Nick Piggin 54cb8821de mm: merge populate and nopage into fault (fixes nonlinear) ... Nonlinear mappings are (AFAIKS) simply a virtual memory concept that encodes the virtual address -> file offset differently from linear mappings. ->populate is a layering violation because the filesystem/pagecache code should need to know anything about the virtual memory mapping. The hitch here is that the ->nopage handler didn't pass down enough information (ie. pgoff). But it is more logical to pass pgoff rather than have the ->nopage function calculate it itself anyway (because that's a similar layering violation). Having the populate handler install the pte itself is likewise a nasty thing to be doing. This patch introduces a new fault handler that replaces ->nopage and ->populate and (later) ->nopfn. Most of the old mechanism is still in place so there is a lot of duplication and nice cleanups that can be removed if everyone switches over. The rationale for doing this in the first place is that nonlinear mappings are subject to the pagefault vs invalidate/truncate race too, and it seemed stupid to duplicate the synchronisation logic rather than just consolidate the two. After this patch, MAP_NONBLOCK no longer sets up ptes for pages present in pagecache. Seems like a fringe functionality anyway. NOPAGE_REFAULT is removed. This should be implemented with ->fault, and no users have hit mainline yet. [akpm@linux-foundation.org: cleanup] [randy.dunlap@oracle.com: doc. fixes for readahead] [akpm@linux-foundation.org: build fix] Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Mark Fasheh <mark.fasheh@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-07-19 10:04:41 -07:00
..
linux-2.6	mm: merge populate and nopage into fault (fixes nonlinear)	2007-07-19 10:04:41 -07:00
quota	mm: clean up and kernelify shrinker registration	2007-07-17 10:23:00 -07:00
support	[XFS] reducing the number of random number functions.	2007-05-08 13:49:03 +10:00
Kbuild	kbuild/xfs: introduce fs/xfs/Kbuild	2006-01-09 20:48:03 +01:00
Kconfig	[PATCH] BLOCK: Make it possible to disable the block layer [try #6]	2006-09-30 20:52:31 +02:00
Makefile	[XFS] Sort out some cosmetic differences between XFS trees.	2005-09-05 11:47:01 +10:00
Makefile-linux-2.6	[XFS] Concurrent Multi-File Data Streams	2007-07-14 15:40:53 +10:00
xfs_acl.c	[XFS] Remove unused header files for MAC and CAP checking functionality.	2007-02-10 18:37:28 +11:00
xfs_acl.h	[XFS] Resolve a namespace collision on remaining vtypes for FreeBSD	2006-06-09 17:07:12 +10:00
xfs_ag.h	[XFS] Concurrent Multi-File Data Streams	2007-07-14 15:40:53 +10:00
xfs_alloc_btree.c	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_alloc_btree.h	[XFS] Remove unused arguments from the XFS_BTREE_*_ADDR macros.	2007-02-10 18:37:33 +11:00
xfs_alloc.c	[XFS] Clean up function name handling in tracing code	2007-07-14 15:41:24 +10:00
xfs_alloc.h	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_arch.h	[XFS] Merge in trivial changes, sync up headers with userspace	2006-01-12 10:29:53 +11:00
xfs_attr_leaf.c	[XFS] The last argument "lsn" of xfs_trans_commit() is always called with	2007-05-08 13:48:42 +10:00
xfs_attr_leaf.h	[XFS] Add EA list callbacks for xfs kernel use. Cleanup some namespace	2006-09-28 11:01:37 +10:00
xfs_attr_sf.h	[XFS] endianess annotations for xfs_attr_shortform_t	2006-03-17 17:29:25 +11:00
xfs_attr.c	[XFS] The last argument "lsn" of xfs_trans_commit() is always called with	2007-05-08 13:48:42 +10:00
xfs_attr.h	[XFS] Add EA list callbacks for xfs kernel use. Cleanup some namespace	2006-09-28 11:01:37 +10:00
xfs_behavior.c	[XFS] remove bhv_lookup, _range version works aswell and has more useful	2006-09-28 10:58:52 +10:00
xfs_behavior.h	[XFS] remove bhv_lookup, _range version works aswell and has more useful	2006-09-28 10:58:52 +10:00
xfs_bit.c	[XFS] Kill off xfs_count_bits	2007-07-14 15:36:43 +10:00
xfs_bit.h	[XFS] Kill off xfs_count_bits	2007-07-14 15:36:43 +10:00
xfs_bmap_btree.c	[XFS] Clean up function name handling in tracing code	2007-07-14 15:41:24 +10:00
xfs_bmap_btree.h	[XFS] Remove a bunch of unused functions from XFS.	2007-02-10 18:37:40 +11:00
xfs_bmap.c	[XFS] Clean up function name handling in tracing code	2007-07-14 15:41:24 +10:00
xfs_bmap.h	[XFS] Clean up function name handling in tracing code	2007-07-14 15:41:24 +10:00
xfs_btree.c	[XFS] endianess annotations for xfs_bmbt_key Trivial as there are no	2006-09-28 10:58:17 +10:00
xfs_btree.h	[XFS] Simplify XFS min/max macros.	2007-07-14 15:36:53 +10:00
xfs_buf_item.c	[XFS] Kill off xfs_count_bits	2007-07-14 15:36:43 +10:00
xfs_buf_item.h	[XFS] Get rid of old 5.3/6.1 v1 log items. Cleanup patch sent in by Eric	2007-02-10 18:35:02 +11:00
xfs_clnt.h	[XFS] Concurrent Multi-File Data Streams	2007-07-14 15:40:53 +10:00
xfs_da_btree.c	[XFS] Remove a bunch of unused functions from XFS.	2007-02-10 18:37:40 +11:00
xfs_da_btree.h	[XFS] Remove a bunch of unused functions from XFS.	2007-02-10 18:37:40 +11:00
xfs_dfrag.c	[XFS] propogate return codes from flush routines	2007-05-08 13:49:27 +10:00
xfs_dfrag.h	[XFS] Add parameters to xfs_bmapi() and xfs_bunmapi() to have them report	2006-06-09 14:48:12 +10:00
xfs_dinode.h	[XFS] Concurrent Multi-File Data Streams	2007-07-14 15:40:53 +10:00
xfs_dir2_block.c	[XFS] Reduce shouting by removing unnecessary macros from dir2 code.	2007-07-14 15:37:02 +10:00
xfs_dir2_block.h	[XFS] Reduce shouting by removing unnecessary macros from dir2 code.	2007-07-14 15:37:02 +10:00
xfs_dir2_data.c	[XFS] Reduce shouting by removing unnecessary macros from dir2 code.	2007-07-14 15:37:02 +10:00
xfs_dir2_data.h	[XFS] Reduce shouting by removing unnecessary macros from dir2 code.	2007-07-14 15:37:02 +10:00
xfs_dir2_leaf.c	[XFS] Reduce shouting by removing unnecessary macros from dir2 code.	2007-07-14 15:37:02 +10:00
xfs_dir2_leaf.h	[XFS] Reduce shouting by removing unnecessary macros from dir2 code.	2007-07-14 15:37:02 +10:00
xfs_dir2_node.c	[XFS] Reduce shouting by removing unnecessary macros from dir2 code.	2007-07-14 15:37:02 +10:00
xfs_dir2_node.h	[XFS] Reduce shouting by removing unnecessary macros from dir2 code.	2007-07-14 15:37:02 +10:00
xfs_dir2_sf.c	[XFS] Reduce shouting by removing unnecessary macros from dir2 code.	2007-07-14 15:37:02 +10:00
xfs_dir2_sf.h	[XFS] Reduce shouting by removing unnecessary macros from dir2 code.	2007-07-14 15:37:02 +10:00
xfs_dir2_trace.c	[XFS] Remove version 1 directory code. Never functioned on Linux, just	2006-06-20 13:04:51 +10:00
xfs_dir2_trace.h	[XFS] Update license/copyright notices to match the prefered SGI	2005-11-02 14:58:39 +11:00
xfs_dir2.c	[XFS] Reduce shouting by removing unnecessary macros from dir2 code.	2007-07-14 15:37:02 +10:00
xfs_dir2.h	[XFS] Remove version 1 directory code. Never functioned on Linux, just	2006-06-20 13:04:51 +10:00
xfs_dmapi.h	[XFS] Remove KERNEL_VERSION macros from xfs_dmapi.h	2006-11-11 18:05:06 +11:00
xfs_dmops.c	[XFS] Remove version 1 directory code. Never functioned on Linux, just	2006-06-20 13:04:51 +10:00
xfs_error.c	[XFS] reducing the number of random number functions.	2007-05-08 13:49:03 +10:00
xfs_error.h	[XFS] Remove a bunch of unused functions from XFS.	2007-02-10 18:37:40 +11:00
xfs_extfree_item.c	[XFS] Keep stack usage down for 4k stacks by using noinline.	2007-02-10 18:34:56 +11:00
xfs_extfree_item.h	[XFS] cleanup the field types of some item format structures	2006-09-28 10:55:43 +10:00
xfs_filestream.c	[XFS] Concurrent Multi-File Data Streams	2007-07-14 15:40:53 +10:00
xfs_filestream.h	[XFS] Concurrent Multi-File Data Streams	2007-07-14 15:40:53 +10:00
xfs_fs.h	[XFS] Concurrent Multi-File Data Streams	2007-07-14 15:40:53 +10:00
xfs_fsops.c	[XFS] Concurrent Multi-File Data Streams	2007-07-14 15:40:53 +10:00
xfs_fsops.h	[XFS] Write log dummy record when freezing filesystem	2006-01-11 15:30:08 +11:00
xfs_ialloc_btree.c	[XFS] use NULL for pointer initialisation instead of zero-cast-to-ptr	2006-09-28 10:58:40 +10:00
xfs_ialloc_btree.h	[XFS] Remove unused arguments from the XFS_BTREE_*_ADDR macros.	2007-02-10 18:37:33 +11:00
xfs_ialloc.c	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_ialloc.h	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_iget.c	[XFS] Add lockdep support for XFS	2007-05-08 13:50:19 +10:00
xfs_imap.h	[XFS] Update license/copyright notices to match the prefered SGI	2005-11-02 14:58:39 +11:00
xfs_inode_item.c	[XFS] Keep stack usage down for 4k stacks by using noinline.	2007-02-10 18:34:56 +11:00
xfs_inode_item.h	[XFS] cleanup the field types of some item format structures	2006-09-28 10:55:43 +10:00
xfs_inode.c	[XFS] Clean up function name handling in tracing code	2007-07-14 15:41:24 +10:00
xfs_inode.h	[XFS] Fix lockdep annotations for xfs_lock_inodes	2007-07-14 18:09:42 +10:00
xfs_inum.h	[XFS] Update license/copyright notices to match the prefered SGI	2005-11-02 14:58:39 +11:00
xfs_iocore.c	[XFS] Fix to prevent the notorious 'NULL files' problem after a crash.	2007-05-08 13:49:46 +10:00
xfs_iomap.c	[XFS] Cleanup inode extent size hint extraction	2007-07-14 15:35:36 +10:00
xfs_iomap.h	[XFS] Fix to prevent the notorious 'NULL files' problem after a crash.	2007-05-08 13:49:46 +10:00
xfs_itable.c	[XFS] Fix XFS_IOC_FSBULKSTAT{,_SINGLE} & XFS_IOC_FSINUMBERS in compat mode	2007-07-14 15:42:50 +10:00
xfs_itable.h	[XFS] Fix XFS_IOC_FSBULKSTAT{,_SINGLE} & XFS_IOC_FSINUMBERS in compat mode	2007-07-14 15:42:50 +10:00
xfs_log_priv.h	[XFS] Fixes the leak in reservation space because we weren't ungranting	2006-09-28 11:04:16 +10:00
xfs_log_recover.c	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_log_recover.h	[XFS] Update license/copyright notices to match the prefered SGI	2005-11-02 14:58:39 +11:00
xfs_log.c	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_log.h	[XFS] Remove several macros that are no longer used anywhere	2006-09-28 11:02:57 +10:00
xfs_mount.c	[XFS] Use do_div() on 64 bit types.	2007-07-14 15:36:08 +10:00
xfs_mount.h	[XFS] Concurrent Multi-File Data Streams	2007-07-14 15:40:53 +10:00
xfs_mru_cache.c	[XFS] Concurrent Multi-File Data Streams	2007-07-14 15:40:53 +10:00
xfs_mru_cache.h	[XFS] Concurrent Multi-File Data Streams	2007-07-14 15:40:53 +10:00
xfs_qmops.c	[XFS] The last argument "lsn" of xfs_trans_commit() is always called with	2007-05-08 13:48:42 +10:00
xfs_quota.h	[XFS] Fix uquota and oquota enforcement problems.	2007-05-08 13:49:33 +10:00
xfs_refcache.h	[XFS] Cleanup cosmetic differences between source trees.	2005-11-03 16:14:31 +11:00
xfs_rename.c	[XFS] The last argument "lsn" of xfs_trans_commit() is always called with	2007-05-08 13:48:42 +10:00
xfs_rtalloc.c	[XFS] Don't grow filesystems past the size they can index.	2007-07-14 15:21:29 +10:00
xfs_rtalloc.h	[XFS] Remove a bunch of unused functions from XFS.	2007-02-10 18:37:40 +11:00
xfs_rw.c	[XFS] The last argument "lsn" of xfs_trans_commit() is always called with	2007-05-08 13:48:42 +10:00
xfs_rw.h	[XFS] Cleanup inode extent size hint extraction	2007-07-14 15:35:36 +10:00
xfs_sb.h	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_trans_ail.c	[XFS] Workaround log space issue by increasing XFS_TRANS_PUSH_AIL_RESTARTS	2007-02-10 18:35:52 +11:00
xfs_trans_buf.c	[XFS] Remove version 1 directory code. Never functioned on Linux, just	2006-06-20 13:04:51 +10:00
xfs_trans_extfree.c	[XFS] Remove version 1 directory code. Never functioned on Linux, just	2006-06-20 13:04:51 +10:00
xfs_trans_inode.c	[XFS] Remove version 1 directory code. Never functioned on Linux, just	2006-06-20 13:04:51 +10:00
xfs_trans_item.c	[XFS] Portability changes: remove prdev, stick to one diagnostic	2006-06-09 15:29:40 +10:00
xfs_trans_priv.h	[XFS] Add lock annotations to xfs_trans_update_ail and	2006-09-28 11:04:07 +10:00
xfs_trans_space.h	[XFS] Remove version 1 directory code. Never functioned on Linux, just	2006-06-20 13:04:51 +10:00
xfs_trans.c	[XFS] Apply transaction delta counts atomically to incore counters	2007-07-14 15:32:09 +10:00
xfs_trans.h	[XFS] Lazy Superblock Counters	2007-07-14 15:28:50 +10:00
xfs_types.h	[XFS] Update license/copyright notices to match the prefered SGI	2005-11-02 14:58:39 +11:00
xfs_utils.c	[XFS] propogate return codes from flush routines	2007-05-08 13:49:27 +10:00
xfs_utils.h	[XFS] Resolve a namespace collision on remaining vtypes for FreeBSD	2006-06-09 17:07:12 +10:00
xfs_vfsops.c	[XFS] Concurrent Multi-File Data Streams	2007-07-14 15:40:53 +10:00
xfs_vnodeops.c	[XFS] Fix lockdep annotations for xfs_lock_inodes	2007-07-14 18:09:42 +10:00
xfs.h	[XFS] Concurrent Multi-File Data Streams	2007-07-14 15:40:53 +10:00