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direct-io: Remove unused DIO_ASYNC_EXTEND flag 

This flag was added by 6039257378 ("direct-io: add flag to allow aio
writes beyond i_size") to support XFS. However, with the rework of
XFS' DIO's path to use iomap in acdda3aae1 ("xfs: use iomap_dio_rw")
it became redundant. So let's remove it.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Nikolay Borisov 2018-02-23 13:45:28 +02:00 committed by Jens Axboe
parent fc9de9a52e
commit c8f4c36f81
2 changed files with 1 additions and 5 deletions
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3
fs/direct-io.c
View File

@ -1252,8 +1252,7 @@ do_blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
*/ */
if (is_sync_kiocb(iocb)) if (is_sync_kiocb(iocb))
dio->is_async = false; dio->is_async = false;
else if (!(dio->flags & DIO_ASYNC_EXTEND) && else if (iov_iter_rw(iter) == WRITE && end > i_size_read(inode))
iov_iter_rw(iter) == WRITE && end > i_size_read(inode))
dio->is_async = false; dio->is_async = false;
else else
dio->is_async = true; dio->is_async = true;

3
include/linux/fs.h
View File

@ -2977,9 +2977,6 @@ enum {
/* filesystem does not support filling holes */ /* filesystem does not support filling holes */
DIO_SKIP_HOLES = 0x02, DIO_SKIP_HOLES = 0x02,
/* filesystem can handle aio writes beyond i_size */
DIO_ASYNC_EXTEND = 0x04,
/* inode/fs/bdev does not need truncate protection */ /* inode/fs/bdev does not need truncate protection */
DIO_SKIP_DIO_COUNT = 0x08, DIO_SKIP_DIO_COUNT = 0x08,
}; };