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ext4: factor out a io_submit_need_new_bio helper

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Factor out a helper to prepare for making this logic a bit more
complex in the next commit.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20260302141922.370070-4-hch@lst.de
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
This commit is contained in:
Christoph Hellwig 2026-03-02 06:18:08 -08:00 committed by Eric Biggers
parent d3fc0edc88
commit 5f18a9d2f7
1 changed files with 11 additions and 2 deletions
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13
fs/ext4/page-io.c
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@ -439,14 +439,23 @@ static void io_submit_init_bio(struct ext4_io_submit *io,
wbc_init_bio(io->io_wbc, bio);
}
static bool io_submit_need_new_bio(struct ext4_io_submit *io,
struct buffer_head *bh)
{
if (bh->b_blocknr != io->io_next_block)
return true;
if (!fscrypt_mergeable_bio_bh(io->io_bio, bh))
return true;
return false;
}
static void io_submit_add_bh(struct ext4_io_submit *io,
struct inode *inode,
struct folio *folio,
struct folio *io_folio,
struct buffer_head *bh)
{
if (io->io_bio && (bh->b_blocknr != io->io_next_block ||
!fscrypt_mergeable_bio_bh(io->io_bio, bh))) {
if (io->io_bio && io_submit_need_new_bio(io, bh)) {
submit_and_retry:
ext4_io_submit(io);
}