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pseudofs: use vget_prep + vget_finish instead of vget + the interlock

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(cherry picked from commit 43999a5cba)
This commit is contained in:
Mateusz Guzik 2021-05-19 14:20:23 +00:00
parent e9757b0c94
commit af68d00a20
1 changed files with 3 additions and 2 deletions
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5
sys/fs/pseudofs/pseudofs_vncache.c
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@ -120,6 +120,7 @@ pfs_vncache_alloc(struct mount *mp, struct vnode **vpp,
struct pfs_vncache_head *hash;
struct pfs_vdata *pvd, *pvd2;
struct vnode *vp;
enum vgetstate vs;
int error;
/*
@ -134,9 +135,9 @@ retry:
if (pvd->pvd_pn == pn && pvd->pvd_pid == pid &&
pvd->pvd_vnode->v_mount == mp) {
vp = pvd->pvd_vnode;
VI_LOCK(vp);
vs = vget_prep(vp);
mtx_unlock(&pfs_vncache_mutex);
if (vget(vp, LK_EXCLUSIVE | LK_INTERLOCK) == 0) {
if (vget_finish(vp, LK_EXCLUSIVE, vs) == 0) {
++pfs_vncache_hits;
*vpp = vp;
/*