Alex Elder cd9640a70d xfs: remove old vmap cache ... Re-apply a commit that had been reverted due to regressions that have since been fixed. Original commit: d2859751cd Author: Nick Piggin <npiggin@suse.de> Date: Tue, 6 Jan 2009 14:40:44 +1100 XFS's vmap batching simply defers a number (up to 64) of vunmaps, and keeps track of them in a list. To purge the batch, it just goes through the list and calls vunamp on each one. This is pretty poor: a global TLB flush is generally still performed on each vunmap, with the most expensive parts of the operation being the broadcast IPIs and locking involved in the SMP callouts, and the locking involved in the vmap management -- none of these are avoided by just batching up the calls. I'm actually surprised it ever made much difference. (Now that the lazy vmap allocator is upstream, this description is not quite right, but the vunmap batching still doesn't seem to do much). Rip all this logic out of XFS completely. I will improve vmap performance and scalability directly in subsequent patch. Signed-off-by: Nick Piggin <npiggin@suse.de> Reviewed-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> The only change I made was to use the "new" xfs_buf_is_vmapped() function in a place it had been open-coded in the original. Modified-by: Alex Elder <aelder@sgi.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>		2010-03-16 15:40:19 -05:00
..
linux-2.6	xfs: remove old vmap cache	2010-03-16 15:40:19 -05:00
quota	fs/xfs: Correct NULL test	2010-02-13 13:22:53 -06:00
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: merge xfs_lrw.c into xfs_file.c	2010-03-01 16:34:18 -06:00
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: split xfs_bmap_btalloc	2010-03-01 16:35:25 -06:00
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	xfs: return inode fork offset in bulkstat for fsr	2010-03-05 11:02:07 -06:00
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: fix locking for inode cache radix tree tag updates	2010-03-01 19:14:36 -06:00
xfs_inode.c	xfs: remove xfs_ipin/xfs_iunpin	2010-03-01 16:35:56 -06:00
xfs_inode.h	xfs: remove xfs_ipin/xfs_iunpin	2010-03-01 16:35:56 -06:00
xfs_inode_item.c	xfs: remove xfs_ipin/xfs_iunpin	2010-03-01 16:35:56 -06:00
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: return inode fork offset in bulkstat for fsr	2010-03-05 11:02:07 -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: stop passing opaque handles to xfs_log.c routines	2010-03-01 16:35:32 -06:00
xfs_log.h	xfs: stop passing opaque handles to xfs_log.c routines	2010-03-01 16:35:32 -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: Increase the default size of the reserved blocks pool	2010-03-05 11:01:59 -06:00
xfs_mount.h	Merge branch 'for-2.6.34-rc1-batch2' into for-linus	2010-03-05 11:45:03 -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 the unused XFS_QMOPT_* flush flags V2	2010-02-04 09:48:58 +11:00
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: only clear the suid bit once in xfs_write	2010-02-12 13:43:57 -06:00
xfs_rw.h	xfs: only clear the suid bit once in xfs_write	2010-02-12 13:43:57 -06:00
xfs_sb.h
xfs_trans.c	xfs: stop passing opaque handles to xfs_log.c routines	2010-03-01 16:35:32 -06:00
xfs_trans.h	xfs: stop passing opaque handles to xfs_log.c routines	2010-03-01 16:35:32 -06:00
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: factor common xfs_trans_bjoin code	2010-03-01 16:35:37 -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: remove wrapper for the fsync file operation	2010-03-01 16:34:38 -06:00
xfs_vnodeops.h	xfs: kill xfs_lrw.h	2010-03-01 16:35:44 -06:00