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bdev: improve bdev blockcnt notify

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A small improvement in blockcnt change.
If size == bdev->blockcnt just return.

Change-Id: I507a3e5d5fa0f3f17383afa08c47c0bda48be52c
Signed-off-by: Jin Yu <jin.yu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5922
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This commit is contained in:
Jin Yu 2021-01-15 20:11:48 +08:00 committed by Tomasz Zawadzki
parent ec1494e92b
commit e6493c81f3
1 changed files with 4 additions and 0 deletions
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4
lib/bdev/bdev.c
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@ -3450,6 +3450,10 @@ spdk_bdev_notify_blockcnt_change(struct spdk_bdev *bdev, uint64_t size)
struct spdk_bdev_desc *desc;
int ret;
if (size == bdev->blockcnt) {
return 0;
}
pthread_mutex_lock(&bdev->internal.mutex);
/* bdev has open descriptors */