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
..
affs.h	switch affs to ->evict_inode()	2010-08-09 16:48:06 -04:00
amigaffs.c
bitmap.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
Changes
dir.c
file.c	get rid of cont_write_begin_newtrunc	2010-08-09 16:47:31 -04:00
inode.c	switch affs to ->evict_inode()	2010-08-09 16:48:06 -04:00
Kconfig
Makefile
namei.c	fs/affs: use ERR_CAST	2010-05-27 09:12:53 -07:00
super.c	BKL: Explicitly add BKL around get_sb/fill_super	2010-10-04 21:10:10 +02:00
symlink.c