This fix the mballoc bug when running compile bench.
Instead of using direct division even though the arguments
are 32 bits we retain do_div. This would be needed if we
move to 64 bit logical block number.
Signed-off-by: Aneesh Kumar K.V <[EMAIL PROTECTED]>
---
fs/ext4/mballoc.c | 7 ++++---
1 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index fe7cf9e..8467b3d 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -3089,13 +3089,14 @@ static void ext4_mb_normalize_request(struct
ext4_allocation_context *ac,
}
}
if (wind == 0) {
+ __u64 tstart;
/* file is quite large, we now preallocate with
* the biggest configured window with regart to
* logical offset */
wind = sbi->s_mb_prealloc_table[i - 1];
- start = ac->ac_o_ex.fe_logical;
- do_div(start, wind);
- start = start * wind;
+ tstart = ac->ac_o_ex.fe_logical;
+ do_div(tstart, wind);
+ start = tstart * wind;
}
size = wind;
orig_size = size;
--
1.5.3.4.319.gdd817-dirty
-
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