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| author | Konstantin Belousov <kib@FreeBSD.org> | 2021-11-02 02:49:13 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2021-11-19 04:25:29 +0000 |
| commit | 3a12ea648f3b9a7de4fe08a3a9d3ea6d025e8f07 (patch) | |
| tree | 03cde719a5f08a5aa79ed508e3421ac52d49766a | |
| parent | bd625dc3e6767f405d78dd1d5c23bb90fd36627f (diff) | |
| download | src-3a12ea648f3b9a7de4fe08a3a9d3ea6d025e8f07.tar.gz src-3a12ea648f3b9a7de4fe08a3a9d3ea6d025e8f07.zip | |
freevnode(): lock the freeing vnode around destroy_vpollinfo()
(cherry picked from commit d1d675cb304c3cca824fbc9f932dc9d655b1ad24)
| -rw-r--r-- | sys/kern/vfs_subr.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/kern/vfs_subr.c b/sys/kern/vfs_subr.c index da2f90a44d86..ce1f4ed6126e 100644 --- a/sys/kern/vfs_subr.c +++ b/sys/kern/vfs_subr.c @@ -1920,7 +1920,9 @@ freevnode(struct vnode *vp) mac_vnode_destroy(vp); #endif if (vp->v_pollinfo != NULL) { + vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); destroy_vpollinfo(vp->v_pollinfo); + VOP_UNLOCK(vp); vp->v_pollinfo = NULL; } vp->v_mountedhere = NULL; |