diff options
| author | Minchan Kim <minchan@kernel.org> | 2017-05-03 14:55:53 -0700 |
|---|---|---|
| committer | Peter Kalauskas <peskal@google.com> | 2018-08-23 12:00:18 -0700 |
| commit | 866e69985296ea12876d147aac01a9bad6e5627e (patch) | |
| tree | 644384699083debdb2335b2cea9d0f8708a13700 | |
| parent | 70756ad7673bc65848c28172628319dddbf12cb6 (diff) | |
UPSTREAM: zram: use zram_free_page instead of open-coded
The zram_free_page already handles NULL handle case and same page so use
it to reduce error probability. (Acutaully, I made a mistake when I
handled same page feature)
Link: http://lkml.kernel.org/r/1492052365-16169-7-git-send-email-minchan@kernel.org
Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 302128dce142d780417aa548bfd7ef4dfb89fa80)
Signed-off-by: Peter Kalauskas <peskal@google.com>
Bug: 112488418
Change-Id: Ie38c52dfb1959377936b7cd9158ad1b5a02219bd
| -rw-r--r-- | drivers/block/zram/zram_drv.c | 17 |
1 files changed, 3 insertions, 14 deletions
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index cde2129304d6..2dbd39781254 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -479,17 +479,8 @@ static void zram_meta_free(struct zram *zram, u64 disksize) size_t index; /* Free all pages that are still in this zram device */ - for (index = 0; index < num_pages; index++) { - unsigned long handle = zram_get_handle(zram, index); - /* - * No memory is allocated for same element filled pages. - * Simply clear same page flag. - */ - if (!handle || zram_test_flag(zram, index, ZRAM_SAME)) - continue; - - zs_free(zram->mem_pool, handle); - } + for (index = 0; index < num_pages; index++) + zram_free_page(zram, index); zs_destroy_pool(zram->mem_pool); vfree(zram->table); @@ -972,9 +963,6 @@ static void zram_reset_device(struct zram *zram) comp = zram->comp; disksize = zram->disksize; - - /* Reset stats */ - memset(&zram->stats, 0, sizeof(zram->stats)); zram->disksize = 0; set_capacity(zram->disk, 0); @@ -983,6 +971,7 @@ static void zram_reset_device(struct zram *zram) up_write(&zram->init_lock); /* I/O operation under all of CPU are done so let's free */ zram_meta_free(zram, disksize); + memset(&zram->stats, 0, sizeof(zram->stats)); zcomp_destroy(comp); } |