... the inode to disk. > > If you're always using trylock semantics on it, ... using constructs like wait_on_bit instead of > > > semaphores. See the implementation of wait_on_buffer for ... case, not an argument for removing the lock type completely. Cheers, ...

linux-kernel - David Chinner - Apr 28 2008 - 23:56

... being required for locks. We only just removed all the remaining lock cruft left over ... seems to be a completion. ie you're using it to wait for the ... using constructs like wait_on_bit instead of > semaphores. See the implementation of wait_on_buffer for ...

linux-kernel - David Chinner - Apr 28 2008 - 20:09

... required for locks. We only just > removed all the remaining lock cruft left ... the inode to disk. If you're always using trylock semantics on it, ... using constructs like wait_on_bit instead of > > semaphores. See the implementation of wait_on_buffer for ...

linux-kernel - Matthew Wilcox - Apr 28 2008 - 22:35

... may not be wise. > > If you're always using trylock semantics on it, ... using constructs like wait_on_bit instead of > > > > semaphores. See the implementation of wait_on_buffer for ... case, not > an argument for removing the lock type completely. Ah, ...

linux-kernel - Matthew Wilcox - Apr 30 2008 - 06:21

... linux/kernel/git/willy/misc.git semaphore-removal > > This is in addition to the semaphore branch? Should it go before or ... dependencies between them. In case I do ... let's say semaphore- ... look, we understand that you're interested in selling us this ...

linux-kernel - Matthew Wilcox - Apr 26 2008 - 11:59

... a while to use mutexes instead of > semaphores where possible. Additional debuggability, better optimised, ... ve made them available as a git tree. I think the right way to get ... post a list of the places using semaphores later. My current list > is a bit ...

linux-kernel - Daniel Walker - Apr 25 2008 - 16:24

... : > http://git.kernel.org/?p=linux/kernel/git/willy/misc.git;a=shortlog;h=semaphore-removal > I was reviewing your patches, and I don't like the semaphore to spinlock changes.. There's no reason to start adding spinlocks, ...

linux-kernel - Daniel Walker - Apr 25 2008 - 16:38

... to > create any conflicts or dependencies between them. In case I do ... > let's say semaphore-removal goes after semaphore. OK, added. --=20 Cheers, Stephen Rothwell sfr@canb.auug.org.au http://www.canb ...

linux-kernel - Stephen Rothwell - Apr 26 2008 - 12:43

... to use mutexes instead of > > semaphores where possible. Additional debuggability, better ... constructs like wait_on_bit instead of semaphores. See the implementation of wait_on_buffer for ... , look, we understand that you're interested in selling us this ...

linux-kernel - Matthew Wilcox - Apr 28 2008 - 08:20

... I was reviewing your patches, and I don't like the semaphore to spinlock > > changes.. There's no reason to start adding spinlocks, ... > realtime-ghetto. If you can make a case for converting some semaphores to spinlocks be my guest .. If you have good ...

linux-kernel - Daniel Walker - Apr 25 2008 - 17:22

... a Good Idea for a while to use mutexes instead of > semaphores where possible. Additional debuggability, better optimised, > better-enforced ... . Matthew, what's the plan for code using semaphores that cannot be easily converted to something else? e.g ...

linux-kernel - David Chinner - Apr 28 2008 - 01:10

... up for linux-next? >=20 > git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc.git semaphore-re= moval This is in addition to the semaphore branch? Should it go before or after that i.e. does it depend ...

linux-kernel - Stephen Rothwell - Apr 26 2008 - 09:54

... 25, 2008 at 01:38:37PM -0700, Daniel Walker wrote: > I was reviewing your patches, and I don't like the semaphore to spinlock > changes.. There's no reason to start adding spinlocks, unless it's > really performance sensitive which none of those places ...

linux-kernel - Christoph Hellwig - Apr 25 2008 - 17:12

On Fri, Apr 25, 2008 at 02:22:31PM -0700, Daniel Walker wrote: > If you can make a case for converting some semaphores to spinlocks be my > guest .. If you have good reasoning I wouldn't stand in the way.. (Real > time converts all the spinlocks to ...

linux-kernel - Christoph Hellwig - Apr 26 2008 - 05:30

... > On Fri, Apr 25, 2008 at 02:22:31PM -0700, Daniel Walker wrote: > > If you can make a case for converting some semaphores to spinlocks be my > > guest .. If you have good reasoning I wouldn't stand in the way.. (Real > > time converts all the spinlocks ...

linux-kernel - Peter Zijlstra - Apr 26 2008 - 09:39

... hash is gone now and replaced by a radix tree. > As soon as nick and your work on the lockless radix trees goes in I'm > pretty sure Dave will make use of that. Nick's RCU radix tree is already merged - its just the speculative page ...

linux-kernel - Peter Zijlstra - Apr 26 2008 - 10:04

... more work? Actually the whole XFS inode hash is gone now and replaced by a radix tree. As soon as nick and your work on the lockless radix trees goes in I'm pretty sure Dave will make use of that. -- To ...

linux-kernel - Christoph Hellwig - Apr 26 2008 - 09:44

... > Actually the whole XFS inode hash is gone now and replaced by a radix tree. > As soon as nick and your work on the lockless radix trees goes in I'm > pretty sure Dave will make use of that. I have patches ...

linux-kernel - David Chinner - Apr 28 2008 - 00:59

... > > > > This seems to be a completion. ie you're using it to wait for the log > > to be flushed. > ... ... these opinions are still mine "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. ...

linux-kernel - Matthew Wilcox - Apr 30 2008 - 06:06

... > > > > > This seems to be a completion. ie you're using it to wait for the log > > > to be flushed. ... and then the rest start waiting on the flush sema. Given that we're already pushing 4096p support for the next gen machines, this problem isn't ...

linux-kernel - David Chinner - Apr 30 2008 - 07:01