Commit e9833d87 authored by Jens Axboe's avatar Jens Axboe
Browse files

block: mark bdev files as FMODE_NOWAIT if underlying device supports it 



We set this unconditionally, but it really should be dependent on if
the underlying device is nowait compliant.

Cc: linux-block@vger.kernel.org
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20230509151910.183637-3-axboe@kernel.dk


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent fe34db06

block/fops.c

+4 −1
Original line number Diff line number Diff line
@@ -481,7 +481,7 @@ static int blkdev_open(struct inode *inode, struct file *filp) 
	 * during an unstable branch.

	 */

	filp->f_flags |= O_LARGEFILE;

	filp->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC;

	filp->f_mode |= FMODE_BUF_RASYNC;



	if (filp->f_flags & O_NDELAY)

		filp->f_mode |= FMODE_NDELAY;
@@ -494,6 +494,9 @@ static int blkdev_open(struct inode *inode, struct file *filp) 
	if (IS_ERR(bdev))

		return PTR_ERR(bdev);



	if (bdev_nowait(bdev))

		filp->f_mode |= FMODE_NOWAIT;



	filp->private_data = bdev;

	filp->f_mapping = bdev->bd_inode->i_mapping;

	filp->f_wb_err = filemap_sample_wb_err(filp->f_mapping);