kernel_optimize_test/fs/gfs2
Steven Whitehouse ff7f4cb461 GFS2: Consolidate free block searching functions
With the recently added block reservation code, an additional function
was added to search for free blocks. This had a restriction of only being
able to search for aligned extents of free blocks. As a result the
allocation patterns when reserving blocks were suboptimal when the
existing allocation of blocks for an inode was not aligned to the same
boundary.

This patch resolves that problem by adding the ability for gfs2_rbm_find
to search for extents of a particular minimum size. We can then use
gfs2_rbm_find for both looking for reservations, and also looking for
free blocks on an individual basis when we actually come to do the
allocation later on. As a result we only need a single set of code
to deal with both situations.

The function gfs2_rbm_from_block() is moved up rgrp.c so that it
occurs before all of its callers.

Many thanks are due to Bob for helping track down the final issue in
this patch. That fix to the rb_tree traversal and to not share
block reservations from a dirctory to its children is included here.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
2012-09-24 10:47:26 +01:00
..
acl.c GFS2: Fix sgid propagation when using ACLs 2012-05-04 14:33:06 +01:00
acl.h fs: take the ACL checks to common code 2011-07-25 14:30:23 -04:00
aops.c GFS2: change function gfs2_direct_IO to use a normal gfs2_glock_dq 2012-09-24 10:47:06 +01:00
bmap.c GFS2: Add structure to contain rgrp, bitmap, offset tuple 2012-09-24 10:46:56 +01:00
bmap.h GFS2: New truncate sequence 2010-09-20 11:18:16 +01:00
dentry.c stop passing nameidata * to ->d_revalidate() 2012-07-14 16:34:14 +04:00
dir.c GFS2: Fold quota data into the reservations struct 2012-06-06 11:20:22 +01:00
dir.h GFS2: Add readahead to sequential directory traversal 2011-11-08 09:52:12 +00:00
export.c ->encode_fh() API change 2012-05-29 23:28:33 -04:00
file.c GFS2: Remove rs_requested field from reservations 2012-09-24 10:46:54 +01:00
gfs2.h [GFS2] Remove remote lock dropping code 2008-06-27 09:39:44 +01:00
glock.c GFS2: Eliminate redundant calls to may_grant 2012-09-24 10:47:12 +01:00
glock.h GFS2: dlm based recovery coordination 2012-01-11 09:23:05 +00:00
glops.c GFS2: Remove redundant metadata block type check 2012-05-08 16:18:55 +01:00
glops.h GFS2: Fix AIL flush issue during fsync 2011-10-21 12:39:41 +01:00
incore.h GFS2: Consolidate free block searching functions 2012-09-24 10:47:26 +01:00
inode.c GFS2: Consolidate free block searching functions 2012-09-24 10:47:26 +01:00
inode.h GFS2: Remove unused argument from gfs2_internal_read 2012-04-24 16:44:37 +01:00
Kconfig GFS2: use depends instead of select in kconfig 2012-03-26 09:18:02 +01:00
lock_dlm.c dlm: fixes for nodir mode 2012-05-02 14:15:27 -05:00
log.c GFS2: eliminate log elements and simplify 2012-05-02 09:14:36 +01:00
log.h GFS2: Clean up log write code path 2012-04-24 16:44:34 +01:00
lops.c GFS2: Fix error handling when reading an invalid block from the journal 2012-06-06 11:27:49 +01:00
lops.h GFS2: eliminate log elements and simplify 2012-05-02 09:14:36 +01:00
main.c GFS2: Fold quota data into the reservations struct 2012-06-06 11:20:22 +01:00
Makefile GFS2: Rename ops_inode.c to inode.c 2011-05-10 13:12:49 +01:00
meta_io.c gfs2: nuke pdflush from comments 2012-08-04 12:15:40 +04:00
meta_io.h GFS2: Eliminate unused "new" parameter to gfs2_meta_indirect_buffer 2012-05-11 10:19:23 +01:00
ops_fstype.c GFS2: Get rid of I_MUTEX_QUOTA usage 2012-09-24 10:47:24 +01:00
quota.c GFS2: Get rid of I_MUTEX_QUOTA usage 2012-09-24 10:47:24 +01:00
quota.h quota: Split dquot_quota_sync() to writeback and cache flushing part 2012-07-22 23:58:19 +04:00
recovery.c GFS2: fail mount if journal recovery fails 2012-01-11 09:24:48 +00:00
recovery.h gfs2: use workqueue instead of slow-work 2010-07-23 13:14:25 +02:00
rgrp.c GFS2: Consolidate free block searching functions 2012-09-24 10:47:26 +01:00
rgrp.h GFS2: Consolidate free block searching functions 2012-09-24 10:47:26 +01:00
super.c GFS2: Fix ->show_options() for statfs slow 2012-09-24 10:47:17 +01:00
super.h gfs: constify xattr_handler 2010-05-21 18:31:20 -04:00
sys.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw 2012-07-24 17:57:05 -07:00
sys.h GFS2: dlm based recovery coordination 2012-01-11 09:23:05 +00:00
trace_gfs2.h GFS2: Improve block reservation tracing 2012-09-24 10:47:20 +01:00
trans.c gfs2: Convert to new freezing mechanism 2012-07-31 09:45:50 +04:00
trans.h GFS2: Remove rs_requested field from reservations 2012-09-24 10:46:54 +01:00
util.c GFS2: Clean up log write code path 2012-04-24 16:44:34 +01:00
util.h GFS2: Fix error handling when reading an invalid block from the journal 2012-06-06 11:27:49 +01:00
xattr.c GFS2: Remove rs_requested field from reservations 2012-09-24 10:46:54 +01:00
xattr.h sanitize xattr handler prototypes 2009-12-16 12:16:49 -05:00