The patch titled
knfsd: simplify nlmsvc_invalidate_all
has been removed from the -mm tree. Its filename is
knfsd-simplify-nlmsvc_invalidate_all.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: knfsd: simplify nlmsvc_invalidate_all
From: NeilBrown <neilb@xxxxxxx>
As a result of previous patches, the loop in nlmsvc_invalidate_all just sets
h_expires for all client/hosts to 0 (though does it in a very complicated
way).
This was possibly meant to trigger early garbage collection but half the time
'0' is in the future and so it infact delays garbage collection.
Pre-aging the 'hosts' is not really needed at this point anyway so we throw
out the loop and nlm_find_client which is no longer needed.
Signed-off-by: Neil Brown <neilb@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
fs/lockd/host.c | 27 ---------------------------
fs/lockd/svcsubs.c | 10 +---------
include/linux/lockd/lockd.h | 4 +---
3 files changed, 2 insertions(+), 39 deletions(-)
diff -puN fs/lockd/host.c~knfsd-simplify-nlmsvc_invalidate_all fs/lockd/host.c
--- a/fs/lockd/host.c~knfsd-simplify-nlmsvc_invalidate_all
+++ a/fs/lockd/host.c
@@ -192,33 +192,6 @@ nlm_destroy_host(struct nlm_host *host)
kfree(host);
}
-struct nlm_host *
-nlm_find_client(void)
-{
- struct hlist_head *chain;
- struct hlist_node *pos;
-
- /* find a nlm_host for a client for which h_killed == 0.
- * and return it
- */
- mutex_lock(&nlm_host_mutex);
- for (chain = nlm_hosts; chain < nlm_hosts + NLM_HOST_NRHASH; ++chain) {
- struct nlm_host *host;
-
- hlist_for_each_entry(host, pos, chain, h_hash) {
- if (host->h_server &&
- host->h_killed == 0) {
- nlm_get_host(host);
- mutex_unlock(&nlm_host_mutex);
- return host;
- }
- }
- }
- mutex_unlock(&nlm_host_mutex);
- return NULL;
-}
-
-
/*
* Create the NLM RPC client for an NLM peer
*/
diff -puN fs/lockd/svcsubs.c~knfsd-simplify-nlmsvc_invalidate_all fs/lockd/svcsubs.c
--- a/fs/lockd/svcsubs.c~knfsd-simplify-nlmsvc_invalidate_all
+++ a/fs/lockd/svcsubs.c
@@ -354,13 +354,11 @@ nlmsvc_free_host_resources(struct nlm_ho
}
/*
- * delete all hosts structs for clients
+ * Remove all locks held for clients
*/
void
nlmsvc_invalidate_all(void)
{
- struct nlm_host *host;
-
/* Release all locks held by NFS clients.
* Previously, the code would call
* nlmsvc_free_host_resources for each client in
@@ -368,10 +366,4 @@ nlmsvc_invalidate_all(void)
* Now we just do it once in nlm_traverse_files.
*/
nlm_traverse_files(NULL, nlmsvc_is_client);
-
- while ((host = nlm_find_client()) != NULL) {
- host->h_expires = 0;
- host->h_killed = 1;
- nlm_release_host(host);
- }
}
diff -puN include/linux/lockd/lockd.h~knfsd-simplify-nlmsvc_invalidate_all include/linux/lockd/lockd.h
--- a/include/linux/lockd/lockd.h~knfsd-simplify-nlmsvc_invalidate_all
+++ a/include/linux/lockd/lockd.h
@@ -45,8 +45,7 @@ struct nlm_host {
unsigned short h_proto; /* transport proto */
unsigned short h_reclaiming : 1,
h_server : 1, /* server side, not client side */
- h_inuse : 1,
- h_killed : 1;
+ h_inuse : 1;
wait_queue_head_t h_gracewait; /* wait while reclaiming */
struct rw_semaphore h_rwsem; /* Reboot recovery lock */
u32 h_state; /* pseudo-state counter */
@@ -169,7 +168,6 @@ void nlm_rebind_host(struct nlm_host
struct nlm_host * nlm_get_host(struct nlm_host *);
void nlm_release_host(struct nlm_host *);
void nlm_shutdown_hosts(void);
-extern struct nlm_host *nlm_find_client(void);
extern void nlm_host_rebooted(const struct sockaddr_in *, const char *, int, u32);
struct nsm_handle *nsm_find(const struct sockaddr_in *, const char *, int);
void nsm_release(struct nsm_handle *);
_
Patches currently in -mm which might be from neilb@xxxxxxx are
origin.patch
vfs-destroy-the-dentries-contributed-by-a-superblock-on-unmounting.patch
knfsd-add-nfs-export-support-to-tmpfs.patch
knfsd-add-nfs-export-support-to-tmpfs-fixes.patch
md-dm-reduce-stack-usage-with-stacked-block-devices.patch
-
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