VisionFive2 Linux kernel

StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)

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author: Andrea Arcangeli <aarcange@redhat.com> 2017-02-22 15:42:15 -0800 committer: Linus Torvalds <torvalds@linux-foundation.org> 2017-02-22 16:41:28 -0800 commit: a94720bf821dd63e72176da5f423ba7935dde67d parent: 8474901a33d8a27958bfa99e78736863abd67874
Commit Summary:
userfaultfd: use vma_is_anonymous
Diffstat:
1 file changed, 4 insertions, 4 deletions
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 71e917387ec3..7e8f0d60718d 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -830,7 +830,7 @@ static int userfaultfd_register(struct userfaultfd_ctx *ctx,
 
 		/* check not compatible vmas */
 		ret = -EINVAL;
-		if (cur->vm_ops)
+		if (!vma_is_anonymous(cur))
 			goto out_unlock;
 
 		/*
@@ -855,7 +855,7 @@ static int userfaultfd_register(struct userfaultfd_ctx *ctx,
 	do {
 		cond_resched();
 
-		BUG_ON(vma->vm_ops);
+		BUG_ON(!vma_is_anonymous(vma));
 		BUG_ON(vma->vm_userfaultfd_ctx.ctx &&
 		       vma->vm_userfaultfd_ctx.ctx != ctx);
 
@@ -981,7 +981,7 @@ static int userfaultfd_unregister(struct userfaultfd_ctx *ctx,
 		 * provides for more strict behavior to notice
 		 * unregistration errors.
 		 */
-		if (cur->vm_ops)
+		if (!vma_is_anonymous(cur))
 			goto out_unlock;
 
 		found = true;
@@ -995,7 +995,7 @@ static int userfaultfd_unregister(struct userfaultfd_ctx *ctx,
 	do {
 		cond_resched();
 
-		BUG_ON(vma->vm_ops);
+		BUG_ON(!vma_is_anonymous(vma));
 
 		/*
 		 * Nothing to do: this vma is already registered into this