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Frowned-upon-by: Joern Engel <joern@logfs.org> This patch changes some 400 lines, most if not all of which get longer and more complicated to read. 23 get sufficiently longer to require an additional linebreak. I can't remember complexity being invited into the kernel without good reasoning, yet the patch description is The following two patches manage to remove 7 lines in total. In total 23 were added, 7 removed , 400+ made longer and more complicated. Is there another more favorable m...

This one contains core interfaces of the distributed storage, storage and node initialization and cleanup code, block layer callbacks and the like. It also contains Kconfig and Makefile changes. Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index b4c8319..ca6592d 100644 --- a/drivers/block/Kconfig +++ b/drivers/block/Kconfig @@ -451,6 +451,8 @@ config ATA_OVER_ETH This driver provides Support for ATA over Ethernet block ...

DST documentation. Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> diff --git a/Documentation/dst/algorithms.txt b/Documentation/dst/algorithms.txt new file mode 100644 index 0000000..1437a6a --- /dev/null +++ b/Documentation/dst/algorithms.txt @@ -0,0 +1,115 @@ +Each storage by itself is just a set of contiguous logical blocks, with +allowed number of operations. Nodes, each of which has own start and size, +are placed into storage by appropriate algorithm, which remaps +logical ...

Hello everyone, The position statement submission system for the 2008 storage and filesystem workshop is now online. This is how you let us know you're interested in attending and what topics are most important for discussion. For all the details, please see: http://www.usenix.org/events/lsf08/ -chris -

Thanks Phillip. A tiny bug[fix] I always forgot to send... In fs/squashfs/inode.c, constants TASK_UNINTERRUPTIBLE and TASK_INTERRUPTIBLE are used, but they aren't sometimes defined (declared in linux/sched.h): CC [M] fs/squashfs/inode.o fs/squashfs/inode.c: In function 'squashfs_get_cached_block': fs/squashfs/inode.c:367: error: 'TASK_UNINTERRUPTIBLE' undeclared (first use in this function) fs/squashfs/inode.c:367: error: (Each undeclared identifier is reported only once fs/squashfs/inode....

Hello. I'm running my LSM module on kernel 2.6.23 / Debian Sarge. I encountered the following warning message. It seems that calling down_read(&namespace_sem) is not permitted inside mutex_lock(&inode->i_mutex) , but I'm not sure. Is it illegal to refer namespace_sem while inode's mutex held? ======================================================= [ INFO: possible circular locking dependency detected ] 2.6.23-tomoyo2.1 #27 -------------------------------------------------------...

Ok, so it's probably a side effect of the writeback changes. Attached are two patches (two because one was in a separate patchset as a standalone change) that should prevent async writeback from blocking on locked inode cluster buffers. Apply the xfs-factor-inotobp patch first. Can you see if this fixes the problem? Cheers, Dave. -- Dave Chinner Principal Engineer SGI Australian Software Group

Applied both patches against the kernel mentioned above. This blows up at boot: [ 80.807589] Filesystem "dm-0": Disabling barriers, not supported by the underlying device [ 80.820241] XFS mounting filesystem dm-0 [ 80.913144] ------------[ cut here ]------------ [ 80.914932] kernel BUG at drivers/md/raid5.c:143! [ 80.916751] invalid opcode: 0000 [1] SMP [ 80.918338] CPU 3 [ 80.919142] Modules linked in: [ 80.920345] Pid: 974, comm: md1_raid5 Not tainted 2.6.24-rc1 #3 [ 80.9226...

The grow_dev_page() pages should be reclaimable even though migration is not supported for those pages? They were marked movable as it was useful for lumpy reclaim taking back pages for hugepage allocations and the like. Would it make sense for memory unremove to attempt migration first and reclaim second? -- Mel Gorman Part-time Phd Student Linux Technology Center University of Limerick IBM Dublin Software Lab -

On Mon, 5 Nov 2007 10:23:35 +0000 In this case, reiserfs has the page pinned while it is doing journal magic. Not sure if ext3 has the same issues. -chris -

I've never actually seen this happen in practice, but I do know exactly Actually, I think your s/while/if/ change is probably a decent fix. Barring any other races, that loop should always have made progress on and don't have a positive mnt->__mnt_writers, we know something is going badly. We WARN_ON() there, which should at least give an earlier warning that the system is not doing well. But it doesn't fix the inevitable. Could you try the attached patch and see if it at least warns you ...