git: 34ca5a9e7362 - main - geom_zero(4): reset the uio vector on each uiomove()

The branch main has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=34ca5a9e7362b0c820fe339daa2b8d06c58b6fea

commit 34ca5a9e7362b0c820fe339daa2b8d06c58b6fea
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2026-07-26 21:45:07 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2026-07-27 18:46:32 +0000

    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
---
 sys/geom/zero/g_zero.c | 11 ++++++-----
 1 file 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;