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c999a223c2
linux/fs/xfs
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Dave Chinner c999a223c2 xfs: introduce an allocation workqueue 
We currently have significant issues with the amount of stack that
allocation in XFS uses, especially in the writeback path. We can
easily consume 4k of stack between mapping the page, manipulating
the bmap btree and allocating blocks from the free list. Not to
mention btree block readahead and other functionality that issues IO
in the allocation path.

As a result, we can no longer fit allocation in the writeback path
in the stack space provided on x86_64. To alleviate this problem,
introduce an allocation workqueue and move all allocations to a
seperate context. This can be easily added as an interposing layer
into xfs_alloc_vextent(), which takes a single argument structure
and does not return until the allocation is complete or has failed.

To do this, add a work structure and a completion to the allocation
args structure. This allows xfs_alloc_vextent to queue the args onto
the workqueue and wait for it to be completed by the worker. This
can be done completely transparently to the caller.

The worker function needs to ensure that it sets and clears the
PF_TRANS flag appropriately as it is being run in an active
transaction context. Work can also be queued in a memory reclaim
context, so a rescuer is needed for the workqueue.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
2012-03-22 16:12:24 -05:00
..
Kconfig
kmem.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
kmem.h xfs: use a normal shrinker for the dquot freelist 2012-02-10 12:38:09 -06:00
Makefile xfs: use common code for quota statistics 2012-03-14 11:09:06 -05:00
mrlock.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
time.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
uuid.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
uuid.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_acl.c xfs: fix acl count validation in xfs_acl_from_disk() 2011-12-16 15:17:42 -06:00
xfs_acl.h xfs: Fix build breakage in xfs_iops.c when CONFIG_FS_POSIX_ACL is not set 2011-08-01 02:35:04 -04:00
xfs_ag.h xfs: Remove the macro XFS_BUF_PTR 2011-07-25 15:03:13 -05:00
xfs_alloc_btree.c xfs: remove leftovers of the old btree tracing code 2011-07-13 13:43:50 +02:00
xfs_alloc_btree.h
xfs_alloc.c xfs: introduce an allocation workqueue 2012-03-22 16:12:24 -05:00
xfs_alloc.h xfs: introduce an allocation workqueue 2012-03-22 16:12:24 -05:00
xfs_aops.c xfs: log file size updates at I/O completion time 2012-03-13 16:30:49 -05:00
xfs_aops.h xfs: log file size updates at I/O completion time 2012-03-13 16:30:49 -05:00
xfs_attr_leaf.c xfs: remove the if_ext_max field in struct xfs_ifork 2012-01-17 15:02:28 -06:00
xfs_attr_leaf.h
xfs_attr_sf.h
xfs_attr.c xfs: remove xfs_itruncate_data 2012-01-13 12:11:45 -06:00
xfs_attr.h
xfs_bit.c
xfs_bit.h
xfs_bmap_btree.c xfs: remove leftovers of the old btree tracing code 2011-07-13 13:43:50 +02:00
xfs_bmap_btree.h
xfs_bmap.c xfs: fix deadlock in xfs_rtfree_extent 2012-03-22 15:31:06 -05:00
xfs_bmap.h xfs: cleanup xfs_bmap.h 2011-10-11 21:15:07 -05:00
xfs_btree.c xfs: remove XFS_BUF_SET_VTYPE and XFS_BUF_SET_VTYPE_REF 2011-10-11 21:15:09 -05:00
xfs_btree.h xfs: Remove the macro XFS_BUF_PTR 2011-07-25 15:03:13 -05:00
xfs_buf_item.c xfs: constify xfs_item_ops 2011-11-08 10:48:23 -06:00
xfs_buf_item.h xfs: use struct list_head for the buf cancel table 2010-12-16 16:05:22 -06:00
xfs_buf.c xfs: use per-filesystem I/O completion workqueues 2012-03-05 11:07:42 -06:00
xfs_buf.h xfs: remove unused XBT_FORCE_SLEEP bit 2011-12-16 15:12:33 -06:00
xfs_da_btree.c xfs: remove XFS_BUF_SET_VTYPE and XFS_BUF_SET_VTYPE_REF 2011-10-11 21:15:09 -05:00
xfs_da_btree.h xfs: remove the dead XFS_DABUF_DEBUG code 2011-07-13 13:43:50 +02:00
xfs_dfrag.c xfs: split in-core and on-disk inode log item fields 2012-03-13 17:08:17 -05:00
xfs_dfrag.h
xfs_dinode.h xfs: Remove the macro XFS_BUF_PTR 2011-07-25 15:03:13 -05:00
xfs_dir2_block.c xfs: clean up minor sparse warnings 2012-03-14 13:21:17 -05:00
xfs_dir2_data.c xfs: reshuffle dir2 headers 2011-07-13 13:43:48 +02:00
xfs_dir2_format.h xfs: cleanup struct xfs_dir2_free 2011-07-13 13:43:48 +02:00
xfs_dir2_leaf.c xfs: introduce xfs_bmapi_read() 2011-10-11 21:15:03 -05:00
xfs_dir2_node.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-07-25 13:56:39 -07:00
xfs_dir2_priv.h xfs: reshuffle dir2 headers 2011-07-13 13:43:48 +02:00
xfs_dir2_sf.c xfs: reshuffle dir2 headers 2011-07-13 13:43:48 +02:00
xfs_dir2.c xfs: get rid of open-coded S_ISREG(), etc. 2011-07-26 15:05:16 -04:00
xfs_dir2.h xfs: reshuffle dir2 headers 2011-07-13 13:43:48 +02:00
xfs_discard.c xfs: fix endian conversion issue in discard code 2012-01-03 11:39:55 -06:00
xfs_discard.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_dquot_item.c xfs: cleanup dquot locking helpers 2011-12-12 17:28:20 -06:00
xfs_dquot_item.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_dquot.c fs: xfs: fix section mismatch in linux-next 2012-03-22 13:48:55 -05:00
xfs_dquot.h xfs: remove the per-filesystem list of dquots 2012-03-14 11:53:34 -05:00
xfs_error.c xfs: Convert remaining cmn_err() callers to new API 2011-03-07 10:08:35 +11:00
xfs_error.h xfs: kill support/debug.[ch] 2011-03-07 10:09:35 +11:00
xfs_export.c xfs: fix nfs export of 64-bit inodes numbers on 32-bit kernels 2011-12-06 10:46:23 -06:00
xfs_export.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_extfree_item.c xfs: constify xfs_item_ops 2011-11-08 10:48:23 -06:00
xfs_extfree_item.h xfs: Pull EFI/EFD handling out from under the AIL lock 2010-12-20 11:59:49 +11:00
xfs_file.c xfs: reimplement fdatasync support 2012-03-13 17:18:14 -05:00
xfs_filestream.c xfs: rename allocation range fields in struct xfs_bmalloca 2011-10-11 21:15:06 -05:00
xfs_filestream.h
xfs_fs_subr.c xfs: remove the i_size field in struct xfs_inode 2012-01-17 15:08:53 -06:00
xfs_fs.h xfs: consolidate & clarify mount sanity checks 2011-07-08 11:32:51 -05:00
xfs_fsops.c xfs: Check the return value of xfs_buf_get() 2011-10-11 21:15:01 -05:00
xfs_fsops.h xfs: ensure log covering transactions are synchronous 2011-01-11 20:28:17 -06:00
xfs_globals.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_ialloc_btree.c xfs: remove leftovers of the old btree tracing code 2011-07-13 13:43:50 +02:00
xfs_ialloc_btree.h
xfs_ialloc.c xfs: propagate umode_t 2012-01-03 22:55:00 -05:00
xfs_ialloc.h xfs: propagate umode_t 2012-01-03 22:55:00 -05:00
xfs_iget.c xfs: fix inode lookup race 2012-03-15 13:16:42 -05:00
xfs_inode_item.c xfs: reimplement fdatasync support 2012-03-13 17:18:14 -05:00
xfs_inode_item.h xfs: reimplement fdatasync support 2012-03-13 17:18:14 -05:00
xfs_inode.c xfs: split in-core and on-disk inode log item fields 2012-03-13 17:08:17 -05:00
xfs_inode.h xfs: log timestamp updates 2012-03-13 17:01:15 -05:00
xfs_inum.h xfs: cleanup shortform directory inode number handling 2011-07-08 14:35:03 +02:00
xfs_ioctl32.c xfs: clean up minor sparse warnings 2012-03-14 13:21:17 -05:00
xfs_ioctl32.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_ioctl.c xfs: Fix open flag handling in open_by_handle code 2012-03-22 15:56:52 -05:00
xfs_ioctl.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_iomap.c xfs: log file size updates as part of unwritten extent conversion 2012-03-05 11:53:16 -06:00
xfs_iomap.h xfs: kill xfs_iomap 2010-12-16 16:05:51 -06:00
xfs_iops.c xfs: clean up minor sparse warnings 2012-03-14 13:21:17 -05:00
xfs_iops.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_itable.c xfs: log timestamp updates 2012-03-13 17:01:15 -05:00
xfs_itable.h
xfs_linux.h xfs: revert to using a kthread for AIL pushing 2011-10-11 11:02:49 -05:00
xfs_log_cil.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-01-08 13:21:22 -08:00
xfs_log_priv.h xfs: split and cleanup xfs_log_reserve 2012-02-22 22:37:04 -06:00
xfs_log_recover.c xfs: add the xlog_grant_head structure 2012-02-22 22:19:53 -06:00
xfs_log_recover.h
xfs_log.c xfs: split and cleanup xfs_log_reserve 2012-02-22 22:37:04 -06:00
xfs_log.h xfs: split and cleanup xfs_log_reserve 2012-02-22 22:37:04 -06:00
xfs_message.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_message.h treewide: use __printf not __attribute__((format(printf,...))) 2011-10-31 17:30:54 -07:00
xfs_mount.c Change xfs_sb_from_disk() interface to take a mount pointer 2012-02-03 11:21:33 -06:00
xfs_mount.h xfs: use per-filesystem I/O completion workqueues 2012-03-05 11:07:42 -06:00
xfs_mru_cache.c xfs: convert to alloc_workqueue() 2011-02-01 11:42:43 +01:00
xfs_mru_cache.h
xfs_qm_bhv.c xfs: remove the global xfs_Gqm structure 2012-03-14 12:06:32 -05:00
xfs_qm_syscalls.c xfs: remove the per-filesystem list of dquots 2012-03-14 11:53:34 -05:00
xfs_qm.c xfs: remove the global xfs_Gqm structure 2012-03-14 12:06:32 -05:00
xfs_qm.h xfs: remove the global xfs_Gqm structure 2012-03-14 12:06:32 -05:00
xfs_quota_priv.h xfs: use per-filesystem radix trees for dquot lookup 2012-03-14 11:09:06 -05:00
xfs_quota.h Define new macro XFS_ALL_QUOTA_ACTIVE and simply some usage 2012-02-03 11:32:20 -06:00
xfs_quotaops.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_rename.c xfs: simplify xfs_trans_ijoin* again 2011-10-11 21:15:08 -05:00
xfs_rtalloc.c xfs: fix deadlock in xfs_rtfree_extent 2012-03-22 15:31:06 -05:00
xfs_rtalloc.h xfs: Remove the macro XFS_BUF_PTR 2011-07-25 15:03:13 -05:00
xfs_rw.c xfs: clean up xfs_ioerror_alert 2011-10-11 21:15:10 -05:00
xfs_rw.h xfs: clean up xfs_ioerror_alert 2011-10-11 21:15:10 -05:00
xfs_sb.h xfs: kill the unused XFS_BB_FSB_OFFSET macro 2012-02-02 17:08:04 -06:00
xfs_stats.c xfs: use common code for quota statistics 2012-03-14 11:09:06 -05:00
xfs_stats.h xfs: use common code for quota statistics 2012-03-14 11:09:06 -05:00
xfs_super.c xfs: introduce an allocation workqueue 2012-03-22 16:12:24 -05:00
xfs_super.h xfs: remove the global xfs_Gqm structure 2012-03-14 12:06:32 -05:00
xfs_sync.c xfs: log timestamp updates 2012-03-13 17:01:15 -05:00
xfs_sync.h xfs: log timestamp updates 2012-03-13 17:01:15 -05:00
xfs_sysctl.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_sysctl.h xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_trace.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs_trace.h xfs: use per-filesystem radix trees for dquot lookup 2012-03-14 11:09:06 -05:00
xfs_trans_ail.c xfs: cleanup xfs_log_space_wake 2012-02-22 22:17:00 -06:00
xfs_trans_buf.c xfs: remove xfs_trans_unlocked_item 2012-02-22 22:17:00 -06:00
xfs_trans_dquot.c xfs: remove the global xfs_Gqm structure 2012-03-14 12:06:32 -05:00
xfs_trans_extfree.c xfs: Pull EFI/EFD handling out from under the AIL lock 2010-12-20 11:59:49 +11:00
xfs_trans_inode.c xfs: split in-core and on-disk inode log item fields 2012-03-13 17:08:17 -05:00
xfs_trans_priv.h xfs: remove xfs_trans_unlocked_item 2012-02-22 22:17:00 -06:00
xfs_trans_space.h
xfs_trans.c xfs: split and cleanup xfs_log_reserve 2012-02-22 22:37:04 -06:00
xfs_trans.h xfs: remove the lid_size field in struct log_item_desc 2011-12-08 13:53:30 -06:00
xfs_types.h xfs: exact busy extent tracking 2011-04-28 13:18:04 -05:00
xfs_utils.c xfs: propagate umode_t 2012-01-03 22:55:00 -05:00
xfs_utils.h xfs: propagate umode_t 2012-01-03 22:55:00 -05:00
xfs_vnode.h xfs: remove remaining scraps of struct xfs_iomap 2012-03-15 13:40:16 -05:00
xfs_vnodeops.c xfs: Fix missing xfs_iunlock() on error recovery path in xfs_readlink() 2012-01-25 11:01:31 -06:00
xfs_vnodeops.h xfs: remove remaining scraps of struct xfs_iomap 2012-03-15 13:40:16 -05:00
xfs_xattr.c xfs: remove subdirectories 2011-08-12 16:21:35 -05:00
xfs.h xfs: don't expect xfs headers to be in subdirectories 2011-08-12 13:57:55 -05:00