@@ -172,10 +172,9 @@ static int check_compressed_csum(struct btrfs_inode *inode, struct bio *bio,
/* Hash through the page sector by sector */
for (pg_offset = 0; pg_offset < bytes_left;
pg_offset += sectorsize) {
- kaddr = kmap_atomic(page);
+ kaddr = page_address(page);
crypto_shash_digest(shash, kaddr + pg_offset,
sectorsize, csum);
- kunmap_atomic(kaddr);
if (memcmp(&csum, cb_sum, csum_size) != 0) {
btrfs_print_data_csum_error(inode, disk_start,
@@ -286,9 +286,8 @@ static int insert_inline_extent(struct btrfs_trans_handle *trans,
cur_size = min_t(unsigned long, compressed_size,
PAGE_SIZE);
- kaddr = kmap_atomic(cpage);
+ kaddr = page_address(cpage);
write_extent_buffer(leaf, kaddr, ptr, cur_size);
- kunmap_atomic(kaddr);
i++;
ptr += cur_size;
The pages in compressed_pages are not from highmem anymore so we can drop the mapping for checksum calculation and inline extent. Signed-off-by: David Sterba <dsterba@suse.com> --- fs/btrfs/compression.c | 3 +-- fs/btrfs/inode.c | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-)