Update ocfs2_should_update_atime() to understand the MNT_RELATIME flag and
to test against mtime / ctime accordingly.

[akpm@osdl.org: cleanups]
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>
Cc: Valerie Henson <val_henson@linux.intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Modify the OCFS2 handshake to ensure essential timeouts are configured
identically on all nodes.

Only allow changes when there are no connected peers

Improves the logic in o2net_advance_rx() which broke now that
sizeof(struct o2net_handshake) is greater than sizeof(struct o2net_msg)

Included is the field for userspace-heartbeat timeout to avoid the need for
further protocol changes.

Uses a global spinlock to ensure the decisions to update configfs entries
are made on the correct value.  The region covered by the spinlock when
incrementing the counter is much larger as this is the more critical case.

Small cleanup contributed by Adrian Bunk <bunk@stusta.de>
Signed-off-by: NAndrew Beekhof <abeekhof@suse.de>
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

Signed-off-by: NJosef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Allow configuration of OCFS2 timeouts from userspace via configfs
Signed-off-by: NAndrew Beekhof <abeekhof@suse.de>
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

Subsequent patches (namely userspace heartbeat and configurable timeouts)
require access to the o2nm_cluster struct.  This patch does the necessary
shuffling.
Signed-off-by: NAndrew Beekhof <abeekhof@suse.de>
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

These got a little bit out of date with ocfs2-tools, make things consistent
again. We reserve a flag for sparse allocation code as that's pretty close
to testable at this point.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

This allows users to format an ocfs2 file system with a special flag,
OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT. When the file system sees this flag, it
will not use any cluster services, nor will it require a cluster
configuration, thus acting like a 'local' file system.
Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

It would very lame to get buffer overflow via one of the following.
Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
Cc: Dave Kleikamp <shaggy@austin.ibm.com>
Cc: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Replace all uses of kmem_cache_t with struct kmem_cache.

The patch was generated using the following script:

	#!/bin/sh
	#
	# Replace one string by another in all the kernel sources.
	#

	set -e

	for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do
		quilt add $file
		sed -e "1,\$s/$1/$2/g" $file >/tmp/$$
		mv /tmp/$$ $file
		quilt refresh
	done

The script was run like this

	sh replace kmem_cache_t "struct kmem_cache"
Signed-off-by: NChristoph Lameter <clameter@sgi.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

SLAB_NOFS is an alias of GFP_NOFS.
Signed-off-by: NChristoph Lameter <clameter@sgi.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Implement .permission() in ocfs2_file_iops, ocfs2_special_file_iops and
ocfs2_dir_iops.

This helps us avoid some multi-node races with mode change and vfs
operations.
Signed-off-by: NTiger Yang <tiger.yang@oracle.com>
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

Conditionally update atime in ocfs2_file_aio_read(), ocfs2_readdir() and
ocfs2_mmap().
Signed-off-by: NTiger Yang <tiger.yang@oracle.com>
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

This patch adds the core routines for updating atime in ocfs2.
Signed-off-by: NTiger Yang <tiger.yang@oracle.com>
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

Add splice read/write support in ocfs2.

ocfs2_file_splice_read/write are very similar to ocfs2_file_aio_read/write.
Signed-off-by: NTiger Yang <tiger.yang@oracle.com>
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

Use should_remove_suid() instead.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

This is mostly a search and replace as ocfs2_journal_handle is now no more
than a container for a handle_t pointer.

ocfs2_commit_trans() becomes very straight forward, and we remove some out
of date comments / code.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

All callers either pass in NULL directly, or a local variable that is
already set to NULL.

The internals of ocfs2_start_trans() get a nice cleanup as a result.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

It is no longer used.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

This sets us up to remove handle->journal.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

Now that this is unused and all callers pass NULL, we can safely remove it.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

This is no longer used outside of journal.c
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

This gets us rid of a slab we no longer need, as well as removing the
majority of what's left on ocfs2_journal_handle.

ocfs2_commit_unstarted_handle() has no more real work to do, so remove that
function too.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

We can also delete the unused infrastructure which was once in place to
support this functionality. ocfs2_inode_private loses ip_handle and
ip_handle_list. ocfs2_journal_handle loses handle_list.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

It isn't used until ocfs2_start_trans() anyway.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

Instead we record our state on the allocation context structure which all
callers already know about and lifetime correctly. This means the
reservation functions don't need a handle passed in any more, and we can
also take it off the alloc context.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

Take and drop the locks directly.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

Take and drop the locks directly.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

Take and drop the locks directly.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

Take and drop the locks directly.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

Take and drop the locks directly.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

Take and drop the locks directly.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

Take and drop the locks directly.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

Take and drop the locks directly.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

Callers can set h_sync directly on the handle_t, whether a transaction has
been started or not can be determined via the existence of the handle_t on
the struct ocfs2_journal_handle.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

No reason to use our wrapper struct in this function, so take the handle_t
directly.

Also fixes a bug where we were incorrectly setting the handle to NULL in
case of a failure from journal_restart()
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

max_buffs was just being set and not actually used.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

This patch makes the needlessly global ocfs2_create_new_lock() static.
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

Fix up for make allyesconfig.
Signed-Off-By: NDavid Howells <dhowells@redhat.com>

The loop within ocfs2_zero_extend() can execute for a long time, causing
spurious soft lockup warnings.
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>