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Fix the lookup in the DOTDOT case in the same way as other filesystems do,

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i.e. inlining the vn_vget_ino() algorithm.

Sponsored by:	iXsystems inc.
This commit is contained in:
Davide Italiano 2012-11-14 18:43:58 +00:00
parent 40455cf3af
commit 9dbe0b121c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=243033
1 changed files with 21 additions and 0 deletions
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21
sys/fs/smbfs/smbfs_vnops.c
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@ -1278,9 +1278,30 @@ smbfs_lookup(ap)
goto out;
}
if (flags & ISDOTDOT) {
mp = dvp->v_mount;
error = vfs_busy(mp, MBF_NOWAIT);
if (error != 0) {
vfs_ref(mp);
VOP_UNLOCK(dvp, 0);
error = vfs_busy(mp, 0);
vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY);
vfs_rel(mp);
if (error)
return (ENOENT);
if ((dvp->v_iflag & VI_DOOMED) != 0) {
vfs_unbusy(mp);
return (ENOENT);
}
}
VOP_UNLOCK(dvp, 0);
error = smbfs_nget(mp, dvp, name, nmlen, NULL, &vp);
vfs_unbusy(mp);
vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY);
if ((dvp->v_iflag & VI_DOOMED) != 0) {
if (error == 0)
vput(vp);
error = ENOENT;
}
if (error)
goto out;
*vpp = vp;