Dave Chinner d808f617ad xfs: Don't issue buffer IO direct from AIL push V2 ... All buffers logged into the AIL are marked as delayed write. When the AIL needs to push the buffer out, it issues an async write of the buffer. This means that IO patterns are dependent on the order of buffers in the AIL. Instead of flushing the buffer, promote the buffer in the delayed write list so that the next time the xfsbufd is run the buffer will be flushed by the xfsbufd. Return the state to the xfsaild that the buffer was promoted so that the xfsaild knows that it needs to cause the xfsbufd to run to flush the buffers that were promoted. Using the xfsbufd for issuing the IO allows us to dispatch all buffer IO from the one queue. This means that we can make much more enlightened decisions on what order to flush buffers to disk as we don't have multiple places issuing IO. Optimisations to xfsbufd will be in a future patch. Version 2 - kill XFS_ITEM_FLUSHING as it is now unused. Signed-off-by: Dave Chinner <david@fromorbit.com> Reviewed-by: Christoph Hellwig <hch@lst.de>		2010-02-02 10:13:42 +11:00
..
linux-2.6	xfs: Don't issue buffer IO direct from AIL push V2	2010-02-02 10:13:42 +11:00
quota	xfs: Don't issue buffer IO direct from AIL push V2	2010-02-02 10:13:42 +11:00
support	xfs: event tracing support	2009-12-14 23:08:16 -06:00
Kconfig	xfs: use generic Posix ACL code	2009-06-10 17:07:47 +02:00
Makefile	xfs: turn off sign warnings	2010-01-26 15:10:15 +11:00
xfs.h	xfs: event tracing support	2009-12-14 23:08:16 -06:00
xfs_acl.h	xfs: convert attr to use unsigned names	2010-01-20 10:47:48 +11:00
xfs_ag.h	xfs: embed the pagb_list array in the perag structure	2010-01-15 15:34:39 -06:00
xfs_alloc.c	xfs: cleanup up xfs_log_force calling conventions	2010-01-21 13:44:49 -06:00
xfs_alloc.h	xfs: event tracing support	2009-12-14 23:08:16 -06:00
xfs_alloc_btree.c	xfs: Don't directly reference m_perag in allocation code	2010-01-15 15:33:12 -06:00
xfs_alloc_btree.h
xfs_arch.h	xfs: use generic Posix ACL code	2009-06-10 17:07:47 +02:00
xfs_attr.c	xfs: remove duplicate buffer flags	2010-01-21 13:44:36 -06:00
xfs_attr.h	xfs: convert attr to use unsigned names	2010-01-20 10:47:48 +11:00
xfs_attr_leaf.c	xfs: remove duplicate buffer flags	2010-01-21 13:44:36 -06:00
xfs_attr_leaf.h
xfs_attr_sf.h	xfs: convert attr to use unsigned names	2010-01-20 10:47:48 +11:00
xfs_bit.c
xfs_bit.h
xfs_bmap.c	xfs: suppress spurious uninitialised var warning in xfs_bmapi()	2010-01-20 10:50:06 +11:00
xfs_bmap.h	xfs: event tracing support	2009-12-14 23:08:16 -06:00
xfs_bmap_btree.c	xfs: make several more functions static	2010-01-15 15:31:38 -06:00
xfs_bmap_btree.h	xfs: make several more functions static	2010-01-15 15:31:38 -06:00
xfs_btree.c	xfs: remove duplicate buffer flags	2010-01-21 13:44:36 -06:00
xfs_btree.h	xfs: add more statics & drop some unused functions	2009-08-31 14:46:20 -05:00
xfs_btree_trace.c
xfs_btree_trace.h	xfs: event tracing support	2009-12-14 23:08:16 -06:00
xfs_buf_item.c	xfs: Don't issue buffer IO direct from AIL push V2	2010-02-02 10:13:42 +11:00
xfs_buf_item.h	xfs: event tracing support	2009-12-14 23:08:16 -06:00
xfs_da_btree.c	xfs: convert dirnameops to unsigned char names	2010-01-20 10:47:17 +11:00
xfs_da_btree.h	xfs: convert dirnameops to unsigned char names	2010-01-20 10:47:17 +11:00
xfs_dfrag.c	xfs: clean up inconsistent variable naming in xfs_swap_extent	2010-01-15 15:31:23 -06:00
xfs_dfrag.h	xfs: clean up inconsistent variable naming in xfs_swap_extent	2010-01-15 15:31:23 -06:00
xfs_dinode.h
xfs_dir2.c	xfs: clean up sign warnings in dir2 code	2010-01-20 10:48:05 +11:00
xfs_dir2.h	xfs: make xfs_dir_cilookup_result use unsigned char	2010-01-20 10:47:25 +11:00
xfs_dir2_block.c	xfs: clean up sign warnings in dir2 code	2010-01-20 10:48:05 +11:00
xfs_dir2_block.h
xfs_dir2_data.c
xfs_dir2_data.h
xfs_dir2_leaf.c	xfs: clean up sign warnings in dir2 code	2010-01-20 10:48:05 +11:00
xfs_dir2_leaf.h
xfs_dir2_node.c	xfs: make several more functions static	2010-01-15 15:31:38 -06:00
xfs_dir2_node.h	xfs: make several more functions static	2010-01-15 15:31:38 -06:00
xfs_dir2_sf.c	xfs: clean up sign warnings in dir2 code	2010-01-20 10:48:05 +11:00
xfs_dir2_sf.h
xfs_dmapi.h
xfs_dmops.c
xfs_error.c
xfs_error.h
xfs_extfree_item.c	xfs: kill XLOG_VEC_SET_TYPE	2010-01-21 13:44:43 -06:00
xfs_extfree_item.h
xfs_filestream.c	xfs: Kill filestreams cache flush	2010-01-15 15:34:22 -06:00
xfs_filestream.h	xfs: Kill filestreams cache flush	2010-01-15 15:34:22 -06:00
xfs_fs.h	trivial: fix typo "for for" in multiple files	2009-09-21 15:14:54 +02:00
xfs_fsops.c	xfs: Replace per-ag array with a radix tree	2010-01-15 15:33:52 -06:00
xfs_fsops.h
xfs_ialloc.c	xfs: remove duplicate buffer flags	2010-01-21 13:44:36 -06:00
xfs_ialloc.h	xfs: rationalize xfs_inobt_lookup*	2009-09-01 12:45:39 -05:00
xfs_ialloc_btree.c
xfs_ialloc_btree.h
xfs_iget.c	xfs: rename xfs_get_perag	2010-01-15 15:33:02 -06:00
xfs_inode.c	xfs: Use delayed write for inodes rather than async V2	2010-02-06 12:39:36 +11:00
xfs_inode.h	xfs: Use delayed write for inodes rather than async V2	2010-02-06 12:39:36 +11:00
xfs_inode_item.c	xfs: Don't issue buffer IO direct from AIL push V2	2010-02-02 10:13:42 +11:00
xfs_inode_item.h	xfs: Don't issue buffer IO direct from AIL push V2	2010-02-02 10:13:42 +11:00
xfs_inum.h	xfs: remove XFS_INO64_OFFSET	2009-08-31 14:46:22 -05:00
xfs_iomap.c	xfs: event tracing support	2009-12-14 23:08:16 -06:00
xfs_iomap.h	xfs: event tracing support	2009-12-14 23:08:16 -06:00
xfs_itable.c	xfs: replace KM_LARGE with explicit vmalloc use	2010-01-21 13:44:56 -06:00
xfs_itable.h	xfs: add more statics & drop some unused functions	2009-08-31 14:46:20 -05:00
xfs_log.c	xfs: cleanup up xfs_log_force calling conventions	2010-01-21 13:44:49 -06:00
xfs_log.h	xfs: cleanup up xfs_log_force calling conventions	2010-01-21 13:44:49 -06:00
xfs_log_priv.h	xfs: make several more functions static	2010-01-15 15:31:38 -06:00
xfs_log_recover.c	xfs: cleanup up xfs_log_force calling conventions	2010-01-21 13:44:49 -06:00
xfs_log_recover.h	xfs: Use list_heads for log recovery item lists	2010-01-15 15:31:51 -06:00
xfs_mount.c	xfs: Use delayed write for inodes rather than async V2	2010-02-06 12:39:36 +11:00
xfs_mount.h	xfs: more reserved blocks fixups	2010-02-08 17:41:48 -06:00
xfs_mru_cache.c	xfs: Kill filestreams cache flush	2010-01-15 15:34:22 -06:00
xfs_mru_cache.h	xfs: Kill filestreams cache flush	2010-01-15 15:34:22 -06:00
xfs_quota.h	xfs: kill XFS_QMOPT_ASYNC	2010-01-21 13:44:10 -06:00
xfs_refcache.h
xfs_rename.c	xfs: event tracing support	2009-12-14 23:08:16 -06:00
xfs_rtalloc.c	xfs: fix missing error check in xfs_rtfree_range	2010-01-15 13:46:19 -06:00
xfs_rtalloc.h
xfs_rw.c	xfs: move more buffer helpers into xfs_buf.c	2010-01-15 15:35:17 -06:00
xfs_rw.h	xfs: move more buffer helpers into xfs_buf.c	2010-01-15 15:35:17 -06:00
xfs_sb.h
xfs_trans.c	xfs: cleanup up xfs_log_force calling conventions	2010-01-21 13:44:49 -06:00
xfs_trans.h	xfs: Don't issue buffer IO direct from AIL push V2	2010-02-02 10:13:42 +11:00
xfs_trans_ail.c	xfs: Don't issue buffer IO direct from AIL push V2	2010-02-02 10:13:42 +11:00
xfs_trans_buf.c	xfs: remove duplicate buffer flags	2010-01-21 13:44:36 -06:00
xfs_trans_extfree.c
xfs_trans_inode.c	xfs: simplify xfs_trans_iget	2009-09-01 12:46:16 -05:00
xfs_trans_item.c
xfs_trans_priv.h
xfs_trans_space.h
xfs_types.h	xfs: directory names are unsigned	2010-01-20 10:44:58 +11:00
xfs_utils.c	xfs: kill xfs_qmops	2009-06-08 15:33:32 +02:00
xfs_utils.h
xfs_vnodeops.c	xfs: cleanup up xfs_log_force calling conventions	2010-01-21 13:44:49 -06:00
xfs_vnodeops.h	xfs: convert attr to use unsigned names	2010-01-20 10:47:48 +11:00