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[6/6] btrfs: remove stale comment about locking at btrfs_search_slot()

Message ID a2a4e75a7ec612acb6223b408e4722d62dd0cd22.1638440535.git.fdmanana@suse.com (mailing list archive)
State New, archived
Headers show
Series btrfs: optimize btree insertions and some cleanups | expand

Commit Message

Filipe Manana Dec. 2, 2021, 10:30 a.m. UTC 
From: Filipe Manana <fdmanana@suse.com>

The comment refers to the old extent buffer locking code, where we used to
have custom locks that had blocking and spinning behaviour modes. That is
not the case anymore, since we have transitioned to rw semaphores, so the
comment does not offer any value anymore. Remove it.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
---
 fs/btrfs/ctree.c | 4 ----
 1 file changed, 4 deletions(-)
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Patch

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index bcf99c787d68..fdd286ab1259 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -1963,10 +1963,6 @@  int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root *root,
 		}
 cow_done:
 		p->nodes[level] = b;
-		/*
-		 * Leave path with blocking locks to avoid massive
-		 * lock context switch, this is made on purpose.
-		 */
 
 		/*
 		 * we have a lock on b and as long as we aren't changing