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Date:   Tue, 28 Feb 2023 19:42:51 +0800
From:   Kemeng Shi <>
Subject: [PATCH v2 05/20] ext4: correct start of used group pa for debug in ext4_mb_use_group_pa

As we don't correct pa_lstart here, so there is no need to subtract
pa_lstart with consumed len.

Signed-off-by: Kemeng Shi <>
Reviewed-by: Ojaswin Mujoo <>
 fs/ext4/mballoc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 90f765a350ea..31cb6ac1bc47 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4319,7 +4319,7 @@ static void ext4_mb_use_group_pa(struct ext4_allocation_context *ac,
 	 * Other CPUs are prevented from allocating from this pa by lg_mutex
 	mb_debug(ac->ac_sb, "use %u/%u from group pa %p\n",
-		 pa->pa_lstart-len, len, pa);
+		 pa->pa_lstart, len, pa);

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