linux/fs/afs
Lukas Czerner d47992f86b mm: change invalidatepage prototype to accept length
Currently there is no way to truncate partial page where the end
truncate point is not at the end of the page. This is because it was not
needed and the functionality was enough for file system truncate
operation to work properly. However more file systems now support punch
hole feature and it can benefit from mm supporting truncating page just
up to the certain point.

Specifically, with this functionality truncate_inode_pages_range() can
be changed so it supports truncating partial page at the end of the
range (currently it will BUG_ON() if 'end' is not at the end of the
page).

This commit changes the invalidatepage() address space operation
prototype to accept range to be invalidated and update all the instances
for it.

We also change the block_invalidatepage() in the same way and actually
make a use of the new length argument implementing range invalidation.

Actual file system implementations will follow except the file systems
where the changes are really simple and should not change the behaviour
in any way .Implementation for truncate_page_range() which will be able
to accept page unaligned ranges will follow as well.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Hugh Dickins <hughd@google.com>
2013-05-21 23:17:23 -04:00
..
afs_cm.h afs: support the CB.ProbeUuid RPC op 2008-04-29 08:06:26 -07:00
afs_fs.h
afs_vl.h AFS: Fix silly characters in a comment 2011-07-20 20:48:03 -04:00
afs.h afs: Support interacting with multiple user namespaces 2013-02-13 06:00:51 -08:00
cache.c Fix common misspellings 2011-03-31 11:26:23 -03:00
callback.c workqueue: use mod_delayed_work() instead of cancel + queue 2012-08-13 16:27:37 -07:00
cell.c Fix common misspellings 2011-03-31 11:26:23 -03:00
cmservice.c afs: add afs_wq and use it instead of the system workqueue 2011-01-14 09:25:11 -08:00
dir.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
file.c mm: change invalidatepage prototype to accept length 2013-05-21 23:17:23 -04:00
flock.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
fsclient.c afs: Support interacting with multiple user namespaces 2013-02-13 06:00:51 -08:00
inode.c afs: Support interacting with multiple user namespaces 2013-02-13 06:00:51 -08:00
internal.h afs: Read of file returns EBADMSG 2012-03-16 17:01:41 -07:00
Kconfig fs/afs: remove depends on CONFIG_EXPERIMENTAL 2013-01-21 14:39:04 -08:00
main.c afs: add afs_wq and use it instead of the system workqueue 2011-01-14 09:25:11 -08:00
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 stop passing nameidata to ->lookup() 2012-07-14 16:34:32 +04:00
netdevices.c afs: BUG to BUG_ON changes 2009-04-09 10:41:19 -07:00
proc.c procfs: new helper - PDE_DATA(inode) 2013-04-09 14:13:32 -04:00
rxrpc.c afs: Remote abort can cause BUG in rxrpc code 2012-03-16 17:01:41 -07:00
security.c ->permission() sanitizing: don't pass flags to ->permission() 2011-07-20 01:43:24 -04:00
server.c workqueue: use mod_delayed_work() instead of cancel + queue 2012-08-13 16:27:37 -07:00
super.c fs: Limit sys_mount to only request filesystem modules. 2013-03-03 19:36:31 -08:00
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 workqueue: use mod_delayed_work() instead of cancel + queue 2012-08-13 16:27:37 -07:00
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 aio: don't include aio.h in sched.h 2013-05-07 20:16:25 -07:00