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Dan Williams 5157b4aa5b raid6: fix recovery performance regression 
The raid6 recovery code should immediately drop back to the optimized
synchronous path when a p+q dma resource is not available.  Otherwise we
run the non-optimized/multi-pass async code in sync mode.

Verified with raid6test (NDISKS=255)

Applies to kernels >= 2.6.32.

Cc: <stable@kernel.org>
Acked-by: NeilBrown <neilb@suse.de>
Reported-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-05 07:52:56 -07:00
..
async_tx raid6: fix recovery performance regression 2010-05-05 07:52:56 -07:00
ablkcipher.c crypto: ablkcipher - Fix checkpatch errors 2010-02-16 20:23:37 +08:00
aead.c crypto: aead - Fix checkpatch errors 2010-02-16 20:24:07 +08:00
aes_generic.c crypto: aes_generic - Fix checkpatch errors 2010-02-16 20:34:59 +08:00
ahash.c crypto: hash - Fix handling of unaligned buffers 2010-03-03 08:03:23 +08:00
algapi.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
algboss.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
ansi_cprng.c crypto: ansi_cprng - Move FIPS functions under CONFIG_CRYPTO_FIPS 2009-11-23 20:25:50 +08:00
anubis.c crypto: anubis - Fix checkpatch errors 2010-02-16 20:25:39 +08:00
api.c crypto: api - Fix checkpatch errors 2010-02-16 20:26:46 +08:00
arc4.c
authenc.c crypto: authenc - Add EINPROGRESS check 2010-04-26 09:14:05 +08:00
blkcipher.c
blowfish.c crypto: blowfish - Fix checkpatch errors 2010-02-16 20:24:30 +08:00
camellia.c crypto: camellia - Fix checkpatch errors 2010-02-16 20:27:57 +08:00
cast5.c crypto: cast5 - Fix checkpatch errors 2010-02-16 20:29:01 +08:00
cast6.c crypto: cast6 - Fix checkpatch errors 2010-02-16 20:29:45 +08:00
cbc.c
ccm.c
chainiv.c
cipher.c crypto: cipher - Fix checkpatch errors 2010-02-16 20:31:37 +08:00
compress.c crypto: compress - Fix checkpatch errors 2010-02-16 20:31:04 +08:00
crc32c.c crypto: crc32 - Fix checkpatch errors 2010-02-16 20:31:19 +08:00
cryptd.c percpu: add __percpu sparse annotations to what's left 2010-02-17 11:17:38 +09:00
crypto_null.c crypto: crypto_null - Fix checkpatch errors 2010-02-16 20:31:54 +08:00
crypto_wq.c
ctr.c
cts.c
deflate.c crypto: deflate - Fix checkpatch errors 2010-02-16 20:32:13 +08:00
des_generic.c crypto: des_generic - Fix checkpatch errors 2010-02-16 20:32:31 +08:00
ecb.c crypto: ecb - Fix checkpatch errors 2010-02-16 20:33:49 +08:00
eseqiv.c
fcrypt.c crypto: fcrypt - Fix checkpatch errors 2010-02-16 20:34:07 +08:00
fips.c
gcm.c crypto: gcm - Add RFC4543 wrapper for GCM 2010-01-17 21:52:11 +11:00
gf128mul.c
ghash-generic.c
hmac.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
internal.h
Kconfig Merge branch 'for-next' into for-linus 2010-03-08 16:55:37 +01:00
khazad.c
krng.c
lrw.c
lzo.c
Makefile crypto: pcrypt - Add pcrypt crypto parallelization wrapper 2010-01-07 15:57:19 +11:00
md4.c
md5.c crypto: md5 - Set statesize 2010-03-02 21:58:16 +08:00
michael_mic.c
pcbc.c
pcompress.c
pcrypt.c crypto: pcrypt - call the complete function on error 2010-02-04 11:40:17 +11:00
proc.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2009-12-08 15:55:13 -08:00
ripemd.h
rmd128.c
rmd160.c
rmd256.c
rmd320.c
rng.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
salsa20_generic.c
scatterwalk.c
seed.c
seqiv.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
serpent.c
sha1_generic.c
sha256_generic.c
sha512_generic.c
shash.c
tcrypt.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
tcrypt.h
tea.c
testmgr.c crypto: testmgr - Fix complain about lack test for internal used algorithm 2009-12-23 19:45:20 +08:00
testmgr.h crypto: testmgr - Add ghash algorithm test before provide to users 2009-11-23 20:23:04 +08:00
tgr192.c
twofish_common.c
twofish.c
vmac.c
wp512.c
xcbc.c
xor.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
xts.c
zlib.c