cifs: use workqueue instead of slow-work
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From: Steve French on 21 Jul 2010 11:50 On Tue, Jul 20, 2010 at 3:34 PM, Tejun Heo <tj(a)kernel.org> wrote: > Workqueue can now handle high concurrency. �Use system_nrt_wq > instead of slow-work. > > * Updated is_valid_oplock_break() to not call cifs_oplock_break_put() > �as advised by Steve French. �It might cause deadlock. �Instead, > �reference is increased after queueing succeeded and > �cifs_oplock_break() briefly grabs GlobalSMBSeslock before putting > �the cfile to make sure it doesn't put before the matching get is > �finished. > > * Anton Blanchard reported that cifs conversion was using now gone > �system_single_wq. �Use system_nrt_wq which provides non-reentrance > �guarantee which is enough and much better. > > Signed-off-by: Tejun Heo <tj(a)kernel.org> > Cc: Steve French <sfrench(a)samba.org> > Cc: Anton Blanchard <anton(a)samba.org> > --- > �fs/cifs/Kconfig � �| � �1 - > �fs/cifs/cifsfs.c � | � �5 ----- > �fs/cifs/cifsglob.h | � �8 +++++--- > �fs/cifs/dir.c � � �| � �2 +- > �fs/cifs/file.c � � | � 30 +++++++++++++----------------- > �fs/cifs/misc.c � � | � 20 ++++++++++++-------- > �6 files changed, 31 insertions(+), 35 deletions(-) Acked-by: Steve French <sfrench(a)us.ibm.com> -- Thanks, Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |