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getblk(): do not require devvp vnodes to be locked

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Reported and tested by:	pho
Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D32761
This commit is contained in:
Konstantin Belousov 2021-11-01 09:14:01 +02:00
parent 8db7d16526
commit a7b4a54d2c
1 changed files with 2 additions and 1 deletions
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3
sys/kern/vfs_bio.c
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@ -3911,7 +3911,8 @@ getblkx(struct vnode *vp, daddr_t blkno, daddr_t dblkno, int size, int slpflag,
CTR3(KTR_BUF, "getblk(%p, %ld, %d)", vp, (long)blkno, size);
KASSERT((flags & (GB_UNMAPPED | GB_KVAALLOC)) != GB_KVAALLOC,
("GB_KVAALLOC only makes sense with GB_UNMAPPED"));
ASSERT_VOP_LOCKED(vp, "getblk");
if (vp->v_type != VCHR)
ASSERT_VOP_LOCKED(vp, "getblk");
if (size > maxbcachebuf)
panic("getblk: size(%d) > maxbcachebuf(%d)\n", size,
maxbcachebuf);