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fsverity: push out fsverity_info lookup

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Pass a struct fsverity_info to the verification and readahead helpers,
and push the lookup into the callers.  Right now this is a very dumb
almost mechanic move that open codes a lot of fsverity_info_addr() calls
in the file systems.  The subsequent patches will clean this up.

This prepares for reducing the number of fsverity_info lookups, which
will allow to amortize them better when using a more expensive lookup
method.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Acked-by: David Sterba <dsterba@suse.com> # btrfs
Link: https://lore.kernel.org/r/20260202060754.270269-7-hch@lst.de
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
This commit is contained in:
Christoph Hellwig
2026-02-02 07:06:35 +01:00
committed by Eric Biggers
parent 7e36e04495
commit 47bc2ac9b6
7 changed files with 63 additions and 35 deletions
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4
fs/buffer.c
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@@ -309,9 +309,11 @@ static void verify_bh(struct work_struct *work)
struct postprocess_bh_ctx *ctx =
container_of(work, struct postprocess_bh_ctx, work);
struct buffer_head *bh = ctx->bh;
struct inode *inode = bh->b_folio->mapping->host;
bool valid;
valid = fsverity_verify_blocks(bh->b_folio, bh->b_size, bh_offset(bh));
valid = fsverity_verify_blocks(*fsverity_info_addr(inode), bh->b_folio,
bh->b_size, bh_offset(bh));
end_buffer_async_read(bh, valid);
kfree(ctx);
}