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authorMikulas Patocka <mpatocka@redhat.com>2019-09-12 10:44:44 +0200
committerMike Snitzer <snitzer@redhat.com>2019-09-13 10:42:27 -0400
commit26d2ef0cd0f7c12aa331b502c1c1460b85ebd04f (patch)
treee25b635d574645d3ea754e931a8081fb7edc574e /drivers/md/dm-bufio.c
parent7431b7835f554f8608b415a02cf3c3f086309e02 (diff)
downloadlinux-26d2ef0cd0f7c12aa331b502c1c1460b85ebd04f.tar.gz
dm bufio: call adjust_total_allocated from __link_buffer and __unlink_buffer
Move the call to adjust_total_allocated() to __link_buffer() and
__unlink_buffer() so that only used buffers are counted.  Reserved
buffers are not.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-bufio.c')
-rw-r--r--drivers/md/dm-bufio.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
index 2a48ea3f1b30..d3c86bf00075 100644
--- a/drivers/md/dm-bufio.c
+++ b/drivers/md/dm-bufio.c
@@ -431,8 +431,6 @@ static struct dm_buffer *alloc_buffer(struct dm_bufio_client *c, gfp_t gfp_mask)
 		return NULL;
 	}
 
-	adjust_total_allocated(b->data_mode, (long)c->block_size);
-
 #ifdef CONFIG_DM_DEBUG_BLOCK_STACK_TRACING
 	b->stack_len = 0;
 #endif
@@ -446,8 +444,6 @@ static void free_buffer(struct dm_buffer *b)
 {
 	struct dm_bufio_client *c = b->c;
 
-	adjust_total_allocated(b->data_mode, -(long)c->block_size);
-
 	free_buffer_data(c, b->data, b->data_mode);
 	kmem_cache_free(c->slab_buffer, b);
 }
@@ -465,6 +461,8 @@ static void __link_buffer(struct dm_buffer *b, sector_t block, int dirty)
 	list_add(&b->lru_list, &c->lru[dirty]);
 	__insert(b->c, b);
 	b->last_accessed = jiffies;
+
+	adjust_total_allocated(b->data_mode, (long)c->block_size);
 }
 
 /*
@@ -479,6 +477,8 @@ static void __unlink_buffer(struct dm_buffer *b)
 	c->n_buffers[b->list_mode]--;
 	__remove(b->c, b);
 	list_del(&b->lru_list);
+
+	adjust_total_allocated(b->data_mode, -(long)c->block_size);
 }
 
 /*