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| author | kib <kib@FreeBSD.org> | 2008-04-04 09:37:57 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2008-04-04 09:37:57 +0000 |
| commit | dae02901d4b70eed4b1ba8f47235c1316e802c58 (patch) | |
| tree | 291eb8c5f3c57031a2baf19d82176467a01cd661 /sys/fs/fdescfs | |
| parent | 15c3f17df08bbfcf604019832f4f92806388ef32 (diff) | |
| download | FreeBSD-src-dae02901d4b70eed4b1ba8f47235c1316e802c58.zip FreeBSD-src-dae02901d4b70eed4b1ba8f47235c1316e802c58.tar.gz | |
The temporary workaround for the call to the vget() without lock type in
the fdesc_allocvp(). The caller of the fdesc_allocvp() expects that the
returned vnode is not reclaimed. Do lock the vnode exclusive and drop
the lock after.
Reported by: pho
Reviewed by: jeff
Diffstat (limited to 'sys/fs/fdescfs')
| -rw-r--r-- | sys/fs/fdescfs/fdesc_vnops.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/fs/fdescfs/fdesc_vnops.c b/sys/fs/fdescfs/fdesc_vnops.c index 44b7310..06b1718 100644 --- a/sys/fs/fdescfs/fdesc_vnops.c +++ b/sys/fs/fdescfs/fdesc_vnops.c @@ -116,9 +116,11 @@ fdesc_allocvp(ftype, ix, mp, vpp, td) loop: LIST_FOREACH(fd, fc, fd_hash) { if (fd->fd_ix == ix && fd->fd_vnode->v_mount == mp) { - if (vget(fd->fd_vnode, 0, td)) + if (vget(fd->fd_vnode, LK_EXCLUSIVE | LK_CANRECURSE, + td)) goto loop; *vpp = fd->fd_vnode; + VOP_UNLOCK(*vpp, 0); return (error); } } |
