Re: [PATCH retry] bluetooth : add conn add/del workqueues to avoid connection fail
On Wed, Jan 30 2008, Dave Young wrote: The bluetooth hci_conn sysfs add/del executed in the default workqueue. If the del_conn is executed after the new add_conn with same target, add_conn will failed with warning of same kobject name. Here add btaddconn btdelconn workqueues, flush the btdelconn workqueue in the add_conn function to avoid the issue. Signed-off-by: Dave Young [EMAIL PROTECTED] --- diff -upr a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c --- a/net/bluetooth/hci_sysfs.c 2008-01-30 10:14:27.0 +0800 +++ b/net/bluetooth/hci_sysfs.c 2008-01-30 10:14:14.0 +0800 @@ -12,6 +12,8 @@ #undef BT_DBG #define BT_DBG(D...) #endif +static struct workqueue_struct *btaddconn; +static struct workqueue_struct *btdelconn; static inline char *typetostr(int type) { @@ -279,6 +281,7 @@ static void add_conn(struct work_struct struct hci_conn *conn = container_of(work, struct hci_conn, work); int i; + flush_workqueue(btdelconn); if (device_add(conn-dev) 0) { BT_ERR(Failed to register connection device); return; @@ -313,6 +316,7 @@ void hci_conn_add_sysfs(struct hci_conn INIT_WORK(conn-work, add_conn); + queue_work(btaddconn, conn-work); schedule_work(conn-work); } So you queue conn-work on both btaddconn and keventd_wq? -- Jens Axboe -- To unsubscribe from this list: send the line unsubscribe netdev in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH retry] bluetooth : add conn add/del workqueues to avoid connection fail
On Thu, Jan 31, 2008 at 02:09:30PM +0100, Jens Axboe wrote: On Wed, Jan 30 2008, Dave Young wrote: The bluetooth hci_conn sysfs add/del executed in the default workqueue. If the del_conn is executed after the new add_conn with same target, add_conn will failed with warning of same kobject name. Here add btaddconn btdelconn workqueues, flush the btdelconn workqueue in the add_conn function to avoid the issue. Signed-off-by: Dave Young [EMAIL PROTECTED] --- diff -upr a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c --- a/net/bluetooth/hci_sysfs.c 2008-01-30 10:14:27.0 +0800 +++ b/net/bluetooth/hci_sysfs.c 2008-01-30 10:14:14.0 +0800 @@ -12,6 +12,8 @@ #undef BT_DBG #define BT_DBG(D...) #endif +static struct workqueue_struct *btaddconn; +static struct workqueue_struct *btdelconn; static inline char *typetostr(int type) { @@ -279,6 +281,7 @@ static void add_conn(struct work_struct struct hci_conn *conn = container_of(work, struct hci_conn, work); int i; + flush_workqueue(btdelconn); if (device_add(conn-dev) 0) { BT_ERR(Failed to register connection device); return; @@ -313,6 +316,7 @@ void hci_conn_add_sysfs(struct hci_conn INIT_WORK(conn-work, add_conn); + queue_work(btaddconn, conn-work); schedule_work(conn-work); } So you queue conn-work on both btaddconn and keventd_wq? My fault. Thanks for pointing out. new patch as following (some fixes according to marcel's style as well) --- [PATCH] bluetooth : add conn add/del workqueues to avoid connection fail The bluetooth hci conn sysfs add/del executed in the default workqueue. If the conn del function is executed after the new conn add function with same bluetooth target address, the connection add will failed and will warn about same kobject name. Here add btaddconn btdelconn workqueues, flush the btdelconn workqueue in the add_conn function to avoid the issue. Signed-off-by: Dave Young [EMAIL PROTECTED] --- net/bluetooth/hci_sysfs.c | 52 -- 1 file changed, 41 insertions(+), 11 deletions(-) diff -upr a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c --- a/net/bluetooth/hci_sysfs.c 2008-02-01 09:18:40.0 +0800 +++ b/net/bluetooth/hci_sysfs.c 2008-02-01 09:18:40.0 +0800 @@ -12,6 +12,8 @@ #undef BT_DBG #define BT_DBG(D...) #endif +static struct workqueue_struct *btaddconn; +static struct workqueue_struct *btdelconn; static inline char *typetostr(int type) { @@ -279,6 +281,8 @@ static void add_conn(struct work_struct struct hci_conn *conn = container_of(work, struct hci_conn, work); int i; + flush_workqueue(btdelconn); + if (device_add(conn-dev) 0) { BT_ERR(Failed to register connection device); return; @@ -313,7 +317,7 @@ void hci_conn_add_sysfs(struct hci_conn INIT_WORK(conn-work, add_conn); - schedule_work(conn-work); + queue_work(btaddconn, conn-work); } static int __match_tty(struct device *dev, void *data) @@ -349,7 +353,7 @@ void hci_conn_del_sysfs(struct hci_conn INIT_WORK(conn-work, del_conn); - schedule_work(conn-work); + queue_work(btdelconn, conn-work); } int hci_register_sysfs(struct hci_dev *hdev) @@ -398,28 +402,54 @@ int __init bt_sysfs_init(void) { int err; + btaddconn = create_singlethread_workqueue(btaddconn); + if (!btaddconn) { + err = -ENOMEM; + goto out; + } + + btdelconn = create_singlethread_workqueue(btdelconn); + if (!btdelconn) { + err = -ENOMEM; + goto out_del; + } + bt_platform = platform_device_register_simple(bluetooth, -1, NULL, 0); - if (IS_ERR(bt_platform)) - return PTR_ERR(bt_platform); + if (IS_ERR(bt_platform)) { + err = PTR_ERR(bt_platform); + goto out_platform; + } err = bus_register(bt_bus); - if (err 0) { - platform_device_unregister(bt_platform); - return err; - } + if (err 0) + goto out_bus; bt_class = class_create(THIS_MODULE, bluetooth); if (IS_ERR(bt_class)) { - bus_unregister(bt_bus); - platform_device_unregister(bt_platform); - return PTR_ERR(bt_class); + err = PTR_ERR(bt_class); + goto out_class; } return 0; + +out_class: + bus_unregister(bt_bus); +out_bus: + platform_device_unregister(bt_platform); +out_platform: + destroy_workqueue(btdelconn); +out_del: + destroy_workqueue(btaddconn); +out: + return err; } void bt_sysfs_cleanup(void) { + destroy_workqueue(btaddconn); + + destroy_workqueue(btdelconn); + class_destroy(bt_class);
Re: [PATCH retry] bluetooth : add conn add/del workqueues to avoid connection fail
From: Dave Young [EMAIL PROTECTED] Date: Fri, 1 Feb 2008 09:24:41 +0800 On Thu, Jan 31, 2008 at 02:09:30PM +0100, Jens Axboe wrote: On Wed, Jan 30 2008, Dave Young wrote: The bluetooth hci_conn sysfs add/del executed in the default workqueue. If the del_conn is executed after the new add_conn with same target, add_conn will failed with warning of same kobject name. Here add btaddconn btdelconn workqueues, flush the btdelconn workqueue in the add_conn function to avoid the issue. Signed-off-by: Dave Young [EMAIL PROTECTED] --- diff -upr a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c --- a/net/bluetooth/hci_sysfs.c 2008-01-30 10:14:27.0 +0800 +++ b/net/bluetooth/hci_sysfs.c 2008-01-30 10:14:14.0 +0800 @@ -12,6 +12,8 @@ #undef BT_DBG #define BT_DBG(D...) #endif +static struct workqueue_struct *btaddconn; +static struct workqueue_struct *btdelconn; static inline char *typetostr(int type) { @@ -279,6 +281,7 @@ static void add_conn(struct work_struct struct hci_conn *conn = container_of(work, struct hci_conn, work); int i; + flush_workqueue(btdelconn); if (device_add(conn-dev) 0) { BT_ERR(Failed to register connection device); return; @@ -313,6 +316,7 @@ void hci_conn_add_sysfs(struct hci_conn INIT_WORK(conn-work, add_conn); + queue_work(btaddconn, conn-work); schedule_work(conn-work); } So you queue conn-work on both btaddconn and keventd_wq? My fault. Thanks for pointing out. new patch as following (some fixes according to marcel's style as well) Your original patch was already in the tree, so I just checked in the relative changes. Please don't me do this next time :-) -- To unsubscribe from this list: send the line unsubscribe netdev in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH retry] bluetooth : add conn add/del workqueues to avoid connection fail
On Feb 1, 2008 10:33 AM, David Miller [EMAIL PROTECTED] wrote: From: Dave Young [EMAIL PROTECTED] Date: Fri, 1 Feb 2008 09:24:41 +0800 On Thu, Jan 31, 2008 at 02:09:30PM +0100, Jens Axboe wrote: On Wed, Jan 30 2008, Dave Young wrote: The bluetooth hci_conn sysfs add/del executed in the default workqueue. If the del_conn is executed after the new add_conn with same target, add_conn will failed with warning of same kobject name. Here add btaddconn btdelconn workqueues, flush the btdelconn workqueue in the add_conn function to avoid the issue. Signed-off-by: Dave Young [EMAIL PROTECTED] --- diff -upr a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c --- a/net/bluetooth/hci_sysfs.c 2008-01-30 10:14:27.0 +0800 +++ b/net/bluetooth/hci_sysfs.c 2008-01-30 10:14:14.0 +0800 @@ -12,6 +12,8 @@ #undef BT_DBG #define BT_DBG(D...) #endif +static struct workqueue_struct *btaddconn; +static struct workqueue_struct *btdelconn; static inline char *typetostr(int type) { @@ -279,6 +281,7 @@ static void add_conn(struct work_struct struct hci_conn *conn = container_of(work, struct hci_conn, work); int i; + flush_workqueue(btdelconn); if (device_add(conn-dev) 0) { BT_ERR(Failed to register connection device); return; @@ -313,6 +316,7 @@ void hci_conn_add_sysfs(struct hci_conn INIT_WORK(conn-work, add_conn); + queue_work(btaddconn, conn-work); schedule_work(conn-work); } So you queue conn-work on both btaddconn and keventd_wq? My fault. Thanks for pointing out. new patch as following (some fixes according to marcel's style as well) Your original patch was already in the tree, so I just checked in the relative changes. Please don't me do this next time :-) David, sorry for it. Should be more careful. Thanks :) -- To unsubscribe from this list: send the line unsubscribe netdev in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH retry] bluetooth : add conn add/del workqueues to avoid connection fail
Hi Dave, The bluetooth hci_conn sysfs add/del executed in the default workqueue. If the del_conn is executed after the new add_conn with same target, add_conn will failed with warning of same kobject name. Here add btaddconn btdelconn workqueues, flush the btdelconn workqueue in the add_conn function to avoid the issue. Signed-off-by: Dave Young [EMAIL PROTECTED] This looks good, applied, thanks Dave. I've queued this up for 2.6.25 merging, if you want me to schedule it for -stable, just let me know. don't include it. I first have to stress test it on one of my machines. Besides that I have to do some coding style cleanups. Regards Marcel -- To unsubscribe from this list: send the line unsubscribe netdev in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH retry] bluetooth : add conn add/del workqueues to avoid connection fail
On Jan 30, 2008 6:21 PM, Marcel Holtmann [EMAIL PROTECTED] wrote: Hi Dave, The bluetooth hci_conn sysfs add/del executed in the default workqueue. If the del_conn is executed after the new add_conn with same target, add_conn will failed with warning of same kobject name. Here add btaddconn btdelconn workqueues, flush the btdelconn workqueue in the add_conn function to avoid the issue. Signed-off-by: Dave Young [EMAIL PROTECTED] This looks good, applied, thanks Dave. I've queued this up for 2.6.25 merging, if you want me to schedule it for -stable, just let me know. don't include it. I first have to stress test it on one of my machines. Besides that I have to do some coding style cleanups. Sorry, I thought you forgot it. Thanks. BTW, for the bus_id bug, If there's no urgent need I think we could do the fix after driver core bus_id changes of kay which will be there soon. Regards Marcel -- To unsubscribe from this list: send the line unsubscribe netdev in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH retry] bluetooth : add conn add/del workqueues to avoid connection fail
The bluetooth hci_conn sysfs add/del executed in the default workqueue. If the del_conn is executed after the new add_conn with same target, add_conn will failed with warning of same kobject name. Here add btaddconn btdelconn workqueues, flush the btdelconn workqueue in the add_conn function to avoid the issue. Signed-off-by: Dave Young [EMAIL PROTECTED] --- diff -upr a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c --- a/net/bluetooth/hci_sysfs.c 2008-01-30 10:14:27.0 +0800 +++ b/net/bluetooth/hci_sysfs.c 2008-01-30 10:14:14.0 +0800 @@ -12,6 +12,8 @@ #undef BT_DBG #define BT_DBG(D...) #endif +static struct workqueue_struct *btaddconn; +static struct workqueue_struct *btdelconn; static inline char *typetostr(int type) { @@ -279,6 +281,7 @@ static void add_conn(struct work_struct struct hci_conn *conn = container_of(work, struct hci_conn, work); int i; + flush_workqueue(btdelconn); if (device_add(conn-dev) 0) { BT_ERR(Failed to register connection device); return; @@ -313,6 +316,7 @@ void hci_conn_add_sysfs(struct hci_conn INIT_WORK(conn-work, add_conn); + queue_work(btaddconn, conn-work); schedule_work(conn-work); } @@ -349,6 +353,7 @@ void hci_conn_del_sysfs(struct hci_conn INIT_WORK(conn-work, del_conn); + queue_work(btdelconn, conn-work); schedule_work(conn-work); } @@ -398,31 +403,52 @@ int __init bt_sysfs_init(void) { int err; + btaddconn = create_singlethread_workqueue(btaddconn); + if (!btaddconn) { + err = -ENOMEM; + goto out; + } + btdelconn = create_singlethread_workqueue(btdelconn); + if (!btdelconn) { + err = -ENOMEM; + goto out_del; + } + bt_platform = platform_device_register_simple(bluetooth, -1, NULL, 0); - if (IS_ERR(bt_platform)) - return PTR_ERR(bt_platform); + if (IS_ERR(bt_platform)) { + err = PTR_ERR(bt_platform); + goto out_platform; + } err = bus_register(bt_bus); - if (err 0) { - platform_device_unregister(bt_platform); - return err; - } + if (err 0) + goto out_bus; bt_class = class_create(THIS_MODULE, bluetooth); if (IS_ERR(bt_class)) { - bus_unregister(bt_bus); - platform_device_unregister(bt_platform); - return PTR_ERR(bt_class); + err = PTR_ERR(bt_class); + goto out_class; } return 0; + +out_class: + bus_unregister(bt_bus); +out_bus: + platform_device_unregister(bt_platform); +out_platform: + destroy_workqueue(btdelconn); +out_del: + destroy_workqueue(btaddconn); +out: + return err; } void bt_sysfs_cleanup(void) { + destroy_workqueue(btaddconn); + destroy_workqueue(btdelconn); class_destroy(bt_class); - bus_unregister(bt_bus); - platform_device_unregister(bt_platform); } -- To unsubscribe from this list: send the line unsubscribe netdev in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH retry] bluetooth : add conn add/del workqueues to avoid connection fail
From: Dave Young [EMAIL PROTECTED] Date: Wed, 30 Jan 2008 10:23:54 +0800 The bluetooth hci_conn sysfs add/del executed in the default workqueue. If the del_conn is executed after the new add_conn with same target, add_conn will failed with warning of same kobject name. Here add btaddconn btdelconn workqueues, flush the btdelconn workqueue in the add_conn function to avoid the issue. Signed-off-by: Dave Young [EMAIL PROTECTED] This looks good, applied, thanks Dave. I've queued this up for 2.6.25 merging, if you want me to schedule it for -stable, just let me know. Thanks again. -- To unsubscribe from this list: send the line unsubscribe netdev in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html