linux/fs/afs
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
..
afs_cm.h afs: support the CB.ProbeUuid RPC op 2008-04-29 08:06:26 -07:00
afs_fs.h AFS: implement file locking 2007-07-16 09:05:43 -07:00
afs_vl.h [AF_RXRPC]: Make the in-kernel AFS filesystem use AF_RXRPC. 2007-04-26 15:55:03 -07:00
afs.h AFS: implement file locking 2007-07-16 09:05:43 -07:00
cache.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
callback.c Fix various old email addresses for dwmw2 2008-06-06 11:29:10 -07:00
cell.c AFS: Implement an autocell mount capability [ver #2] 2010-08-11 17:11:29 +00:00
cmservice.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
dir.c AFS: Implement an autocell mount capability [ver #2] 2010-08-11 17:11:29 +00:00
file.c AFS: Don't put struct file on the stack 2010-05-21 18:31:28 -04:00
flock.c const: make file_lock_operations const 2009-09-22 07:17:25 -07:00
fsclient.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
inode.c AFS: Implement an autocell mount capability [ver #2] 2010-08-11 17:11:29 +00:00
internal.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6 2010-08-13 10:37:30 -07:00
Kconfig DNS: Make AFS go to the DNS for AFSDB records for unknown cells 2010-08-05 17:17:51 +00:00
main.c AFS: Fix the module init error handling 2010-08-07 14:23:37 -07:00
Makefile FS-Cache: Make kAFS use FS-Cache 2009-04-03 16:42:41 +01:00
misc.c AFS: Correctly translate auth error aborts and don't failover in such cases 2009-06-16 21:20:14 -07:00
mntpt.c AFS: Implement an autocell mount capability [ver #2] 2010-08-11 17:11:29 +00:00
netdevices.c afs: BUG to BUG_ON changes 2009-04-09 10:41:19 -07:00
proc.c AFS: Implement an autocell mount capability [ver #2] 2010-08-11 17:11:29 +00:00
rxrpc.c afs: destroy work queue on init failure 2010-08-11 08:59:22 -07:00
security.c AFS: Potential null dereference 2010-03-22 09:57:19 -07:00
server.c AFS: Fix possible null pointer dereference in afs_alloc_server() 2010-06-01 09:26:36 -07:00
super.c BKL: Explicitly add BKL around get_sb/fill_super 2010-10-04 21:10:10 +02:00
vlclient.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
vlocation.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
vnode.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
volume.c afs: add bdi backing to mount session. 2010-04-22 11:58:18 +02:00
write.c writeback: remove writeback_inodes_wbc 2010-07-06 08:54:03 +02:00