Mikulas Patocka bb91bc7bac dm io: flush cpu cache with vmapped io ... For normal kernel pages, CPU cache is synchronized by the dma layer. However, this is not done for pages allocated with vmalloc. If we do I/O to/from vmallocated pages, we must synchronize CPU cache explicitly. Prior to doing I/O on vmallocated page we must call flush_kernel_vmap_range to flush dirty cache on the virtual address. After finished read we must call invalidate_kernel_vmap_range to invalidate cache on the virtual address, so that accesses to the virtual address return newly read data and not stale data from CPU cache. This patch fixes metadata corruption on dm-snapshots on PA-RISC and possibly other architectures with caches indexed by virtual address. Cc: stable <stable@kernel.org> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>		2011-08-02 12:32:01 +01:00
..
bitmap.c	MD bitmap: Revert DM dirty log hooks	2011-07-27 11:00:37 +10:00
bitmap.h	MD bitmap: Revert DM dirty log hooks	2011-07-27 11:00:37 +10:00
dm-bio-record.h
dm-crypt.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
dm-delay.c	dm: convert workqueues to alloc_ordered	2011-01-13 19:59:57 +00:00
dm-exception-store.c
dm-exception-store.h
dm-flakey.c	dm: add flakey target	2011-03-24 13:54:24 +00:00
dm-io.c	dm io: flush cpu cache with vmapped io	2011-08-02 12:32:01 +01:00
dm-ioctl.c	dm ioctl: add flag to wipe buffers for secure data	2011-03-24 13:54:30 +00:00
dm-kcopyd.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
dm-linear.c
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	netlink: kill eff_cap from struct netlink_skb_parms	2011-03-03 13:32:07 -08:00
dm-log-userspace-transfer.h
dm-log.c	dm io: use fixed initial mempool size	2011-05-29 13:03:09 +01:00
dm-mpath.c	dm mpath: fix potential NULL pointer in feature arg processing	2011-08-02 12:32:00 +01:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
dm-raid.c	md/dm - remove remains of plug_fn callback.	2011-04-18 18:25:41 +10:00
dm-raid1.c	dm kcopyd: return client directly and not through a pointer	2011-05-29 13:03:13 +01:00
dm-region-hash.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
dm-round-robin.c
dm-service-time.c
dm-snap-persistent.c	dm snapshot: flush disk cache when merging	2011-08-02 12:32:00 +01:00
dm-snap-transient.c
dm-snap.c	dm kcopyd: return client directly and not through a pointer	2011-05-29 13:03:13 +01:00
dm-stripe.c	dm stripe: implement merge method	2011-03-24 13:54:35 +00:00
dm-sysfs.c
dm-table.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
dm-target.c
dm-uevent.c
dm-uevent.h
dm-zero.c
dm.c	block: fix non-atomic access to genhd inflight structures	2011-03-22 08:35:35 +01:00
dm.h	block: Require subsystems to explicitly allocate bio_set integrity mempool	2011-03-17 11:11:05 +01:00
faulty.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
Kconfig	dm: add flakey target	2011-03-24 13:54:24 +00:00
linear.c	md,rcu: Convert call_rcu(free_conf) to kfree_rcu()	2011-07-20 11:05:29 -07:00
linear.h
Makefile	dm: add flakey target	2011-03-24 13:54:24 +00:00
md.c	Merge branch 'for-linus' of git://neil.brown.name/md	2011-07-28 05:50:27 -07:00
md.h	md: make it easier to wait for bad blocks to be acknowledged.	2011-07-28 11:31:48 +10:00
multipath.c	md: make error_handler functions more uniform and correct.	2011-05-11 14:38:44 +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
raid1.c	md/raid1: factor several functions out or raid1d()	2011-07-28 11:38:13 +10:00
raid1.h	md/raid1: Handle write errors by updating badblock log.	2011-07-28 11:32:41 +10:00
raid5.c	md/raid5: Clear bad blocks on successful write.	2011-07-28 11:39:23 +10:00
raid5.h	md/raid5: Clear bad blocks on successful write.	2011-07-28 11:39:23 +10:00
raid10.c	md/raid10: handle further errors during fix_read_error better.	2011-07-28 11:39:25 +10:00
raid10.h	md/raid10: Handle write errors by updating badblock log.	2011-07-28 11:39:24 +10:00