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authorBryan Schumaker <bjschuma@netapp.com>2012-11-29 20:40:40 +0400
committerJ. Bruce Fields <bfields@redhat.com>2012-12-03 18:58:56 +0400
commitfc29171f5b3257694bf508cf4ae51970c97af78c (patch)
tree2951cece565ea99f91a1cb6b601f3f905ee1a2de /fs/nfsd
parent44e34da60b24ca14666534b61cc9579aa4e1eac5 (diff)
downloadlinux-fc29171f5b3257694bf508cf4ae51970c97af78c.tar.xz
NFSD: Clean up forgetting locks
I use the new "forget_n_state()" function to iterate through each client first when searching for locks. This may slow down forgetting locks a little bit, but it implements most of the code needed to forget a specified client's locks. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd')
-rw-r--r--fs/nfsd/nfs4state.c36
1 files changed, 28 insertions, 8 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 2478c8996bda..46bece40b1ce 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -4611,6 +4611,32 @@ u64 nfsd_forget_client(struct nfs4_client *clp, u64 max)
return 1;
}
+static u64 nfsd_foreach_client_lock(struct nfs4_client *clp, u64 max, void (*func)(struct nfs4_lockowner *))
+{
+ struct nfs4_openowner *oop;
+ struct nfs4_lockowner *lop, *lo_next;
+ struct nfs4_ol_stateid *stp, *st_next;
+ u64 count = 0;
+
+ list_for_each_entry(oop, &clp->cl_openowners, oo_perclient) {
+ list_for_each_entry_safe(stp, st_next, &oop->oo_owner.so_stateids, st_perstateowner) {
+ list_for_each_entry_safe(lop, lo_next, &stp->st_lockowners, lo_perstateid) {
+ if (func)
+ func(lop);
+ if (++count == max)
+ return count;
+ }
+ }
+ }
+
+ return count;
+}
+
+u64 nfsd_forget_client_locks(struct nfs4_client *clp, u64 max)
+{
+ return nfsd_foreach_client_lock(clp, max, release_lockowner);
+}
+
u64 nfsd_for_n_state(u64 max, u64 (*func)(struct nfs4_client *, u64))
{
struct nfs4_client *clp, *next;
@@ -4635,11 +4661,6 @@ void nfsd_forget_clients(u64 num)
printk(KERN_INFO "NFSD: Forgot %llu clients", count);
}
-static void release_lockowner_sop(struct nfs4_stateowner *sop)
-{
- release_lockowner(lockowner(sop));
-}
-
static void release_openowner_sop(struct nfs4_stateowner *sop)
{
release_openowner(openowner(sop));
@@ -4666,9 +4687,8 @@ static int nfsd_release_n_owners(u64 num, bool is_open_owner,
void nfsd_forget_locks(u64 num)
{
- struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id);
- int count = nfsd_release_n_owners(num, false, release_lockowner_sop, nn);
- printk(KERN_INFO "NFSD: Forgot %d locks", count);
+ u64 count = nfsd_for_n_state(num, nfsd_forget_client_locks);
+ printk(KERN_INFO "NFSD: Forgot %llu locks", count);
}
void nfsd_forget_openowners(u64 num)