[Devel] [PATCH RHEL9 COMMIT] dm-ploop: drop old_size variable in ploop_allocate_cluster()

[Konstantin Khorenko]

The commit is pushed to "branch-rh9-5.14.0-427.55.1.vz9.82.x-ovz" and will appear at git at bitbucket.org:openvz/vzkernel.git
after rh9-5.14.0-427.55.1.vz9.82.3
------>
commit c78adb2e32ae8398c9fe495388f397ab228f2ecb
Author: Pavel Tikhomirov <ptikhomirov at virtuozzo.com>
Date:   Mon Jul 7 10:36:36 2025 +0200

    dm-ploop: drop old_size variable in ploop_allocate_cluster()
    
    Redundant variable.
    
    https://virtuozzo.atlassian.net/browse/VSTOR-108868
    Co-developed-by: Andrey Zhadchenko <andrey.zhadchenko at virtuozzo.com>
    Signed-off-by: Pavel Tikhomirov <ptikhomirov at virtuozzo.com>
    
    Feature: dm-ploop: ploop target driver
---
 drivers/md/dm-ploop-map.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/md/dm-ploop-map.c b/drivers/md/dm-ploop-map.c
index 93549cca5980c..2df5f38b9e9b3 100644
--- a/drivers/md/dm-ploop-map.c
+++ b/drivers/md/dm-ploop-map.c
@@ -1259,7 +1259,7 @@ static int ploop_allocate_cluster(struct ploop *ploop, u32 *dst_clu, struct file
 {
 	struct ploop_delta *top = ploop_top_delta(ploop);
 	u32 clu_size = CLU_SIZE(ploop);
-	loff_t off, pos, end, old_size;
+	loff_t off, pos, end;
 	unsigned long flags;
 	int ret;
 	int retry_cnt = 0;
@@ -1278,11 +1278,10 @@ static int ploop_allocate_cluster(struct ploop *ploop, u32 *dst_clu, struct file
 	 */
 	ploop_hole_clear_bit(*dst_clu, ploop);
 
-	old_size = top->file_size;
 	prealloc_start = top->file_preallocated_area_start;
 	pos = CLU_TO_POS(ploop, *dst_clu);
 	end = pos + clu_size;
-	off = min_t(loff_t, old_size, end);
+	off = min_t(loff_t, top->file_size, end);
 	spin_unlock_irqrestore(&ploop->bat_lock, flags);
 
 	if (pos < prealloc_start) {
@@ -1316,8 +1315,7 @@ static int ploop_allocate_cluster(struct ploop *ploop, u32 *dst_clu, struct file
 retry_alloc:
 	spin_lock_irqsave(&ploop->bat_lock, flags);
 	/* size can change from parallel alloc */
-	old_size = top->file_size;
-	if (end > old_size) {
+	if (end > top->file_size) {
 		ploop_req_prealloc(ploop, PREALLOC_SIZE);
 		spin_unlock_irqrestore(&ploop->bat_lock, flags);