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Commit e9de427e authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse 

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: fix "direct_io" private mmap
  fuse: fix argument type in fuse_get_user_pages()
parents 9fc0178c 3121bfe7

fs/fuse/file.c

+5 −3
Original line number Diff line number Diff line
@@ -938,9 +938,9 @@ static void fuse_release_user_pages(struct fuse_req *req, int write) 
}



static int fuse_get_user_pages(struct fuse_req *req, const char __user *buf,

			       unsigned *nbytesp, int write)

			       size_t *nbytesp, int write)

{

	unsigned nbytes = *nbytesp;

	size_t nbytes = *nbytesp;

	unsigned long user_addr = (unsigned long) buf;

	unsigned offset = user_addr & ~PAGE_MASK;

	int npages;
@@ -955,7 +955,7 @@ static int fuse_get_user_pages(struct fuse_req *req, const char __user *buf, 
		return 0;

	}



	nbytes = min(nbytes, (unsigned) FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT);

	nbytes = min_t(size_t, nbytes, FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT);

	npages = (nbytes + offset + PAGE_SIZE - 1) >> PAGE_SHIFT;

	npages = clamp(npages, 1, FUSE_MAX_PAGES_PER_REQ);

	down_read(&current->mm->mmap_sem);
@@ -1298,6 +1298,8 @@ static int fuse_direct_mmap(struct file *file, struct vm_area_struct *vma) 
	if (vma->vm_flags & VM_MAYSHARE)

		return -ENODEV;



	invalidate_inode_pages2(file->f_mapping);



	return generic_file_mmap(file, vma);

}