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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 17:39:57 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 17:39:57 +0000 |
commit | dc50eab76b709d68175a358d6e23a5a3890764d3 (patch) | |
tree | c754d0390db060af0213ff994f0ac310e4cfd6e9 /fs/crypto/bio.c | |
parent | Adding debian version 6.6.15-2. (diff) | |
download | linux-dc50eab76b709d68175a358d6e23a5a3890764d3.tar.xz linux-dc50eab76b709d68175a358d6e23a5a3890764d3.zip |
Merging upstream version 6.7.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'fs/crypto/bio.c')
-rw-r--r-- | fs/crypto/bio.c | 39 |
1 files changed, 22 insertions, 17 deletions
diff --git a/fs/crypto/bio.c b/fs/crypto/bio.c index 62e1a3dd83..0ad8c30b8f 100644 --- a/fs/crypto/bio.c +++ b/fs/crypto/bio.c @@ -111,10 +111,14 @@ out: int fscrypt_zeroout_range(const struct inode *inode, pgoff_t lblk, sector_t pblk, unsigned int len) { - const unsigned int blockbits = inode->i_blkbits; - const unsigned int blocksize = 1 << blockbits; - const unsigned int blocks_per_page_bits = PAGE_SHIFT - blockbits; - const unsigned int blocks_per_page = 1 << blocks_per_page_bits; + const struct fscrypt_inode_info *ci = inode->i_crypt_info; + const unsigned int du_bits = ci->ci_data_unit_bits; + const unsigned int du_size = 1U << du_bits; + const unsigned int du_per_page_bits = PAGE_SHIFT - du_bits; + const unsigned int du_per_page = 1U << du_per_page_bits; + u64 du_index = (u64)lblk << (inode->i_blkbits - du_bits); + u64 du_remaining = (u64)len << (inode->i_blkbits - du_bits); + sector_t sector = pblk << (inode->i_blkbits - SECTOR_SHIFT); struct page *pages[16]; /* write up to 16 pages at a time */ unsigned int nr_pages; unsigned int i; @@ -130,8 +134,8 @@ int fscrypt_zeroout_range(const struct inode *inode, pgoff_t lblk, len); BUILD_BUG_ON(ARRAY_SIZE(pages) > BIO_MAX_VECS); - nr_pages = min_t(unsigned int, ARRAY_SIZE(pages), - (len + blocks_per_page - 1) >> blocks_per_page_bits); + nr_pages = min_t(u64, ARRAY_SIZE(pages), + (du_remaining + du_per_page - 1) >> du_per_page_bits); /* * We need at least one page for ciphertext. Allocate the first one @@ -154,21 +158,22 @@ int fscrypt_zeroout_range(const struct inode *inode, pgoff_t lblk, bio = bio_alloc(inode->i_sb->s_bdev, nr_pages, REQ_OP_WRITE, GFP_NOFS); do { - bio->bi_iter.bi_sector = pblk << (blockbits - 9); + bio->bi_iter.bi_sector = sector; i = 0; offset = 0; do { - err = fscrypt_crypt_block(inode, FS_ENCRYPT, lblk, - ZERO_PAGE(0), pages[i], - blocksize, offset, GFP_NOFS); + err = fscrypt_crypt_data_unit(ci, FS_ENCRYPT, du_index, + ZERO_PAGE(0), pages[i], + du_size, offset, + GFP_NOFS); if (err) goto out; - lblk++; - pblk++; - len--; - offset += blocksize; - if (offset == PAGE_SIZE || len == 0) { + du_index++; + sector += 1U << (du_bits - SECTOR_SHIFT); + du_remaining--; + offset += du_size; + if (offset == PAGE_SIZE || du_remaining == 0) { ret = bio_add_page(bio, pages[i++], offset, 0); if (WARN_ON_ONCE(ret != offset)) { err = -EIO; @@ -176,13 +181,13 @@ int fscrypt_zeroout_range(const struct inode *inode, pgoff_t lblk, } offset = 0; } - } while (i != nr_pages && len != 0); + } while (i != nr_pages && du_remaining != 0); err = submit_bio_wait(bio); if (err) goto out; bio_reset(bio, inode->i_sb->s_bdev, REQ_OP_WRITE); - } while (len != 0); + } while (du_remaining != 0); err = 0; out: bio_put(bio); |