From 4c2bf276b56d8d27ddbafcdf056ef3fc60ae50b0 Mon Sep 17 00:00:00 2001 From: David Sterba Date: Tue, 15 Jun 2021 17:15:38 +0200 Subject: [PATCH] btrfs: compression: drop kmap/kunmap from generic helpers 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 --- fs/btrfs/compression.c | 3 +-- fs/btrfs/inode.c | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index 49fdec4230922..aeda426b61211 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -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, diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 06f9f167222b7..c84d42a290c65 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -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; -- 2.30.2