mm: change anon_vma linking to fix multi-process server scalability issue

[cascardo/linux.git] / arch / ia64 / kernel / perfmon.c

diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 6bcbe21..703062c 100644 (file)
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -2315,6 +2315,7 @@ pfm_smpl_buffer_alloc(struct task_struct *task, struct file *filp, pfm_context_t
                DPRINT(("Cannot allocate vma\n"));
                goto error_kmem;
        }
+       INIT_LIST_HEAD(&vma->anon_vma_chain);
 
        /*
         * partially initialize the vma for the sampling buffer
@@ -2713,7 +2714,7 @@ pfm_context_create(pfm_context_t *ctx, void *arg, int count, struct pt_regs *reg
                        goto buffer_error;
        }
 
-       DPRINT(("ctx=%p flags=0x%x system=%d notify_block=%d excl_idle=%d no_msg=%d ctx_fd=%d \n",
+       DPRINT(("ctx=%p flags=0x%x system=%d notify_block=%d excl_idle=%d no_msg=%d ctx_fd=%d\n",
                ctx,
                ctx_flags,
                ctx->ctx_fl_system,
@@ -3677,7 +3678,7 @@ pfm_restart(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs)
         * "self-monitoring".
         */
        if (CTX_OVFL_NOBLOCK(ctx) == 0 && state == PFM_CTX_MASKED) {
-               DPRINT(("unblocking [%d] \n", task_pid_nr(task)));
+               DPRINT(("unblocking [%d]\n", task_pid_nr(task)));
                complete(&ctx->ctx_restart_done);
        } else {
                DPRINT(("[%d] armed exit trap\n", task_pid_nr(task)));