Currently we might omit to discard the last block in the group (max)
because of off-by-one condition error. This commit fixes the condition
so we always discard the whole range if possible.
Signed-off-by: Lukas Czerner <lczerner@xxxxxxxxxx>
---
fs/ext3/balloc.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
index e3a8d9e..997da27 100644
--- a/fs/ext3/balloc.c
+++ b/fs/ext3/balloc.c
@@ -1970,7 +1970,7 @@ static ext3_grpblk_t ext3_trim_all_free(struct super_block *sb,
sbi = EXT3_SB(sb);
/* Walk through the whole group */
- while (start < max) {
+ while (start <= max) {
start = bitmap_search_next_usable_block(start, bitmap_bh, max);
if (start < 0)
break;
@@ -1980,7 +1980,7 @@ static ext3_grpblk_t ext3_trim_all_free(struct super_block *sb,
* Allocate contiguous free extents by setting bits in the
* block bitmap
*/
- while (next < max
+ while (next <= max
&& claim_block(sb_bgl_lock(sbi, group),
next, bitmap_bh)) {
next++;
--
1.7.4.4
--
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