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-rw-r--r--fs/lockd/clnt4xdr.c2
-rw-r--r--fs/lockd/clntlock.c16
-rw-r--r--fs/lockd/clntproc.c8
-rw-r--r--fs/lockd/clntxdr.c2
-rw-r--r--fs/lockd/svc.c11
-rw-r--r--fs/lockd/svclock.c26
-rw-r--r--fs/lockd/svcsubs.c15
-rw-r--r--fs/lockd/xdr.c2
8 files changed, 59 insertions, 23 deletions
diff --git a/fs/lockd/clnt4xdr.c b/fs/lockd/clnt4xdr.c
index 00ec0b9c94d..d3e40db2893 100644
--- a/fs/lockd/clnt4xdr.c
+++ b/fs/lockd/clnt4xdr.c
@@ -14,6 +14,8 @@
#include <linux/sunrpc/stats.h>
#include <linux/lockd/lockd.h>
+#include <uapi/linux/nfs3.h>
+
#define NLMDBG_FACILITY NLMDBG_XDR
#if (NLMCLNT_OHSIZE > XDR_MAX_NETOBJ)
diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
index 0796c45d0d4..41e491b8e5d 100644
--- a/fs/lockd/clntlock.c
+++ b/fs/lockd/clntlock.c
@@ -64,12 +64,17 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
nlm_init->protocol, nlm_version,
nlm_init->hostname, nlm_init->noresvport,
nlm_init->net);
- if (host == NULL) {
- lockd_down(nlm_init->net);
- return ERR_PTR(-ENOLCK);
- }
+ if (host == NULL)
+ goto out_nohost;
+ if (host->h_rpcclnt == NULL && nlm_bind_host(host) == NULL)
+ goto out_nobind;
return host;
+out_nobind:
+ nlmclnt_release_host(host);
+out_nohost:
+ lockd_down(nlm_init->net);
+ return ERR_PTR(-ENOLCK);
}
EXPORT_SYMBOL_GPL(nlmclnt_init);
@@ -144,6 +149,9 @@ int nlmclnt_block(struct nlm_wait *block, struct nlm_rqst *req, long timeout)
timeout);
if (ret < 0)
return -ERESTARTSYS;
+ /* Reset the lock status after a server reboot so we resend */
+ if (block->b_status == nlm_lck_denied_grace_period)
+ block->b_status = nlm_lck_blocked;
req->a_res.status = block->b_status;
return 0;
}
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
index 7e529c3c45c..acd39471634 100644
--- a/fs/lockd/clntproc.c
+++ b/fs/lockd/clntproc.c
@@ -125,14 +125,15 @@ static void nlmclnt_setlockargs(struct nlm_rqst *req, struct file_lock *fl)
{
struct nlm_args *argp = &req->a_args;
struct nlm_lock *lock = &argp->lock;
+ char *nodename = req->a_host->h_rpcclnt->cl_nodename;
nlmclnt_next_cookie(&argp->cookie);
memcpy(&lock->fh, NFS_FH(file_inode(fl->fl_file)), sizeof(struct nfs_fh));
- lock->caller = utsname()->nodename;
+ lock->caller = nodename;
lock->oh.data = req->a_owner;
lock->oh.len = snprintf(req->a_owner, sizeof(req->a_owner), "%u@%s",
(unsigned int)fl->fl_u.nfs_fl.owner->pid,
- utsname()->nodename);
+ nodename);
lock->svid = fl->fl_u.nfs_fl.owner->pid;
lock->fl.fl_start = fl->fl_start;
lock->fl.fl_end = fl->fl_end;
@@ -550,9 +551,6 @@ again:
status = nlmclnt_block(block, req, NLMCLNT_POLL_TIMEOUT);
if (status < 0)
break;
- /* Resend the blocking lock request after a server reboot */
- if (resp->status == nlm_lck_denied_grace_period)
- continue;
if (resp->status != nlm_lck_blocked)
break;
}
diff --git a/fs/lockd/clntxdr.c b/fs/lockd/clntxdr.c
index 9a55797a1cd..3e9f7874b97 100644
--- a/fs/lockd/clntxdr.c
+++ b/fs/lockd/clntxdr.c
@@ -15,6 +15,8 @@
#include <linux/sunrpc/stats.h>
#include <linux/lockd/lockd.h>
+#include <uapi/linux/nfs2.h>
+
#define NLMDBG_FACILITY NLMDBG_XDR
#if (NLMCLNT_OHSIZE > XDR_MAX_NETOBJ)
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index a2aa97d4567..8f27c93f8d2 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -235,6 +235,7 @@ out_err:
if (warned++ == 0)
printk(KERN_WARNING
"lockd_up: makesock failed, error=%d\n", err);
+ svc_shutdown_net(serv, net);
return err;
}
@@ -305,7 +306,7 @@ static int lockd_start_svc(struct svc_serv *serv)
svc_sock_update_bufs(serv);
serv->sv_maxconn = nlm_max_connections;
- nlmsvc_task = kthread_run(lockd, nlmsvc_rqst, serv->sv_name);
+ nlmsvc_task = kthread_run(lockd, nlmsvc_rqst, "%s", serv->sv_name);
if (IS_ERR(nlmsvc_task)) {
error = PTR_ERR(nlmsvc_task);
printk(KERN_WARNING
@@ -435,7 +436,7 @@ EXPORT_SYMBOL_GPL(lockd_down);
* Sysctl parameters (same as module parameters, different interface).
*/
-static ctl_table nlm_sysctls[] = {
+static struct ctl_table nlm_sysctls[] = {
{
.procname = "nlm_grace_period",
.data = &nlm_grace_period,
@@ -489,7 +490,7 @@ static ctl_table nlm_sysctls[] = {
{ }
};
-static ctl_table nlm_sysctl_dir[] = {
+static struct ctl_table nlm_sysctl_dir[] = {
{
.procname = "nfs",
.mode = 0555,
@@ -498,7 +499,7 @@ static ctl_table nlm_sysctl_dir[] = {
{ }
};
-static ctl_table nlm_sysctl_root[] = {
+static struct ctl_table nlm_sysctl_root[] = {
{
.procname = "fs",
.mode = 0555,
@@ -621,8 +622,8 @@ static int __init init_nlm(void)
err_pernet:
#ifdef CONFIG_SYSCTL
unregister_sysctl_table(nlm_sysctl_table);
-#endif
err_sysctl:
+#endif
return err;
}
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index e703318c41d..ab798a88ec1 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -276,7 +276,7 @@ static int nlmsvc_unlink_block(struct nlm_block *block)
dprintk("lockd: unlinking block %p...\n", block);
/* Remove block from list */
- status = posix_unblock_lock(block->b_file->f_file, &block->b_call->a_args.lock.fl);
+ status = posix_unblock_lock(&block->b_call->a_args.lock.fl);
nlmsvc_remove_block(block);
return status;
}
@@ -744,8 +744,20 @@ static int nlmsvc_same_owner(struct file_lock *fl1, struct file_lock *fl2)
return fl1->fl_owner == fl2->fl_owner && fl1->fl_pid == fl2->fl_pid;
}
+/*
+ * Since NLM uses two "keys" for tracking locks, we need to hash them down
+ * to one for the blocked_hash. Here, we're just xor'ing the host address
+ * with the pid in order to create a key value for picking a hash bucket.
+ */
+static unsigned long
+nlmsvc_owner_key(struct file_lock *fl)
+{
+ return (unsigned long)fl->fl_owner ^ (unsigned long)fl->fl_pid;
+}
+
const struct lock_manager_operations nlmsvc_lock_operations = {
.lm_compare_owner = nlmsvc_same_owner,
+ .lm_owner_key = nlmsvc_owner_key,
.lm_notify = nlmsvc_notify_blocked,
.lm_grant = nlmsvc_grant_deferred,
};
@@ -767,6 +779,7 @@ nlmsvc_grant_blocked(struct nlm_block *block)
struct nlm_file *file = block->b_file;
struct nlm_lock *lock = &block->b_call->a_args.lock;
int error;
+ loff_t fl_start, fl_end;
dprintk("lockd: grant blocked lock %p\n", block);
@@ -784,9 +797,16 @@ nlmsvc_grant_blocked(struct nlm_block *block)
}
/* Try the lock operation again */
+ /* vfs_lock_file() can mangle fl_start and fl_end, but we need
+ * them unchanged for the GRANT_MSG
+ */
lock->fl.fl_flags |= FL_SLEEP;
+ fl_start = lock->fl.fl_start;
+ fl_end = lock->fl.fl_end;
error = vfs_lock_file(file->f_file, F_SETLK, &lock->fl, NULL);
lock->fl.fl_flags &= ~FL_SLEEP;
+ lock->fl.fl_start = fl_start;
+ lock->fl.fl_end = fl_end;
switch (error) {
case 0:
@@ -939,6 +959,7 @@ nlmsvc_retry_blocked(void)
unsigned long timeout = MAX_SCHEDULE_TIMEOUT;
struct nlm_block *block;
+ spin_lock(&nlm_blocked_lock);
while (!list_empty(&nlm_blocked) && !kthread_should_stop()) {
block = list_entry(nlm_blocked.next, struct nlm_block, b_list);
@@ -948,6 +969,7 @@ nlmsvc_retry_blocked(void)
timeout = block->b_when - jiffies;
break;
}
+ spin_unlock(&nlm_blocked_lock);
dprintk("nlmsvc_retry_blocked(%p, when=%ld)\n",
block, block->b_when);
@@ -957,7 +979,9 @@ nlmsvc_retry_blocked(void)
retry_deferred_block(block);
} else
nlmsvc_grant_blocked(block);
+ spin_lock(&nlm_blocked_lock);
}
+ spin_unlock(&nlm_blocked_lock);
return timeout;
}
diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c
index 97e87415b14..b6f3b84b6e9 100644
--- a/fs/lockd/svcsubs.c
+++ b/fs/lockd/svcsubs.c
@@ -14,12 +14,11 @@
#include <linux/mutex.h>
#include <linux/sunrpc/svc.h>
#include <linux/sunrpc/addr.h>
-#include <linux/nfsd/nfsfh.h>
-#include <linux/nfsd/export.h>
#include <linux/lockd/lockd.h>
#include <linux/lockd/share.h>
#include <linux/module.h>
#include <linux/mount.h>
+#include <uapi/linux/nfs2.h>
#define NLMDBG_FACILITY NLMDBG_SVCSUBS
@@ -169,7 +168,7 @@ nlm_traverse_locks(struct nlm_host *host, struct nlm_file *file,
again:
file->f_locks = 0;
- lock_flocks(); /* protects i_flock list */
+ spin_lock(&inode->i_lock);
for (fl = inode->i_flock; fl; fl = fl->fl_next) {
if (fl->fl_lmops != &nlmsvc_lock_operations)
continue;
@@ -181,7 +180,7 @@ again:
if (match(lockhost, host)) {
struct file_lock lock = *fl;
- unlock_flocks();
+ spin_unlock(&inode->i_lock);
lock.fl_type = F_UNLCK;
lock.fl_start = 0;
lock.fl_end = OFFSET_MAX;
@@ -193,7 +192,7 @@ again:
goto again;
}
}
- unlock_flocks();
+ spin_unlock(&inode->i_lock);
return 0;
}
@@ -228,14 +227,14 @@ nlm_file_inuse(struct nlm_file *file)
if (file->f_count || !list_empty(&file->f_blocks) || file->f_shares)
return 1;
- lock_flocks();
+ spin_lock(&inode->i_lock);
for (fl = inode->i_flock; fl; fl = fl->fl_next) {
if (fl->fl_lmops == &nlmsvc_lock_operations) {
- unlock_flocks();
+ spin_unlock(&inode->i_lock);
return 1;
}
}
- unlock_flocks();
+ spin_unlock(&inode->i_lock);
file->f_locks = 0;
return 0;
}
diff --git a/fs/lockd/xdr.c b/fs/lockd/xdr.c
index 964666c68a8..9340e7e10ef 100644
--- a/fs/lockd/xdr.c
+++ b/fs/lockd/xdr.c
@@ -16,6 +16,8 @@
#include <linux/sunrpc/stats.h>
#include <linux/lockd/lockd.h>
+#include <uapi/linux/nfs2.h>
+
#define NLMDBG_FACILITY NLMDBG_XDR
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 13:41:53 +0000