d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

tarfs: Fix deadlock between descent and ascent in tarfs_lookup().

Browse Source 
Sponsored by:	Juniper Networks, Inc.
Sponsored by:	Klara, Inc.
Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D38486
This commit is contained in:
Dag-Erling Smørgrav 2023-02-10 17:19:45 +00:00
parent 346483b1f1
commit af0435e16b
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
sys/fs/tarfs/tarfs_vnops.c
View File

@ -165,6 +165,7 @@ tarfs_getattr(struct vop_getattr_args *ap)
static int
tarfs_lookup(struct vop_cachedlookup_args *ap)
{
struct tarfs_mount *tmp;
struct tarfs_node *dirnode, *parent, *tnp;
struct componentname *cnp;
struct vnode *dvp, **vpp;
@ -180,6 +181,7 @@ tarfs_lookup(struct vop_cachedlookup_args *ap)
*vpp = NULLVP;
dirnode = VP_TO_TARFS_NODE(dvp);
parent = dirnode->parent;
tmp = dirnode->tmp;
tnp = NULL;
TARFS_DPF(LOOKUP, "%s(%p=%s, %.*s)\n", __func__,
@ -228,7 +230,7 @@ tarfs_lookup(struct vop_cachedlookup_args *ap)
(tnp->type != VDIR && tnp->type != VLNK))
return (ENOTDIR);
error = vn_vget_ino(dvp, tnp->ino, cnp->cn_lkflags, vpp);
error = VFS_VGET(tmp->vfs, tnp->ino, cnp->cn_lkflags, vpp);
if (error != 0)
return (error);
}