From: Shaohua Li <shli@fb.com>
Date: Fri, 29 May 2015 00:33:47 +0000 (-0700)
Subject: md/raid5: ignore released_stripes check
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=713bc5c2deb437ef40d48374ae6a57e030bd9e35;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

md/raid5: ignore released_stripes check

conf->released_stripes list isn't always related to where there are
free stripes pending. Active stripes can be in the list too.
And even free stripes were active very recently.

Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 9a3b143b0b68..59e44e99eef3 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -681,8 +681,8 @@ get_active_stripe(struct r5conf *conf, sector_t sector,
 		if (!sh) {
 			if (!test_bit(R5_INACTIVE_BLOCKED, &conf->cache_state)) {
 				sh = get_free_stripe(conf, hash);
-				if (!sh && llist_empty(&conf->released_stripes) &&
-				    !test_bit(R5_DID_ALLOC, &conf->cache_state))
+				if (!sh && !test_bit(R5_DID_ALLOC,
+						     &conf->cache_state))
 					set_bit(R5_ALLOC_MORE,
 						&conf->cache_state);
 			}