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linux-next/fs/gfs2
Steven Whitehouse b50f227bdd GFS2: Clean up journal extent mapping
This patch fixes a long standing issue in mapping the journal
extents. Most journals will consist of only a single extent,
and although the cache took account of that by merging extents,
it did not actually map large extents, but instead was doing a
block by block mapping. Since the journal was only being mapped
on mount, this was not normally noticeable.

With the updated code, it is now possible to use the same extent
mapping system during journal recovery (which will be added in a
later patch). This will allow checking of the integrity of the
journal before any reply of the journal content is attempted. For
this reason the code is moving to bmap.c, since it will be used
more widely in due course.

An exercise left for the reader is to compare the new function
gfs2_map_journal_extents() with gfs2_write_alloc_required()

Additionally, should there be a failure, the error reporting is
also updated to show more detail about what went wrong.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2014-03-03 13:50:12 +00:00
..
acl.c gfs2: use generic posix ACL infrastructure 2014-01-25 23:58:22 -05:00
acl.h gfs2: use generic posix ACL infrastructure 2014-01-25 23:58:22 -05:00
aops.c GFS2: journal data writepages update 2014-02-06 15:47:47 +00:00
bmap.c GFS2: Clean up journal extent mapping 2014-03-03 13:50:12 +00:00
bmap.h GFS2: Clean up journal extent mapping 2014-03-03 13:50:12 +00:00
dentry.c gfs2: use check_submounts_and_drop() 2013-09-05 16:23:51 -04:00
dir.c GFS2: Add meta readahead field in directory entries 2014-02-07 11:23:22 +00:00
dir.h GFS2: Remember directory insert point 2014-01-06 12:49:43 +00:00
export.c [readdir] constify ->actor 2013-06-29 12:57:05 +04:00
file.c GFS2: Lock i_mutex and use a local gfs2_holder for fallocate 2014-02-06 15:49:58 +00:00
gfs2.h [GFS2] Remove remote lock dropping code 2008-06-27 09:39:44 +01:00
glock.c GFS2: Don't use ENOBUFS when ENOMEM is the correct error code 2014-01-16 10:31:13 +00:00
glock.h GFS2: Don't use ENOBUFS when ENOMEM is the correct error code 2014-01-16 10:31:13 +00:00
glops.c GFS2: Move log buffer lists into transaction 2014-02-24 16:54:54 +00:00
glops.h GFS2: Fix AIL flush issue during fsync 2011-10-21 12:39:41 +01:00
incore.h GFS2: Clean up journal extent mapping 2014-03-03 13:50:12 +00:00
inode.c GFS2: Allocate block for xattr at inode alloc time, if required 2014-02-04 15:45:11 +00:00
inode.h GFS2: Add atomic_open support 2013-06-14 11:17:15 +01:00
Kconfig Finally eradicate CONFIG_HOTPLUG 2013-06-03 14:20:18 -07:00
lock_dlm.c GFS2: add missing newline 2014-02-17 10:00:58 +00:00
log.c GFS2: Remove extra "if" in gfs2_log_flush() 2014-02-25 11:52:20 +00:00
log.h GFS2: aggressively issue revokes in gfs2_log_flush 2013-06-19 09:41:59 +01:00
lops.c GFS2: Clean up journal extent mapping 2014-03-03 13:50:12 +00:00
lops.h GFS2: Move log buffer lists into transaction 2014-02-24 16:54:54 +00:00
main.c GFS2: Use RCU/hlist_bl based hash for quotas 2014-01-14 19:27:56 +00:00
Makefile GFS2: Rename ops_inode.c to inode.c 2011-05-10 13:12:49 +01:00
meta_io.c GFS2: Move log buffer accounting to transaction 2014-02-24 19:49:12 +00:00
meta_io.h GFS2: Move gfs2_sync_meta to lops.c 2013-08-19 17:26:32 +01:00
ops_fstype.c GFS2: Clean up journal extent mapping 2014-03-03 13:50:12 +00:00
quota.c GFS2: replace kmalloc - __vmalloc / memset 0 2014-02-27 12:21:22 +00:00
quota.h GFS2: Use RCU/hlist_bl based hash for quotas 2014-01-14 19:27:56 +00:00
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: Mark functions as static in gfs2/rgrp.c 2014-02-10 12:29:16 +00:00
rgrp.h GFS2: Don't use ENOBUFS when ENOMEM is the correct error code 2014-01-16 10:31:13 +00:00
super.c GFS2: Clean up journal extent mapping 2014-03-03 13:50:12 +00:00
super.h GFS2: Clean up freeze code 2013-01-29 10:29:05 +00:00
sys.c GFS2: Remove obsolete quota tunable 2013-10-04 09:49:29 +01:00
sys.h GFS2: dlm based recovery coordination 2012-01-11 09:23:05 +00:00
trace_gfs2.h GFS2: Add origin indicator to glock demote tracing 2013-04-10 10:32:05 +01:00
trans.c GFS2: Move log buffer accounting to transaction 2014-02-24 19:49:12 +00:00
trans.h GFS2: Split gfs2_trans_add_bh() into two 2013-01-29 10:28:04 +00:00
util.c GFS2: Move gfs2_icbit_munge into quota.c 2013-10-02 14:47:02 +01:00
util.h GFS2: Move gfs2_icbit_munge into quota.c 2013-10-02 14:47:02 +01:00
xattr.c gfs2: use generic posix ACL infrastructure 2014-01-25 23:58:22 -05:00
xattr.h sanitize xattr handler prototypes 2009-12-16 12:16:49 -05:00