diff options
| author | Konstantin Belousov <kib@FreeBSD.org> | 2026-07-26 21:45:07 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2026-07-27 18:46:32 +0000 |
| commit | 34ca5a9e7362b0c820fe339daa2b8d06c58b6fea (patch) | |
| tree | d7dbe2c9de36559f653a4d95d9a2a93129a2f6d1 | |
| parent | c13a9982b56f873c7aa3374a69f6aa296a2d1968 (diff) | |
geom_zero(4): reset the uio vector on each uiomove()
PR: 297062
Tested by: Jordan Gordeev <jgopensource@proton.me>
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D58472
| -rw-r--r-- | sys/geom/zero/g_zero.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/sys/geom/zero/g_zero.c b/sys/geom/zero/g_zero.c index 25d462a9f918..e02fffbd6f02 100644 --- a/sys/geom/zero/g_zero.c +++ b/sys/geom/zero/g_zero.c @@ -83,11 +83,6 @@ g_zero_fill_pages(struct bio *bp) size_t length; vm_offset_t offset; - aiovec.iov_base = g_zero_buffer; - aiovec.iov_len = PAGE_SIZE; - auio.uio_iov = &aiovec; - auio.uio_iovcnt = 1; - auio.uio_offset = 0; auio.uio_segflg = UIO_SYSSPACE; auio.uio_rw = UIO_WRITE; auio.uio_td = curthread; @@ -101,6 +96,12 @@ g_zero_fill_pages(struct bio *bp) bp->bio_resid = bp->bio_length; offset = bp->bio_ma_offset & PAGE_MASK; for (int i = 0; i < bp->bio_ma_n && bp->bio_resid > 0; i++) { + aiovec.iov_base = g_zero_buffer; + aiovec.iov_len = PAGE_SIZE; + auio.uio_iov = &aiovec; + auio.uio_iovcnt = 1; + auio.uio_offset = 0; + length = MIN(PAGE_SIZE - offset, bp->bio_resid); auio.uio_resid = length; |