On 12/30, Chao Yu wrote: > On 2021/12/3 5:28, Jaegeuk Kim wrote: > > On 12/02, Jaegeuk Kim wrote: > > > On 12/02, Eric Biggers wrote: > > > > On Thu, Dec 02, 2021 at 11:00:47AM -0800, Jaegeuk Kim wrote: > > > > > On 12/02, Jaegeuk Kim wrote: > > > > > > On 12/02, Eric Biggers wrote: > > > > > > > On Thu, Dec 02, 2021 at 10:04:11PM +0800, Chao Yu wrote: > > > > > > > > On 2021/12/2 12:15, Eric Biggers wrote: > > > > > > > > > On Thu, Dec 02, 2021 at 11:10:41AM +0800, Chao Yu wrote: > > > > > > > > > > Why not relocating this check before f2fs_map_blocks()? > > > > > > > > > > > > > > > > Wait, it supports DIO in multi-device image after commit > > > > > > > > 71f2c8206202 > > > > > > > > ("f2fs: multidevice: support direct IO"), how about > > > > > > > > checking with f2fs_allow_multi_device_dio()? > > > > > > > > > > > > > > > > Thanks, > > > > > > > > > > > > > > > > > > > > > > Okay, that was not the case when I sent this patch originally. > > > > > > > We'll need to > > > > > > > update this to support multiple devices. > > > > > > > > > > > > Chao/Eric, does this make sense? > > > > > > > > > > > > --- a/fs/f2fs/data.c > > > > > > +++ b/fs/f2fs/data.c > > > > > > @@ -4070,11 +4070,10 @@ static int f2fs_iomap_begin(struct inode > > > > > > *inode, loff_t offset, loff_t length, > > > > > > } > > > > > > if > > > > > > (WARN_ON_ONCE(!__is_valid_data_blkaddr(map.m_pblk))) > > > > > > return -EINVAL; > > > > > > - iomap->addr = blks_to_bytes(inode, map.m_pblk); > > > > > > > > > > > > - if > > > > > > (WARN_ON_ONCE(f2fs_is_multi_device(F2FS_I_SB(inode)))) > > > > > > - return -EINVAL; > > > > > > - iomap->bdev = inode->i_sb->s_bdev; > > > > > > + iomap->bdev = map->m_multidev_dio ? map.m_bdev : > > > > > > > > > > correction: map.m_multidev_dio > > > > > > > > > > > > > I guess so, but why doesn't f2fs_map_blocks() just always set m_bdev to > > > > the > > > > correct block device? What is the point of m_multidev_dio? > > > > > > It seems we can simply assign iomap->bdev = map.m_bdev, and remove > > > map->m_multidev_dio. > > > > Ok, it was used in previous get_block flow, but I think it'd be worth to > > keep it > > to show by f2fs_map_blocks tracepoint. > > The last version wasn't sent into mailing list?
No, will post it again soon. > > Thanks, > > > > > > > > > > > > > > - Eric > > > > > > > > > _______________________________________________ > > > Linux-f2fs-devel mailing list > > > Linux-f2fs-devel@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel > > > > > > _______________________________________________ > > Linux-f2fs-devel mailing list > > Linux-f2fs-devel@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel