From: Miklos Szeredi <mszeredi@suse.cz> Move the fields 'dentry' and 'vfsmount' into the request specific union, since these are only used for the RELEASE request. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> --- Index: linux/fs/fuse/file.c =================================================================== --- linux.orig/fs/fuse/file.c 2008-01-29 17:12:56.000000000 +0100 +++ linux/fs/fuse/file.c 2008-01-29 17:13:06.000000000 +0100 @@ -77,8 +77,8 @@ static struct fuse_file ...

From: Miklos Szeredi <mszeredi@suse.cz> Libfuse basically creates a new thread for each new request. This is fine for synchronous requests, which are naturally limited. However background requests (especially writepage) can cause a thread creation storm. To avoid this, limit the number of background requests available to userspace. This is done by introducing another queue for background requests, and a counter for the number of "active" requests, which are currently available for ...

From: Peter Zijlstra <a.p.zijlstra@chello.nl> Add "max_ratio" to /sys/class/bdi. This indicates the maximum percentage of the global dirty threshold allocated to this bdi. [mszeredi@suse.cz] - fix parsing in max_ratio_store(). - export bdi_set_max_ratio() to modules - limit bdi_dirty with bdi->max_ratio - document new sysfs attribute Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> --- Index: ...

From: Miklos Szeredi <mszeredi@suse.cz> Register NFS' backing_dev_info under sysfs with the name "nfs-MAJOR:MINOR" Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> CC: Peter Zijlstra <a.p.zijlstra@chello.nl> CC: Trond Myklebust <trond.myklebust@fys.uio.no> --- Index: linux/fs/nfs/super.c =================================================================== --- linux.orig/fs/nfs/super.c 2008-01-29 10:26:47.000000000 +0100 +++ linux/fs/nfs/super.c 2008-01-29 12:12:38.000000000 +0100 @@ ...

Acked-by: Greg Kroah-Hartman <gregkh@suse.de> -

From: Miklos Szeredi <mszeredi@suse.cz> Register FUSE's backing_dev_info under sysfs with the name "fuse-MAJOR:MINOR" Make the fuse control filesystem use s_dev instead of a fuse specific ID. This makes it easier to match directories under /sys/fs/fuse/connections/ with directories under /sys/class/bdi, and with actual mounts. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> CC: Peter Zijlstra <a.p.zijlstra@chello.nl> --- Index: ...

More precisely /proc/<pid>/mountinfo is only needed to find mounts for a given BDI (which might not be a very common scenario), and not the other way round. But both patches are useful, and they are even more useful together ;) Miklos -

From: Ram Pai <linuxram@us.ibm.com> /proc/mounts in its current state fails to disambiguate bind mounts, especially when the bind mount is subrooted. Also it does not capture propagation state of the mounts(shared-subtree). The following patch addresses the problem. The patch adds '/proc/<pid>/mountinfo' which contains a superset of information in '/proc/<pid>/mounts'. The following fields are added: mntid -- is a unique identifier of the mount parent -- the id of the parent ...

It is a problem with the way how ext3 does fsync (at least that's what we ended up with in that konqueror problem)... It has to flush the current transaction which means that app doing fsync() has to wait till all dirty data of all files on the filesystem are written (if we are in ordered mode). And that takes quite some time... There are possibilities how to avoid that but especially with freshly created files, it's tough and I don't see a way how to do it without some fundamental changes ...

Sounds reasonable, but I can't test it till I get back from LCA. David -