btrfs: remove redundant stop_loop variable in scrub_stripe()

The variable stop_loop was originally introduced in commit 625f1c8dc66d7
("Btrfs: improve the loop of scrub_stripe"). It was initialized to 0 in
commit 3b080b2564287 ("Btrfs: scrub raid56 stripes in the right way").
However, in a later commit 18d30ab961497 ("btrfs: scrub: use
scrub_simple_mirror() to handle RAID56 data stripe scrub"), the code
that modified stop_loop was removed, making the variable redundant.

Currently, stop_loop is only initialized with 0 and is never used or
modified within the scrub_stripe() function. As a result, this patch
removes the stop_loop variable to clean up the code and eliminate
unnecessary redundancy.

This change has no impact on functionality, as stop_loop was never
utilized in any meaningful way in the final version of the code.

Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Riyan Dhiman <riyandhiman14@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 3a34274280746c56ac926166a0c16a2485ea5646..43431065d9818910cd557536cacc1a9ffadfe954 100644 (file)
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -2256,7 +2256,6 @@ static noinline_for_stack int scrub_stripe(struct scrub_ctx *sctx,
        /* Offset inside the chunk */
        u64 offset;
        u64 stripe_logical;
-       int stop_loop = 0;
 
        /* Extent_path should be released by now. */
        ASSERT(sctx->extent_path.nodes[0] == NULL);
@@ -2370,14 +2369,8 @@ next:
                logical += increment;
                physical += BTRFS_STRIPE_LEN;
                spin_lock(&sctx->stat_lock);
-               if (stop_loop)
-                       sctx->stat.last_physical =
-                               map->stripes[stripe_index].physical + dev_stripe_len;
-               else
-                       sctx->stat.last_physical = physical;
+               sctx->stat.last_physical = physical;
                spin_unlock(&sctx->stat_lock);
-               if (stop_loop)
-                       break;
        }
 out:
        ret2 = flush_scrub_stripes(sctx);