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fs/buffer.c: use b_folio for fsverity work

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Use b_folio now that it exists.  This removes an unnecessary call to
compound_head().  No actual change in behavior.

Link: https://lore.kernel.org/r/20230224232530.98440-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
This commit is contained in:
Eric Biggers 2023-02-24 15:25:30 -08:00
parent 197b6b60ae
commit 8b7d3fe968
1 changed files with 4 additions and 5 deletions
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9
fs/buffer.c
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@ -308,20 +308,19 @@ static void verify_bh(struct work_struct *work)
struct buffer_head *bh = ctx->bh;
bool valid;
valid = fsverity_verify_blocks(page_folio(bh->b_page), bh->b_size,
bh_offset(bh));
valid = fsverity_verify_blocks(bh->b_folio, bh->b_size, bh_offset(bh));
end_buffer_async_read(bh, valid);
kfree(ctx);
}
static bool need_fsverity(struct buffer_head *bh)
{
struct page *page = bh->b_page;
struct inode *inode = page->mapping->host;
struct folio *folio = bh->b_folio;
struct inode *inode = folio->mapping->host;
return fsverity_active(inode) &&
/* needed by ext4 */
page->index < DIV_ROUND_UP(inode->i_size, PAGE_SIZE);
folio->index < DIV_ROUND_UP(inode->i_size, PAGE_SIZE);
}
static void decrypt_bh(struct work_struct *work)