staging: lustre: lnet: use kmalloc/kvmalloc in router_proc

The buffers allocated in router_proc are to temporarily
hold strings created for procfs files.
So they do not need to be zeroed and are safe to use
GFP_KERNEL.
So use kmalloc() directly except in two cases where it
isn't trivial to confirm that the size is always small.
In those cases, use kvmalloc().

Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 17 insertions, 17 deletions

diff --git a/drivers/staging/lustre/lnet/lnet/router_proc.c b/drivers/staging/lustre/lnet/lnet/router_proc.c
index 43038f930ba1..1a71ffebc889 100644
--- a/drivers/staging/lustre/lnet/lnet/router_proc.c
+++ b/drivers/staging/lustre/lnet/lnet/router_proc.c
@@ -95,7 +95,7 @@ static int __proc_lnet_stats(void *data, int write,
         if (!ctrs)
                 return -ENOMEM;
 
-        LIBCFS_ALLOC(tmpstr, tmpsiz);
+        tmpstr = kmalloc(tmpsiz, GFP_KERNEL);
         if (!tmpstr) {
                 kfree(ctrs);
                 return -ENOMEM;
@@ -118,7 +118,7 @@ static int __proc_lnet_stats(void *data, int write,
                 rc = cfs_trace_copyout_string(buffer, nob,
                                               tmpstr + pos, "\n");
 
-        LIBCFS_FREE(tmpstr, tmpsiz);
+        kfree(tmpstr);
         kfree(ctrs);
         return rc;
 }
@@ -151,7 +151,7 @@ static int proc_lnet_routes(struct ctl_table *table, int write,
         if (!*lenp)
                 return 0;
 
-        LIBCFS_ALLOC(tmpstr, tmpsiz);
+        tmpstr = kmalloc(tmpsiz, GFP_KERNEL);
         if (!tmpstr)
                 return -ENOMEM;
 
@@ -183,7 +183,7 @@ static int proc_lnet_routes(struct ctl_table *table, int write,
 
                 if (ver != LNET_PROC_VERSION(the_lnet.ln_remote_nets_version)) {
                         lnet_net_unlock(0);
-                        LIBCFS_FREE(tmpstr, tmpsiz);
+                        kfree(tmpstr);
                         return -ESTALE;
                 }
 
@@ -248,7 +248,7 @@ static int proc_lnet_routes(struct ctl_table *table, int write,
                 }
         }
 
-        LIBCFS_FREE(tmpstr, tmpsiz);
+        kfree(tmpstr);
 
         if (!rc)
                 *lenp = len;
@@ -275,7 +275,7 @@ static int proc_lnet_routers(struct ctl_table *table, int write,
         if (!*lenp)
                 return 0;
 
-        LIBCFS_ALLOC(tmpstr, tmpsiz);
+        tmpstr = kmalloc(tmpsiz, GFP_KERNEL);
         if (!tmpstr)
                 return -ENOMEM;
 
@@ -303,7 +303,7 @@ static int proc_lnet_routers(struct ctl_table *table, int write,
                 if (ver != LNET_PROC_VERSION(the_lnet.ln_routers_version)) {
                         lnet_net_unlock(0);
 
-                        LIBCFS_FREE(tmpstr, tmpsiz);
+                        kfree(tmpstr);
                         return -ESTALE;
                 }
 
@@ -385,7 +385,7 @@ static int proc_lnet_routers(struct ctl_table *table, int write,
                 }
         }
 
-        LIBCFS_FREE(tmpstr, tmpsiz);
+        kfree(tmpstr);
 
         if (!rc)
                 *lenp = len;
@@ -418,7 +418,7 @@ static int proc_lnet_peers(struct ctl_table *table, int write,
                 return 0;
         }
 
-        LIBCFS_ALLOC(tmpstr, tmpsiz);
+        tmpstr = kmalloc(tmpsiz, GFP_KERNEL);
         if (!tmpstr)
                 return -ENOMEM;
 
@@ -448,7 +448,7 @@ static int proc_lnet_peers(struct ctl_table *table, int write,
 
                 if (ver != LNET_PROC_VERSION(ptable->pt_version)) {
                         lnet_net_unlock(cpt);
-                        LIBCFS_FREE(tmpstr, tmpsiz);
+                        kfree(tmpstr);
                         return -ESTALE;
                 }
 
@@ -556,7 +556,7 @@ static int proc_lnet_peers(struct ctl_table *table, int write,
                         *ppos = LNET_PROC_POS_MAKE(cpt, ver, hash, hoff);
         }
 
-        LIBCFS_FREE(tmpstr, tmpsiz);
+        kfree(tmpstr);
 
         if (!rc)
                 *lenp = len;
@@ -579,7 +579,7 @@ static int __proc_lnet_buffers(void *data, int write,
 
         /* (4 %d) * 4 * LNET_CPT_NUMBER */
         tmpsiz = 64 * (LNET_NRBPOOLS + 1) * LNET_CPT_NUMBER;
-        LIBCFS_ALLOC(tmpstr, tmpsiz);
+        tmpstr = kvmalloc(tmpsiz, GFP_KERNEL);
         if (!tmpstr)
                 return -ENOMEM;
 
@@ -618,7 +618,7 @@ static int __proc_lnet_buffers(void *data, int write,
                 rc = cfs_trace_copyout_string(buffer, nob,
                                               tmpstr + pos, NULL);
 
-        LIBCFS_FREE(tmpstr, tmpsiz);
+        kvfree(tmpstr);
         return rc;
 }
 
@@ -643,7 +643,7 @@ static int proc_lnet_nis(struct ctl_table *table, int write,
         if (!*lenp)
                 return 0;
 
-        LIBCFS_ALLOC(tmpstr, tmpsiz);
+        tmpstr = kvmalloc(tmpsiz, GFP_KERNEL);
         if (!tmpstr)
                 return -ENOMEM;
 
@@ -744,7 +744,7 @@ static int proc_lnet_nis(struct ctl_table *table, int write,
                         *ppos += 1;
         }
 
-        LIBCFS_FREE(tmpstr, tmpsiz);
+        kvfree(tmpstr);
 
         if (!rc)
                 *lenp = len;
@@ -795,7 +795,7 @@ static int __proc_lnet_portal_rotor(void *data, int write,
         int rc;
         int i;
 
-        LIBCFS_ALLOC(buf, buf_len);
+        buf = kmalloc(buf_len, GFP_KERNEL);
         if (!buf)
                 return -ENOMEM;
 
@@ -843,7 +843,7 @@ static int __proc_lnet_portal_rotor(void *data, int write,
         }
         lnet_res_unlock(0);
 out:
-        LIBCFS_FREE(buf, buf_len);
+        kfree(buf);
         return rc;
 }