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Date: Tue, 7 Jul 2015 11:11:42 -0400 (EDT)
From: Mikulas Patocka <mpatocka@...hat.com>
To: Mike Snitzer <msnitzer@...hat.com>
cc: "Alasdair G. Kergon" <agk@...hat.com>,
Edward Thornber <thornber@...hat.com>,
Andrew Morton <akpm@...ux-foundation.org>,
David Rientjes <rientjes@...gle.com>,
Vivek Goyal <vgoyal@...hat.com>, linux-kernel@...r.kernel.org,
linux-mm@...ck.org, dm-devel@...hat.com
Subject: [PATCH 5/7] dm-thin: use kvmalloc
Make dm-thin use kvmalloc instead of kmalloc because there was a reported
allocation failure - see
https://bugzilla.redhat.com/show_bug.cgi?id=1225370
Signed-off-by: Mikulas Patocka <mpatocka@...hat.com>
---
drivers/md/dm-thin.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
Index: linux-4.2-rc1/drivers/md/dm-thin.c
===================================================================
--- linux-4.2-rc1.orig/drivers/md/dm-thin.c 2015-07-06 17:32:35.000000000 +0200
+++ linux-4.2-rc1/drivers/md/dm-thin.c 2015-07-06 17:36:28.000000000 +0200
@@ -2791,7 +2791,7 @@ static void __pool_destroy(struct pool *
mempool_destroy(pool->mapping_pool);
dm_deferred_set_destroy(pool->shared_read_ds);
dm_deferred_set_destroy(pool->all_io_ds);
- kfree(pool);
+ kvfree(pool);
}
static struct kmem_cache *_new_mapping_cache;
@@ -2813,7 +2813,7 @@ static struct pool *pool_create(struct m
return (struct pool *)pmd;
}
- pool = kmalloc(sizeof(*pool), GFP_KERNEL);
+ pool = kvmalloc(sizeof(*pool), GFP_KERNEL);
if (!pool) {
*error = "Error allocating memory for pool";
err_p = ERR_PTR(-ENOMEM);
@@ -2908,7 +2908,7 @@ bad_wq:
bad_kcopyd_client:
dm_bio_prison_destroy(pool->prison);
bad_prison:
- kfree(pool);
+ kvfree(pool);
bad_pool:
if (dm_pool_metadata_close(pmd))
DMWARN("%s: dm_pool_metadata_close() failed.", __func__);
--
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