Dave Chinner 3fbbbea34b xfs: introduce BMAPI_ZERO for allocating zeroed extents ... To enable DAX to do atomic allocation of zeroed extents, we need to drive the block zeroing deep into the allocator. Because xfs_bmapi_write() can return merged extents on allocation that were only partially allocated (i.e. requested range spans allocated and hole regions, allocation into the hole was contiguous), we cannot zero the extent returned from xfs_bmapi_write() as that can overwrite existing data with zeros. Hence we have to drive the extent zeroing into the allocation code, prior to where we merge the extents into the BMBT and return the resultant map. This means we need to propagate this need down to the xfs_alloc_vextent() and issue the block zeroing at this point. While this functionality is being introduced for DAX, there is no reason why it is specific to DAX - we can per-zero blocks during the allocation transaction on any type of device. It's just slow (and usually slower than unwritten allocation and conversion) on traditional block devices so doesn't tend to get used. We can, however, hook hardware zeroing optimisations via sb_issue_zeroout() to this operation, so it may be useful in future and hence the "allocate zeroed blocks" API needs to be implementation neutral. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>		2015-11-03 12:27:22 +11:00
..
libxfs	xfs: introduce BMAPI_ZERO for allocating zeroed extents	2015-11-03 12:27:22 +11:00
Kconfig	xfs: require 64-bit sector_t	2014-07-30 09:12:05 +10:00
kmem.c	xfs: change kmem_free to use generic kvfree()	2015-02-02 09:54:18 +11:00
kmem.h	xfs: change kmem_free to use generic kvfree()	2015-02-02 09:54:18 +11:00
Makefile	libxfs: add xfs_bit.c	2015-07-29 11:52:08 +10:00
mrlock.h
uuid.c
uuid.h
xfs.h
xfs_acl.c	xfs: move most of xfs_sb.h to xfs_format.h	2014-11-28 14:27:09 +11:00
xfs_acl.h	xfs: move acl structures to xfs_format.h	2014-11-28 14:24:37 +11:00
xfs_aops.c	xfs: fix inode size update overflow in xfs_map_direct()	2015-11-03 12:27:22 +11:00
xfs_aops.h	xfs: fix inode size update overflow in xfs_map_direct()	2015-11-03 12:27:22 +11:00
xfs_attr.h	xfs: kill xfs_vnodeops.[ch]	2013-08-12 16:53:39 -05:00
xfs_attr_inactive.c	Merge branch 'xfs-misc-fixes-for-4.2-3' into for-next	2015-06-23 08:49:01 +10:00
xfs_attr_list.c	xfs: pass attr geometry to attr leaf header conversion functions	2015-04-13 11:26:02 +10:00
xfs_bmap_util.c	xfs: introduce BMAPI_ZERO for allocating zeroed extents	2015-11-03 12:27:22 +11:00
xfs_bmap_util.h	xfs: Add support FALLOC_FL_INSERT_RANGE for fallocate	2015-03-25 15:08:56 +11:00
xfs_buf.c	xfs: updates for 4.3-rc1	2015-09-07 13:28:32 -07:00
xfs_buf.h	dax: move DAX-related functions to a new header	2015-09-08 15:35:28 -07:00
xfs_buf_item.c	Merge branch 'xfs-misc-fixes-for-4.3-3' into for-next	2015-08-25 10:13:35 +10:00
xfs_buf_item.h	xfs: fix non-debug build warnings	2015-08-25 10:05:13 +10:00
xfs_dir2_readdir.c	xfs: stop holding ILOCK over filldir callbacks	2015-08-19 10:33:00 +10:00
xfs_discard.c	xfs: pass mp to XFS_WANT_CORRUPTED_GOTO	2015-02-23 22:39:08 +11:00
xfs_discard.h
xfs_dquot.c	Merge branch 'xfs-misc-fixes-for-4.3-2' into for-next	2015-08-20 09:28:45 +10:00
xfs_dquot.h	xfs: fix implicit bool to int conversion	2015-01-09 10:48:58 +11:00
xfs_dquot_item.c	xfs: move most of xfs_sb.h to xfs_format.h	2014-11-28 14:27:09 +11:00
xfs_dquot_item.h	xfs: remove the quotaoff log format from the quotaoff log item	2013-12-13 11:34:08 +11:00
xfs_error.c	xfs: remove inst_t	2015-06-22 09:44:02 +10:00
xfs_error.h	xfs: remove inst_t	2015-06-22 09:44:02 +10:00
xfs_export.c	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
xfs_export.h
xfs_extent_busy.c	xfs: merge xfs_ag.h into xfs_format.h	2014-11-28 14:25:04 +11:00
xfs_extent_busy.h	xfs: decouple inode and bmap btree header files	2013-10-23 16:28:49 -05:00
xfs_extfree_item.c	xfs: add helper to conditionally remove items from the AIL	2015-08-19 10:01:08 +10:00
xfs_extfree_item.h	xfs: fix efi/efd error handling to avoid fs shutdown hangs	2015-08-19 09:51:16 +10:00
xfs_file.c	xfs: fix inode size update overflow in xfs_map_direct()	2015-11-03 12:27:22 +11:00
xfs_filestream.c	xfs: clean up XFS_MIN_FREELIST macros	2015-06-22 10:13:30 +10:00
xfs_filestream.h	xfs: add filestream allocator tracepoints	2014-04-23 07:11:52 +10:00
xfs_fsops.c	xfs: growfs not aware of sb_meta_uuid	2015-08-19 10:31:41 +10:00
xfs_fsops.h
xfs_globals.c	xfs: export log_recovery_delay to delay mount time log recovery	2014-09-09 11:56:13 +10:00
xfs_icache.c	xfs: add mssing inode cache attempts counter increment	2015-08-28 14:50:56 +10:00
xfs_icache.h	xfs: merge xfs_ag.h into xfs_format.h	2014-11-28 14:25:04 +11:00
xfs_icreate_item.c	xfs: move most of xfs_sb.h to xfs_format.h	2014-11-28 14:27:09 +11:00
xfs_icreate_item.h	xfs: separate icreate log format definitions from xfs_icreate_item.h	2013-08-12 16:10:35 -05:00
xfs_inode.c	Merge branch 'xfs-misc-fixes-for-4.3-3' into for-next	2015-08-25 10:13:35 +10:00
xfs_inode.h	xfs: clean up inode lockdep annotations	2015-08-19 10:32:49 +10:00
xfs_inode_item.c	xfs: add helper to conditionally remove items from the AIL	2015-08-19 10:01:08 +10:00
xfs_inode_item.h	xfs: remove the inode log format from the inode log item	2013-12-13 11:34:05 +11:00
xfs_ioctl.c	xfs: saner xfs_trans_commit interface	2015-06-04 13:48:08 +10:00
xfs_ioctl.h	xfs: consolidate extent swap code	2013-08-12 16:56:06 -05:00
xfs_ioctl32.c	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
xfs_ioctl32.h	xfs: compat_xfs_bstat does not have forkoff	2014-10-02 09:17:58 +10:00
xfs_iomap.c	xfs: saner xfs_trans_commit interface	2015-06-04 13:48:08 +10:00
xfs_iomap.h	xfs: pass a 64-bit count argument to xfs_iomap_write_unwritten	2015-01-09 10:48:12 +11:00
xfs_iops.c	xfs: fix error gotos in xfs_setattr_nonsize	2015-08-28 14:51:10 +10:00
xfs_iops.h	xfs: inodes are new until the dentry cache is set up	2015-02-23 22:38:08 +11:00
xfs_itable.c	xfs: fix btree cursor error cleanups	2015-08-19 10:00:53 +10:00
xfs_itable.h	xfs: bulkstat chunk formatting cursor is broken	2014-11-07 08:30:30 +11:00
xfs_linux.h	xfs: remove xfs_caddr_t	2015-06-22 09:45:10 +10:00
xfs_log.c	Merge branch 'xfs-efi-rework' into for-next	2015-08-19 10:10:47 +10:00
xfs_log.h	xfs: don't leave EFIs on AIL on mount failure	2015-08-19 09:58:36 +10:00
xfs_log_cil.c	xfs: close xc_cil list_empty() races with cil commit sequence	2015-07-29 11:51:01 +10:00
xfs_log_priv.h	xfs: don't leave EFIs on AIL on mount failure	2015-08-19 09:58:36 +10:00
xfs_log_recover.c	Merge branch 'xfs-misc-fixes-for-4.3-2' into for-next	2015-08-20 09:28:45 +10:00
xfs_message.c	xfs: move most of xfs_sb.h to xfs_format.h	2014-11-28 14:27:09 +11:00
xfs_message.h
xfs_mount.c	xfs: clean up root inode properly on mount failure	2015-08-19 10:00:28 +10:00
xfs_mount.h	xfs: introduce BMAPI_ZERO for allocating zeroed extents	2015-11-03 12:27:22 +11:00
xfs_mru_cache.c	xfs: xfs_mru_cache_insert() should use GFP_NOFS	2015-03-25 14:57:53 +11:00
xfs_mru_cache.h	xfs: embedd mru_elem into parent structure	2014-04-23 07:11:51 +10:00
xfs_pnfs.c	xfs: saner xfs_trans_commit interface	2015-06-04 13:48:08 +10:00
xfs_pnfs.h	xfs: unlock i_mutex in xfs_break_layouts	2015-04-13 11:38:29 +10:00
xfs_qm.c	xfs: saner xfs_trans_commit interface	2015-06-04 13:48:08 +10:00
xfs_qm.h	xfs: Convert to using ->get_state callback	2015-03-04 16:06:36 +01:00
xfs_qm_bhv.c	xfs: move most of xfs_sb.h to xfs_format.h	2014-11-28 14:27:09 +11:00
xfs_qm_syscalls.c	xfs: saner xfs_trans_commit interface	2015-06-04 13:48:08 +10:00
xfs_quota.h	xfs: fix quota block reservation leak when tp allocates and frees blocks	2015-06-01 07:15:37 +10:00
xfs_quotaops.c	xfs: Add support for Q_SETINFO	2015-03-04 16:06:38 +01:00
xfs_rtalloc.c	xfs: add missing bmap cancel calls in error paths	2015-08-19 10:01:40 +10:00
xfs_rtalloc.h	xfs: combine xfs_rtmodify_summary and xfs_rtget_summary	2014-09-09 11:58:42 +10:00
xfs_stats.c	xfs: support the XFS_BTNUM_FINOBT free inode btree type	2014-04-24 16:00:52 +10:00
xfs_stats.h	xfs: support the XFS_BTNUM_FINOBT free inode btree type	2014-04-24 16:00:52 +10:00
xfs_super.c	xfs: updates for 4.3-rc1	2015-09-07 13:28:32 -07:00
xfs_super.h	xfs: Remove icsb infrastructure	2015-02-23 21:22:31 +11:00
xfs_symlink.c	Merge branch 'xfs-misc-fixes-for-4.3-2' into for-next	2015-08-20 09:28:45 +10:00
xfs_symlink.h	xfs: push down inactive transaction mgmt for remote symlinks	2013-10-08 14:53:02 -05:00
xfs_sysctl.c	xfs: remove deprecated sysctls	2015-01-09 10:47:43 +11:00
xfs_sysctl.h	xfs: export log_recovery_delay to delay mount time log recovery	2014-09-09 11:56:13 +10:00
xfs_sysfs.c	xfs: export log_recovery_delay to delay mount time log recovery	2014-09-09 11:56:13 +10:00
xfs_sysfs.h	xfs: add debug sysfs attribute set	2014-09-09 11:52:42 +10:00
xfs_trace.c	xfs: move most of xfs_sb.h to xfs_format.h	2014-11-28 14:27:09 +11:00
xfs_trace.h	xfs: huge page fault support	2015-09-08 15:35:28 -07:00
xfs_trans.c	xfs: return committed status from xfs_trans_roll()	2015-08-19 09:50:13 +10:00
xfs_trans.h	xfs: ensure EFD trans aborts on log recovery extent free failure	2015-08-19 09:51:43 +10:00
xfs_trans_ail.c	xfs: remove __psint_t and __psunsigned_t	2015-06-22 09:43:32 +10:00
xfs_trans_buf.c	xfs: only trace buffer items if they exist	2015-02-10 09:23:40 +11:00
xfs_trans_dquot.c	xfs: Clean up xfs_trans_dup_dqinfo	2015-06-01 10:50:00 +10:00
xfs_trans_extfree.c	xfs: ensure EFD trans aborts on log recovery extent free failure	2015-08-19 09:51:43 +10:00
xfs_trans_inode.c	xfs: move most of xfs_sb.h to xfs_format.h	2014-11-28 14:27:09 +11:00
xfs_trans_priv.h	xfs: add helper to conditionally remove items from the AIL	2015-08-19 10:01:08 +10:00
xfs_xattr.c	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00