From 94412a96c4553255bda7a232a349059dd7543338 Mon Sep 17 00:00:00 2001 From: OGAWA Hirofumi Date: Tue, 20 Feb 2007 13:57:55 -0800 Subject: [PATCH] [PATCH] FAT: DIO-write fallback to normal buffered 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 Acked-by: Jan Kara Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/fat/inode.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/fat/inode.c b/fs/fat/inode.c index 761073544217..9bfe607c892e 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -173,10 +173,12 @@ static ssize_t fat_direct_IO(int rw, struct kiocb *iocb, * * 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; } /* -- 2.20.1