From e511c4a3d2a1f64aafc1f5df37a2ffcf7ef91b55 Mon Sep 17 00:00:00 2001 From: Jane Chu Date: Fri, 13 May 2022 15:10:58 -0700 Subject: dax: introduce DAX_RECOVERY_WRITE dax access mode Up till now, dax_direct_access() is used implicitly for normal access, but for the purpose of recovery write, dax range with poison is requested. To make the interface clear, introduce enum dax_access_mode { DAX_ACCESS, DAX_RECOVERY_WRITE, } where DAX_ACCESS is used for normal dax access, and DAX_RECOVERY_WRITE is used for dax recovery write. Suggested-by: Dan Williams Signed-off-by: Jane Chu Reviewed-by: Christoph Hellwig Cc: Mike Snitzer Reviewed-by: Vivek Goyal Link: https://lore.kernel.org/r/165247982851.52965.11024212198889762949.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams --- fs/fuse/virtio_fs.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'fs/fuse/virtio_fs.c') diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c index 86b7dbb6a0d4..8db53fa67359 100644 --- a/fs/fuse/virtio_fs.c +++ b/fs/fuse/virtio_fs.c @@ -752,7 +752,8 @@ static void virtio_fs_cleanup_vqs(struct virtio_device *vdev, * offset. */ static long virtio_fs_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, - long nr_pages, void **kaddr, pfn_t *pfn) + long nr_pages, enum dax_access_mode mode, + void **kaddr, pfn_t *pfn) { struct virtio_fs *fs = dax_get_private(dax_dev); phys_addr_t offset = PFN_PHYS(pgoff); @@ -772,7 +773,8 @@ static int virtio_fs_zero_page_range(struct dax_device *dax_dev, long rc; void *kaddr; - rc = dax_direct_access(dax_dev, pgoff, nr_pages, &kaddr, NULL); + rc = dax_direct_access(dax_dev, pgoff, nr_pages, DAX_ACCESS, &kaddr, + NULL); if (rc < 0) return rc; memset(kaddr, 0, nr_pages << PAGE_SHIFT); -- cgit v1.2.3