Christoph Hellwig 209fb87a25 xfs simplify and speed up direct I/O completions ... Our current handling of direct I/O completions is rather suboptimal, because we defer it to a workqueue more often than needed, and we perform a much to aggressive flush of the workqueue in case unwritten extent conversions happen. This patch changes the direct I/O reads to not even use a completion handler, as we don't bother to use it at all, and to perform the unwritten extent conversions in caller context for synchronous direct I/O. For a small I/O size direct I/O workload on a consumer grade SSD, such as the untar of a kernel tree inside qemu this patch gives speedups of about 5%. Getting us much closer to the speed of a native block device, or a fully allocated XFS file. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Alex Elder <aelder@sgi.com>		2010-07-26 16:09:19 -05:00
..
linux-2.6	xfs simplify and speed up direct I/O completions	2010-07-26 16:09:19 -05:00
quota	xfs: simplify xfs_truncate_file	2010-07-26 13:16:52 -05:00
support	xfs: drop dmapi hooks	2010-07-26 13:16:33 -05:00
Kconfig
Makefile	xfs: simplify log item descriptor tracking	2010-07-26 13:16:34 -05:00
xfs_acl.h
xfs_ag.h	xfs: fix access to upper inodes without inode64	2010-05-28 15:19:56 -05:00
xfs_alloc_btree.c	xfs: remove unneeded #include statements	2010-07-26 13:16:33 -05:00
xfs_alloc_btree.h
xfs_alloc.c	xfs: fix gcc 4.6 set but not read and unused statement warnings	2010-07-26 13:16:51 -05:00
xfs_alloc.h	xfs: do not use emums for flags used in tracing	2010-07-26 13:16:43 -05:00
xfs_arch.h
xfs_attr_leaf.c	xfs: remove unused delta tracking code in xfs_bmapi	2010-07-26 13:16:39 -05:00
xfs_attr_leaf.h
xfs_attr_sf.h
xfs_attr.c	xfs: remove unused delta tracking code in xfs_bmapi	2010-07-26 13:16:39 -05:00
xfs_attr.h
xfs_bit.c
xfs_bit.h
xfs_bmap_btree.c	xfs: remove unneeded #include statements	2010-07-26 13:16:33 -05:00
xfs_bmap_btree.h
xfs_bmap.c	xfs: clean up xfs_bmap_get_bp	2010-07-26 13:16:53 -05:00
xfs_bmap.h	xfs: remove unused delta tracking code in xfs_bmapi	2010-07-26 13:16:39 -05:00
xfs_btree_trace.c
xfs_btree_trace.h
xfs_btree.c	xfs: remove unneeded #include statements	2010-07-26 13:16:33 -05:00
xfs_btree.h
xfs_buf_item.c	xfs: kill the b_strat callback in xfs_buf	2010-07-26 13:16:52 -05:00
xfs_buf_item.h	xfs: give li_cb callbacks the correct prototype	2010-07-26 13:16:35 -05:00
xfs_da_btree.c	xfs: fix gcc 4.6 set but not read and unused statement warnings	2010-07-26 13:16:51 -05:00
xfs_da_btree.h
xfs_dfrag.c	xfs: simplify inode to transaction joining	2010-07-26 13:16:36 -05:00
xfs_dfrag.h
xfs_dinode.h
xfs_dir2_block.c	xfs: fix gcc 4.6 set but not read and unused statement warnings	2010-07-26 13:16:51 -05:00
xfs_dir2_block.h
xfs_dir2_data.c	xfs: remove unneeded #include statements	2010-07-26 13:16:33 -05:00
xfs_dir2_data.h
xfs_dir2_leaf.c	xfs: remove unused delta tracking code in xfs_bmapi	2010-07-26 13:16:39 -05:00
xfs_dir2_leaf.h
xfs_dir2_node.c	xfs: remove unneeded #include statements	2010-07-26 13:16:33 -05:00
xfs_dir2_node.h
xfs_dir2_sf.c	xfs: remove unneeded #include statements	2010-07-26 13:16:33 -05:00
xfs_dir2_sf.h
xfs_dir2.c	xfs: split xfs_itrace_entry	2010-07-26 13:16:44 -05:00
xfs_dir2.h
xfs_error.c	xfs: remove unneeded #include statements	2010-07-26 13:16:33 -05:00
xfs_error.h
xfs_extfree_item.c	xfs: fix the xfs_log_iovec i_addr type	2010-07-26 13:16:36 -05:00
xfs_extfree_item.h
xfs_filestream.c	xfs: clean up filestreams helpers	2010-07-26 13:16:51 -05:00
xfs_filestream.h	xfs: clean up filestreams helpers	2010-07-26 13:16:51 -05:00
xfs_fs.h
xfs_fsops.c	xfs: simplify inode to transaction joining	2010-07-26 13:16:36 -05:00
xfs_fsops.h
xfs_ialloc_btree.c	xfs: remove unneeded #include statements	2010-07-26 13:16:33 -05:00
xfs_ialloc_btree.h
xfs_ialloc.c	xfs: remove unneeded #include statements	2010-07-26 13:16:33 -05:00
xfs_ialloc.h
xfs_iget.c	xfs: fix gcc 4.6 set but not read and unused statement warnings	2010-07-26 13:16:51 -05:00
xfs_inode_item.c	xfs: fix big endian build	2010-07-26 16:07:38 -05:00
xfs_inode_item.h	xfs: simplify inode to transaction joining	2010-07-26 13:16:36 -05:00
xfs_inode.c	xfs: kill the b_strat callback in xfs_buf	2010-07-26 13:16:52 -05:00
xfs_inode.h	xfs: simplify and remove xfs_ireclaim	2010-07-26 13:16:48 -05:00
xfs_inum.h
xfs_iomap.c	xfs: small cleanups for xfs_iomap / __xfs_get_blocks	2010-07-26 13:16:42 -05:00
xfs_iomap.h	xfs: do not use emums for flags used in tracing	2010-07-26 13:16:43 -05:00
xfs_itable.c	xfs: remove xfs_iput	2010-07-26 13:16:44 -05:00
xfs_itable.h	xfs: remove block number from inode lookup code	2010-06-24 11:35:17 +10:00
xfs_log_cil.c	xfs: fix the xfs_log_iovec i_addr type	2010-07-26 13:16:36 -05:00
xfs_log_priv.h
xfs_log_recover.c	xfs: fix the xfs_log_iovec i_addr type	2010-07-26 13:16:36 -05:00
xfs_log_recover.h
xfs_log.c	xfs: fix gcc 4.6 set but not read and unused statement warnings	2010-07-26 13:16:51 -05:00
xfs_log.h	xfs: remove the unused XFS_LOG_SLEEP and XFS_LOG_NOSLEEP flags	2010-07-26 13:16:38 -05:00
xfs_mount.c	xfs: remove unneeded #include statements	2010-07-26 13:16:33 -05:00
xfs_mount.h	xfs: remove obsolete osyncisosync mount option	2010-07-26 13:16:51 -05:00
xfs_mru_cache.c
xfs_mru_cache.h
xfs_quota.h
xfs_refcache.h
xfs_rename.c	xfs: split xfs_itrace_entry	2010-07-26 13:16:44 -05:00
xfs_rtalloc.c	xfs: remove unused delta tracking code in xfs_bmapi	2010-07-26 13:16:39 -05:00
xfs_rtalloc.h
xfs_rw.c	xfs: remove unneeded #include statements	2010-07-26 13:16:33 -05:00
xfs_rw.h
xfs_sb.h
xfs_trans_ail.c	xfs: drop dmapi hooks	2010-07-26 13:16:33 -05:00
xfs_trans_buf.c	xfs: give li_cb callbacks the correct prototype	2010-07-26 13:16:35 -05:00
xfs_trans_extfree.c	xfs: simplify log item descriptor tracking	2010-07-26 13:16:34 -05:00
xfs_trans_inode.c	xfs: simplify inode to transaction joining	2010-07-26 13:16:36 -05:00
xfs_trans_priv.h	xfs: simplify log item descriptor tracking	2010-07-26 13:16:34 -05:00
xfs_trans_space.h
xfs_trans.c	xfs: fix xfs_trans_add_item() lockdep warnings	2010-07-26 13:16:49 -05:00
xfs_trans.h	xfs: remove the unused XFS_TRANS_NOSLEEP/XFS_TRANS_WAIT flags	2010-07-26 13:16:38 -05:00
xfs_types.h
xfs_utils.c	xfs: simplify xfs_truncate_file	2010-07-26 13:16:52 -05:00
xfs_utils.h	xfs: simplify xfs_truncate_file	2010-07-26 13:16:52 -05:00
xfs_vnodeops.c	xfs: fix unsigned underflow in xfs_free_eofblocks	2010-07-26 13:16:50 -05:00
xfs_vnodeops.h
xfs.h