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vfs_domount_update(): ensure that 'goto end' works

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We need to vfs_op_enter()/vn_seqc_write_start() before jumping to
cleanup.

PR:	274992
Reported by:	trasz
Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
Fixes:	9ef7a491a4
This commit is contained in:
Konstantin Belousov 2023-11-09 22:18:47 +02:00
parent af21145f33
commit ede4c412b3
1 changed files with 2 additions and 3 deletions
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5
sys/kern/vfs_mount.c
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@ -1380,6 +1380,8 @@ vfs_domount_update(
VOP_UNLOCK(vp);
rootvp = NULL;
vfs_op_enter(mp);
vn_seqc_write_begin(vp);
if (vfs_getopt(*optlist, "fsid", (void **)&fsid_up,
&fsid_up_len) == 0) {
@ -1394,9 +1396,6 @@ vfs_domount_update(
vfs_deleteopt(*optlist, "fsid");
}
vfs_op_enter(mp);
vn_seqc_write_begin(vp);
MNT_ILOCK(mp);
if ((mp->mnt_kern_flag & MNTK_UNMOUNT) != 0) {
MNT_IUNLOCK(mp);