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Date: Fri, 28 Mar 2008 14:41:26 -0700 From: akpm@...ux-foundation.org To: jeff@...zik.org Cc: netdev@...r.kernel.org, akpm@...ux-foundation.org, dwalker@...sta.com, raisch@...ibm.com, themann@...ibm.com, tklein@...ibm.com Subject: [patch 14/21] netdev: ehea: semaphore to mutex From: Daniel Walker <dwalker@...sta.com> Converted the dlpar_mem_lock. With a bit of cleanup, I converted to DEFINE_MUTEX() instead of a runtime init. I also made the lock static. Signed-off-by: Daniel Walker <dwalker@...sta.com> Cc: Jeff Garzik <jeff@...zik.org> Cc: Christoph Raisch <raisch@...ibm.com> Acked-by: Jan-Bernd Themann <themann@...ibm.com> Cc: Thomas Klein <tklein@...ibm.com> Signed-off-by: Andrew Morton <akpm@...ux-foundation.org> --- drivers/net/ehea/ehea_main.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff -puN drivers/net/ehea/ehea_main.c~net-ehea-semaphore-to-mutex drivers/net/ehea/ehea_main.c --- a/drivers/net/ehea/ehea_main.c~net-ehea-semaphore-to-mutex +++ a/drivers/net/ehea/ehea_main.c @@ -36,6 +36,7 @@ #include <linux/notifier.h> #include <linux/reboot.h> #include <asm/kexec.h> +#include <linux/mutex.h> #include <net/ip.h> @@ -99,7 +100,7 @@ static int port_name_cnt; static LIST_HEAD(adapter_list); u64 ehea_driver_flags; struct work_struct ehea_rereg_mr_task; -struct semaphore dlpar_mem_lock; +static DEFINE_MUTEX(dlpar_mem_lock); struct ehea_fw_handle_array ehea_fw_handles; struct ehea_bcmc_reg_array ehea_bcmc_regs; @@ -2830,7 +2831,7 @@ static void ehea_rereg_mrs(struct work_s int ret, i; struct ehea_adapter *adapter; - down(&dlpar_mem_lock); + mutex_lock(&dlpar_mem_lock); ehea_info("LPAR memory enlarged - re-initializing driver"); list_for_each_entry(adapter, &adapter_list, list) @@ -2902,7 +2903,7 @@ static void ehea_rereg_mrs(struct work_s } } } - up(&dlpar_mem_lock); + mutex_unlock(&dlpar_mem_lock); ehea_info("re-initializing driver complete"); out: return; @@ -3543,7 +3544,6 @@ int __init ehea_module_init(void) memset(&ehea_fw_handles, 0, sizeof(ehea_fw_handles)); memset(&ehea_bcmc_regs, 0, sizeof(ehea_bcmc_regs)); - sema_init(&dlpar_mem_lock, 1); sema_init(&ehea_fw_handles.lock, 1); sema_init(&ehea_bcmc_regs.lock, 1); _ -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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