linux/fs/hfs
Jan Blunck db71922217 BKL: Explicitly add BKL around get_sb/fill_super
This patch is a preparation necessary to remove the BKL from do_new_mount().
It explicitly adds calls to lock_kernel()/unlock_kernel() around
get_sb/fill_super operations for filesystems that still uses the BKL.

I've read through all the code formerly covered by the BKL inside
do_kern_mount() and have satisfied myself that it doesn't need the BKL
any more.

do_kern_mount() is already called without the BKL when mounting the rootfs
and in nfsctl. do_kern_mount() calls vfs_kern_mount(), which is called
from various places without BKL: simple_pin_fs(), nfs_do_clone_mount()
through nfs_follow_mountpoint(), afs_mntpt_do_automount() through
afs_mntpt_follow_link(). Both later functions are actually the filesystems
follow_link inode operation. vfs_kern_mount() is calling the specified
get_sb function and lets the filesystem do its job by calling the given
fill_super function.

Therefore I think it is safe to push down the BKL from the VFS to the
low-level filesystems get_sb/fill_super operation.

[arnd: do not add the BKL to those file systems that already
       don't use it elsewhere]

Signed-off-by: Jan Blunck <jblunck@infradead.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Christoph Hellwig <hch@infradead.org>
2010-10-04 21:10:10 +02:00
..
attr.c
bfind.c address hfs on-disk corruption robustness review comments 2008-02-06 10:41:05 -08:00
bitmap.c hfs: convert bitmap_lock in a mutex 2008-07-25 10:53:33 -07:00
bnode.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
brec.c hfs_bnode_find() can fail, resulting in hfs_bnode_split() breakage 2008-03-17 09:46:55 -07:00
btree.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
btree.h
catalog.c hfs: fix a potential buffer overflow 2009-12-15 08:53:10 -08:00
dir.c hfs: fix a potential buffer overflow 2009-12-15 08:53:10 -08:00
extent.c hfs: convert extents_lock in a mutex 2008-07-25 10:53:33 -07:00
hfs_fs.h convert remaining ->clear_inode() to ->evict_inode() 2010-08-09 16:48:37 -04:00
hfs.h address hfs on-disk corruption robustness review comments 2008-02-06 10:41:05 -08:00
inode.c convert remaining ->clear_inode() to ->evict_inode() 2010-08-09 16:48:37 -04:00
Kconfig fs/Kconfig: move hfs, hfsplus out 2009-01-22 13:15:57 +03:00
Makefile
mdb.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
part_tbl.c
string.c
super.c BKL: Explicitly add BKL around get_sb/fill_super 2010-10-04 21:10:10 +02:00
sysdep.c constify dentry_operations: misc filesystems 2009-03-27 14:44:00 -04:00
trans.c