These pages are accessed through vmap; they are not accessed
by calling page_address(), so they do not need to be kmapped.
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
fs/ntfs3/frecord.c | 11 -----------
1 file changed, 11 deletions(-)
diff --git a/fs/ntfs3/frecord.c b/fs/ntfs3/frecord.c
index c41968fcab00..6fc7b2281fed 100644
--- a/fs/ntfs3/frecord.c
+++ b/fs/ntfs3/frecord.c
@@ -2407,9 +2407,6 @@ int ni_read_frame(struct ntfs_inode *ni, u64 frame_vbo, struct page **pages,
* To simplify decompress algorithm do vmap for source
* and target pages.
*/
- for (i = 0; i < pages_per_frame; i++)
- kmap(pages[i]);
-
frame_size = pages_per_frame << PAGE_SHIFT;
frame_mem = vmap(pages, pages_per_frame, VM_MAP, PAGE_KERNEL);
if (!frame_mem) {
@@ -2655,7 +2652,6 @@ int ni_read_frame(struct ntfs_inode *ni, u64 frame_vbo, struct page **pages,
out:
for (i = 0; i < pages_per_frame; i++) {
pg = pages[i];
- kunmap(pg);
SetPageUptodate(pg);
}
@@ -2742,9 +2738,6 @@ int ni_write_frame(struct ntfs_inode *ni, struct page **pages,
goto out1;
}
- for (i = 0; i < pages_per_frame; i++)
- kmap(pages[i]);
-
/* Map in-memory frame for read-only. */
frame_mem = vmap(pages, pages_per_frame, VM_MAP, PAGE_KERNEL_RO);
if (!frame_mem) {
@@ -2810,11 +2803,7 @@ int ni_write_frame(struct ntfs_inode *ni, struct page **pages,
out3:
vunmap(frame_mem);
-
out2:
- for (i = 0; i < pages_per_frame; i++)
- kunmap(pages[i]);
-
vunmap(frame_ondisk);
out1:
for (i = 0; i < pages_per_frame; i++) {
--
2.47.2
