NeilBrown f0b4f7e2f2 md: Fix - again - partition detection when array becomes active ... Revert b821eaa572 and f3b99be19d When I wrote the first of these I had a wrong idea about the lifetime of 'struct block_device'. It can disappear at any time that the block device is not open if it falls out of the inode cache. So relying on the 'size' recorded with it to detect when the device size has changed and so we need to revalidate, is wrong. Rather, we really do need the 'changed' attribute stored directly in the mddev and set/tested as appropriate. Without this patch, a sequence of: mknod / open / close / unlink (which can cause a block_device to be created and then destroyed) will result in a rescan of the partition table and consequence removal and addition of partitions. Several of these in a row can get udev racing to create and unlink and other code can get confused. With the patch, the rescan is only performed when needed and so there are no races. This is suitable for any stable kernel from 2.6.35. Reported-by: "Wojcik, Krzysztof" <krzysztof.wojcik@intel.com> Signed-off-by: NeilBrown <neilb@suse.de> Cc: stable@kernel.org		2011-02-24 17:26:41 +11:00
..
bitmap.c	md: Don't let implementation detail of curr_resync leak out through sysfs.	2011-01-14 09:14:34 +11:00
bitmap.h	md: use sector_t in bitmap_get_counter	2010-10-28 17:32:26 +11:00
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: add loop aes iv generator	2011-01-13 19:59:55 +00:00
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-io.c	dm: implement REQ_FLUSH/FUA support for bio-based dm	2010-09-10 12:35:38 +02:00
dm-ioctl.c	dm ioctl: suppress needless warning messages	2011-01-13 19:59:55 +00:00
dm-kcopyd.c	dm: use non reentrant workqueues if equivalent	2011-01-13 19:59:58 +00:00
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: add version number to comms	2011-01-13 19:59:52 +00:00
dm-log-userspace-transfer.c	dm log userspace: add version number to comms	2011-01-13 19:59:52 +00:00
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 log: use PTR_ERR value instead of ENOMEM	2011-01-13 20:00:00 +00:00
dm-mpath.c	dm mpath: delay activate_path retry on SCSI_DH_RETRY	2011-01-13 20:00:01 +00:00
dm-mpath.h	dm mpath: remove is_active from struct dm_path	2008-10-10 13:36:58 +01:00
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	dm mpath: add queue length load balancer	2009-06-22 10:12:27 +01:00
dm-raid1.c	dm: use non reentrant workqueues if equivalent	2011-01-13 19:59:58 +00:00
dm-raid.c	dm: raid456 basic support	2011-01-13 20:00:02 +00:00
dm-region-hash.c	dm: implement REQ_FLUSH/FUA support for bio-based dm	2010-09-10 12:35:38 +02:00
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: persistent make metadata_wq multithreaded	2011-01-13 19:59:59 +00:00
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: avoid storing private suspended state	2011-01-13 19:59:59 +00:00
dm-stripe.c	dm stripe: switch from local workqueue to system_wq	2011-01-13 19:59:57 +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	block: restore multiple bd_link_disk_holder() support	2011-01-14 18:44:22 +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: remove superfluous irq disablement in dm_request_fn	2011-01-13 20:00:00 +00:00
dm.h	dm: linear support discard	2010-08-12 04:14:08 +01:00
faulty.c	md: use separate bio pool for each md device.	2010-10-28 17:36:15 +11:00
Kconfig	dm: raid456 basic support	2011-01-13 20:00:02 +00:00
linear.c	md: avoid spinlock problem in blk_throtl_exit	2011-02-21 18:25:57 +11:00
linear.h	md/linear: use call_rcu to free obsolete 'conf' structures.	2009-06-18 08:49:42 +10:00
Makefile	dm: raid456 basic support	2011-01-13 20:00:02 +00:00
md.c	md: Fix - again - partition detection when array becomes active	2011-02-24 17:26:41 +11:00
md.h	md: Fix - again - partition detection when array becomes active	2011-02-24 17:26:41 +11:00
multipath.c	md: avoid spinlock problem in blk_throtl_exit	2011-02-21 18:25:57 +11:00
multipath.h	md: remove mddev_to_conf "helper" macro	2009-06-16 16:54:21 +10:00
raid0.c	md: avoid spinlock problem in blk_throtl_exit	2011-02-21 18:25:57 +11:00
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 spinlock problem in blk_throtl_exit	2011-02-21 18:25:57 +11:00
raid1.h	md/raid1: discard unused variable.	2010-10-29 16:40:33 +11:00
raid5.c	md: avoid spinlock problem in blk_throtl_exit	2011-02-21 18:25:57 +11:00
raid5.h	md: implment REQ_FLUSH/FUA support	2010-09-10 12:35:38 +02:00
raid10.c	md: avoid spinlock problem in blk_throtl_exit	2011-02-21 18:25:57 +11:00
raid10.h	md: fix handling of array level takeover that re-arranges devices.	2010-06-24 13:33:24 +10:00