LU-9091 sysfs: use string helper like functions for sysfs

[fs/lustre-release.git] / lustre / lov / lproc_lov.c

diff --git a/lustre/lov/lproc_lov.c b/lustre/lov/lproc_lov.c
index bce82d2..a65b250 100644 (file)
--- a/lustre/lov/lproc_lov.c
+++ b/lustre/lov/lproc_lov.c
@@ -56,16 +56,23 @@ static ssize_t lov_stripesize_seq_write(struct file *file,
 {
        struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
        struct lov_desc *desc;
 {
        struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
        struct lov_desc *desc;

-       s64 val;
+       char kernbuf[22] = "";
+       u64 val;

        int rc;
 
        LASSERT(dev != NULL);
        desc = &dev->u.lov.desc;
        int rc;
 
        LASSERT(dev != NULL);
        desc = &dev->u.lov.desc;

-       rc = lprocfs_str_with_units_to_s64(buffer, count, &val, '1');
-       if (rc)
+
+       if (count >= sizeof(kernbuf))
+               return -EINVAL;
+
+       if (copy_from_user(kernbuf, buffer, count))
+               return -EFAULT;
+       kernbuf[count] = 0;
+
+       rc = sysfs_memparse(kernbuf, count, &val, "B");
+       if (rc < 0)

                return rc;
                return rc;

-       if (val < 0)
-               return -ERANGE;

 
        lov_fix_desc_stripe_size(&val);
        desc->ld_default_stripe_size = val;
 
        lov_fix_desc_stripe_size(&val);
        desc->ld_default_stripe_size = val;