[PATCH 1/4] btrfs: fix 64bit division in btrfs_insert_striped_mirrored_raid_extents

Johannes Thumshirn
2023-09-18T15:43:03Z

Fix modpost error due to 64bit division on 32bit systems in
btrfs_insert_striped_mirrored_raid_extents.

Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
---
fs/btrfs/raid-stripe-tree.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/btrfs/raid-stripe-tree.c b/fs/btrfs/raid-stripe-tree.c
index 85e8e389990f..0c0e620ed8b9 100644
--- a/fs/btrfs/raid-stripe-tree.c
+++ b/fs/btrfs/raid-stripe-tree.c
@@ -148,10 +148,10 @@ static int btrfs_insert_striped_mirrored_raid_extents(
{
struct btrfs_io_context *bioc;
struct btrfs_io_context *rbioc;
- const int nstripes = list_count_nodes(&ordered->bioc_list);
- const int index = btrfs_bg_flags_to_raid_index(map_type);
- const int substripes = btrfs_raid_array[index].sub_stripes;
- const int max_stripes = trans->fs_info->fs_devices->rw_devices / substripes;
+ const size_t nstripes = list_count_nodes(&ordered->bioc_list);
+ const enum btrfs_raid_types index = btrfs_bg_flags_to_raid_index(map_type);
+ const u8 substripes = btrfs_raid_array[index].sub_stripes;
+ const int max_stripes = div_u64(trans->fs_info->fs_devices->rw_devices, substripes);
int left = nstripes;
int i;
int ret = 0;

--
2.41.0