The patch titled
FAT: DIO-write fallback to normal buffered
has been added to the -mm tree. Its filename is
fat-dio-write-fallback-to-normal-buffered.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: FAT: DIO-write fallback to normal buffered
From: OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>
If the DIO write on FAT is expanding the size, it will be fail by -EINVAL,
because FAT can't handle it now.
This patch fallback it to the normal buffered-write and would return
success.
Signed-off-by: OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/fat/inode.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff -puN fs/fat/inode.c~fat-dio-write-fallback-to-normal-buffered fs/fat/inode.c
--- a/fs/fat/inode.c~fat-dio-write-fallback-to-normal-buffered
+++ a/fs/fat/inode.c
@@ -173,10 +173,12 @@ static ssize_t fat_direct_IO(int rw, str
*
* But we must fill the remaining area or hole by nul for
* updating ->mmu_private.
+ *
+ * Return 0, and fallback to normal buffered write.
*/
loff_t size = offset + iov_length(iov, nr_segs);
if (MSDOS_I(inode)->mmu_private < size)
- return -EINVAL;
+ return 0;
}
/*
_
Patches currently in -mm which might be from hirofumi@xxxxxxxxxxxxxxxxxx are
origin.patch
fix-the-reproducible-oops-in-scsi.patch
fat-dio-write-fallback-to-normal-buffered.patch
-
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