Merge branch 'linus' into x86/core

Conflicts:

	arch/x86/mm/ioremap.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>

4 files changed, 21 insertions, 12 deletions

diff --git a/fs/exec.c b/fs/exec.c
index da94a6f05df3..fd9234379e8d 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -610,7 +610,7 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	bprm->exec -= stack_shift;
 
 	down_write(&mm->mmap_sem);
-	vm_flags = vma->vm_flags;
+	vm_flags = VM_STACK_FLAGS;
 
 	/*
 	 * Adjust stack execute permissions; explicitly enable for
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index efc015c6128a..44f87caf3683 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -606,7 +606,9 @@ static void dlm_init_lockres(struct dlm_ctxt *dlm,
 
 	res->last_used = 0;
 
+	spin_lock(&dlm->spinlock);
 	list_add_tail(&res->tracking, &dlm->tracking_list);
+	spin_unlock(&dlm->spinlock);
 
 	memset(res->lvb, 0, DLM_LVB_LEN);
 	memset(res->refmap, 0, sizeof(res->refmap));
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 394d25a131a5..80e20d9f2780 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -1554,8 +1554,8 @@ out:
  */
 int ocfs2_file_lock(struct file *file, int ex, int trylock)
 {
-	int ret, level = ex ? LKM_EXMODE : LKM_PRMODE;
-	unsigned int lkm_flags = trylock ? LKM_NOQUEUE : 0;
+	int ret, level = ex ? DLM_LOCK_EX : DLM_LOCK_PR;
+	unsigned int lkm_flags = trylock ? DLM_LKF_NOQUEUE : 0;
 	unsigned long flags;
 	struct ocfs2_file_private *fp = file->private_data;
 	struct ocfs2_lock_res *lockres = &fp->fp_flock;
@@ -1582,7 +1582,7 @@ int ocfs2_file_lock(struct file *file, int ex, int trylock)
 		 * Get the lock at NLMODE to start - that way we
 		 * can cancel the upconvert request if need be.
 		 */
-		ret = ocfs2_lock_create(osb, lockres, LKM_NLMODE, 0);
+		ret = ocfs2_lock_create(osb, lockres, DLM_LOCK_NL, 0);
 		if (ret < 0) {
 			mlog_errno(ret);
 			goto out;
@@ -1597,7 +1597,7 @@ int ocfs2_file_lock(struct file *file, int ex, int trylock)
 	}
 
 	lockres->l_action = OCFS2_AST_CONVERT;
-	lkm_flags |= LKM_CONVERT;
+	lkm_flags |= DLM_LKF_CONVERT;
 	lockres->l_requested = level;
 	lockres_or_flags(lockres, OCFS2_LOCK_BUSY);
 
@@ -1664,7 +1664,7 @@ void ocfs2_file_unlock(struct file *file)
 	if (!(lockres->l_flags & OCFS2_LOCK_ATTACHED))
 		return;
 
-	if (lockres->l_level == LKM_NLMODE)
+	if (lockres->l_level == DLM_LOCK_NL)
 		return;
 
 	mlog(0, "Unlock: \"%s\" flags: 0x%lx, level: %d, act: %d\n",
@@ -1678,11 +1678,11 @@ void ocfs2_file_unlock(struct file *file)
 	lockres_or_flags(lockres, OCFS2_LOCK_BLOCKED);
 	lockres->l_blocking = DLM_LOCK_EX;
 
-	gen = ocfs2_prepare_downconvert(lockres, LKM_NLMODE);
+	gen = ocfs2_prepare_downconvert(lockres, DLM_LOCK_NL);
 	lockres_add_mask_waiter(lockres, &mw, OCFS2_LOCK_BUSY, 0);
 	spin_unlock_irqrestore(&lockres->l_lock, flags);
 
-	ret = ocfs2_downconvert_lock(osb, lockres, LKM_NLMODE, 0, gen);
+	ret = ocfs2_downconvert_lock(osb, lockres, DLM_LOCK_NL, 0, gen);
 	if (ret) {
 		mlog_errno(ret);
 		return;
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index afaee301b0ee..ad3d26ddfe31 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -2427,13 +2427,20 @@ restart:
 	if (iclog->ic_size - iclog->ic_offset < 2*sizeof(xlog_op_header_t)) {
 		xlog_state_switch_iclogs(log, iclog, iclog->ic_size);
 
-		/* If I'm the only one writing to this iclog, sync it to disk */
-		if (atomic_read(&iclog->ic_refcnt) == 1) {
+		/*
+		 * If I'm the only one writing to this iclog, sync it to disk.
+		 * We need to do an atomic compare and decrement here to avoid
+		 * racing with concurrent atomic_dec_and_lock() calls in
+		 * xlog_state_release_iclog() when there is more than one
+		 * reference to the iclog.
+		 */
+		if (!atomic_add_unless(&iclog->ic_refcnt, -1, 1)) {
+			/* we are the only one */
 			spin_unlock(&log->l_icloglock);
-			if ((error = xlog_state_release_iclog(log, iclog)))
+			error = xlog_state_release_iclog(log, iclog);
+			if (error)
 				return error;
 		} else {
-			atomic_dec(&iclog->ic_refcnt);
 			spin_unlock(&log->l_icloglock);
 		}
 		goto restart;