On Thu, Feb 22, 2007 at 04:58:28PM -0500, J. Bruce Fields wrote:
> I'm also curious--exposing my total ignorance of the dlm--why taking
> such a lock would always be so expensive, or would always be required on
> open. Surely the typical case should be one where there's no conflict
> and never has
On Tue, Feb 20, 2007 at 03:51:54PM -0500, [EMAIL PROTECTED] wrote:
> > On Tue, Feb 20, 2007 at 10:46:51AM -0500, Robert Rappaport wrote:
> > We did an experimental distributed lease implementation in gfs(1) a while
> > ago. It worked, but was so extremely expensive that there was no point in
> > c
On Tue, Feb 20, 2007 at 10:46:51AM -0500, Robert Rappaport wrote:
> Thank you both for your helpful replies. In particular, the addition
> of the calls to file system specific functions in routines,
> fcntl_setlease() and break_lease(), as well as the modifications to
> the file_operations and ino
On Wed, Dec 06, 2006 at 05:00:29PM -0500, J. Bruce Fields wrote:
> On Wed, Dec 06, 2006 at 03:42:31PM -0600, David Teigland wrote:
> > Oh yeah, that's painful, I knew it sounded too easy.
>
> Yeah. Well, we could try to teach GFS2 to reliably cancel posix locks.
> I think
On Wed, Dec 06, 2006 at 04:23:47PM -0500, J. Bruce Fields wrote:
> On Wed, Dec 06, 2006 at 02:58:22PM -0600, David Teigland wrote:
> > On Wed, Dec 06, 2006 at 02:57:22PM -0500, J. Bruce Fields wrote:
> > > The more annoying problem is the need to cancel the GFS lock when
> &g
On Wed, Dec 06, 2006 at 02:57:22PM -0500, J. Bruce Fields wrote:
> On Wed, Dec 06, 2006 at 09:49:51AM -0600, David Teigland wrote:
> > The gfs side looks fine to me. Did you forget to call fl_notify from
> > gdlm_plock_callback() or am I missing something?
>
> Yes, looks lik
On Wed, Dec 06, 2006 at 12:34:20AM -0500, J. Bruce Fields wrote:
> +int gdlm_plock_callback(struct plock_op *op)
> +{
> + struct file *file;
> + struct file_lock *fl;
> + int rv;
> +
> + spin_lock(&ops_lock);
> + if (!list_empty(&op->list)) {
> + printk(KERN_INFO "pl
On Thu, Sep 01, 2005 at 01:35:23PM +0200, Arjan van de Ven wrote:
> +static inline void glock_put(struct gfs2_glock *gl)
> +{
> + if (atomic_read(&gl->gl_count) == 1)
> + gfs2_glock_schedule_for_reclaim(gl);
> + gfs2_assert(gl->gl_sbd, atomic_read(&gl->gl_count) > 0,);
> + a
On Mon, Sep 05, 2005 at 02:19:48AM -0700, Andrew Morton wrote:
> David Teigland <[EMAIL PROTECTED]> wrote:
> > Four functions:
> > create_lockspace()
> > release_lockspace()
> > lock()
> > unlock()
>
> Neat. I'd be inclined to make them
On Mon, Sep 05, 2005 at 01:54:08AM -0700, Andrew Morton wrote:
> David Teigland <[EMAIL PROTECTED]> wrote:
> >
> > We export our full dlm API through read/write/poll on a misc device.
> >
>
> inotify did that for a while, but we ended up going with a straight sys
On Mon, Sep 05, 2005 at 10:58:08AM +0200, J?rn Engel wrote:
> #define gfs2_assert(sdp, assertion) do { \
> if (unlikely(!(assertion))) { \
> printk(KERN_ERR "GFS2: fsid=\n", (sdp)->sd_fsname); \
> BUG();
On Thu, Sep 01, 2005 at 01:35:23PM +0200, Arjan van de Ven wrote:
> +static unsigned int handle_roll(atomic_t *a)
> +{
> + int x = atomic_read(a);
> + if (x < 0) {
> + atomic_set(a, 0);
> + return 0;
> + }
> + return (unsigned int)x;
> +}
>
> this is just p
On Thu, Sep 01, 2005 at 01:35:23PM +0200, Arjan van de Ven wrote:
> +void gfs2_glock_hold(struct gfs2_glock *gl)
> +{
> + glock_hold(gl);
> +}
>
> eh why?
You removed the comment stating exactly why, see below. If that's not a
accepted technique in the kernel, say so and I'll be happy to ch
On Sat, Sep 03, 2005 at 10:41:40PM -0700, Andrew Morton wrote:
> Joel Becker <[EMAIL PROTECTED]> wrote:
> >
> > > What happens when we want to add some new primitive which has no
> > > posix-file analog?
> >
> > The point of dlmfs is not to express every primitive that the
> > DLM has. dlm
On Fri, Sep 02, 2005 at 10:28:21PM -0700, Greg KH wrote:
> On Fri, Sep 02, 2005 at 05:44:03PM +0800, David Teigland wrote:
> > On Thu, Sep 01, 2005 at 01:35:23PM +0200, Arjan van de Ven wrote:
> >
> > > + gfs2_assert(gl->gl_sbd, atomic_read(&gl->gl_count) >
On Sat, Sep 03, 2005 at 08:14:00AM +0200, Arjan van de Ven wrote:
> On Sat, 2005-09-03 at 13:18 +0800, David Teigland wrote:
> > On Thu, Sep 01, 2005 at 01:21:04PM -0700, Andrew Morton wrote:
> > > Alan Cox <[EMAIL PROTECTED]> wrote:
> > > > > - Why GFS is
On Thu, Sep 01, 2005 at 01:21:04PM -0700, Andrew Morton wrote:
> Alan Cox <[EMAIL PROTECTED]> wrote:
> > > - Why GFS is better than OCFS2, or has functionality which OCFS2 cannot
> > > possibly gain (or vice versa)
> > >
> > > - Relative merits of the two offerings
> >
> > You missed the import
On Thu, Sep 01, 2005 at 01:35:23PM +0200, Arjan van de Ven wrote:
> + gfs2_assert(gl->gl_sbd, atomic_read(&gl->gl_count) > 0,);
> what is gfs2_assert() about anyway? please just use BUG_ON directly
> everywhere
When a machine has many gfs file systems mounted at once it can be useful
to know
On Thu, Sep 01, 2005 at 06:56:03PM +0100, Christoph Hellwig wrote:
> Whether the gfs2 code is mergeable is a completely different question,
> and it seems at least debatable to submit a filesystem for inclusion
I actually asked what needs to be done for merging. We appreciate the
feedback and ar
On Thu, Sep 01, 2005 at 04:19:34PM +0200, Arjan van de Ven wrote:
> > +/* Endian functions */
>
> e again why??
> Why is this a compiletime hack?
> Either you care about either-endian on disk, at which point it has to be
> a runtime thing, or you make the on disk layout fixed endian, at whic
Code that handles directory operations.
Signed-off-by: Ken Preslan <[EMAIL PROTECTED]>
Signed-off-by: David Teigland <[EMAIL PROTECTED]>
---
fs/gfs2/dir.c | 2158 ++
fs/gfs2/dir.h | 51 +
2 files changed, 2209 insertions(
Code that manages block allocation.
Signed-off-by: Ken Preslan <[EMAIL PROTECTED]>
Signed-off-by: David Teigland <[EMAIL PROTECTED]>
---
fs/gfs2/bits.c | 179 +++
fs/gfs2/bits.h | 28 +
fs/gfs2/rgrp.c | 1374 +
fs
Central header files that are widely used.
Signed-off-by: Ken Preslan <[EMAIL PROTECTED]>
Signed-off-by: David Teigland <[EMAIL PROTECTED]>
---
fs/gfs2/gfs2.h | 77 +++
fs/gfs2/incore.h| 691 +++
include/linux/gfs2_ioctl.h | 3
The lock_harness module allows a gfs file system to connect to a given
lock module.
Signed-off-by: Ken Preslan <[EMAIL PROTECTED]>
Signed-off-by: David Teigland <[EMAIL PROTECTED]>
---
fs/gfs2/locking/harness/Makefile |3
fs/gfs2/locking/harness/lm_interf
The lock_nolock module does no inter-node locking and allows gfs to be
used as a local file system.
Signed-off-by: Ken Preslan <[EMAIL PROTECTED]>
Signed-off-by: David Teigland <[EMAIL PROTECTED]>
---
fs/gfs2/locking/nolock/Makefile |3
fs/gfs2/locking/nolock/mai
Add gfs to the build system and gfs2.txt to Documentation.
Signed-off-by: Ken Preslan <[EMAIL PROTECTED]>
Signed-off-by: David Teigland <[EMAIL PROTECTED]>
---
Documentation/filesystems/gfs2.txt | 194 +
fs/Kconfig |
Code that handles extended attributes and ACL's.
Signed-off-by: Ken Preslan <[EMAIL PROTECTED]>
Signed-off-by: David Teigland <[EMAIL PROTECTED]>
---
fs/gfs2/acl.c | 313 ++
fs/gfs2/acl.h | 37 +
fs/gfs2/eaops.c | 179 ++
fs/gfs2/eaops.h | 30 +
fs/gf
A per-node on-disk log is used for recovery.
Signed-off-by: Ken Preslan <[EMAIL PROTECTED]>
Signed-off-by: David Teigland <[EMAIL PROTECTED]>
---
fs/gfs2/log.c | 670 +
fs/gfs2/log.h | 68 +
fs/gfs2/recov
Code that deals with quotas.
Signed-off-by: Ken Preslan <[EMAIL PROTECTED]>
Signed-off-by: David Teigland <[EMAIL PROTECTED]>
---
fs/gfs2/lvb.c | 61 ++
fs/gfs2/lvb.h | 28 +
fs/gfs2/quota.c | 1209
fs/gfs2/quota.h
The lock_dlm module uses the DLM in linux/drivers/dlm/ for inter-node
locking.
Signed-off-by: Ken Preslan <[EMAIL PROTECTED]>
Signed-off-by: David Teigland <[EMAIL PROTECTED]>
---
fs/gfs2/locking/dlm/Makefile |3
fs/gfs2/locking/dlm/lock.
There are a variety of mount options, tunable parameters, internal
statistics, and methods of online file system manipulation.
Signed-off-by: Ken Preslan <[EMAIL PROTECTED]>
Signed-off-by: David Teigland <[EMAIL PROTECTED]>
---
fs/gfs2/ioc
Hi, this is the latest set of gfs patches, it includes some minor munging
since the previous set. Andrew, could this be added to -mm? there's not
much in the way of pending changes.
http://redhat.com/~teigland/gfs2/20050901/gfs2-full.patch
http://redhat.com/~teigland/gfs2/20050901/broken-out/
I'
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