| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 096/102] Fix slab name "biovec-(1<<(21-12))" | Date | Fri, 6 Apr 2018 15:24:17 +0200 |
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4.9-stable review patch. If anyone has any objections, please let me know.
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From: Mikulas Patocka <mpatocka@redhat.com>
commit bd5c4facf59648581d2f1692dad7b107bf429954 upstream.
I'm getting a slab named "biovec-(1<<(21-12))". It is caused by unintended expansion of the macro BIO_MAX_PAGES. This patch renames it to biovec-max.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org # v4.14+ Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- block/bio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/block/bio.c +++ b/block/bio.c @@ -42,9 +42,9 @@ * break badly! cannot be bigger than what you can fit into an * unsigned short */ -#define BV(x) { .nr_vecs = x, .name = "biovec-"__stringify(x) } +#define BV(x, n) { .nr_vecs = x, .name = "biovec-"#n } static struct biovec_slab bvec_slabs[BVEC_POOL_NR] __read_mostly = { - BV(1), BV(4), BV(16), BV(64), BV(128), BV(BIO_MAX_PAGES), + BV(1, 1), BV(4, 4), BV(16, 16), BV(64, 64), BV(128, 128), BV(BIO_MAX_PAGES, max), }; #undef BV
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