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-rw-r--r--fs/lockd/svc4proc.c12
-rw-r--r--fs/lockd/svclock.c10
-rw-r--r--fs/lockd/svcproc.c5
-rw-r--r--fs/lockd/svcsubs.c14
-rw-r--r--fs/lockd/xdr4.c19
5 files changed, 25 insertions, 35 deletions
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
index 176b468a61c7..bf274f23969b 100644
--- a/fs/lockd/svc4proc.c
+++ b/fs/lockd/svc4proc.c
@@ -32,6 +32,10 @@ nlm4svc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp,
if (!nlmsvc_ops)
return nlm_lck_denied_nolocks;
+ if (lock->lock_start > OFFSET_MAX ||
+ (lock->lock_len && ((lock->lock_len - 1) > (OFFSET_MAX - lock->lock_start))))
+ return nlm4_fbig;
+
/* Obtain host handle */
if (!(host = nlmsvc_lookup_host(rqstp, lock->caller, lock->len))
|| (argp->monitor && nsm_monitor(host) < 0))
@@ -50,6 +54,10 @@ nlm4svc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp,
/* Set up the missing parts of the file_lock structure */
lock->fl.fl_file = file->f_file[mode];
lock->fl.fl_pid = current->tgid;
+ lock->fl.fl_start = (loff_t)lock->lock_start;
+ lock->fl.fl_end = lock->lock_len ?
+ (loff_t)(lock->lock_start + lock->lock_len - 1) :
+ OFFSET_MAX;
lock->fl.fl_lmops = &nlmsvc_lock_operations;
nlmsvc_locks_init_private(&lock->fl, host, (pid_t)lock->svid);
if (!lock->fl.fl_owner) {
@@ -87,6 +95,7 @@ __nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_res *resp)
struct nlm_args *argp = rqstp->rq_argp;
struct nlm_host *host;
struct nlm_file *file;
+ struct nlm_lockowner *test_owner;
__be32 rc = rpc_success;
dprintk("lockd: TEST4 called\n");
@@ -96,6 +105,7 @@ __nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_res *resp)
if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
+ test_owner = argp->lock.fl.fl_owner;
/* Now check for conflicting locks */
resp->status = nlmsvc_testlock(rqstp, file, host, &argp->lock, &resp->lock, &resp->cookie);
if (resp->status == nlm_drop_reply)
@@ -103,7 +113,7 @@ __nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_res *resp)
else
dprintk("lockd: TEST4 status %d\n", ntohl(resp->status));
- nlmsvc_release_lockowner(&argp->lock);
+ nlmsvc_put_lockowner(test_owner);
nlmsvc_release_host(host);
nlm_release_file(file);
return rc;
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index cb3658ab9b7a..9c1aa75441e1 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -340,7 +340,7 @@ nlmsvc_get_lockowner(struct nlm_lockowner *lockowner)
return lockowner;
}
-static void nlmsvc_put_lockowner(struct nlm_lockowner *lockowner)
+void nlmsvc_put_lockowner(struct nlm_lockowner *lockowner)
{
if (!refcount_dec_and_lock(&lockowner->count, &lockowner->host->h_lock))
return;
@@ -590,7 +590,6 @@ nlmsvc_testlock(struct svc_rqst *rqstp, struct nlm_file *file,
int error;
int mode;
__be32 ret;
- struct nlm_lockowner *test_owner;
dprintk("lockd: nlmsvc_testlock(%s/%ld, ty=%d, %Ld-%Ld)\n",
nlmsvc_file_inode(file)->i_sb->s_id,
@@ -604,9 +603,6 @@ nlmsvc_testlock(struct svc_rqst *rqstp, struct nlm_file *file,
goto out;
}
- /* If there's a conflicting lock, remember to clean up the test lock */
- test_owner = (struct nlm_lockowner *)lock->fl.fl_owner;
-
mode = lock_to_openmode(&lock->fl);
error = vfs_test_lock(file->f_file[mode], &lock->fl);
if (error) {
@@ -635,10 +631,6 @@ nlmsvc_testlock(struct svc_rqst *rqstp, struct nlm_file *file,
conflock->fl.fl_end = lock->fl.fl_end;
locks_release_private(&lock->fl);
- /* Clean up the test lock */
- lock->fl.fl_owner = NULL;
- nlmsvc_put_lockowner(test_owner);
-
ret = nlm_lck_denied;
out:
return ret;
diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
index 4dc1b40a489a..b09ca35b527c 100644
--- a/fs/lockd/svcproc.c
+++ b/fs/lockd/svcproc.c
@@ -116,6 +116,7 @@ __nlmsvc_proc_test(struct svc_rqst *rqstp, struct nlm_res *resp)
struct nlm_args *argp = rqstp->rq_argp;
struct nlm_host *host;
struct nlm_file *file;
+ struct nlm_lockowner *test_owner;
__be32 rc = rpc_success;
dprintk("lockd: TEST called\n");
@@ -125,6 +126,8 @@ __nlmsvc_proc_test(struct svc_rqst *rqstp, struct nlm_res *resp)
if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
+ test_owner = argp->lock.fl.fl_owner;
+
/* Now check for conflicting locks */
resp->status = cast_status(nlmsvc_testlock(rqstp, file, host, &argp->lock, &resp->lock, &resp->cookie));
if (resp->status == nlm_drop_reply)
@@ -133,7 +136,7 @@ __nlmsvc_proc_test(struct svc_rqst *rqstp, struct nlm_res *resp)
dprintk("lockd: TEST status %d vers %d\n",
ntohl(resp->status), rqstp->rq_vers);
- nlmsvc_release_lockowner(&argp->lock);
+ nlmsvc_put_lockowner(test_owner);
nlmsvc_release_host(host);
nlm_release_file(file);
return rc;
diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c
index 0a22a2faf552..e1c4617de771 100644
--- a/fs/lockd/svcsubs.c
+++ b/fs/lockd/svcsubs.c
@@ -176,7 +176,7 @@ nlm_delete_file(struct nlm_file *file)
}
}
-static int nlm_unlock_files(struct nlm_file *file)
+static int nlm_unlock_files(struct nlm_file *file, fl_owner_t owner)
{
struct file_lock lock;
@@ -184,6 +184,7 @@ static int nlm_unlock_files(struct nlm_file *file)
lock.fl_type = F_UNLCK;
lock.fl_start = 0;
lock.fl_end = OFFSET_MAX;
+ lock.fl_owner = owner;
if (file->f_file[O_RDONLY] &&
vfs_lock_file(file->f_file[O_RDONLY], F_SETLK, &lock, NULL))
goto out_err;
@@ -225,7 +226,7 @@ again:
if (match(lockhost, host)) {
spin_unlock(&flctx->flc_lock);
- if (nlm_unlock_files(file))
+ if (nlm_unlock_files(file, fl->fl_owner))
return 1;
goto again;
}
@@ -282,11 +283,10 @@ nlm_file_inuse(struct nlm_file *file)
static void nlm_close_files(struct nlm_file *file)
{
- struct file *f;
-
- for (f = file->f_file[0]; f <= file->f_file[1]; f++)
- if (f)
- nlmsvc_ops->fclose(f);
+ if (file->f_file[O_RDONLY])
+ nlmsvc_ops->fclose(file->f_file[O_RDONLY]);
+ if (file->f_file[O_WRONLY])
+ nlmsvc_ops->fclose(file->f_file[O_WRONLY]);
}
/*
diff --git a/fs/lockd/xdr4.c b/fs/lockd/xdr4.c
index 856267c0864b..712fdfeb8ef0 100644
--- a/fs/lockd/xdr4.c
+++ b/fs/lockd/xdr4.c
@@ -20,13 +20,6 @@
#include "svcxdr.h"
-static inline loff_t
-s64_to_loff_t(__s64 offset)
-{
- return (loff_t)offset;
-}
-
-
static inline s64
loff_t_to_s64(loff_t offset)
{
@@ -70,8 +63,6 @@ static bool
svcxdr_decode_lock(struct xdr_stream *xdr, struct nlm_lock *lock)
{
struct file_lock *fl = &lock->fl;
- u64 len, start;
- s64 end;
if (!svcxdr_decode_string(xdr, &lock->caller, &lock->len))
return false;
@@ -81,20 +72,14 @@ svcxdr_decode_lock(struct xdr_stream *xdr, struct nlm_lock *lock)
return false;
if (xdr_stream_decode_u32(xdr, &lock->svid) < 0)
return false;
- if (xdr_stream_decode_u64(xdr, &start) < 0)
+ if (xdr_stream_decode_u64(xdr, &lock->lock_start) < 0)
return false;
- if (xdr_stream_decode_u64(xdr, &len) < 0)
+ if (xdr_stream_decode_u64(xdr, &lock->lock_len) < 0)
return false;
locks_init_lock(fl);
fl->fl_flags = FL_POSIX;
fl->fl_type = F_RDLCK;
- end = start + len - 1;
- fl->fl_start = s64_to_loff_t(start);
- if (len == 0 || end < 0)
- fl->fl_end = OFFSET_MAX;
- else
- fl->fl_end = s64_to_loff_t(end);
return true;
}
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