diff options
Diffstat (limited to 'arch/ia64/kernel/perfmon.c')
| -rw-r--r-- | arch/ia64/kernel/perfmon.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index 6407bff6bfd7..1650353e3f77 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -37,8 +37,8 @@ #include <linux/vfs.h> #include <linux/pagemap.h> #include <linux/mount.h> -#include <linux/version.h> #include <linux/bitops.h> +#include <linux/rcupdate.h> #include <asm/errno.h> #include <asm/intrinsics.h> @@ -497,7 +497,7 @@ typedef struct { static pfm_stats_t pfm_stats[NR_CPUS]; static pfm_session_t pfm_sessions; /* global sessions information */ -static spinlock_t pfm_alt_install_check = SPIN_LOCK_UNLOCKED; +static DEFINE_SPINLOCK(pfm_alt_install_check); static pfm_intr_handler_desc_t *pfm_alt_intr_handler; static struct proc_dir_entry *perfmon_dir; @@ -2218,15 +2218,17 @@ static void pfm_free_fd(int fd, struct file *file) { struct files_struct *files = current->files; + struct fdtable *fdt = files_fdtable(files); /* * there ie no fd_uninstall(), so we do it here */ spin_lock(&files->file_lock); - files->fd[fd] = NULL; + rcu_assign_pointer(fdt->fd[fd], NULL); spin_unlock(&files->file_lock); - if (file) put_filp(file); + if (file) + put_filp(file); put_unused_fd(fd); } @@ -4313,6 +4315,7 @@ pfm_context_load(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs) DPRINT(("before cmpxchg() old_ctx=%p new_ctx=%p\n", thread->pfm_context, ctx)); + ret = -EBUSY; old = ia64_cmpxchg(acq, &thread->pfm_context, NULL, ctx, sizeof(pfm_context_t *)); if (old != NULL) { DPRINT(("load_pid [%d] already has a context\n", req->load_pid)); |