Re: [PATCH v3 0/8] change sb_writers to use percpu_rw_semaphore

Oleg Nesterov
2015-08-15T12:05:47Z

On 08/15, Al Viro wrote:
>
> On Fri, Aug 14, 2015 at 07:19:35PM +0200, Oleg Nesterov wrote:
> > On 08/13, Jan Kara wrote:
> > >
> > > Regarding the routing, ideally Al Viro should take these as a VFS
> > > maintainer.
> >
> > Al, could you take these patches?
>
> I can live with that. Do you have it as a branch in a public git tree?

Just created

git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc sb_writers_pcpu_rwsem

Based on Linus's tree.

Thanks!

Oleg.
---

The following changes since commit 45e38cff4fce8d6871b5fa5e734e4dc9814d6056:
Linus Torvalds (1):
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc sb_writers_pcpu_rwsem

Oleg Nesterov (8):
introduce __sb_writers_{acquired,release}() helpers
fix the broken lockdep logic in __sb_start_write()
document rwsem_release() in sb_wait_write()
percpu-rwsem: introduce percpu_down_read_trylock()
percpu-rwsem: introduce percpu_rwsem_release() and percpu_rwsem_acquire()
percpu-rwsem: kill CONFIG_PERCPU_RWSEM
shift percpu_counter_destroy() into destroy_super_work()
change sb_writers to use percpu_rw_semaphore

arch/Kconfig | 1 -
fs/btrfs/transaction.c | 8 +--
fs/super.c | 171 ++++++++++++++++++-----------------------
fs/xfs/xfs_aops.c | 6 +-
include/linux/fs.h | 23 +++---
include/linux/percpu-rwsem.h | 20 +++++
init/Kconfig | 1 -
kernel/locking/Makefile | 3 +-
kernel/locking/percpu-rwsem.c | 13 +++
lib/Kconfig | 3 -
10 files changed, 123 insertions(+), 126 deletions(-)