linux/fs/smbfs
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
..
cache.c remove unused #include <linux/dirent.h>'s 2008-07-25 10:53:34 -07:00
dir.c fs/: do not fallback to default_llseek() when readdir() uses BKL 2010-05-27 09:12:56 -07:00
file.c drop unused dentry argument to ->fsync 2010-05-27 22:05:02 -04:00
getopt.c
getopt.h
inode.c BKL: Explicitly add BKL around get_sb/fill_super 2010-10-04 21:10:10 +02:00
ioctl.c smbfs: Push down BKL into ioctl function 2010-05-17 05:27:04 +02:00
Kconfig fs/Kconfig: move smbfs out 2009-01-22 13:16:01 +03:00
Makefile FS: Remove dead code 2008-01-28 23:14:37 +01:00
proc.c smbfs: read buffer overflow 2009-09-23 07:39:27 -07:00
proto.h smbfs: Push down BKL into ioctl function 2010-05-17 05:27:04 +02:00
request.c Remove commented-out code copied from NFS 2007-12-06 17:40:31 -05:00
request.h
smb_debug.h fs: replace remaining __FUNCTION__ occurrences 2008-04-30 08:29:54 -07:00
smbiod.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
sock.c smbfs: fix calculation of kernel_recvmsg size parameter in smb_receive() 2008-02-06 10:41:02 -08:00
symlink.c smbfs: remove duplicated #include 2010-05-25 08:07:07 -07:00