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- Check XLOCK prior to accessing v_data.

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This commit is contained in:
Jeff Roberson 2003-10-05 06:43:30 +00:00
parent 6acdfd69be
commit 055cfed702
2 changed files with 12 additions and 0 deletions
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6
sys/coda/coda_subr.c
View File

@ -318,6 +318,11 @@ coda_checkunmounting(mp)
nvp = TAILQ_NEXT(vp, v_nmntvnodes);
if (vp->v_mount != mp)
continue;
VI_LOCK(vp);
if (vp->v_iflag & VI_XLOCK) {
VI_UNLOCK(vp);
continue;
}
cp = VTOC(vp);
count++;
if (!(cp->c_flags & C_UNMOUNTING)) {
@ -325,6 +330,7 @@ coda_checkunmounting(mp)
printf("vp %p, cp %p missed\n", vp, cp);
cp->c_flags |= C_UNMOUNTING;
}
VI_UNLOCK(vp);
}
mtx_unlock(&mntvnode_mtx);
}

6
sys/fs/coda/coda_subr.c
View File

@ -318,6 +318,11 @@ coda_checkunmounting(mp)
nvp = TAILQ_NEXT(vp, v_nmntvnodes);
if (vp->v_mount != mp)
continue;
VI_LOCK(vp);
if (vp->v_iflag & VI_XLOCK) {
VI_UNLOCK(vp);
continue;
}
cp = VTOC(vp);
count++;
if (!(cp->c_flags & C_UNMOUNTING)) {
@ -325,6 +330,7 @@ coda_checkunmounting(mp)
printf("vp %p, cp %p missed\n", vp, cp);
cp->c_flags |= C_UNMOUNTING;
}
VI_UNLOCK(vp);
}
mtx_unlock(&mntvnode_mtx);
}