the trace.

SGI-PV: 948300
SGI-Modid: xfs-linux-melb:xfs-kern:208069a
Signed-off-by: NYingping Lu <yingping@sgi.com>
Signed-off-by: NNathan Scott <nathans@sgi.com>

SGI-PV: 904196
SGI-Modid: xfs-linux-melb:xfs-kern:25509a
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NNathan Scott <nathans@sgi.com>

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: NNathan Scott <nathans@sgi.com>

another ENOSPC condition.

SGI-PV: 950784
SGI-Modid: xfs-linux-melb:xfs-kern:25482a
Signed-off-by: NNathan Scott <nathans@sgi.com>

prep for nobh, someday, maybe).

SGI-PV: 904196
SGI-Modid: xfs-linux-melb:xfs-kern:25481a
Signed-off-by: NNathan Scott <nathans@sgi.com>

SGI-PV: 904196
SGI-Modid: xfs-linux-melb:xfs-kern:25480a
Signed-off-by: NNathan Scott <nathans@sgi.com>

SGI-PV: 947038
SGI-Modid: xfs-linux-melb:xfs-kern:25474a
Signed-off-by: NNathan Scott <nathans@sgi.com>

help here and vattr may be small enough.

SGI-PV: 947312
SGI-Modid: xfs-linux-melb:xfs-kern:25423a
Signed-off-by: NNathan Scott <nathans@sgi.com>

consistent naming.

SGI-PV: 950556
SGI-Modid: xfs-linux-melb:xfs-kern:25382a
Signed-off-by: NNathan Scott <nathans@sgi.com>

naming.

SGI-PV: 950556
SGI-Modid: xfs-linux-melb:xfs-kern:25381a
Signed-off-by: NNathan Scott <nathans@sgi.com>

naming.

SGI-PV: 950556
SGI-Modid: xfs-linux-melb:xfs-kern:25379a
Signed-off-by: NNathan Scott <nathans@sgi.com>

naming.

SGI-PV: 950556
SGI-Modid: xfs-linux-melb:xfs-kern:25378a
Signed-off-by: NNathan Scott <nathans@sgi.com>

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: NNathan Scott <nathans@sgi.com>

SGI-PV: 947312
SGI-Modid: xfs-linux-melb:xfs-kern:25361a
Signed-off-by: NNathan Scott <nathans@sgi.com>

to reduce stack footprint.

SGI-PV: 947312
SGI-Modid: xfs-linux-melb:xfs-kern:25358a
Signed-off-by: NNathan Scott <nathans@sgi.com>

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: NDavid Chinner <dgc@sgi.com>
Signed-off-by: NNathan Scott <nathans@sgi.com>

SGI-PV: 950211
SGI-Modid: xfs-linux-melb:xfs-kern:25312a
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NNathan Scott <nathans@sgi.com>

writepages code. 

SGI-PV: 950211
SGI-Modid: xfs-linux-melb:xfs-kern:25311a
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NNathan Scott <nathans@sgi.com>

SGI-PV: 947206
SGI-Modid: xfs-linux-melb:xfs-kern:25310a
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NNathan Scott <nathans@sgi.com>

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: NDavid Chinner <dgc@sgi.com>
Signed-off-by: NNathan Scott <nathans@sgi.com>

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: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NNathan Scott <nathans@sgi.com>

SGI-PV: 949073
SGI-Modid: xfs-linux-melb:xfs-kern:25170a
Signed-off-by: NNathan Scott <nathans@sgi.com>

be passed.

SGI-PV: 949073
SGI-Modid: xfs-linux-melb:xfs-kern:25122a
Signed-off-by: NNathan Scott <nathans@sgi.com>

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: NDavid Chinner <dgc@sgi.com>
Signed-off-by: NNathan Scott <nathans@sgi.com>

actually use it.  Kill this dead code.	Signed-off-by: Christoph Hellwig
<hch@lst.de>

SGI-PV: 904196
SGI-Modid: xfs-linux-melb:xfs-kern:25086a
Signed-off-by: NNathan Scott <nathans@sgi.com>

is provided by a vector through the superblock export operations when the
filesystem is exported by NFS. The fix is to call that vector instead of
using the exported symbol directly.

SGI-PV: 948858
SGI-Modid: xfs-linux-melb:xfs-kern:25062a
Signed-off-by: NDavid Chinner <dgc@sgi.com>
Signed-off-by: NNathan Scott <nathans@sgi.com>

obscure corruption case

SGI-PV: 942658
SGI-Modid: xfs-linux-melb:xfs-kern:207119a
Signed-off-by: NEric Sandeen <sandeen@sgi.com>
Signed-off-by: NNathan Scott <nathans@sgi.com>

SGI-PV: 949214
SGI-Modid: xfs-linux-melb:xfs-kern:25136a
Signed-off-by: NNathan Scott <nathans@sgi.com>

the clustering of extra pages in a buffered write.

SGI-PV: 949210
SGI-Modid: xfs-linux-melb:xfs-kern:25130a
Signed-off-by: NDavid Chinner <dgc@sgi.com>
Signed-off-by: NNathan Scott <nathans@sgi.com>

Migrate a page with buffers without requiring writeback

This introduces a new address space operation migratepage() that may be used
by a filesystem to implement its own version of page migration.

A version is provided that migrates buffers attached to pages.  Some
filesystems (ext2, ext3, xfs) are modified to utilize this feature.

The swapper address space operation are modified so that a regular
migrate_page() will occur for anonymous pages without writeback (migrate_pages
forces every anonymous page to have a swap entry).
Signed-off-by: NMike Kravetz <kravetz@us.ibm.com>
Signed-off-by: NChristoph Lameter <clameter@sgi.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

occur during log replay.  Novell bug 145204, Fedora bug 177848.

SGI-PV: 948860
SGI-Modid: xfs-linux-melb:xfs-kern:25064a
Signed-off-by: NNathan Scott <nathans@sgi.com>

creation due to ENOSPC. The current solution removes the inode when the
attribute insertion fails. Long term solution would be to make the inode
creation and attribute insertion atomic.

SGI-PV: 947610
SGI-Modid: xfs-linux-melb:xfs-kern:205193a
Signed-off-by: NYingping Lu <yingping@sgi.com>
Signed-off-by: NNathan Scott <nathans@sgi.com>

a page while we are still submitting other buffers on the same page for
I/O.

SGI-PV: 948197
SGI-Modid: xfs-linux-melb:xfs-kern:25004a
Signed-off-by: NDavid Chinner <dgc@sgi.com>
Signed-off-by: NNathan Scott <nathans@sgi.com>

Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NNathan Scott <nathans@sgi.com>

Signed-off-by: NNathan Scott <nathans@sgi.com>

context.

SGI-PV: 946762
SGI-Modid: xfs-linux-melb:xfs-kern:24983a
Signed-off-by: NNathan Scott <nathans@sgi.com>

fs: Use <linux/capability.h> where capable() is used.
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>
Acked-by: NTim Schmielau <tim@physik3.uni-rostock.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

- Move capable() from sched.h to capability.h;

- Use <linux/capability.h> where capable() is used
	(in include/, block/, ipc/, kernel/, a few drivers/,
	mm/, security/, & sound/;
	many more drivers/ to go)
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Thanks to Yamamoto Takashi.

SGI-PV: 947953
SGI-Modid: xfs-linux-melb:xfs-kern:24962a
Signed-off-by: NNathan Scott <nathans@sgi.com>

SGI-PV: 946679
SGI-Modid: xfs-linux-melb:xfs-kern:24899a
Signed-off-by: NNathan Scott <nathans@sgi.com>