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Christoph Hellwig 0e51a8e191 xfs: optimize bio handling in the buffer writeback path 
This patch implements two closely related changes:  First it embeds
a bio the ioend structure so that we don't have to allocate one
separately.  Second it uses the block layer bio chaining mechanism
to chain additional bios off this first one if needed instead of
manually accounting for multiple bio completions in the ioend
structure.  Together this removes a memory allocation per ioend and
greatly simplifies the ioend setup and I/O completion path.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2016-04-06 08:34:30 +10:00
..
libxfs
Merge branch 'xfs-misc-fixes-4.6-4' into for-next
2016-03-15 11:44:35 +11:00
Kconfig
xfs: require 64-bit sector_t
2014-07-30 09:12:05 +10:00
kmem.c
xfs: more info from kmem deadlocks and high-level error msgs
2015-10-12 16:04:45 +11:00
kmem.h
kmemcg: account certain kmem allocations to memcg
2016-01-14 16:00:49 -08:00
Makefile
nfsd: add SCSI layout support
2016-03-18 11:42:53 -04:00
mrlock.h
…
uuid.c
…
uuid.h
…
xfs_acl.c
xfs: Change how listxattr generates synthetic attributes
2015-12-06 21:34:16 -05:00
xfs_acl.h
xfs: Change how listxattr generates synthetic attributes
2015-12-06 21:34:16 -05:00
xfs_aops.c
xfs: optimize bio handling in the buffer writeback path
2016-04-06 08:34:30 +10:00
xfs_aops.h
xfs: optimize bio handling in the buffer writeback path
2016-04-06 08:34:30 +10:00
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: fix two memory leaks in xfs_attr_list.c error paths
2016-03-02 09:51:09 +11:00
xfs_attr.h
…
xfs_bmap_util.c
xfs: Changes for 4.6-rc1
2016-03-21 11:53:05 -07:00
xfs_bmap_util.h
xfs: Add support FALLOC_FL_INSERT_RANGE for fallocate
2015-03-25 15:08:56 +11:00
xfs_buf_item.c
xfs: remove XBF_STALE flag wrapper macros
2016-02-10 15:01:11 +11:00
xfs_buf_item.h
xfs: fix non-debug build warnings
2015-08-25 10:05:13 +10:00
xfs_buf.c
xfs: remove XBF_DONE flag wrapper macros
2016-02-10 15:01:11 +11:00
xfs_buf.h
xfs: remove XFS_BUF_ZEROFLAGS macro
2016-02-10 15:01:30 +11:00
xfs_dir2_readdir.c
xfs: mode di_mode to vfs inode
2016-02-09 16:54:58 +11:00
xfs_discard.c
xfs: fix format specifier , should be %llx and not %llu
2016-03-02 09:57:04 +11:00
xfs_discard.h
…
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_dquot.c
xfs: Split default quota limits by quota type
2016-02-08 11:27:55 +11:00
xfs_dquot.h
xfs: fix implicit bool to int conversion
2015-01-09 10:48:58 +11:00
xfs_error.c
xfs: print name of verifier if it fails
2016-01-04 16:10:19 +11:00
xfs_error.h
xfs: remove inst_t
2015-06-22 09:44:02 +10:00
xfs_export.c
Various bugfixes, a RDMA update from Chuck Lever, and support for a new
2016-03-24 19:50:32 -07:00
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
Merge branch 'xfs-gut-icdinode-4.6' into for-next
2016-03-07 09:30:32 +11:00
xfs_filestream.c
xfs: mode di_mode to vfs inode
2016-02-09 16:54:58 +11:00
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: remove unused function definitions
2016-02-08 14:58:07 +11:00
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: mode di_mode to vfs inode
2016-02-09 16:54:58 +11:00
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_inode_item.c
xfs: mode di_mode to vfs inode
2016-02-09 16:54:58 +11:00
xfs_inode_item.h
xfs: remove timestamps from incore inode
2016-02-09 16:54:58 +11:00
xfs_inode.c
Merge branch 'xfs-buf-macro-cleanup-4.6' into for-next
2016-03-07 09:31:00 +11:00
xfs_inode.h
Merge branch 'xfs-gut-icdinode-4.6' into for-next
2016-03-07 09:30:32 +11:00
xfs_ioctl32.c
xfs: prefix XATTR_LIST_MAX with XFS_
2015-10-12 16:02:56 +11:00
xfs_ioctl32.h
xfs: compat_xfs_bstat does not have forkoff
2014-10-02 09:17:58 +10:00
xfs_ioctl.c
Merge branch 'xfs-dax-fixes-4.6' into for-next
2016-03-07 09:34:31 +11:00
xfs_ioctl.h
…
xfs_iomap.c
Merge branch 'xfs-misc-fixes-for-4.5-2' into for-next
2016-01-12 07:04:30 +11:00
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
Merge branch 'xfs-dax-fixes-4.6' into for-next
2016-03-07 09:34:31 +11:00
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: mode di_mode to vfs inode
2016-02-09 16:54:58 +11:00
xfs_itable.h
xfs: bulkstat chunk formatting cursor is broken
2014-11-07 08:30:30 +11:00
xfs_linux.h
xfs: pass xfsstats structures to handlers and macros
2015-10-12 05:19:45 +11:00
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: debug mode log record crc error injection
2016-01-05 07:41:16 +11:00
xfs_log_recover.c
xfs: fixes for 4.5-rc7
2016-03-11 10:21:32 -08:00
xfs_log.c
xfs: use named array initializers for log item dumping
2016-03-07 08:40:03 +11:00
xfs_log.h
xfs: validate metadata LSNs against log on v5 superblocks
2015-10-12 15:59:25 +11:00
xfs_message.c
xfs: more info from kmem deadlocks and high-level error msgs
2015-10-12 16:04:45 +11:00
xfs_message.h
…
xfs_mount.c
Merge branch 'xfs-misc-fixes-4.6-2' into for-next
2016-03-07 09:34:54 +11:00
xfs_mount.h
Merge branch 'xfs-misc-fixes-4.6-4' into for-next
2016-03-15 11:44:35 +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_ondisk.h
xfs: check sizes of XFS on-disk structures at compile time
2016-03-09 08:15:14 +11:00
xfs_pnfs.c
wrappers for ->i_mutex access
2016-01-22 18:04:28 -05:00
xfs_pnfs.h
nfsd: add SCSI layout support
2016-03-18 11:42:53 -04:00
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: Split default quota limits by quota type
2016-02-08 11:27:55 +11:00
xfs_qm.c
xfs: Split default quota limits by quota type
2016-02-08 11:27:55 +11:00
xfs_qm.h
xfs: Split default quota limits by quota type
2016-02-08 11:27:55 +11:00
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: wire up Q_XGETNEXTQUOTA / get_nextdqblk
2016-02-08 11:27:38 +11:00
xfs_rtalloc.c
xfs: remove timestamps from incore inode
2016-02-09 16:54:58 +11:00
xfs_rtalloc.h
xfs: combine xfs_rtmodify_summary and xfs_rtget_summary
2014-09-09 11:58:42 +10:00
xfs_stats.c
xfs: stats are no longer dependent on CONFIG_PROC_FS
2015-10-19 08:42:46 +11:00
xfs_stats.h
xfs: per-filesystem stats counter implementation
2015-10-12 18:21:22 +11:00
xfs_super.c
xfs: optimize bio handling in the buffer writeback path
2016-04-06 08:34:30 +10:00
xfs_super.h
xfs: fix up inode32/64 (re)mount handling
2016-03-02 09:58:09 +11:00
xfs_symlink.c
xfs: eliminate committed arg from xfs_bmap_finish
2016-01-11 11:34:01 +11:00
xfs_symlink.h
xfs: push down inactive transaction mgmt for remote symlinks
2013-10-08 14:53:02 -05:00
xfs_sysctl.c
xfs: pass xfsstats structures to handlers and macros
2015-10-12 05:19:45 +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: debug mode forced buffered write failure
2016-03-15 11:42:44 +11:00
xfs_sysfs.h
xfs: create global stats and stats_clear in sysfs
2015-10-12 05:15:45 +11:00
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: don't use ioends for direct write completions
2016-02-08 14:40:51 +11:00
xfs_trans_ail.c
xfs: Make xfsaild freezeable again
2016-02-08 14:59:07 +11:00
xfs_trans_buf.c
xfs: remove XBF_STALE flag wrapper macros
2016-02-10 15:01:11 +11:00
xfs_trans_dquot.c
xfs: Split default quota limits by quota type
2016-02-08 11:27:55 +11:00
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 di_changecount to VFS inode
2016-02-09 16:54:58 +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_trans.c
xfs: ensure committed is initialized in xfs_trans_roll
2016-03-15 11:42:47 +11:00
xfs_trans.h
xfs: remove xfs_trans_get_block_res
2016-03-02 09:58:21 +11:00
xfs_xattr.c
xfs: Change how listxattr generates synthetic attributes
2015-12-06 21:34:16 -05:00
xfs.h
…