On 1.02.20 г. 0:36 ч., Josef Bacik wrote: > The original iteration of flushing had us flushing delalloc and then > checking to see if we could make our reservation, thus we were very > careful about how many pages we would flush at once. > > But now that everything is async and we satisfy tickets as the space > becomes available we don't have to keep track of any of this, simply try > and flush the number of dirty inodes we may have in order to reclaim > space to make our reservation. This cleans up our delalloc flushing > significantly. > > The async_pages stuff is dropped because btrfs_start_delalloc_roots() > handles the case that we generate async extents for us, so we no longer > require this extra logic. > > Signed-off-by: Josef Bacik <josef@xxxxxxxxxxxxxx> This change really equates to calling ->writepages() for every delalloc inode. The old code in btrfs_writeback_inodes_sb_nr was more or less doing the same. So : Reviewed-by: Nikolay Borisov <nborisov@xxxxxxxx>
