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| author | dumbbell <dumbbell@FreeBSD.org> | 2005-10-21 09:15:26 +0000 |
|---|---|---|
| committer | dumbbell <dumbbell@FreeBSD.org> | 2005-10-21 09:15:26 +0000 |
| commit | bfe362635801ae606d60b919f7e7195604f8b661 (patch) | |
| tree | 1f01ffdb5b17a8191596708900c5390c6ea3a960 /sys/gnu | |
| parent | 2c640d0fffd0c9c410cb28dcfadba598bd552012 (diff) | |
| download | FreeBSD-src-bfe362635801ae606d60b919f7e7195604f8b661.zip FreeBSD-src-bfe362635801ae606d60b919f7e7195604f8b661.tar.gz | |
Apply the same fix to a potential race in the ISDOTDOT code
in reiserfs_lookup() that was used to fix an actual race in
ufs_lookup.c:1.78. This is not currently a hazard, but the
bug would be activated by marking reiserfs as MPSAFE.
Reviewed by: mux (mentor)
MFC after: 2 weeks
Diffstat (limited to 'sys/gnu')
| -rw-r--r-- | sys/gnu/fs/reiserfs/reiserfs_namei.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/gnu/fs/reiserfs/reiserfs_namei.c b/sys/gnu/fs/reiserfs/reiserfs_namei.c index 6234d1f..6ab714a 100644 --- a/sys/gnu/fs/reiserfs/reiserfs_namei.c +++ b/sys/gnu/fs/reiserfs/reiserfs_namei.c @@ -30,6 +30,7 @@ reiserfs_lookup(struct vop_cachedlookup_args *ap) int flags = cnp->cn_flags; struct thread *td = cnp->cn_thread; + struct cpu_key *saved_ino; struct vnode *vp; struct vnode *pdp; /* Saved dp during symlink work */ @@ -77,9 +78,10 @@ reiserfs_lookup(struct vop_cachedlookup_args *ap) reiserfs_log(LOG_DEBUG, "reading vnode\n"); pdp = vdp; if (flags & ISDOTDOT) { + saved_ino = (struct cpu_key *)&(de.de_dir_id); VOP_UNLOCK(pdp, 0, td); error = reiserfs_iget(vdp->v_mount, - (struct cpu_key *)&(de.de_dir_id), &vp, td); + saved_ino, &vp, td); vn_lock(pdp, LK_EXCLUSIVE | LK_RETRY, td); if (error != 0) return (error); |
