Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit adfb5fb4 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Darrick J. Wong
Browse files

xfs: implement cgroup aware writeback 



Link every newly allocated writeback bio to cgroup pointed to by the
writeback control structure, and charge every byte written back to it.

Tested-by: default avatarStefan Priebe - Profihost AG <s.priebe@profihost.ag>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
parent a2473735

fs/xfs/xfs_aops.c

+3 −1
Original line number Diff line number Diff line
@@ -700,6 +700,7 @@ xfs_alloc_ioend( 
	bio->bi_iter.bi_sector = sector;

	bio->bi_opf = REQ_OP_WRITE | wbc_to_write_flags(wbc);

	bio->bi_write_hint = inode->i_write_hint;

	wbc_init_bio(wbc, bio);



	ioend = container_of(bio, struct xfs_ioend, io_inline_bio);

	INIT_LIST_HEAD(&ioend->io_list);
@@ -727,7 +728,7 @@ xfs_chain_bio( 
	struct bio *new;



	new = bio_alloc(GFP_NOFS, BIO_MAX_PAGES);

	bio_copy_dev(new, prev);

	bio_copy_dev(new, prev);/* also copies over blkcg information */

	new->bi_iter.bi_sector = bio_end_sector(prev);

	new->bi_opf = prev->bi_opf;

	new->bi_write_hint = prev->bi_write_hint;
@@ -782,6 +783,7 @@ xfs_add_to_ioend( 
	}



	wpc->ioend->io_size += len;

	wbc_account_io(wbc, page, len);

}



STATIC void

fs/xfs/xfs_super.c

+2 −0
Original line number Diff line number Diff line
@@ -1676,6 +1676,8 @@ xfs_fs_fill_super( 
	sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits);

	sb->s_max_links = XFS_MAXLINK;

	sb->s_time_gran = 1;

	sb->s_iflags |= SB_I_CGROUPWB;



	set_posix_acl_flag(sb);



	/* version 5 superblocks support inode version counters. */