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authorDavid Sterba <dsterba@suse.com>2019-05-02 16:51:53 +0200
committerDavid Sterba <dsterba@suse.com>2019-07-02 12:30:47 +0200
commitf3dc24c52a28c700e35757dce7b38456888071e1 (patch)
treea7f9cac885813362dfdeac6dc2165e961031da71 /fs/btrfs/locking.c
parent06297d8cefcaa2029c4cb71b79285d2bfff06d4d (diff)
btrfs: switch extent_buffer spinning_writers from atomic to int
The spinning_writers is either 0 or 1 and always updated under the lock, so we don't need the atomic_t semantics. Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/locking.c')
-rw-r--r--fs/btrfs/locking.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/btrfs/locking.c b/fs/btrfs/locking.c
index 5feb01147e19..270667627977 100644
--- a/fs/btrfs/locking.c
+++ b/fs/btrfs/locking.c
@@ -15,19 +15,19 @@
#ifdef CONFIG_BTRFS_DEBUG
static void btrfs_assert_spinning_writers_get(struct extent_buffer *eb)
{
- WARN_ON(atomic_read(&eb->spinning_writers));
- atomic_inc(&eb->spinning_writers);
+ WARN_ON(eb->spinning_writers);
+ eb->spinning_writers++;
}
static void btrfs_assert_spinning_writers_put(struct extent_buffer *eb)
{
- WARN_ON(atomic_read(&eb->spinning_writers) != 1);
- atomic_dec(&eb->spinning_writers);
+ WARN_ON(eb->spinning_writers != 1);
+ eb->spinning_writers--;
}
static void btrfs_assert_no_spinning_writers(struct extent_buffer *eb)
{
- WARN_ON(atomic_read(&eb->spinning_writers));
+ WARN_ON(eb->spinning_writers);
}
static void btrfs_assert_spinning_readers_get(struct extent_buffer *eb)