---

yaml --- r: 132435 b: refs/heads/master c: d33a197 h: refs/heads/master i: 132433: 3c59882 132431: 0d8e57e v: v3
git-mirror · Mar 17, 2009 · 2d83446 · 2d83446
1 parent 9dc1422
commit 2d83446
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Showing 2 changed files with 8 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8d03c7a0c550e7ab24cadcef5e66656bfadec8b9
+refs/heads/master: d33a1976fbee1ee321d6f014333d8f03a39d526c
diff --git a/trunk/fs/ext4/mballoc.c b/trunk/fs/ext4/mballoc.c
@@ -3589,6 +3589,7 @@ static void ext4_mb_put_pa(struct ext4_allocation_context *ac,
 			struct super_block *sb, struct ext4_prealloc_space *pa)
 {
 	ext4_group_t grp;
+	ext4_fsblk_t grp_blk;
 
 	if (!atomic_dec_and_test(&pa->pa_count) || pa->pa_free != 0)
 		return;
@@ -3603,8 +3604,12 @@ static void ext4_mb_put_pa(struct ext4_allocation_context *ac,
 	pa->pa_deleted = 1;
 	spin_unlock(&pa->pa_lock);
 
-	/* -1 is to protect from crossing allocation group */
-	ext4_get_group_no_and_offset(sb, pa->pa_pstart - 1, &grp, NULL);
+	grp_blk = pa->pa_pstart;
+	/* If linear, pa_pstart may be in the next group when pa is used up */
+	if (pa->pa_linear)
+		grp_blk--;
+
+	ext4_get_group_no_and_offset(sb, grp_blk, &grp, NULL);
 
 	/*
 	 * possible race: