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authorMark Johnston <[email protected]>2022-10-11 15:29:55 -0400
committerGitHub <[email protected]>2022-10-11 12:29:55 -0700
commited566bf1cd0bdbf85e8c63c1c119e3d2ef5db1f6 (patch)
treece535da84e88c31b85308abc14fce37f9bdfa9c5 /module/os/freebsd
parent4dcc2bde9c8347fd7969871b69e72cba0b6d4ef7 (diff)
FreeBSD: Fix a pair of bugs in zfs_fhtovp()
- Add a zfs_exit() call in an error path, otherwise a lock is leaked. - Remove the fid_gen > 1 check. That appears to be Linux-specific: zfsctl_snapdir_fid() sets fid_gen to 0 or 1 depending on whether the snapshot directory is mounted. On FreeBSD it fails, making snapshot dirs inaccessible via NFS. Reviewed-by: Alexander Motin <[email protected]> Reviewed-by: Ryan Moeller <[email protected]> Reviewed-by: Andriy Gapon <[email protected]> Signed-off-by: Mark Johnston <[email protected]> Fixes: 43dbf8817808 ("FreeBSD: vfsops: use setgen for error case") Closes #14001 Closes #13974
Diffstat (limited to 'module/os/freebsd')
-rw-r--r--module/os/freebsd/zfs/zfs_vfsops.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/module/os/freebsd/zfs/zfs_vfsops.c b/module/os/freebsd/zfs/zfs_vfsops.c
index c65be4c13..4cb7f63b5 100644
--- a/module/os/freebsd/zfs/zfs_vfsops.c
+++ b/module/os/freebsd/zfs/zfs_vfsops.c
@@ -1818,7 +1818,8 @@ zfs_fhtovp(vfs_t *vfsp, fid_t *fidp, int flags, vnode_t **vpp)
return (SET_ERROR(EINVAL));
}
- if (fidp->fid_len == LONG_FID_LEN && (fid_gen > 1 || setgen != 0)) {
+ if (fidp->fid_len == LONG_FID_LEN && setgen != 0) {
+ zfs_exit(zfsvfs, FTAG);
dprintf("snapdir fid: fid_gen (%llu) and setgen (%llu)\n",
(u_longlong_t)fid_gen, (u_longlong_t)setgen);
return (SET_ERROR(EINVAL));