From 2f4246f71d4f302ae57aae804c88fffc4b0478b5 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 3 Jun 2015 18:38:06 -0400 Subject: [PATCH] staging:lustre: cleanup libcfs lock handling Previously with libcfs being built for user land and kernel space wrappers were created to transparently handle locking. Now that user land support has been removed we delete all those locking wrappers with this patch. Many of those changes landed upstream but some nice cleanups still remain that are pushed in this patch. Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/13793 Reviewed-by: Dmitry Eremin Reviewed-by: John L. Hammond Reviewed-by: Andreas Dilger Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/lnet/lnet/acceptor.c | 2 +- drivers/staging/lustre/lustre/libcfs/fail.c | 2 +- .../lustre/lustre/libcfs/linux/linux-tracefile.c | 4 +--- drivers/staging/lustre/lustre/libcfs/module.c | 11 ++--------- drivers/staging/lustre/lustre/libcfs/tracefile.c | 2 +- 5 files changed, 6 insertions(+), 15 deletions(-) diff --git a/drivers/staging/lustre/lnet/lnet/acceptor.c b/drivers/staging/lustre/lnet/lnet/acceptor.c index 69d4b193dd75..954f8d3fcebc 100644 --- a/drivers/staging/lustre/lnet/lnet/acceptor.c +++ b/drivers/staging/lustre/lnet/lnet/acceptor.c @@ -35,9 +35,9 @@ */ #define DEBUG_SUBSYSTEM S_LNET +#include #include "../../include/linux/lnet/lib-lnet.h" - static int accept_port = 988; static int accept_backlog = 127; static int accept_timeout = 5; diff --git a/drivers/staging/lustre/lustre/libcfs/fail.c b/drivers/staging/lustre/lustre/libcfs/fail.c index 92444b0fe2a3..7b7fc215e633 100644 --- a/drivers/staging/lustre/lustre/libcfs/fail.c +++ b/drivers/staging/lustre/lustre/libcfs/fail.c @@ -41,7 +41,7 @@ EXPORT_SYMBOL(cfs_fail_loc); unsigned int cfs_fail_val = 0; EXPORT_SYMBOL(cfs_fail_val); -wait_queue_head_t cfs_race_waitq; +DECLARE_WAIT_QUEUE_HEAD(cfs_race_waitq); EXPORT_SYMBOL(cfs_race_waitq); int cfs_race_state; diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-tracefile.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-tracefile.c index 483cbc82e538..eb10e3b478aa 100644 --- a/drivers/staging/lustre/lustre/libcfs/linux/linux-tracefile.c +++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-tracefile.c @@ -49,7 +49,7 @@ static unsigned int pages_factor[CFS_TCD_TYPE_MAX] = { char *cfs_trace_console_buffers[NR_CPUS][CFS_TCD_TYPE_MAX]; -struct rw_semaphore cfs_tracefile_sem; +static DECLARE_RWSEM(cfs_tracefile_sem); int cfs_tracefile_init_arch(void) { @@ -57,8 +57,6 @@ int cfs_tracefile_init_arch(void) int j; struct cfs_trace_cpu_data *tcd; - init_rwsem(&cfs_tracefile_sem); - /* initialize trace_data */ memset(cfs_trace_data, 0, sizeof(cfs_trace_data)); for (i = 0; i < CFS_TCD_TYPE_MAX; i++) { diff --git a/drivers/staging/lustre/lustre/libcfs/module.c b/drivers/staging/lustre/lustre/libcfs/module.c index 83b1a708b1e3..e60b2e9b9194 100644 --- a/drivers/staging/lustre/lustre/libcfs/module.c +++ b/drivers/staging/lustre/lustre/libcfs/module.c @@ -66,8 +66,6 @@ MODULE_DESCRIPTION("Portals v3.1"); MODULE_LICENSE("GPL"); extern struct miscdevice libcfs_dev; -extern struct rw_semaphore cfs_tracefile_sem; -extern struct mutex cfs_trace_thread_mutex; extern struct cfs_wi_sched *cfs_sched_rehash; extern void libcfs_init_nidstrings(void); @@ -248,8 +246,8 @@ static int libcfs_psdev_release(unsigned long flags, void *args) return 0; } -static struct rw_semaphore ioctl_list_sem; -static struct list_head ioctl_list; +static DECLARE_RWSEM(ioctl_list_sem); +static LIST_HEAD(ioctl_list); int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand) { @@ -392,11 +390,6 @@ static int init_libcfs_module(void) libcfs_arch_init(); libcfs_init_nidstrings(); - init_rwsem(&cfs_tracefile_sem); - mutex_init(&cfs_trace_thread_mutex); - init_rwsem(&ioctl_list_sem); - INIT_LIST_HEAD(&ioctl_list); - init_waitqueue_head(&cfs_race_waitq); rc = libcfs_debug_init(5 * 1024 * 1024); if (rc < 0) { diff --git a/drivers/staging/lustre/lustre/libcfs/tracefile.c b/drivers/staging/lustre/lustre/libcfs/tracefile.c index c86394f7f4d9..6ee2adcf8890 100644 --- a/drivers/staging/lustre/lustre/libcfs/tracefile.c +++ b/drivers/staging/lustre/lustre/libcfs/tracefile.c @@ -52,7 +52,7 @@ union cfs_trace_data_union (*cfs_trace_data[TCD_MAX_TYPES])[NR_CPUS] __cacheline char cfs_tracefile[TRACEFILE_NAME_SIZE]; long long cfs_tracefile_size = CFS_TRACEFILE_SIZE; static struct tracefiled_ctl trace_tctl; -struct mutex cfs_trace_thread_mutex; +static DEFINE_MUTEX(cfs_trace_thread_mutex); static int thread_running; static atomic_t cfs_tage_allocated = ATOMIC_INIT(0); -- 2.30.2