ext4: Use kstrtoul() instead of parse_strtoul()

In parse_strtoul() we're still using deprecated simple_strtoul().  Remove
parse_strtoul() altogether and replace it with kstrtoul()

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

1 files changed, 9 insertions, 18 deletions

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index f355c28fa080..bfa29ecfb47a 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2394,19 +2394,6 @@ static int parse_strtoull(const char *buf,
         return ret;
 }
 
-static int parse_strtoul(const char *buf,
-                unsigned long max, unsigned long *value)
-{
-        char *endp;
-
-        *value = simple_strtoul(skip_spaces(buf), &endp, 0);
-        endp = skip_spaces(endp);
-        if (*endp || *value > max)
-                return -EINVAL;
-
-        return 0;
-}
-
 static ssize_t delayed_allocation_blocks_show(struct ext4_attr *a,
                                               struct ext4_sb_info *sbi,
                                               char *buf)
@@ -2446,11 +2433,13 @@ static ssize_t inode_readahead_blks_store(struct ext4_attr *a,
                                           const char *buf, size_t count)
 {
         unsigned long t;
+        int ret;
 
-        if (parse_strtoul(buf, 0x40000000, &t))
-                return -EINVAL;
+        ret = kstrtoul(skip_spaces(buf), 0, &t);
+        if (ret)
+                return ret;
 
-        if (t && !is_power_of_2(t))
+        if (t && (!is_power_of_2(t) || t > 0x40000000))
                 return -EINVAL;
 
         sbi->s_inode_readahead_blks = t;
@@ -2471,9 +2460,11 @@ static ssize_t sbi_ui_store(struct ext4_attr *a,
 {
         unsigned int *ui = (unsigned int *) (((char *) sbi) + a->offset);
         unsigned long t;
+        int ret;
 
-        if (parse_strtoul(buf, 0xffffffff, &t))
-                return -EINVAL;
+        ret = kstrtoul(skip_spaces(buf), 0, &t);
+        if (ret)
+                return ret;
         *ui = t;
         return count;
 }