Fix a race condition in zfs_getattr_fast()

[zfs.git] / module / zfs / zfs_vnops.c

diff --git a/module/zfs/zfs_vnops.c b/module/zfs/zfs_vnops.c
index 3331a17..b7f5daa 100644 (file)
--- a/module/zfs/zfs_vnops.c
+++ b/module/zfs/zfs_vnops.c
@@ -2301,6 +2301,9 @@ zfs_getattr_fast(struct inode *ip, struct kstat *sp)
        znode_t *zp = ITOZ(ip);
        zfs_sb_t *zsb = ITOZSB(ip);
 
+       ZFS_ENTER(zsb);
+       ZFS_VERIFY_ZP(zp);
+
        mutex_enter(&zp->z_lock);
 
        generic_fillattr(ip, sp);
@@ -2316,6 +2319,8 @@ zfs_getattr_fast(struct inode *ip, struct kstat *sp)
 
        mutex_exit(&zp->z_lock);
 
+       ZFS_EXIT(zsb);
+
        return (0);
 }
 EXPORT_SYMBOL(zfs_getattr_fast);