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- File systems that wish to inspect the vnode contents or their private

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v_data field before calling vget/vn_lock must check VI_XLOCK manually to
   be sure that v_data is still valid.  Implement this check in two places
   here.
This commit is contained in:
Jeff Roberson 2003-10-05 06:43:03 +00:00
parent ea5c2ab712
commit 6acdfd69be
2 changed files with 16 additions and 0 deletions
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8
sys/gnu/ext2fs/ext2_vfsops.c
View file

@ -577,6 +577,10 @@ loop:
}
nvp = TAILQ_NEXT(vp, v_nmntvnodes);
VI_LOCK(vp);
if (vp->v_iflag & VI_XLOCK) {
VI_UNLOCK(vp);
continue;
}
mtx_unlock(&mntvnode_mtx);
/*
* Step 4: invalidate all inactive vnodes.
@ -906,6 +910,10 @@ loop:
goto loop;
nvp = TAILQ_NEXT(vp, v_nmntvnodes);
VI_LOCK(vp);
if (vp->v_iflag & VI_XLOCK) {
VI_UNLOCK(vp);
continue;
}
mtx_unlock(&mntvnode_mtx);
ip = VTOI(vp);
if (vp->v_type == VNON ||

8
sys/gnu/fs/ext2fs/ext2_vfsops.c
View file

@ -577,6 +577,10 @@ loop:
}
nvp = TAILQ_NEXT(vp, v_nmntvnodes);
VI_LOCK(vp);
if (vp->v_iflag & VI_XLOCK) {
VI_UNLOCK(vp);
continue;
}
mtx_unlock(&mntvnode_mtx);
/*
* Step 4: invalidate all inactive vnodes.
@ -906,6 +910,10 @@ loop:
goto loop;
nvp = TAILQ_NEXT(vp, v_nmntvnodes);
VI_LOCK(vp);
if (vp->v_iflag & VI_XLOCK) {
VI_UNLOCK(vp);
continue;
}
mtx_unlock(&mntvnode_mtx);
ip = VTOI(vp);
if (vp->v_type == VNON ||