From 17b7d63f7ed10376e762fdfadbc65da6687d569a Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Fri, 27 Jul 2012 15:07:57 +0100 Subject: [PATCH] dm thin: clean up compiler warning Clean up "warning: dubious: !x & y". Also make it clear that __snapshotted_since() returns a bool and that dm_thin_lookup_result's 'shared' member is a flag. Signed-off-by: Mike Snitzer Signed-off-by: Alasdair G Kergon --- drivers/md/dm-thin-metadata.c | 2 +- drivers/md/dm-thin-metadata.h | 2 +- drivers/md/dm-thin.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c index 3e2907f..c858931 100644 --- a/drivers/md/dm-thin-metadata.c +++ b/drivers/md/dm-thin-metadata.c @@ -1262,7 +1262,7 @@ dm_thin_id dm_thin_dev_id(struct dm_thin_device *td) return td->id; } -static int __snapshotted_since(struct dm_thin_device *td, uint32_t time) +static bool __snapshotted_since(struct dm_thin_device *td, uint32_t time) { return td->snapshotted_time > time; } diff --git a/drivers/md/dm-thin-metadata.h b/drivers/md/dm-thin-metadata.h index b88918c..7b47c0a 100644 --- a/drivers/md/dm-thin-metadata.h +++ b/drivers/md/dm-thin-metadata.h @@ -119,7 +119,7 @@ dm_thin_id dm_thin_dev_id(struct dm_thin_device *td); struct dm_thin_lookup_result { dm_block_t block; - int shared; + unsigned shared:1; }; /* diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index 18f87b0..0bb9e64 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -1218,7 +1218,7 @@ static void process_discard(struct thin_c *tc, struct bio *bio) */ m = get_next_mapping(pool); m->tc = tc; - m->pass_discard = (!lookup_result.shared) & pool->pf.discard_passdown; + m->pass_discard = (!lookup_result.shared) && pool->pf.discard_passdown; m->virt_block = block; m->data_block = lookup_result.block; m->cell = cell; -- 2.7.4