The patch titled
Subject: fat-add-fitrim-ioctl-for-fat-file-system-fix
has been added to the -mm tree. Its filename is
fat-add-fitrim-ioctl-for-fat-file-system-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/fat-add-fitrim-ioctl-for-fat-file-system-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/fat-add-fitrim-ioctl-for-fat-file-system-fix.patch
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The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Wentao Wang <witallwang@xxxxxxxxx>
Subject: fat-add-fitrim-ioctl-for-fat-file-system-fix
If we keep "trimmed" as an u32, there will be a potential shift wrap.
It would be a problem on a larger than 4GB partition with
FAT32. Though most tools who call this ioctl would ignore this value,
it would be great to fix it.
Link: http://lkml.kernel.org/r/87h8l37hub.fsf@xxxxxxxxxxxxxxxxxx
Signed-off-by: Wentao Wang <witallwang@xxxxxxxxx>
Signed-off-by: OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/fat/fatent.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN fs/fat/fatent.c~fat-add-fitrim-ioctl-for-fat-file-system-fix fs/fat/fatent.c
--- a/fs/fat/fatent.c~fat-add-fitrim-ioctl-for-fat-file-system-fix
+++ a/fs/fat/fatent.c
@@ -705,8 +705,8 @@ int fat_trim_fs(struct inode *inode, str
struct msdos_sb_info *sbi = MSDOS_SB(sb);
const struct fatent_operations *ops = sbi->fatent_ops;
struct fat_entry fatent;
- u64 ent_start, ent_end, minlen;
- u32 free = 0, trimmed = 0;
+ u64 ent_start, ent_end, minlen, trimmed = 0;
+ u32 free = 0;
unsigned long reada_blocks, reada_mask, cur_block = 0;
int err = 0;
_
Patches currently in -mm which might be from witallwang@xxxxxxxxx are
fat-add-fitrim-ioctl-for-fat-file-system.patch
fat-add-fitrim-ioctl-for-fat-file-system-fix.patch
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