NeilBrown 2585f3ef8c md/bitmap: improve handling of 'allclean'. ...

The 'allclean' flag is used to cache the fact that there is nothing to
do, so we can avoid waking up and scanning the bitmap regularly.

The two sorts of pages that might need the attention of the bitmap
daemon are BITMAP_PAGE_PENDING and BITMAP_PAGE_NEEDWRITE pages.

So make sure allclean reflects exactly when there are none of those.
So:
  set it before scanning all pages with either bit set.
  clear it whenever these bits are set
  clear it when we desire not to clear one of these bits.
  don't clear it any other time.

Signed-off-by: NeilBrown <neilb@suse.de>

2011-09-21 15:37:46 +10:00

..

bitmap.c

md/bitmap: improve handling of 'allclean'.

2011-09-21 15:37:46 +10:00

bitmap.h

MD bitmap: Revert DM dirty log hooks

2011-07-27 11:00:37 +10:00

dm-bio-record.h

dm: preserve bi_io_vec when resubmitting bios

2009-04-02 19:55:23 +01:00

dm-crypt.c

dm crypt: optionally support discard requests

2011-08-02 12:32:08 +01:00

dm-delay.c

dm: convert workqueues to alloc_ordered

2011-01-13 19:59:57 +00:00

dm-exception-store.c

dm snapshot: test chunk size against both origin and snapshot

2010-08-12 04:13:51 +01:00

dm-exception-store.h

dm snapshot: test chunk size against both origin and snapshot

2010-08-12 04:13:51 +01:00

dm-flakey.c

dm flakey: add corrupt_bio_byte feature

2011-08-02 12:32:06 +01:00

dm-io.c

dm io: flush cpu cache with vmapped io

2011-08-02 12:32:01 +01:00

dm-ioctl.c

dm ioctl: forbid multiple device specifiers

2011-08-02 12:32:06 +01:00

dm-kcopyd.c

dm snapshot: skip reading origin when overwriting complete chunk

2011-08-02 12:32:04 +01:00

dm-linear.c

dm: use dm_target_offset macro

2010-08-12 04:14:11 +01:00

dm-log-userspace-base.c

dm log: userspace use list_move

2011-08-02 12:32:02 +01:00

dm-log-userspace-transfer.c

netlink: kill eff_cap from struct netlink_skb_parms

2011-03-03 13:32:07 -08:00

dm-log-userspace-transfer.h

dm log: userspace add luid to distinguish between concurrent log instances

2009-09-04 20:40:34 +01:00

dm-log.c

dm: use vzalloc

2011-08-02 12:32:02 +01:00

dm-mpath.c

dm table: share target argument parsing functions

2011-08-02 12:32:04 +01:00

dm-mpath.h

…

dm-path-selector.c

dm: path selector use module refcount directly

2009-04-02 19:55:27 +01:00

dm-path-selector.h

dm mpath: add start_io and nr_bytes to path selectors

2009-06-22 10:12:27 +01:00

dm-queue-length.c

atomic: use <linux/atomic.h>

2011-07-26 16:49:47 -07:00

dm-raid1.c

dm kcopyd: return client directly and not through a pointer

2011-05-29 13:03:13 +01:00

dm-raid.c

dm raid: add md raid1 support

2011-08-02 12:32:07 +01:00

dm-region-hash.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

dm-round-robin.c

dm mpath: add start_io and nr_bytes to path selectors

2009-06-22 10:12:27 +01:00

dm-service-time.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

dm-snap-persistent.c

dm snapshot: style cleanups

2011-08-02 12:32:03 +01:00

dm-snap-transient.c

dm snapshot: move cow ref from exception store to snap core

2009-12-10 23:52:12 +00:00

dm-snap.c

dm snapshot: skip reading origin when overwriting complete chunk

2011-08-02 12:32:04 +01:00

dm-stripe.c

dm stripe: implement merge method

2011-03-24 13:54:35 +00:00

dm-sysfs.c

Driver core: Constify struct sysfs_ops in struct kobj_type

2010-03-07 17:04:49 -08:00

dm-table.c

dm table: set flush capability based on underlying devices

2011-08-02 12:32:08 +01:00

dm-target.c

dm: error return error for discards

2010-08-12 04:14:14 +01:00

dm-uevent.c

dm table: remove dm_get from dm_table_get_md

2010-03-06 02:29:52 +00:00

dm-uevent.h

…

dm-zero.c

dm: zero silently drop discards

2010-08-12 04:14:12 +01:00

dm.c

dm table: set flush capability based on underlying devices

2011-08-02 12:32:08 +01:00

dm.h

dm: ignore merge_bvec for snapshots when safe

2011-08-02 12:32:04 +01:00

faulty.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

Kconfig

dm raid: support metadata devices

2011-08-02 12:32:07 +01:00

linear.c

md,rcu: Convert call_rcu(free_conf) to kfree_rcu()

2011-07-20 11:05:29 -07:00

linear.h

md/linear: avoid corrupting structure while waiting for rcu_free to complete.

2011-08-25 14:43:53 +10:00

Makefile

dm: add flakey target

2011-03-24 13:54:24 +00:00

md.c

md: Avoid waking up a thread after it has been freed.

2011-09-21 15:30:20 +10:00

md.h

md: Avoid waking up a thread after it has been freed.

2011-09-21 15:30:20 +10:00

multipath.c

md: Avoid waking up a thread after it has been freed.

2011-09-21 15:30:20 +10:00

multipath.h

md/multipath: discard ->working_disks in favour of ->degraded

2011-05-11 14:38:02 +10:00

raid0.c

block: Require subsystems to explicitly allocate bio_set integrity mempool

2011-03-17 11:11:05 +01:00

raid0.h

md: fix handling of array level takeover that re-arranges devices.

2010-06-24 13:33:24 +10:00

raid1.c

md: Avoid waking up a thread after it has been freed.

2011-09-21 15:30:20 +10:00

raid1.h

md/raid1: Handle write errors by updating badblock log.

2011-07-28 11:32:41 +10:00

raid5.c

md: Avoid waking up a thread after it has been freed.

2011-09-21 15:30:20 +10:00

raid5.h

md/raid5: Clear bad blocks on successful write.

2011-07-28 11:39:23 +10:00

raid10.c

md: Avoid waking up a thread after it has been freed.

2011-09-21 15:30:20 +10:00

raid10.h

md/raid10: Handle write errors by updating badblock log.

2011-07-28 11:39:24 +10:00