diff options
Diffstat (limited to 'fs/nfs_common/grace.c')
| -rw-r--r-- | fs/nfs_common/grace.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/fs/nfs_common/grace.c b/fs/nfs_common/grace.c index 5be08f02a76b..27cd0d13143b 100644 --- a/fs/nfs_common/grace.c +++ b/fs/nfs_common/grace.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Common code for control of lockd and nfsv4 grace periods. * @@ -8,6 +9,7 @@ #include <net/net_namespace.h> #include <net/netns/generic.h> #include <linux/fs.h> +#include <linux/filelock.h> static unsigned int grace_net_id; static DEFINE_SPINLOCK(grace_lock); @@ -41,7 +43,6 @@ EXPORT_SYMBOL_GPL(locks_start_grace); /** * locks_end_grace - * @net: net namespace that this lock manager belongs to * @lm: who this grace period is for * * Call this function to state that the given lock manager is ready to @@ -68,15 +69,20 @@ __state_in_grace(struct net *net, bool open) if (!open) return !list_empty(grace_list); + spin_lock(&grace_lock); list_for_each_entry(lm, grace_list, list) { - if (lm->block_opens) + if (lm->block_opens) { + spin_unlock(&grace_lock); return true; + } } + spin_unlock(&grace_lock); return false; } /** * locks_in_grace + * @net: network namespace * * Lock managers call this function to determine when it is OK for them * to answer ordinary lock requests, and when they should accept only @@ -133,6 +139,7 @@ exit_grace(void) } MODULE_AUTHOR("Jeff Layton <jlayton@primarydata.com>"); +MODULE_DESCRIPTION("NFS client and server infrastructure"); MODULE_LICENSE("GPL"); module_init(init_grace) module_exit(exit_grace) |