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-rw-r--r--fs/cifs/cifsfs.c99
1 files changed, 50 insertions, 49 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index d4b713e5affb..c262d8874ce9 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -33,6 +33,7 @@
33#include <linux/vfs.h> 33#include <linux/vfs.h>
34#include <linux/mempool.h> 34#include <linux/mempool.h>
35#include <linux/delay.h> 35#include <linux/delay.h>
36#include <linux/kthread.h>
36#include "cifsfs.h" 37#include "cifsfs.h"
37#include "cifspdu.h" 38#include "cifspdu.h"
38#define DECLARE_GLOBALS_HERE 39#define DECLARE_GLOBALS_HERE
@@ -75,9 +76,6 @@ unsigned int cifs_max_pending = CIFS_MAX_REQ;
75module_param(cifs_max_pending, int, 0); 76module_param(cifs_max_pending, int, 0);
76MODULE_PARM_DESC(cifs_max_pending,"Simultaneous requests to server. Default: 50 Range: 2 to 256"); 77MODULE_PARM_DESC(cifs_max_pending,"Simultaneous requests to server. Default: 50 Range: 2 to 256");
77 78
78static DECLARE_COMPLETION(cifs_oplock_exited);
79static DECLARE_COMPLETION(cifs_dnotify_exited);
80
81extern mempool_t *cifs_sm_req_poolp; 79extern mempool_t *cifs_sm_req_poolp;
82extern mempool_t *cifs_req_poolp; 80extern mempool_t *cifs_req_poolp;
83extern mempool_t *cifs_mid_poolp; 81extern mempool_t *cifs_mid_poolp;
@@ -841,10 +839,6 @@ static int cifs_oplock_thread(void * dummyarg)
841 __u16 netfid; 839 __u16 netfid;
842 int rc; 840 int rc;
843 841
844 daemonize("cifsoplockd");
845 allow_signal(SIGTERM);
846
847 oplockThread = current;
848 do { 842 do {
849 if (try_to_freeze()) 843 if (try_to_freeze())
850 continue; 844 continue;
@@ -900,9 +894,9 @@ static int cifs_oplock_thread(void * dummyarg)
900 set_current_state(TASK_INTERRUPTIBLE); 894 set_current_state(TASK_INTERRUPTIBLE);
901 schedule_timeout(1); /* yield in case q were corrupt */ 895 schedule_timeout(1); /* yield in case q were corrupt */
902 } 896 }
903 } while(!signal_pending(current)); 897 } while (!kthread_should_stop());
904 oplockThread = NULL; 898
905 complete_and_exit (&cifs_oplock_exited, 0); 899 return 0;
906} 900}
907 901
908static int cifs_dnotify_thread(void * dummyarg) 902static int cifs_dnotify_thread(void * dummyarg)
@@ -910,10 +904,6 @@ static int cifs_dnotify_thread(void * dummyarg)
910 struct list_head *tmp; 904 struct list_head *tmp;
911 struct cifsSesInfo *ses; 905 struct cifsSesInfo *ses;
912 906
913 daemonize("cifsdnotifyd");
914 allow_signal(SIGTERM);
915
916 dnotifyThread = current;
917 do { 907 do {
918 if(try_to_freeze()) 908 if(try_to_freeze())
919 continue; 909 continue;
@@ -931,8 +921,9 @@ static int cifs_dnotify_thread(void * dummyarg)
931 wake_up_all(&ses->server->response_q); 921 wake_up_all(&ses->server->response_q);
932 } 922 }
933 read_unlock(&GlobalSMBSeslock); 923 read_unlock(&GlobalSMBSeslock);
934 } while(!signal_pending(current)); 924 } while (!kthread_should_stop());
935 complete_and_exit (&cifs_dnotify_exited, 0); 925
926 return 0;
936} 927}
937 928
938static int __init 929static int __init
@@ -982,32 +973,48 @@ init_cifs(void)
982 } 973 }
983 974
984 rc = cifs_init_inodecache(); 975 rc = cifs_init_inodecache();
985 if (!rc) { 976 if (rc)
986 rc = cifs_init_mids(); 977 goto out_clean_proc;
987 if (!rc) { 978
988 rc = cifs_init_request_bufs(); 979 rc = cifs_init_mids();
989 if (!rc) { 980 if (rc)
990 rc = register_filesystem(&cifs_fs_type); 981 goto out_destroy_inodecache;
991 if (!rc) { 982
992 rc = (int)kernel_thread(cifs_oplock_thread, NULL, 983 rc = cifs_init_request_bufs();
993 CLONE_FS | CLONE_FILES | CLONE_VM); 984 if (rc)
994 if(rc > 0) { 985 goto out_destroy_mids;
995 rc = (int)kernel_thread(cifs_dnotify_thread, NULL, 986
996 CLONE_FS | CLONE_FILES | CLONE_VM); 987 rc = register_filesystem(&cifs_fs_type);
997 if(rc > 0) 988 if (rc)
998 return 0; 989 goto out_destroy_request_bufs;
999 else 990
1000 cERROR(1,("error %d create dnotify thread", rc)); 991 oplockThread = kthread_run(cifs_oplock_thread, NULL, "cifsoplockd");
1001 } else { 992 if (IS_ERR(oplockThread)) {
1002 cERROR(1,("error %d create oplock thread",rc)); 993 rc = PTR_ERR(oplockThread);
1003 } 994 cERROR(1,("error %d create oplock thread", rc));
1004 } 995 goto out_unregister_filesystem;
1005 cifs_destroy_request_bufs();
1006 }
1007 cifs_destroy_mids();
1008 }
1009 cifs_destroy_inodecache();
1010 } 996 }
997
998 dnotifyThread = kthread_run(cifs_dnotify_thread, NULL, "cifsdnotifyd");
999 if (IS_ERR(dnotifyThread)) {
1000 rc = PTR_ERR(dnotifyThread);
1001 cERROR(1,("error %d create dnotify thread", rc));
1002 goto out_stop_oplock_thread;
1003 }
1004
1005 return 0;
1006
1007 out_stop_oplock_thread:
1008 kthread_stop(oplockThread);
1009 out_unregister_filesystem:
1010 unregister_filesystem(&cifs_fs_type);
1011 out_destroy_request_bufs:
1012 cifs_destroy_request_bufs();
1013 out_destroy_mids:
1014 cifs_destroy_mids();
1015 out_destroy_inodecache:
1016 cifs_destroy_inodecache();
1017 out_clean_proc:
1011#ifdef CONFIG_PROC_FS 1018#ifdef CONFIG_PROC_FS
1012 cifs_proc_clean(); 1019 cifs_proc_clean();
1013#endif 1020#endif
@@ -1025,14 +1032,8 @@ exit_cifs(void)
1025 cifs_destroy_inodecache(); 1032 cifs_destroy_inodecache();
1026 cifs_destroy_mids(); 1033 cifs_destroy_mids();
1027 cifs_destroy_request_bufs(); 1034 cifs_destroy_request_bufs();
1028 if(oplockThread) { 1035 kthread_stop(oplockThread);
1029 send_sig(SIGTERM, oplockThread, 1); 1036 kthread_stop(dnotifyThread);
1030 wait_for_completion(&cifs_oplock_exited);
1031 }
1032 if(dnotifyThread) {
1033 send_sig(SIGTERM, dnotifyThread, 1);
1034 wait_for_completion(&cifs_dnotify_exited);
1035 }
1036} 1037}
1037 1038
1038MODULE_AUTHOR("Steve French <sfrench@us.ibm.com>"); 1039MODULE_AUTHOR("Steve French <sfrench@us.ibm.com>");