OpenCloudOS-Kernel/fs/gfs2
Benjamin Marzinski 64dd153c83 GFS2: rewrite fallocate code to write blocks directly
GFS2's fallocate code currently goes through the page cache. Since it's only
writing to the end of the file or to holes in it, it doesn't need to, and it
was causing issues on low memory environments. This patch pulls in some of
Steve's block allocation work, and uses it to simply allocate the blocks for
the file, and zero them out at allocation time.  It provides a slight
performance increase, and it dramatically simplifies the code.

Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2011-10-21 12:39:49 +01:00
..
Kconfig GFS2: No longer experimental 2010-09-20 11:18:46 +01:00
Makefile GFS2: Rename ops_inode.c to inode.c 2011-05-10 13:12:49 +01:00
acl.c GFS2: Use ->dirty_inode() 2011-10-21 12:39:26 +01:00
acl.h fs: take the ACL checks to common code 2011-07-25 14:30:23 -04:00
aops.c GFS2: Cache the most recently used resource group in the inode 2011-10-21 12:39:34 +01:00
bmap.c GFS2: rewrite fallocate code to write blocks directly 2011-10-21 12:39:49 +01:00
bmap.h GFS2: New truncate sequence 2010-09-20 11:18:16 +01:00
dentry.c gfs2: fix d_revalidate oopsen on NFS exports 2011-03-10 03:44:48 -05:00
dir.c GFS2: Use cached rgrp in gfs2_rlist_add() 2011-10-21 12:39:39 +01:00
dir.h GFS2: Cache dir hash table in a contiguous buffer 2011-07-15 09:31:48 +01:00
export.c GFS2: Make writeback more responsive to system conditions 2011-04-20 09:01:37 +01:00
file.c GFS2: rewrite fallocate code to write blocks directly 2011-10-21 12:39:49 +01:00
gfs2.h [GFS2] Remove remote lock dropping code 2008-06-27 09:39:44 +01:00
glock.c GFS2: Automatically adjust glock min hold time 2011-07-15 09:32:11 +01:00
glock.h GFS2: Automatically adjust glock min hold time 2011-07-15 09:32:11 +01:00
glops.c GFS2: Fix AIL flush issue during fsync 2011-10-21 12:39:41 +01:00
glops.h GFS2: Fix AIL flush issue during fsync 2011-10-21 12:39:41 +01:00
incore.h GFS2: rewrite fallocate code to write blocks directly 2011-10-21 12:39:49 +01:00
inode.c GFS2: Cache the most recently used resource group in the inode 2011-10-21 12:39:34 +01:00
inode.h GFS2: Use ->dirty_inode() 2011-10-21 12:39:26 +01:00
lock_dlm.c GFS2: Fix glock deallocation race 2011-03-09 10:58:04 +00:00
log.c block: separate priority boosting from REQ_META 2011-08-23 14:50:29 +02:00
log.h GFS2: Make writeback more responsive to system conditions 2011-04-20 09:01:37 +01:00
lops.c GFS2: Use rbtree for resource groups and clean up bitmap buffer ref count scheme 2011-10-21 12:39:31 +01:00
lops.h [GFS2] Only do lo_incore_commit once 2008-03-31 10:39:54 +01:00
main.c atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
meta_io.c block: separate priority boosting from REQ_META 2011-08-23 14:50:29 +02:00
meta_io.h GFS2: Remove unused macro 2011-04-20 09:00:24 +01:00
ops_fstype.c GFS2: Use rbtree for resource groups and clean up bitmap buffer ref count scheme 2011-10-21 12:39:31 +01:00
quota.c GFS2: Cache the most recently used resource group in the inode 2011-10-21 12:39:34 +01:00
quota.h vmscan: change shrinker API by passing shrink_control struct 2011-05-25 08:39:26 -07:00
recovery.c GFS2: Fix spectator umount issue 2010-09-29 14:20:52 +01:00
recovery.h gfs2: use workqueue instead of slow-work 2010-07-23 13:14:25 +02:00
rgrp.c GFS2: Fix off-by-one in gfs2_blk2rgrpd 2011-10-21 12:39:46 +01:00
rgrp.h GFS2: Use cached rgrp in gfs2_rlist_add() 2011-10-21 12:39:39 +01:00
super.c GFS2: Fix AIL flush issue during fsync 2011-10-21 12:39:41 +01:00
super.h gfs: constify xattr_handler 2010-05-21 18:31:20 -04:00
sys.c GFS2: Fix race during filesystem mount 2011-07-12 09:15:46 +01:00
sys.h GFS2: Remove ancient, unused code 2009-01-05 07:39:13 +00:00
trace_gfs2.h GFS2: Add an AIL writeback tracepoint 2011-04-20 09:01:58 +01:00
trans.c GFS2: Use rbtree for resource groups and clean up bitmap buffer ref count scheme 2011-10-21 12:39:31 +01:00
trans.h GFS2: Cache the most recently used resource group in the inode 2011-10-21 12:39:34 +01:00
util.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
util.h GFS2: Metadata address space clean up 2010-03-01 14:07:37 +00:00
xattr.c GFS2: Use cached rgrp in gfs2_rlist_add() 2011-10-21 12:39:39 +01:00
xattr.h sanitize xattr handler prototypes 2009-12-16 12:16:49 -05:00