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authorMatthew Wilcox <mawilcox@microsoft.com>2018-01-17 12:21:49 -0800
committerDavid Sterba <dsterba@suse.com>2018-01-22 16:08:21 +0100
commit3cbf26da5ec85f1d3177eee534e377c707ed89e1 (patch)
treedeac9284b8923cd1483d44cf47cfa8a62c6a6e27 /fs/btrfs/volumes.h
parent7583d8d088ff2c323b1d4f15b191ca2c23d32558 (diff)
btrfs: Remove unused readahead spinlock
The reada_lock in struct btrfs_device was only initialised, and not actually used. That's good because there's another lock also called reada_lock in the btrfs_fs_info that was quite heavily used. Remove this one. Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/volumes.h')
-rw-r--r--fs/btrfs/volumes.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 15216fed918b..28c28eeadff3 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -137,7 +137,6 @@ struct btrfs_device {
struct rcu_head rcu;
/* readahead state */
- spinlock_t reada_lock;
atomic_t reada_in_flight;
u64 reada_next;
struct reada_zone *reada_curr_zone;