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cifs: make dnotify thread experimental code

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Now that tasks sleeping in wait_for_response will time out on their own,
we're not reliant on the dnotify thread to do this. Mark it as
experimental code for now.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Jeff Layton 2008-12-01 15:23:50 -05:00 committed by Steve French
parent 72ca545b2d
commit 954d7a1cf1
1 changed files with 11 additions and 1 deletions
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12
fs/cifs/cifsfs.c
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@ -66,7 +66,9 @@ unsigned int sign_CIFS_PDUs = 1;
extern struct task_struct *oplockThread; /* remove sparse warning */
struct task_struct *oplockThread = NULL;
/* extern struct task_struct * dnotifyThread; remove sparse warning */
#ifdef CONFIG_CIFS_EXPERIMENTAL
static struct task_struct *dnotifyThread = NULL;
#endif
static const struct super_operations cifs_super_ops;
unsigned int CIFSMaxBufSize = CIFS_MAX_MSGSIZE;
module_param(CIFSMaxBufSize, int, 0);
@ -1049,6 +1051,7 @@ static int cifs_oplock_thread(void *dummyarg)
return 0;
}
#ifdef CONFIG_CIFS_EXPERIMENTAL
static int cifs_dnotify_thread(void *dummyarg)
{
struct list_head *tmp;
@ -1074,6 +1077,7 @@ static int cifs_dnotify_thread(void *dummyarg)
return 0;
}
#endif
static int __init
init_cifs(void)
@ -1151,16 +1155,20 @@ init_cifs(void)
goto out_unregister_dfs_key_type;
}
#ifdef CONFIG_CIFS_EXPERIMENTAL
dnotifyThread = kthread_run(cifs_dnotify_thread, NULL, "cifsdnotifyd");
if (IS_ERR(dnotifyThread)) {
rc = PTR_ERR(dnotifyThread);
cERROR(1, ("error %d create dnotify thread", rc));
goto out_stop_oplock_thread;
}
#endif
return 0;
#ifdef CONFIG_CIFS_EXPERIMENTAL
out_stop_oplock_thread:
#endif
kthread_stop(oplockThread);
out_unregister_dfs_key_type:
#ifdef CONFIG_CIFS_DFS_UPCALL
@ -1199,8 +1207,10 @@ exit_cifs(void)
cifs_destroy_inodecache();
cifs_destroy_mids();
cifs_destroy_request_bufs();
kthread_stop(oplockThread);
#ifdef CONFIG_CIFS_EXPERIMENTAL
kthread_stop(dnotifyThread);
#endif
kthread_stop(oplockThread);
}
MODULE_AUTHOR("Steve French <sfrench@us.ibm.com>");