Commit Graph

314 Commits

Author SHA1 Message Date
David Chinner f73ca1b76c [PATCH] Revert bd_mount_mutex back to a semaphore
Revert bd_mount_mutex back to a semaphore so that xfs_freeze -f /mnt/newtest;
xfs_freeze -u /mnt/newtest works safely and doesn't produce lockdep warnings.

(XFS unlocks the semaphore from a different task, by design.  The mutex
code warns about this)

Signed-off-by: Dave Chinner <dgc@sgi.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11 18:18:21 -08:00
Steven Whitehouse 1003f06953 [GFS2] Fix Kconfig
Here is a patch to fix up the Kconfig so that we don't land up with
problems when people disable the NET subsystem.  Thanks for all the hints and
suggestions that people have sent me regarding this.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: Aleksandr Koltsoff <czr@iki.fi>
Cc: Toralf Förster <toralf.foerster@gmx.de>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Adrian Bunk <bunk@stusta.de>
Cc: Chris Zubrzycki <chris@middle--earth.org>
Cc: Patrick Caulfield <pcaulfie@redhat.com>
2006-12-15 12:51:51 -05:00
Josef Sipek 81454098f7 [PATCH] struct path: convert gfs2
Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08 08:28:45 -08:00
Linus Torvalds 1c1afa3c05 Merge master.kernel.org:/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw
* master.kernel.org:/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (73 commits)
  [DLM] Clean up lowcomms
  [GFS2] Change gfs2_fsync() to use write_inode_now()
  [GFS2] Fix indent in recovery.c
  [GFS2] Don't flush everything on fdatasync
  [GFS2] Add a comment about reading the super block
  [GFS2] Mount problem with the GFS2 code
  [GFS2] Remove gfs2_check_acl()
  [DLM] fix format warnings in rcom.c and recoverd.c
  [GFS2] lock function parameter
  [DLM] don't accept replies to old recovery messages
  [DLM] fix size of STATUS_REPLY message
  [GFS2] fs/gfs2/log.c:log_bmap() fix printk format warning
  [DLM] fix add_requestqueue checking nodes list
  [GFS2] Fix recursive locking in gfs2_getattr
  [GFS2] Fix recursive locking in gfs2_permission
  [GFS2] Reduce number of arguments to meta_io.c:getbuf()
  [GFS2] Move gfs2_meta_syncfs() into log.c
  [GFS2] Fix journal flush problem
  [GFS2] mark_inode_dirty after write to stuffed file
  [GFS2] Fix glock ordering on inode creation
  ...
2006-12-07 09:13:20 -08:00
Christoph Lameter e18b890bb0 [PATCH] slab: remove kmem_cache_t
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: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:25 -08:00
Steven Whitehouse 34126f9f41 [GFS2] Change gfs2_fsync() to use write_inode_now()
This is a bit better than the previous version of gfs2_fsync()
although it would be better still if we were able to call a
function which only wrote the inode & metadata. Its no big deal
though that this will potentially write the data as well since
the VFS has already done that before calling gfs2_fsync(). I've
also added a comment to explain whats going on here.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: Andrew Morton <akpm@osdl.org>
2006-12-07 09:13:14 -05:00
Steven Whitehouse 887bc5d00c [GFS2] Fix indent in recovery.c
As per comments from Andrew Morton and Jan Engelhardt, this fixes the
indent and removes the "static" from a variable declaration since its
not needed in this case (now allocated on the stack of the function
in question).

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: Jan Engelhardt <jengelh@linux01.gwdg.de>
Cc: Andrew Morton <akpm@osdl.org>
2006-12-05 13:34:17 -05:00
David Howells 9db7372445 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:

	drivers/ata/libata-scsi.c
	include/linux/libata.h

Futher merge of Linus's head and compilation fixups.

Signed-Off-By: David Howells <dhowells@redhat.com>
2006-12-05 17:01:28 +00:00
Al Viro bd01f843c3 [PATCH] severing skbuff.h -> poll.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-12-04 02:00:31 -05:00
Steven Whitehouse 33c3de3287 [GFS2] Don't flush everything on fdatasync
The gfs2_fsync() function was doing a journal flush on each
and every call. While this is correct, its also a lot of
overhead. This patch means that on fdatasync flushes we
rely on the VFS to flush the data for us and we don't do
a journal flush unless we really need to.

We have to do a journal flush for stuffed files though because
they have the data and the inode metadata in the same block.
Journaled files also need a journal flush too of course.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:37:44 -05:00
Steven Whitehouse aac1a3c77a [GFS2] Add a comment about reading the super block
The comment explains why we use the bio functions to read
the super block.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: Andrew Morton <akpm@osdl.org>
Cc: Srinivasa Ds <srinivasa@in.ibm.com>
2006-11-30 10:37:40 -05:00
Srinivasa Ds 0da3585e1e [GFS2] Mount problem with the GFS2 code
While mounting the gfs2 filesystem,our test team had a problem and we
got this error message.
=======================================================

GFS2: fsid=: Trying to join cluster "lock_nolock", "dasde1"
GFS2: fsid=dasde1.0: Joined cluster. Now mounting FS...
GFS2: not a GFS2 filesystem
GFS2: fsid=dasde1.0: can't read superblock: -22

==========================================================================
On debugging further we found that problem is while reading the super
block(gfs2_read_super) and comparing the magic number in it.
When I  replace the submit_bio() call(present in gfs2_read_super) with
the sb_getblk() and ll_rw_block(), mount operation succeded.
On further analysis we found that before calling submit_bio(),
bio->bi_sector was set to "sector" variable. This "sector" variable has
the same value of bh->b_blocknr(block number). Hence there is a need to
multiply this valuwith (blocksize >> 9)(9 because,sector size
2^9,samething happens in ll_rw_block also, before calling submit_bio()).
So I have developed the patch which solves this problem. Please let me
know your comments.
================================================================

Signed-off-by: Srinivasa DS <srinivasa@in.ibm.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:37:36 -05:00
Steven Whitehouse 77386e1f66 [GFS2] Remove gfs2_check_acl()
As pointed out by Adrian Bunk, the gfs2_check_acl() function is no
longer used. This patch removes it and renamed gfs2_check_acl_locked()
to gfs2_check_acl() since we only need one variant of that function now.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: Adrian Bunk <bunk@stusta.de>
2006-11-30 10:37:32 -05:00
Randy Dunlap 0ac230699a [GFS2] lock function parameter
Fix function parameter typing:
fs/gfs2/glock.c💯 warning: function declaration isn't a prototype

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:37:18 -05:00
Ryusuke Konishi aed3255f22 [GFS2] fs/gfs2/log.c:log_bmap() fix printk format warning
Fix a printk format warning in fs/gfs2/log.c:
fs/gfs2/log.c:322: warning: format '%llu' expects type 'long long unsigned int', but argument 3 has type 'sector_t'

Signed-off-by: Ryusuke Konishi <ryusuke@osrg.net>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:37:04 -05:00
Steven Whitehouse dcf3dd852f [GFS2] Fix recursive locking in gfs2_getattr
The readdirplus NFS operation can result in gfs2_getattr being
called with the glock already held. In this case we do not want
to try and grab the lock again.

This fixes Red Hat bugzilla #215727

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:36:56 -05:00
Steven Whitehouse 300c7d75f3 [GFS2] Fix recursive locking in gfs2_permission
Since gfs2_permission may be called either from the VFS (in which case
we need to obtain a shared glock) or from GFS2 (in which case we already
have a glock) we need to test to see whether or not a lock is required.
The original test was buggy due to a potential race. This one should
be safe.

This fixes Red Hat bugzilla #217129

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:36:53 -05:00
Steven Whitehouse cb4c031318 [GFS2] Reduce number of arguments to meta_io.c:getbuf()
Since the superblock and the address_space are determined by the
glock, we might as well just pass that as the argument since all
the callers already have that available.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:36:50 -05:00
Steven Whitehouse a25311c8e0 [GFS2] Move gfs2_meta_syncfs() into log.c
By moving gfs2_meta_syncfs() into log.c, gfs2_ail1_start()
can be made static.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:36:45 -05:00
Steven Whitehouse b004157ab5 [GFS2] Fix journal flush problem
This fixes a bug which resulted in poor performance due to flushing
the journal too often. The code path in question was via the inode_go_sync()
function in glops.c. The solution is not to flush the journal immediately
when inodes are ejected from memory, but batch up the work for glockd to
deal with later on. This means that glocks may now live on beyond the end of
the lifetime of their inodes (but not very much longer in the normal case).

Also fixed in this patch is a bug (which was hidden by the bug mentioned above) in
calculation of the number of free journal blocks.

The gfs2_logd process has been altered to be more responsive to the journal
filling up. We now wake it up when the number of uncommitted journal blocks
has reached the threshold level rather than trying to flush directly at the
end of each transaction. This again means doing fewer, but larger, log
flushes in general.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:36:42 -05:00
Steven Whitehouse ae619320b2 [GFS2] mark_inode_dirty after write to stuffed file
Writes to stuffed files were not being marked dirty correctly.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:36:36 -05:00
Steven Whitehouse 28626e2078 [GFS2] Fix glock ordering on inode creation
The lock order here should be parent -> child rather than
numeric order.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:36:33 -05:00
Steven Whitehouse 1a14d3a68f [GFS2] Simplify glops functions
The go_sync callback took two flags, but one of them was set on every
call, so this patch removes once of the flags and makes the previously
conditional operations (on this flag), unconditional.

The go_inval callback took three flags, each of which was set on every
call to it. This patch removes the flags and makes the operations
unconditional, which makes the logic rather more obvious.

Two now unused flags are also removed from incore.h.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:36:30 -05:00
Steven Whitehouse fa2ecfc5e1 [GFS2] Fix Kconfig wrt CRC32
GFS2 requires the CRC32 library function. This was reported by
Toralf Förster.

Cc: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:36:24 -05:00
Steven Whitehouse 5e7d65cd9d [GFS2] Make sentinel dirents compatible with gfs1
When deleting directory entries, we set the inum.no_addr to zero
in a dirent when its the first dirent in a block and thus cannot
be merged into the previous dirent as is the usual case. In gfs1,
inum.no_formal_ino was used instead.

This patch changes gfs2 to set both inum.no_addr and inum.no_formal_ino
to zero. It also changes the test from just looking at inum.no_addr to
look at both inum.no_addr and inum.no_formal_ino and a sentinel is
now considered to be a dirent in which _either_ (or both) of them
is set to zero.

This resolves Red Hat bugzillas: #215809, #211465

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:36:20 -05:00
Steven Whitehouse dcd2479959 [GFS2] Remove unused function from inode.c
The gfs2_glock_nq_m_atime function is unused in so far as its only
ever called with num_gh = 1, and this falls through to the
gfs2_glock_nq_atime function, so we might as well call that directly.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:35:57 -05:00
Steven Whitehouse 175011cf6e [GFS2] Remove unused sysfs files
Four of the sysfs files are unused and can therefore be removed.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:35:53 -05:00
Steven Whitehouse 4cf1ed8144 [GFS2] Tidy up bmap & fix boundary bug
This moves the locking for bmap into the bmap function itself
rather than using a wrapper function. It also fixes a bug where
the boundary flag was set on the wrong bh. Also the flags on
the mapped bh are reset earlier in the function to ensure that
they are 100% correct on the error path.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:35:49 -05:00
Steven Whitehouse ab923031ce [GFS2] Fix memory allocation in glock.c
Change from GFP_KERNEL to GFP_NOFS as this was causing a
slow down when trying to push inodes from cache.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:35:46 -05:00
Russell Cattelan 61057c6bb3 [GFS2] Remove unused zero_readpage from stuffed_readpage
Stuffed files only consist of a maximum of
(gfs2 block size - sizeof(struct gfs2_dinode)) bytes. Since the
gfs2 block size is always less than page size, we will never see
a call to stuffed_readpage for anything other than the first page
in the file.

Signed-off-by: Russell Cattelan <cattelan@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:34:57 -05:00
Russell Cattelan 7020933156 [GFS2] Fix race in logging code
The log lock is dropped prior to io submittion, but
this exposes a hole in which the log data structures
may be going away due to a truncate.
Store the buffer head in a local pointer prior to
dropping the lock and relay on the buffer_head lock
for consitency on the buffer head.

Signed-Off-By: Russell Cattelan <cattelan@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:34:55 -05:00
Steven Whitehouse 9e2dbdac3d [GFS2] Remove gfs2_inode_attr_in
This function wasn't really doing the right thing. There was no need
to update the inode size at this point and the updating of the
i_blocks field has now been moved to the places where di_blocks is
updated. A result of this patch and some those preceeding it is that
unlocking a glock is now a much more efficient process, since there
is no longer any requirement to copy data from the gfs2 inode into
the vfs inode at this point.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:34:52 -05:00
Steven Whitehouse e7c698d74f [GFS2] Inode number is constant
Since the inode number is constant, we don't need to keep updating
it everytime we refresh the other inode fields.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:34:48 -05:00
Steven Whitehouse 6b124d8dba [GFS2] Only set inode flags when required
We were setting the inode flags from GFS2's flags far too often, even when they
couldn't possibly have changed. This patch reduces the amount of flag
setting going on so that we do it only when the inode is read in or
when the flags have changed. The create case is covered by the "when
the inode is read in" case.

This also fixes a bug where we didn't set S_SYNC correctly.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:34:45 -05:00
Steven Whitehouse 2ca99501fa [GFS2] Fix page lock/glock deadlock
This fixes a race between the glock and the page lock encountered
during truncate in gfs2_readpage and gfs2_prepare_write. The gfs2_readpages
function doesn't need the same fix since it only uses a try lock anyway, so
it will fail back to gfs2_readpage in the case of a potential deadlock.

This bug was spotted by Russell Cattelan.

Cc: Russell Cattelan <cattelan@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:34:43 -05:00
Steven Whitehouse c594d88664 [GFS2] Remove unused GL_DUMP flag
There is no way to set the GL_DUMP flag, and in any case the
same thing can be done with systemtap if required for debugging,
so this removes it.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:34:40 -05:00
Steven Whitehouse f6e58f01e8 [GFS2] Don't copy meta_header for rgrp in and out
The meta_header for an ondisk rgrp never changes, so there is no point
copying it in and back out to disk. Also there is no reason to keep
a copy for each rgrp in memory.

The code already checks to ensure that the header is correct before
it calls the routine to copy the data in, so that we don't even need
to check whether its correct on disk in the functions in ondisk.c

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:34:36 -05:00
Steven Whitehouse 294caaa3b8 [GFS2] Tidy up 0 initialisations in inode.c
We don't need to use endian conversions for 0 initialisations
when creating a new on-disk inode.

Cc: Christoph Hellwig <hch@infradead.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:34:33 -05:00
Steven Whitehouse bfded27ba0 [GFS2] Shrink gfs2_inode (8) - i_vn
This shrinks the size of the gfs2_inode by 8 bytes by
replacing the version counter with a one bit valid/invalid
flag.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:34:30 -05:00
Steven Whitehouse a9583c7983 [GFS2] Shrink gfs2_inode (7) - di_payload_format
This is almost never used. Its there for backward
compatibility with GFS1. It doesn't need its own
field since it can always be calculated from the
inode mode & flags. This saves a bit more space
in the gfs2_inode.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:34:26 -05:00
Steven Whitehouse 1a7b1eed58 [GFS2] Shrink gfs2_inode (6) - di_atime/di_mtime/di_ctime
Remove the di_[amc]time fields and use inode->i_[amc]time
fields instead. This saves 24 bytes from the gfs2_inode.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:34:23 -05:00
Steven Whitehouse 4f56110a00 [GFS2] Shrink gfs2_inode (5) - di_nlink
Remove the di_nlink field in favour of inode->i_nlink and
update the nlink handling to use the proper macros. This
saves 4 bytes.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:34:20 -05:00
Steven Whitehouse 2933f9254a [GFS2] Shrink gfs2_inode (4) - di_uid/di_gid
Remove duplicate di_uid/di_gid fields in favour of using
inode->i_uid/inode->i_gid instead. This saves 8 bytes.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:34:17 -05:00
Steven Whitehouse b60623c238 [GFS2] Shrink gfs2_inode (3) - di_mode
This removes the duplicate di_mode field in favour of using the
inode->i_mode field. This saves 4 bytes.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:34:14 -05:00
Steven Whitehouse e7f14f4d09 [GFS2] Shrink gfs2_inode (2) - di_major/di_minor
This removes the device numbers from this structure by using
inode->i_rdev instead. It also cleans up the code in gfs2_mknod.
It results in shrinking the gfs2_inode by 8 bytes.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:34:11 -05:00
Steven Whitehouse af339c0241 [GFS2] Shrink gfs2_inode (1) - di_header/di_num
The metadata header doesn't need to be stored in the incore
struct gfs2_inode since its constant, and this patch removes it.
Also, there is already a field for the inode's number in the
struct gfs2_inode, so we don't need one in struct gfs2_dinode_host
as well.

This saves 28 bytes of space in the struct gfs2_inode.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:34:07 -05:00
Steven Whitehouse 4cc14f0b88 [GFS2] Change argument to gfs2_dinode_print
Change argument for gfs2_dinode_print in order to prepare
for removal of duplicate fields between struct inode and
struct gfs2_dinode_host.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:34:03 -05:00
Steven Whitehouse ea744d01c6 [GFS2] Move gfs2_dinode_in to inode.c
gfs2_dinode_in() is only ever called from one place, so move it
to that place (in inode.c) and make it static.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:34:00 -05:00
Steven Whitehouse 891ea14712 [GFS2] Change argument to gfs2_dinode_in
This is a preliminary patch to enable the removal of fields
in gfs2_dinode_host which are duplicated in struct inode.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:33:57 -05:00
Steven Whitehouse 539e5d6b7a [GFS2] Change argument of gfs2_dinode_out
Everywhere this was called, a struct gfs2_inode was available,
but despite that, it was always called with a struct gfs2_dinode
as an argument. By making this change it paves the way to start
eliminating fields duplicated between the kernel's struct inode
and the struct gfs2_dinode.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2006-11-30 10:33:54 -05:00