Commit Graph

382 Commits

Author SHA1 Message Date
Nathan Scott
d08d389d5a [XFS] Fix a possible forced shutdown due to mishandling write barriers
with remount,ro.

SGI-PV: 951944
SGI-Modid: xfs-linux-melb:xfs-kern:25742a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-05-08 19:51:28 +10:00
Jens Axboe
cbb7e577e7 [PATCH] splice: pass offset around for ->splice_read() and ->splice_write()
We need not use ->f_pos as the offset for the file input/output. If the
user passed an offset pointer in through sys_splice(), just use that and
leave ->f_pos alone.

Signed-off-by: Jens Axboe <axboe@suse.de>
2006-04-11 15:47:07 +02:00
Linus Torvalds
88dd9c16ce Merge branch 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block
* 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block:
  [PATCH] vfs: add splice_write and splice_read to documentation
  [PATCH] Remove sys_ prefix of new syscalls from __NR_sys_*
  [PATCH] splice: warning fix
  [PATCH] another round of fs/pipe.c cleanups
  [PATCH] splice: comment styles
  [PATCH] splice: add Ingo as addition copyright holder
  [PATCH] splice: unlikely() optimizations
  [PATCH] splice: speedups and optimizations
  [PATCH] pipe.c/fifo.c code cleanups
  [PATCH] get rid of the PIPE_*() macros
  [PATCH] splice: speedup __generic_file_splice_read
  [PATCH] splice: add direct fd <-> fd splicing support
  [PATCH] splice: add optional input and output offsets
  [PATCH] introduce a "kernel-internal pipe object" abstraction
  [PATCH] splice: be smarter about calling do_page_cache_readahead()
  [PATCH] splice: optimize the splice buffer mapping
  [PATCH] splice: cleanup __generic_file_splice_read()
  [PATCH] splice: only call wake_up_interruptible() when we really have to
  [PATCH] splice: potential !page dereference
  [PATCH] splice: mark the io page as accessed
2006-04-11 06:34:02 -07:00
Jeff Dike
7b04d7170e [PATCH] Add GFP_NOWAIT
Introduce GFP_NOWAIT, as an alias for GFP_ATOMIC & ~__GFP_HIGH.

This also changes XFS, which is the only in-tree user of this idiom that I
could find.  The XFS piece is compile-tested only.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Acked-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11 06:18:35 -07:00
Nathan Scott
019ff2d57b [XFS] Fix a problem in aligning inode allocations to stripe unit
boundaries.

SGI-PV: 951862
SGI-Modid: xfs-linux-melb:xfs-kern:25726a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-04-11 15:45:05 +10:00
Nathan Scott
8c0b5113a5 [XFS] Fix utime(2) in the case that no times parameter was passed in.
SGI-PV: 949858
SGI-Modid: xfs-linux-melb:xfs-kern:25717a

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-04-11 15:12:45 +10:00
David Chinner
58829e490e [XFS] Fix an inode use-after-free durin an unpin. When reclaiming inodes
that have been unlinked, we may need to execute transactions during
reclaim. By the time the transaction has hit the disk, the linux inode and
xfs vnode may already have been freed so we can't reference them safely.
Use the known xfs inode state to determine if it is safe to reference the
vnode and linux inode during the unpin operation.

SGI-PV: 946321
SGI-Modid: xfs-linux-melb:xfs-kern:25687a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-04-11 15:11:20 +10:00
David Chinner
1fc5d959d8 [XFS] Fix inode reclaim scalability regression. When a filesystem has
millions of inodes cached and has sparse cluster population, removing
inodes from the cluster hash consumes excessive amounts of CPU time.
Reduce the CPU cost by making removal O(1) via use of a double linked list
for the hash chains.

SGI-PV: 951551
SGI-Modid: xfs-linux-melb:xfs-kern:25683a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-04-11 15:11:12 +10:00
Nathan Scott
8272145c05 [XFS] Fix a writepage regression where we accidentally stopped honouring
nonblock mode with the new IO path code (since 2.6.16).

SGI-PV: 951662
SGI-Modid: xfs-linux-melb:xfs-kern:25676a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-04-11 15:10:55 +10:00
Nathan Scott
e50bd16fe4 [XFS] Fix superblock validation regression for the zero imaxpct case.
Thanks to kjamieson for noticing.

SGI-PV: 951661
SGI-Modid: xfs-linux-melb:xfs-kern:25675a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-04-11 15:10:45 +10:00
Ingo Molnar
3a326a2ce8 [PATCH] introduce a "kernel-internal pipe object" abstraction
separate out the 'internal pipe object' abstraction, and make it
usable to splice. This cleans up and fixes several aspects of the
internal splice APIs and the pipe code:

 - pipes: the allocation and freeing of pipe_inode_info is now more symmetric
   and more streamlined with existing kernel practices.

 - splice: small micro-optimization: less pointer dereferencing in splice
   methods

Signed-off-by: Ingo Molnar <mingo@elte.hu>

Update XFS for the ->splice_read/->splice_write changes.

Signed-off-by: Jens Axboe <axboe@suse.de>
2006-04-10 15:18:35 +02:00
Nathan Scott
1b895840ce [XFS] Provide XFS support for the splice syscall.
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-31 13:08:59 +10:00
Nathan Scott
3bbcc8e397 [XFS] Reenable write barriers by default.
SGI-PV: 912426
SGI-Modid: xfs-linux-melb:xfs-kern:25634a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-31 13:04:56 +10:00
Nathan Scott
9a2a7de268 [XFS] Make project quota enforcement return an error code consistent with
its use.

SGI-PV: 951300
SGI-Modid: xfs-linux-melb:xfs-kern:25633a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-31 13:04:49 +10:00
Nathan Scott
764d1f89a5 [XFS] Implement the silent parameter to fill_super, previously ignored.
SGI-PV: 951299
SGI-Modid: xfs-linux-melb:xfs-kern:25632a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-31 13:04:17 +10:00
Mandy Kirkconnell
4b4fa25ced [XFS] Cleanup comment to remove reference to obsoleted function
xfs_bmap_do_search_extents().

SGI-PV: 951415
SGI-Modid: xfs-linux-melb:xfs-kern:208491a

Signed-off-by: Mandy Kirkconnell <alkirkco@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-31 13:03:58 +10:00
Nathan Scott
c25366680b [XFS] Cleanup in XFS after recent get_block_t interface tweaks.
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-29 10:44:40 +10:00
Mandy Kirkconnell
0b7e56a450 [XFS] Remove unused/obsoleted function: xfs_bmap_do_search_extents()
SGI-PV: 951415
SGI-Modid: xfs-linux-melb:xfs-kern:208490a

Signed-off-by: Mandy Kirkconnell <alkirkco@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-29 09:53:03 +10:00
Glen Overby
3ccb8b5f65 [XFS] A change to inode chunk allocation to try allocating the new chunk
contiguous with the most recently allocated chunk.  On a striped
filesystem, this will fill a stripe unit with inodes before allocating new
inodes in another stripe unit.

SGI-PV: 951416
SGI-Modid: xfs-linux-melb:xfs-kern:208488a

Signed-off-by: Glen Overby <overby@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-29 09:52:28 +10:00
Nathan Scott
e0edd5962b [XFS] Fix compiler warning and small code inconsistencies in compat
ioctl32 land.

SGI-PV: 904196
SGI-Modid: xfs-linux-melb:xfs-kern:25590a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-29 08:55:47 +10:00
Nathan Scott
c41564b5af [XFS] We really suck at spulling. Thanks to Chris Pascoe for fixing all
these typos.

SGI-PV: 904196
SGI-Modid: xfs-linux-melb:xfs-kern:25539a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-29 08:55:14 +10:00
Arjan van de Ven
4b6f5d20b0 [PATCH] Make most file operations structs in fs/ const
This is a conversion to make the various file_operations structs in fs/
const.  Basically a regexp job, with a few manual fixups

The goal is both to increase correctness (harder to accidentally write to
shared datastructures) and reducing the false sharing of cachelines with
things that get dirty in .data (while .rodata is nicely read only and thus
cache clean)

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-28 09:16:06 -08:00
Badari Pulavarty
1d8fa7a2b9 [PATCH] remove ->get_blocks() support
Now that get_block() can handle mapping multiple disk blocks, no need to have
->get_blocks().  This patch removes fs specific ->get_blocks() added for DIO
and makes it users use get_block() instead.

Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26 08:57:01 -08:00
Badari Pulavarty
fa30bd058b [PATCH] map multiple blocks for mpage_readpages()
This patch changes mpage_readpages() and get_block() to get the disk mapping
information for multiple blocks at the same time.

b_size represents the amount of disk mapping that needs to mapped.  On the
successful get_block() b_size indicates the amount of disk mapping thats
actually mapped.  Only the filesystems who care to use this information and
provide multiple disk blocks at a time can choose to do so.

No changes are needed for the filesystems who wants to ignore this.

[akpm@osdl.org: cleanups]
Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Cc: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26 08:57:01 -08:00
Matthew Dobson
93d2341c75 [PATCH] mempool: use mempool_create_slab_pool()
Modify well over a dozen mempool users to call mempool_create_slab_pool()
rather than calling mempool_create() with extra arguments, saving about 30
lines of code and increasing readability.

Signed-off-by: Matthew Dobson <colpatch@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26 08:57:00 -08:00
NeilBrown
2ff28e22bd [PATCH] Make address_space_operations->invalidatepage return void
The return value of this function is never used, so let's be honest and
declare it as void.

Some places where invalidatepage returned 0, I have inserted comments
suggesting a BUG_ON.

[akpm@osdl.org: JBD BUG fix]
[akpm@osdl.org: rework for git-nfs]
[akpm@osdl.org: don't go BUG in block_invalidate_page()]
Signed-off-by: Neil Brown <neilb@suse.de>
Acked-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26 08:56:55 -08:00
Paul Jackson
b0196009d8 [PATCH] cpuset memory spread slab cache hooks
Change the kmem_cache_create calls for certain slab caches to support cpuset
memory spreading.

See the previous patches, cpuset_mem_spread, for an explanation of cpuset
memory spreading, and cpuset_mem_spread_slab_cache for the slab cache support
for memory spreading.

The slab caches marked for now are: dentry_cache, inode_cache, some xfs slab
caches, and buffer_head.  This list may change over time.  In particular,
other file system types that are used extensively on large NUMA systems may
want to allow for spreading their directory and inode slab cache entries.

Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:23 -08:00
Tobias Klauser
e8c96f8c29 [PATCH] fs: Use ARRAY_SIZE macro
Use ARRAY_SIZE macro instead of sizeof(x)/sizeof(x[0]) and remove a
duplicate of ARRAY_SIZE.  Some trailing whitespaces are also deleted.

Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch>
Cc: David Howells <dhowells@redhat.com>
Cc: Dave Kleikamp <shaggy@austin.ibm.com>
Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Chris Mason <mason@suse.com>
Cc: Jeff Mahoney <jeffm@suse.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Nathan Scott <nathans@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:19 -08:00
Linus Torvalds
debf798b1e Merge git://oss.sgi.com:8090/oss/git/xfs-2.6
* git://oss.sgi.com:8090/oss/git/xfs-2.6: (71 commits)
  [XFS] Sync up one/two other minor changes missed in previous merges.
  [XFS] Reenable the noikeep (delete inode cluster space) option by default.
  [XFS] Check that a page has dirty buffers before finding it acceptable for
  [XFS] Fixup naming inconsistencies found by Pekka Enberg and one from Jan
  [XFS] Explain the race closed by the addition of vn_iowait() to the start
  [XFS] Fixing the error caused by the conflict between DIO Write's
  [XFS] Fixing KDB's xrwtrc command, also added the current process id into
  [XFS] Fix compiler warning from xfs_file_compat_invis_ioctl prototype. 
  [XFS] remove bogus INT_GET for u8 variables in xfs_dir_leaf.c 
  [XFS] endianess annotations for xfs_da_node_hdr_t 
  [XFS] endianess annotations for xfs_da_node_entry_t 
  [XFS] store xfs_attr_inactive_list_t in native endian 
  [XFS] store xfs_attr_sf_sort in native endian 
  [XFS] endianess annotations for xfs_attr_shortform_t 
  [XFS] endianess annotations for xfs_attr_leaf_name_remote_t 
  [XFS] endianess annotations for xfs_attr_leaf_name_local_t 
  [XFS] endianess annotations for xfs_attr_leaf_entry_t 
  [XFS] endianess annotations for xfs_attr_leaf_hdr_t 
  [XFS] remove bogus INT_GET on u8 variables in xfs_dir2_block.c 
  [XFS] endianess annotations for xfs_da_blkinfo_t 
  ...
2006-03-23 15:28:51 -08:00
Andrew Morton
394e3902c5 [PATCH] more for_each_cpu() conversions
When we stop allocating percpu memory for not-possible CPUs we must not touch
the percpu data for not-possible CPUs at all.  The correct way of doing this
is to test cpu_possible() or to use for_each_cpu().

This patch is a kernel-wide sweep of all instances of NR_CPUS.  I found very
few instances of this bug, if any.  But the patch converts lots of open-coded
test to use the preferred helper macros.

Cc: Mikael Starvik <starvik@axis.com>
Cc: David Howells <dhowells@redhat.com>
Acked-by: Kyle McMartin <kyle@parisc-linux.org>
Cc: Anton Blanchard <anton@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: William Lee Irwin III <wli@holomorphy.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Christian Zankel <chris@zankel.net>
Cc: Philippe Elie <phil.el@wanadoo.fr>
Cc: Nathan Scott <nathans@sgi.com>
Cc: Jens Axboe <axboe@suse.de>
Cc: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-23 07:38:17 -08:00
Christoph Lameter
b20a35035f [PATCH] page migration reorg
Centralize the page migration functions in anticipation of additional
tinkering.  Creates a new file mm/migrate.c

1. Extract buffer_migrate_page() from fs/buffer.c

2. Extract central migration code from vmscan.c

3. Extract some components from mempolicy.c

4. Export pageout() and remove_from_swap() from vmscan.c

5. Make it possible to configure NUMA systems without page migration
   and non-NUMA systems with page migration.

I had to so some #ifdeffing in mempolicy.c that may need a cleanup.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-22 07:54:06 -08:00
Nathan Scott
bb19fba193 [XFS] Sync up one/two other minor changes missed in previous merges.
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-22 14:12:12 +11:00
Nathan Scott
e15f195cfb [XFS] Reenable the noikeep (delete inode cluster space) option by default.
SGI-PV: 951200
SGI-Modid: xfs-linux-melb:xfs-kern:25535a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-22 12:47:52 +11:00
David Chinner
2ddee844ee [XFS] Check that a page has dirty buffers before finding it acceptable for
rewrite clustering. This prevents writing excessive amounts of clean data
when doing random rewrites of a cached file.

SGI-PV: 951193
SGI-Modid: xfs-linux-melb:xfs-kern:25531a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-22 12:47:40 +11:00
Nathan Scott
3758dee9f6 [XFS] Fixup naming inconsistencies found by Pekka Enberg and one from Jan
Engelhardt.

SGI-PV: 947038
SGI-Modid: xfs-linux-melb:xfs-kern:25529a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-22 12:47:28 +11:00
David Chinner
38e2299a64 [XFS] Explain the race closed by the addition of vn_iowait() to the start
of xfs_itruncate_start().

SGI-PV: 947420
SGI-Modid: xfs-linux-melb:xfs-kern:25527a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-22 12:47:15 +11:00
Yingping Lu
9fa8046f50 [XFS] Fixing the error caused by the conflict between DIO Write's
conversion and concurrent truncate operations. Use vn_iowait to wait for
the completion of any pending DIOs. Since the truncate requires exclusive
IOLOCK, so this blocks any further DIO operations since DIO write also
needs exclusive IOBLOCK. This serves as a barrier and prevent any
potential starvation.

SGI-PV: 947420
SGI-Modid: xfs-linux-melb:xfs-kern:208088a

Signed-off-by: Yingping Lu <yingping@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-22 12:44:35 +11:00
Yingping Lu
f1fdc848aa [XFS] Fixing KDB's xrwtrc command, also added the current process id into
the trace.

SGI-PV: 948300
SGI-Modid: xfs-linux-melb:xfs-kern:208069a

Signed-off-by: Yingping Lu <yingping@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-22 12:44:15 +11:00
Nathan Scott
6cc8fef4cb [XFS] Fix compiler warning from xfs_file_compat_invis_ioctl prototype.
SGI-PV: 904196
SGI-Modid: xfs-linux-melb:xfs-kern:25509a

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-20 13:25:48 +11:00
Nathan Scott
b2fc6ad01b [XFS] remove bogus INT_GET for u8 variables in xfs_dir_leaf.c
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25506a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:30:01 +11:00
Nathan Scott
fac80cce0e [XFS] endianess annotations for xfs_da_node_hdr_t
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25505a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:29:56 +11:00
Nathan Scott
403432dcb5 [XFS] endianess annotations for xfs_da_node_entry_t
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25504a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:29:46 +11:00
Nathan Scott
d7929ff670 [XFS] store xfs_attr_inactive_list_t in native endian
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25503a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:29:36 +11:00
Nathan Scott
984a081a7c [XFS] store xfs_attr_sf_sort in native endian
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25502a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:29:31 +11:00
Nathan Scott
3b244aa81e [XFS] endianess annotations for xfs_attr_shortform_t
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25501a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:29:25 +11:00
Nathan Scott
c0f054e7a4 [XFS] endianess annotations for xfs_attr_leaf_name_remote_t
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25500a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:29:18 +11:00
Nathan Scott
053b5758cb [XFS] endianess annotations for xfs_attr_leaf_name_local_t
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25499a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:29:09 +11:00
Nathan Scott
6b19f2d87d [XFS] endianess annotations for xfs_attr_leaf_entry_t
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25498a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:29:02 +11:00
Nathan Scott
918ae424e1 [XFS] endianess annotations for xfs_attr_leaf_hdr_t
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25497a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:28:54 +11:00
Nathan Scott
8f44e047a0 [XFS] remove bogus INT_GET on u8 variables in xfs_dir2_block.c
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25496a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:28:47 +11:00
Nathan Scott
89da054424 [XFS] endianess annotations for xfs_da_blkinfo_t
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25495a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:28:40 +11:00
Nathan Scott
3d693c6ed7 [XFS] endianess annotations for XFS_DIR2_DATA_ENTRY_TAG_P
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25494a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:28:27 +11:00
Nathan Scott
3c1f9c1580 [XFS] endianess annotations for xfs_dir2_leaf_entry_t
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25493a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:28:18 +11:00
Nathan Scott
a818e5de7e [XFS] endianess annotations for xfs_dir2_leaf_hdr_t
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25492a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:28:07 +11:00
Nathan Scott
e922fffa41 [XFS] endianess annotations for xfs_dir2_block_tail_t
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25491a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:27:56 +11:00
Nathan Scott
1fba9f7fe2 [XFS] endianess annotations for XFS_DIR2_DATA_UNUSED_TAG_P
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25490a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:27:47 +11:00
Nathan Scott
ad354eb34e [XFS] endianess annotations for xfs_dir2_data_unused_t
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25489a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:27:37 +11:00
Nathan Scott
afbcb3f919 [XFS] endianess annotations for xfs_dir2_leaf_tail_t
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25487a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:27:28 +11:00
Nathan Scott
68b3a1024a [XFS] endianess annotations for XFS_DIR2_LEAF_BESTS_P
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25486a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:27:19 +11:00
Nathan Scott
0ba962ef71 [XFS] endianess annotations for xfs_dir2_free_hdr_t
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25485a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:27:07 +11:00
Nathan Scott
70e73f5975 [XFS] endianess annotations for xfs_dir2_data_hdr structure.
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25484a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:26:52 +11:00
Nathan Scott
9cea236492 [XFS] Flush and invalidate dirty pages at the start of a direct read also,
else we can hit a delalloc-extents-via-direct-io BUG.

SGI-PV: 949916
SGI-Modid: xfs-linux-melb:xfs-kern:25483a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:26:41 +11:00
Nathan Scott
ce9d37c257 [XFS] Merge Yingpings fix for a vn_count assert failure during QA -
another ENOSPC condition.

SGI-PV: 950784
SGI-Modid: xfs-linux-melb:xfs-kern:25482a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:26:34 +11:00
Nathan Scott
238f4c5468 [XFS] Make couple names consitent, be more defensive on releasepage (and
prep for nobh, someday, maybe).

SGI-PV: 904196
SGI-Modid: xfs-linux-melb:xfs-kern:25481a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:26:25 +11:00
Nathan Scott
a13828b167 [XFS] Cleanup references to i_sem.
SGI-PV: 904196
SGI-Modid: xfs-linux-melb:xfs-kern:25480a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:26:14 +11:00
Nathan Scott
b12dd34298 [XFS] Fix an infinite loop issue in bulkstat when a corrupt inode is
detected.  Thanks to Roger Willcocks.

SGI-PV: 951054
SGI-Modid: xfs-linux-melb:xfs-kern:25477a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:26:04 +11:00
Nathan Scott
2ddd5928d0 [XFS] Correct the dquot reservation component for the link transation.
SGI-PV: 904196
SGI-Modid: xfs-linux-melb:xfs-kern:25476a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:25:46 +11:00
Nathan Scott
ec86dc02fd [XFS] Complete transition away from linvfs naming convention, finally.
SGI-PV: 947038
SGI-Modid: xfs-linux-melb:xfs-kern:25474a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:25:36 +11:00
Mandy Kirkconnell
8867bc9bf0 [XFS] There are a few problems with the new
xfs_bmap_search_multi_extents() wrapper function that I introduced in mod
xfs-linux:xfs-kern:207393a. The function was added as a wrapper around
xfs_bmap_do_search_extents() to avoid breaking the top-of-tree CXFS
interface.  The idea of the function was basically to extract the target
extent buffer (if muli- level extent allocation mode), then call
xfs_bmap_do_search_extents() with either a pointer to the first extent in
the target buffer or a pointer to the first extent in the file, depending
on which extent mode was being used.  However, in addition to locating the
target extent record for block bno, xfs_bmap_do_search_extents() also sets
four parameters needed by the caller: *lastx, *eofp, *gotp, *prevp. 
Passing only the target extent buffer to xfs_bmap_do_search_extents()
causes *eofp to be set incorrectly if the extent is at the end of the
target list but there are actually more extents in the next er_extbuf.
Likewise, if the extent is the first one in the buffer but NOT the first
in the file, *prevp is incorrectly set to NULL.  Adding the needed
functionality to xfs_bmap_search_multi_extents() to re-set any incorrectly
set fields is redundant and makes the call to xfs_bmap_do_search_extents()
not make much sense when multi-level extent allocation mode is being used.
 This mod basically extracts the two functional components from
xfs_bmap_do_search_extents(), with the intent of obsoleting/removing
xfs_bmap_do_search_extents() after the CXFS mult-level in-core extent
changes are checked in.  The two components are:  1) The binary search to
locate the target extent record, and 2) Setting the four parameters needed
by the caller (*lastx, *eofp, *gotp, *prevp).  Component 1: I created a
new function in xfs_inode.c called xfs_iext_bno_to_ext(), which executes
the binary search to find the target extent record.
xfs_bmap_search_multi_extents() has been modified to call
xfs_iext_bno_to_ext() rather than xfs_bmap_do_search_extents().  Component
2: The parameter setting functionality has been added to
xfs_bmap_search_multi_extents(), eliminating the need for
xfs_bmap_do_search_extents().  These changes make the removal of
xfs_bmap_do_search_extents() trival once the CXFS changes are in place. 
They also allow us to maintain the current XFS interface, using the new
search function introduced in mod xfs-linux:xfs-kern:207393a.

SGI-PV: 928864
SGI-Modid: xfs-linux-melb:xfs-kern:207866a

Signed-off-by: Mandy Kirkconnell <alkirkco@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-17 17:25:04 +11:00
Nathan Scott
524fbf5dd1 [XFS] Revert kiocb and vattr stack changes, theory is the AIO rework will
help here and vattr may be small enough.

SGI-PV: 947312
SGI-Modid: xfs-linux-melb:xfs-kern:25423a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 14:07:53 +11:00
Nathan Scott
f30a121111 [XFS] Dynamically allocate the xfs_dinode_core_t structure to reduce our
stack footprint in xfs_ialloc_ag_alloc.

SGI-PV: 947312
SGI-Modid: xfs-linux-melb:xfs-kern:25420a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 14:07:36 +11:00
Mandy Kirkconnell
f020b67f3c [XFS] Fix assert to check that in-core extents are inline only.
SGI-PV: 950678
SGI-Modid: xfs-linux-melb:xfs-kern:207634a

Signed-off-by: Mandy Kirkconnell <alkirkco@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 14:07:24 +11:00
Nathan Scott
a50cd26926 [XFS] Switch over from linvfs names for sb/quotactl operations for
consistent naming.

SGI-PV: 950556
SGI-Modid: xfs-linux-melb:xfs-kern:25382a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 14:06:18 +11:00
Nathan Scott
416c6d5bcf [XFS] Switch over from linvfs names for inode operations for consistent
naming.

SGI-PV: 950556
SGI-Modid: xfs-linux-melb:xfs-kern:25381a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 14:00:51 +11:00
Nathan Scott
3562fd4565 [XFS] Switch over from linvfs names for file operations for consistent
naming.

SGI-PV: 950556
SGI-Modid: xfs-linux-melb:xfs-kern:25379a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 14:00:35 +11:00
Nathan Scott
e4c573bb6a [XFS] Switch over from linvfs names for address space ops for consistent
naming.

SGI-PV: 950556
SGI-Modid: xfs-linux-melb:xfs-kern:25378a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:54:26 +11:00
Nathan Scott
b8b0f54656 [XFS] Remove a couple of no-longer-used macros/types from XFS.
SGI-PV: 950556
SGI-Modid: xfs-linux-melb:xfs-kern:25377a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:47:32 +11:00
Nathan Scott
a365bdd5e8 [XFS] Reduce stack usage within xfs_bmapi by rearranging some code,
splitting realtime/btree allocators apart.  Based on Glens original
patches.

SGI-PV: 947312
SGI-Modid: xfs-linux-melb:xfs-kern:25372a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:34:16 +11:00
Nathan Scott
39269e29d4 [XFS] Reduce xfs_bmapi stack use by removing some local state variables,
and directly testing flags instead.

SGI-PV: 947312
SGI-Modid: xfs-linux-melb:xfs-kern:25370a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:33:50 +11:00
Nathan Scott
220b528413 [XFS] Dynamically allocate vattr in places it makes sense to do so, to
reduce stack use.  Also re-use vattr in some places so that multiple
copies are not held on-stack.

SGI-PV: 947312
SGI-Modid: xfs-linux-melb:xfs-kern:25369a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:33:36 +11:00
Nathan Scott
9b94c2eddf [XFS] Take a dentry structure off the stack into the data segment.
SGI-PV: 947312
SGI-Modid: xfs-linux-melb:xfs-kern:25361a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:32:54 +11:00
Nathan Scott
8f79405527 [XFS] Reduce complexity in xfs_trans_init by pushing complex macros out
into functions and hence reduce the stack footprint there.

SGI-PV: 947312
SGI-Modid: xfs-linux-melb:xfs-kern:25360a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:32:41 +11:00
Nathan Scott
f6d75cbed9 [XFS] Dynamically allocate xfs_dir2_put_args_t structure to reduce stack
pressure in xfs_dir2_leaf_getdents routine.

SGI-PV: 947312
SGI-Modid: xfs-linux-melb:xfs-kern:25359a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:32:24 +11:00
Nathan Scott
1f6553f9f9 [XFS] Dynamically allocate local kiocb structures in readv/writev routines
to reduce stack footprint.

SGI-PV: 947312
SGI-Modid: xfs-linux-melb:xfs-kern:25358a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:30:48 +11:00
Mandy Kirkconnell
0293ce3a9f [XFS] 929045 567344 This mod introduces multi-level in-core file extent
functionality, building upon the new layout introduced in mod
xfs-linux:xfs-kern:207390a.  The new multi-level extent allocations are
only required for heavily fragmented files, so the old-style linear extent
list is used on files until the extents reach a pre-determined size of 4k.
4k buffers are used because this is the system page size on Linux i386 and
systems with larger page sizes don't seem to gain much, if anything, by
using their native page size as the extent buffer size. Also, using 4k
extent buffers everywhere provides a consistent interface for CXFS across
different platforms.  The 4k extent buffers are managed by an indirection
array (xfs_ext_irec_t) which is basically just a pointer array with a bit
of extra information to keep track of the number of extents in each buffer
as well as the extent offset of each buffer.  Major changes include:  -
Add multi-level in-core file extent functionality to the xfs_iext_  
subroutines introduced in mod:	xfs-linux:xfs-kern:207390a  - Introduce 13
new subroutines which add functionality for multi-level   in-core file
extents:	 xfs_iext_add_indirect_multi()	      
xfs_iext_remove_indirect()	   xfs_iext_realloc_indirect()	      
xfs_iext_indirect_to_direct()	      xfs_iext_bno_to_irec()	    
xfs_iext_idx_to_irec()	       xfs_iext_irec_init()	   
xfs_iext_irec_new()	    xfs_iext_irec_remove()	  
xfs_iext_irec_compact() 	xfs_iext_irec_compact_pages()	     
xfs_iext_irec_compact_full()	     xfs_iext_irec_update_extoffs()

SGI-PV: 928864
SGI-Modid: xfs-linux-melb:xfs-kern:207393a

Signed-off-by: Mandy Kirkconnell <alkirkco@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:30:23 +11:00
Mandy Kirkconnell
4eea22f01b [XFS] 929045 567344 This mod re-organizes some of the in-core file extent
code to prepare for an upcoming mod which will introduce multi-level
in-core extent allocations. Although the in-core extent management is
using a new code path in this mod, the functionality remains the same. 
Major changes include:	- Introduce 10 new subroutines which re-orgainze
the existing code but	do NOT change functionality:	    
xfs_iext_get_ext()	   xfs_iext_insert()	     xfs_iext_add()	  
 xfs_iext_remove()	   xfs_iext_remove_inline()	   
xfs_iext_remove_direct()	 xfs_iext_realloc_direct()	  
xfs_iext_direct_to_inline()	    xfs_iext_inline_to_direct()        
xfs_iext_destroy() - Remove 2 subroutines (functionality moved to new
subroutines above):	    xfs_iext_realloc() -replaced by xfs_iext_add()
and xfs_iext_remove()	      xfs_bmap_insert_exlist() - replaced by
xfs_iext_insert()	  xfs_bmap_delete_exlist() - replaced by
xfs_iext_remove() - Replace all hard-coded (indexed) extent assignments
with a call to	 xfs_iext_get_ext() - Replace all extent record pointer
arithmetic (ep++, ep--, base + lastx,..)   with calls to
xfs_iext_get_ext() - Update comments to remove the idea of a single
"extent list" and   introduce "extent record" terminology instead

SGI-PV: 928864
SGI-Modid: xfs-linux-melb:xfs-kern:207390a

Signed-off-by: Mandy Kirkconnell <alkirkco@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:29:52 +11:00
Nathan Scott
9f989c9455 [XFS] Additional mount time superblock validation checks.
SGI-PV: 950491
SGI-Modid: xfs-linux-melb:xfs-kern:25354a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:29:32 +11:00
David Chinner
01e1b69cfc [XFS] using a spinlock per cpu for superblock counter exclusion results in
a preēmpt counter overflow at 256p and above. Change the exclusion
mechanism to use atomic bit operations and busy wait loops to emulate the
spin lock exclusion mechanism but without the preempt count issues.

SGI-PV: 950027
SGI-Modid: xfs-linux-melb:xfs-kern:25338a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:29:16 +11:00
Nathan Scott
87cbc49cd4 [XFS] Add xfs_map_buffer helper, use it in a couple of places.
SGI-PV: 950211
SGI-Modid: xfs-linux-melb:xfs-kern:25312a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:26:43 +11:00
Nathan Scott
f51623b21f [XFS] Move some code around to avoid prototypes and prep for future
writepages code. 

SGI-PV: 950211
SGI-Modid: xfs-linux-melb:xfs-kern:25311a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:26:27 +11:00
Nathan Scott
02d7c92334 [XFS] Use XFS_VFSTOM in more places instead of open coding it.
SGI-PV: 947206
SGI-Modid: xfs-linux-melb:xfs-kern:25310a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:26:09 +11:00
Tim Shimmin
fcce0f1f9a [XFS] forgot a couple of calls to XLOG_VEC_SET_TYPE when porting from irix
to linux.

SGI-PV: 931456
SGI-Modid: xfs-linux-melb:xfs-kern:25238a

Signed-off-by: Tim Shimmin <tes@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:25:02 +11:00
Nathan Scott
a780143ea5 [XFS] UUID endianess fix. uu_timelow is a 32bit field and needs to be
swapped with be32_to_cpu. 

SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:25232a

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:24:46 +11:00
David Chinner
e8234a6871 [XFS] Add support for hotplug CPUs to the per-CPU superblock counters by
registering a notifier callback that listens to CPU up/down events to
modify the counters appropriately.

SGI-PV: 949726
SGI-Modid: xfs-linux-melb:xfs-kern:25214a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:23:52 +11:00
Nathan Scott
2d0f864be3 [XFS] Make headers compile for more compiler variants; minor cleanup.
SGI-PV: 949432
SGI-Modid: xfs-linux-melb:xfs-kern:25184a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:20:33 +11:00
Nathan Scott
d2c32edf64 [XFS] When compiling with gcc 4.0 and CONFIG_SMP unset, there are many
warnings along the lines: xfs_linux.h:103:5: warning: "CONFIG_SMP" is not
defined. 

SGI-PV: 946630
SGI-Modid: xfs-linux-melb:xfs-kern:25171a

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:20:13 +11:00
Nathan Scott
e0cc2325d1 [XFS] Flag the XFS inode cache as in need of spreading also.
SGI-PV: 949073
SGI-Modid: xfs-linux-melb:xfs-kern:25170a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:19:55 +11:00
Nathan Scott
20722a9192 [XFS] Fix a mutex_destroy diagnostic about a locked-mutex-on-destroy from
quota code.

SGI-PV: 949149
SGI-Modid: xfs-linux-melb:xfs-kern:25123a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:19:08 +11:00
Nathan Scott
8758280fcc [XFS] Cleanup the use of zones/slabs, more consistent and allows flags to
be passed.

SGI-PV: 949073
SGI-Modid: xfs-linux-melb:xfs-kern:25122a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:18:19 +11:00
David Chinner
8d280b98cf [XFS] On machines with more than 8 cpus, when running parallel I/O
threads, the incore superblock lock becomes the limiting factor for
buffered write throughput. Make the contended fields in the incore
superblock use per-cpu counters so that there is no global lock to limit
scalability.

SGI-PV: 946630
SGI-Modid: xfs-linux-melb:xfs-kern:25106a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14 13:13:09 +11:00