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authorTejun Heo <tj@kernel.org>2010-07-20 22:09:02 +0200
committerTejun Heo <tj@kernel.org>2010-07-22 22:59:15 +0200
commit9b646972467fb5fdc677f9e4251875db20bdbb64 (patch)
tree01d54cf7e0ee110bd8287c3360de0c3997e859ae /fs/cifs/cifsfs.c
parentfscache: drop references to slow-work (diff)
downloadlinux-dev-9b646972467fb5fdc677f9e4251875db20bdbb64.tar.xz
linux-dev-9b646972467fb5fdc677f9e4251875db20bdbb64.zip
cifs: use workqueue instead of slow-work
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@kernel.org> Acked-by: Steve French <sfrench@samba.org> Cc: Anton Blanchard <anton@samba.org>
Diffstat (limited to 'fs/cifs/cifsfs.c')
-rw-r--r--fs/cifs/cifsfs.c5
1 files changed, 0 insertions, 5 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 78c02eb4cb1f..4c075177c8b6 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -917,15 +917,10 @@ init_cifs(void)
if (rc)
goto out_unregister_key_type;
#endif
- rc = slow_work_register_user(THIS_MODULE);
- if (rc)
- goto out_unregister_resolver_key;
return 0;
- out_unregister_resolver_key:
#ifdef CONFIG_CIFS_DFS_UPCALL
- unregister_key_type(&key_type_dns_resolver);
out_unregister_key_type:
#endif
#ifdef CONFIG_CIFS_UPCALL