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vfs: clear the tmp free list flag before taking the free vnode list lock

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Safe access is already guaranteed because of the mnt_listmx lock.
This commit is contained in:
Mateusz Guzik 2016-10-08 13:36:59 +00:00
parent da8fc8855c
commit c6c44ff7eb
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=306841
1 changed files with 2 additions and 2 deletions
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4
sys/kern/vfs_subr.c
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@ -1066,16 +1066,16 @@ vnlru_return_batch_locked(struct mount *mp)
if (mp->mnt_tmpfreevnodelistsize == 0)
return;
mtx_lock(&vnode_free_list_mtx);
TAILQ_FOREACH(vp, &mp->mnt_tmpfreevnodelist, v_actfreelist) {
VNASSERT((vp->v_mflag & VMP_TMPMNTFREELIST) != 0, vp,
("vnode without VMP_TMPMNTFREELIST on mnt_tmpfreevnodelist"));
vp->v_mflag &= ~VMP_TMPMNTFREELIST;
}
mtx_lock(&vnode_free_list_mtx);
TAILQ_CONCAT(&vnode_free_list, &mp->mnt_tmpfreevnodelist, v_actfreelist);
freevnodes += mp->mnt_tmpfreevnodelistsize;
mp->mnt_tmpfreevnodelistsize = 0;
mtx_unlock(&vnode_free_list_mtx);
mp->mnt_tmpfreevnodelistsize = 0;
}
static void