diff options
| author | Christoph Hellwig <hch@lst.de> | 2025-04-09 13:10:42 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2025-05-15 14:30:47 +0200 |
| commit | 8d243aa9a85d66d5b5c423adae3f837954f72513 (patch) | |
| tree | 2d6dd89e0e9032b6c4a99d8f46a5dd0c99893fc7 /fs/btrfs/compression.c | |
| parent | adbfd189c4695862c464da87b3e574241452d73d (diff) | |
btrfs: use bvec_kmap_local() in btrfs_decompress_buf2page()
This removes the last direct poke into bvec internals in btrfs.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/compression.c')
| -rw-r--r-- | fs/btrfs/compression.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index d0ed078e5334..b359ba41e7bd 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -1198,6 +1198,7 @@ int btrfs_decompress_buf2page(const char *buf, u32 buf_len, u32 copy_start; /* Offset inside the full decompressed extent */ u32 bvec_offset; + void *kaddr; bvec = bio_iter_iovec(orig_bio, orig_bio->bi_iter); /* @@ -1220,10 +1221,12 @@ int btrfs_decompress_buf2page(const char *buf, u32 buf_len, * @buf + @buf_len. */ ASSERT(copy_start - decompressed < buf_len); - memcpy_to_page(bvec.bv_page, bvec.bv_offset, - buf + copy_start - decompressed, copy_len); - cur_offset += copy_len; + kaddr = bvec_kmap_local(&bvec); + memcpy(kaddr, buf + copy_start - decompressed, copy_len); + kunmap_local(kaddr); + + cur_offset += copy_len; bio_advance(orig_bio, copy_len); /* Finished the bio */ if (!orig_bio->bi_iter.bi_size) |