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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-02-20 12:33:41 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-02-20 12:33:41 -0800 |
| commit | 6639c3ce7fd217c22b26aa9f2a3cb69dc19221f8 (patch) | |
| tree | 743eadc88bc0422c227484805f97d2b23b21fb3b /fs/f2fs | |
| parent | f18f9845f2f10d3d1fc63e4ad16ee52d2d9292fa (diff) | |
| parent | 51e4e3153ebc32d3280d5d17418ae6f1a44f1ec1 (diff) | |
Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux
Pull fsverity updates from Eric Biggers:
"Fix the longstanding implementation limitation that fsverity was only
supported when the Merkle tree block size, filesystem block size, and
PAGE_SIZE were all equal.
Specifically, add support for Merkle tree block sizes less than
PAGE_SIZE, and make ext4 support fsverity on filesystems where the
filesystem block size is less than PAGE_SIZE.
Effectively, this means that fsverity can now be used on systems with
non-4K pages, at least on ext4. These changes have been tested using
the verity group of xfstests, newly updated to cover the new code
paths.
Also update fs/verity/ to support verifying data from large folios.
There's also a similar patch for fs/crypto/, to support decrypting
data from large folios, which I'm including in here to avoid a merge
conflict between the fscrypt and fsverity branches"
* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux:
fscrypt: support decrypting data from large folios
fsverity: support verifying data from large folios
fsverity.rst: update git repo URL for fsverity-utils
ext4: allow verity with fs block size < PAGE_SIZE
fs/buffer.c: support fsverity in block_read_full_folio()
f2fs: simplify f2fs_readpage_limit()
ext4: simplify ext4_readpage_limit()
fsverity: support enabling with tree block size < PAGE_SIZE
fsverity: support verification with tree block size < PAGE_SIZE
fsverity: replace fsverity_hash_page() with fsverity_hash_block()
fsverity: use EFBIG for file too large to enable verity
fsverity: store log2(digest_size) precomputed
fsverity: simplify Merkle tree readahead size calculation
fsverity: use unsigned long for level_start
fsverity: remove debug messages and CONFIG_FS_VERITY_DEBUG
fsverity: pass pos and size to ->write_merkle_tree_block
fsverity: optimize fsverity_cleanup_inode() on non-verity files
fsverity: optimize fsverity_prepare_setattr() on non-verity files
fsverity: optimize fsverity_file_open() on non-verity files
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/data.c | 3 | ||||
| -rw-r--r-- | fs/f2fs/verity.c | 6 |
2 files changed, 4 insertions, 5 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 97e816590cd9..8630df80fedb 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -2053,8 +2053,7 @@ out: static inline loff_t f2fs_readpage_limit(struct inode *inode) { - if (IS_ENABLED(CONFIG_FS_VERITY) && - (IS_VERITY(inode) || f2fs_verity_in_progress(inode))) + if (IS_ENABLED(CONFIG_FS_VERITY) && IS_VERITY(inode)) return inode->i_sb->s_maxbytes; return i_size_read(inode); diff --git a/fs/f2fs/verity.c b/fs/f2fs/verity.c index c352fff88a5e..f320ed8172ec 100644 --- a/fs/f2fs/verity.c +++ b/fs/f2fs/verity.c @@ -276,11 +276,11 @@ static struct page *f2fs_read_merkle_tree_page(struct inode *inode, } static int f2fs_write_merkle_tree_block(struct inode *inode, const void *buf, - u64 index, int log_blocksize) + u64 pos, unsigned int size) { - loff_t pos = f2fs_verity_metadata_pos(inode) + (index << log_blocksize); + pos += f2fs_verity_metadata_pos(inode); - return pagecache_write(inode, buf, 1 << log_blocksize, pos); + return pagecache_write(inode, buf, size, pos); } const struct fsverity_operations f2fs_verityops = { |