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[3/3] btrfs: remove useless used space increment during space reservation

Message ID 221b489c8d0f2204a77517f3fb440b635914457a.1662636489.git.fdmanana@suse.com (mailing list archive)
State New, archived
Headers show
Series btrfs: fix a couple of hangs during unmount caused by races | expand

Commit Message

Filipe Manana Sept. 8, 2022, 11:31 a.m. UTC 
From: Filipe Manana <fdmanana@suse.com>

At space-info.c:__reserve_bytes(), we increment the 'used' variable, but
then we don't use the variable anymore, making the increment pointless.
The increment became useless with commit 2e294c60497f29 ("btrfs: simplify
the logic in need_preemptive_flushing"), so just remove it.

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

diff --git a/fs/btrfs/space-info.c b/fs/btrfs/space-info.c
index 477e57ace48d..30a256c8c2ea 100644
--- a/fs/btrfs/space-info.c
+++ b/fs/btrfs/space-info.c
@@ -1666,7 +1666,6 @@  static int __reserve_bytes(struct btrfs_fs_info *fs_info,
 				      &space_info->priority_tickets);
 		}
 	} else if (!ret && space_info->flags & BTRFS_BLOCK_GROUP_METADATA) {
-		used += orig_bytes;
 		/*
 		 * We will do the space reservation dance during log replay,
 		 * which means we won't have fs_info->fs_root set, so don't do