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Help compiller optimize out abd_verify()

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While abd_verify() does nothing when built without debug, compiler
can't optimize it out by itself due to calls to external list_*()
and abd_verify_scatter().  This commit makes it explicit.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Adam Moss <c@yotes.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored-By: iXsystems, Inc.
Closes #12280
This commit is contained in:
Alexander Motin 2021-06-25 19:38:31 -04:00 committed by GitHub
parent 14d2841b53
commit 5e2c8338bf
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 2 additions and 2 deletions
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4
module/zfs/abd.c
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@ -108,15 +108,14 @@ int zfs_abd_scatter_enabled = B_TRUE;
void
abd_verify(abd_t *abd)
{
#ifdef ZFS_DEBUG
ASSERT3U(abd->abd_size, >, 0);
ASSERT3U(abd->abd_size, <=, SPA_MAXBLOCKSIZE);
ASSERT3U(abd->abd_flags, ==, abd->abd_flags & (ABD_FLAG_LINEAR |
ABD_FLAG_OWNER | ABD_FLAG_META | ABD_FLAG_MULTI_ZONE |
ABD_FLAG_MULTI_CHUNK | ABD_FLAG_LINEAR_PAGE | ABD_FLAG_GANG |
ABD_FLAG_GANG_FREE | ABD_FLAG_ZEROS | ABD_FLAG_ALLOCD));
#ifdef ZFS_DEBUG
IMPLY(abd->abd_parent != NULL, !(abd->abd_flags & ABD_FLAG_OWNER));
#endif
IMPLY(abd->abd_flags & ABD_FLAG_META, abd->abd_flags & ABD_FLAG_OWNER);
if (abd_is_linear(abd)) {
ASSERT3P(ABD_LINEAR_BUF(abd), !=, NULL);
@ -133,6 +132,7 @@ abd_verify(abd_t *abd)
} else {
abd_verify_scatter(abd);
}
#endif
}
static void