. In a simple creat/unlink microbenchmark, performance drops by about 10% due to inability to reuse cache-hot slab objects. As iterations increase and RCU freeing starts kicking over, this increases to about 20%. In cases where inode lifetimes are longer (ie. many inodes may be allocated during the average life span of a single inode), a lot of this cache reuse is not applicable, so the regression caused by this patch is smaller. The cache-hot regression could largely be avoided by using SLAB_DESTROY_BY_RCU, however this adds some complexity to list walking and store-free path walking, so I prefer to implement this at a later date, if it is shown to be a win in real situations. I haven't found a regression in any non-micro benchmark so I doubt it will be a problem. Signed-off-by: Nick Piggin

new helper: mount_bdev()

2010-10-29T08:16:13Z

... and switch of the obvious get_sb_bdev() users to ->mount() Signed-off-by: Al Viro

fix typos concerning "initiali[zs]e"

2010-06-16T16:05:05Z

Signed-off-by: Uwe Kleine-König Signed-off-by: Jiri Kosina

befs: fix leak

2010-02-07T08:06:21Z

Signed-off-by: Al Viro

fs: Make unload_nls() NULL pointer safe

2009-09-24T11:47:42Z

Most call sites of unload_nls() do: if (nls) unload_nls(nls); Check the pointer inside unload_nls() like we do in kfree() and simplify the call sites. Signed-off-by: Thomas Gleixner Cc: Steve French Cc: OGAWA Hirofumi Cc: Roman Zippel Cc: Dave Kleikamp Cc: Petr Vandrovec Cc: Anton Altaparmakov Signed-off-by: Al Viro

const: mark remaining super_operations const

2009-09-22T14:17:24Z

Signed-off-by: Alexey Dobriyan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

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

2009-06-17T15:46:57Z

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: get rid of BKL in fs/sysv get rid of BKL in fs/minix get rid of BKL in fs/efs befs ->pust_super() doesn't need BKL Cleanup of adfs headers 9P doesn't need BKL in ->umount_begin() fuse doesn't need BKL in ->umount_begin() No instance of ->bmap() needs BKL remove unlock_kernel() left accidentally ext4: avoid unnecessary spinlock in critical POSIX ACL path ext3: avoid unnecessary spinlock in critical POSIX ACL path

befs ->pust_super() doesn't need BKL

2009-06-17T04:36:36Z

Signed-off-by: Al Viro