From f2af793db02d2c2f677bdb5bf8e0efdcbf9c0256 Mon Sep 17 00:00:00 2001 From: Olaf Kirch Date: Wed, 4 Oct 2006 02:15:59 -0700 Subject: [PATCH] knfsd: lockd: make nlm_traverse_* more flexible This patch makes nlm_traverse{locks,blocks,shares} and friends use a function pointer rather than a "action" enum. This function pointer is given two nlm_hosts (one given by the caller, the other taken from the lock/block/share currently visited), and is free to do with them as it wants. If it returns a non-zero value, the lockd/block/share is released. Signed-off-by: Olaf Kirch Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/lockd/lockd.h | 15 +++++++-------- include/linux/lockd/share.h | 3 ++- 2 files changed, 9 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h index 777a91e..8c11456 100644 --- a/include/linux/lockd/lockd.h +++ b/include/linux/lockd/lockd.h @@ -134,13 +134,6 @@ struct nlm_block { }; /* - * Valid actions for nlmsvc_traverse_files - */ -#define NLM_ACT_CHECK 0 /* check for locks */ -#define NLM_ACT_MARK 1 /* mark & sweep */ -#define NLM_ACT_UNLOCK 2 /* release all locks */ - -/* * Global variables */ extern struct rpc_program nlm_program; @@ -183,6 +176,12 @@ void nsm_release(struct nsm_handle *); /* + * This is used in garbage collection and resource reclaim + * A return value != 0 means destroy the lock/block/share + */ +typedef int (*nlm_host_match_fn_t)(struct nlm_host *cur, struct nlm_host *ref); + +/* * Server-side lock handling */ u32 nlmsvc_lock(struct svc_rqst *, struct nlm_file *, @@ -193,7 +192,7 @@ u32 nlmsvc_testlock(struct nlm_file *, struct nlm_lock *, u32 nlmsvc_cancel_blocked(struct nlm_file *, struct nlm_lock *); unsigned long nlmsvc_retry_blocked(void); void nlmsvc_traverse_blocks(struct nlm_host *, struct nlm_file *, - int action); + nlm_host_match_fn_t match); void nlmsvc_grant_reply(struct svc_rqst *, struct nlm_cookie *, u32); /* diff --git a/include/linux/lockd/share.h b/include/linux/lockd/share.h index c75a424..cd7816e 100644 --- a/include/linux/lockd/share.h +++ b/include/linux/lockd/share.h @@ -25,6 +25,7 @@ u32 nlmsvc_share_file(struct nlm_host *, struct nlm_file *, struct nlm_args *); u32 nlmsvc_unshare_file(struct nlm_host *, struct nlm_file *, struct nlm_args *); -void nlmsvc_traverse_shares(struct nlm_host *, struct nlm_file *, int); +void nlmsvc_traverse_shares(struct nlm_host *, struct nlm_file *, + nlm_host_match_fn_t); #endif /* LINUX_LOCKD_SHARE_H */ -- cgit v1.1