LU-7727 mdt: fail FMODE_WRITE open if the client is read only

[fs/lustre-release.git] / lustre / lod / lproc_lod.c

diff --git a/lustre/lod/lproc_lod.c b/lustre/lod/lproc_lod.c
index f9f84c0..b02697f 100644 (file)
--- a/lustre/lod/lproc_lod.c
+++ b/lustre/lod/lproc_lod.c
@@ -27,7 +27,7 @@
  * Copyright  2008 Sun Microsystems, Inc. All rights reserved
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, 2014, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -83,7 +83,7 @@ static int lod_stripesize_seq_show(struct seq_file *m, void *v)
  * \retval negative    error code if failed
  */
 static ssize_t
-lod_stripesize_seq_write(struct file *file, const char *buffer,
+lod_stripesize_seq_write(struct file *file, const char __user *buffer,
                         size_t count, loff_t *off)
 {
        struct seq_file   *m = file->private_data;
@@ -139,7 +139,7 @@ static int lod_stripeoffset_seq_show(struct seq_file *m, void *v)
  * \retval negative    error code if failed
  */
 static ssize_t
-lod_stripeoffset_seq_write(struct file *file, const char *buffer,
+lod_stripeoffset_seq_write(struct file *file, const char __user *buffer,
                           size_t count, loff_t *off)
 {
        struct seq_file   *m = file->private_data;
@@ -191,7 +191,7 @@ static int lod_stripetype_seq_show(struct seq_file *m, void *v)
  * \retval negative    error code if failed
  */
 static ssize_t
-lod_stripetype_seq_write(struct file *file, const char *buffer,
+lod_stripetype_seq_write(struct file *file, const char __user *buffer,
                         size_t count, loff_t *off)
 {
        struct seq_file   *m = file->private_data;
@@ -244,7 +244,7 @@ static int lod_stripecount_seq_show(struct seq_file *m, void *v)
  * \retval negative    error code otherwise
  */
 static ssize_t
-lod_stripecount_seq_write(struct file *file, const char *buffer,
+lod_stripecount_seq_write(struct file *file, const char __user *buffer,
                          size_t count, loff_t *off)
 {
        struct seq_file   *m = file->private_data;
@@ -427,7 +427,7 @@ static int lod_qos_thresholdrr_seq_show(struct seq_file *m, void *v)
  * \retval negative    error code if failed
  */
 static ssize_t
-lod_qos_thresholdrr_seq_write(struct file *file, const char *buffer,
+lod_qos_thresholdrr_seq_write(struct file *file, const char __user *buffer,
                              size_t count, loff_t *off)
 {
        struct seq_file   *m = file->private_data;
@@ -483,7 +483,7 @@ static int lod_qos_maxage_seq_show(struct seq_file *m, void *v)
  * \retval negative    error code if failed
  */
 static ssize_t
-lod_qos_maxage_seq_write(struct file *file, const char *buffer,
+lod_qos_maxage_seq_write(struct file *file, const char __user *buffer,
                         size_t count, loff_t *off)
 {
        struct seq_file         *m = file->private_data;
@@ -683,7 +683,7 @@ static int lod_lmv_failout_seq_show(struct seq_file *m, void *v)
  * \retval negative    error code if failed
  */
 static ssize_t
-lod_lmv_failout_seq_write(struct file *file, const char *buffer,
+lod_lmv_failout_seq_write(struct file *file, const char __user *buffer,
                          size_t count, loff_t *off)
 {
        struct seq_file         *m      = file->private_data;
@@ -839,8 +839,10 @@ void lod_procfs_fini(struct lod_device *lod)
 {
        struct obd_device *obd = lod2obd(lod);
 
-       if (lod->lod_symlink != NULL)
+       if (lod->lod_symlink != NULL) {
                lprocfs_remove(&lod->lod_symlink);
+               lod->lod_symlink = NULL;
+       }
 
        if (lod->lod_pool_proc_entry != NULL) {
                lprocfs_remove(&lod->lod_pool_proc_entry);