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Unlock the cache lock before returning when we run out of buffer space

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trying to fill in the full path name.

Reported by:	David Naylor <naylor.b.david@gmail.com>
Approved by:	kib
This commit is contained in:
Joe Marcus Clarke 2009-06-05 16:44:42 +00:00
parent b87ce5545b
commit 8a4444049e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=193518
1 changed files with 4 additions and 1 deletions
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5
sys/kern/vfs_cache.c
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@ -1140,8 +1140,10 @@ vn_fullpath1(struct thread *td, struct vnode *vp, struct vnode *rdir,
error = vn_vptocnp_locked(&vp, buf, &buflen);
if (error)
return (error);
if (buflen == 0)
if (buflen == 0) {
CACHE_RUNLOCK();
return (ENOMEM);
}
buf[--buflen] = '/';
slash_prefixed = 1;
}
@ -1169,6 +1171,7 @@ vn_fullpath1(struct thread *td, struct vnode *vp, struct vnode *rdir,
if (error)
break;
if (buflen == 0) {
CACHE_RUNLOCK();
error = ENOMEM;
SDT_PROBE(vfs, namecache, fullpath, return, error,
startvp, NULL, 0, 0);