Use memparse() instead of its own private implementation.

Signed-off-by: Akinobu Mita <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: [email protected]
---
 fs/btrfs/ctree.h |    1 -
 fs/btrfs/ioctl.c |    2 +-
 fs/btrfs/super.c |   31 +++----------------------------
 3 files changed, 4 insertions(+), 30 deletions(-)

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 2aa8ec6..52af317 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2386,7 +2386,6 @@ void btrfs_sysfs_del_super(struct btrfs_fs_info *root);
 ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size);
 
 /* super.c */
-u64 btrfs_parse_size(char *str);
 int btrfs_parse_options(struct btrfs_root *root, char *options);
 int btrfs_sync_fs(struct super_block *sb, int wait);
 
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 645a179..c359efd 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -608,7 +608,7 @@ static noinline int btrfs_ioctl_resize(struct btrfs_root 
*root,
                        mod = 1;
                        sizestr++;
                }
-               new_size = btrfs_parse_size(sizestr);
+               new_size = memparse(sizestr, NULL);
                if (new_size == 0) {
                        ret = -EINVAL;
                        goto out_unlock;
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 8a1ea6e..aa48c6b 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -95,31 +95,6 @@ static match_table_t tokens = {
        {Opt_err, NULL},
 };
 
-u64 btrfs_parse_size(char *str)
-{
-       u64 res;
-       int mult = 1;
-       char *end;
-       char last;
-
-       res = simple_strtoul(str, &end, 10);
-
-       last = end[0];
-       if (isalpha(last)) {
-               last = tolower(last);
-               switch (last) {
-               case 'g':
-                       mult *= 1024;
-               case 'm':
-                       mult *= 1024;
-               case 'k':
-                       mult *= 1024;
-               }
-               res = res * mult;
-       }
-       return res;
-}
-
 /*
  * Regular mount options parser.  Everything that is needed only when
  * reading in a new superblock is parsed here.
@@ -213,7 +188,7 @@ int btrfs_parse_options(struct btrfs_root *root, char 
*options)
                case Opt_max_extent:
                        num = match_strdup(&args[0]);
                        if (num) {
-                               info->max_extent = btrfs_parse_size(num);
+                               info->max_extent = memparse(num, NULL);
                                kfree(num);
 
                                info->max_extent = max_t(u64,
@@ -225,7 +200,7 @@ int btrfs_parse_options(struct btrfs_root *root, char 
*options)
                case Opt_max_inline:
                        num = match_strdup(&args[0]);
                        if (num) {
-                               info->max_inline = btrfs_parse_size(num);
+                               info->max_inline = memparse(num, NULL);
                                kfree(num);
 
                                if (info->max_inline) {
@@ -240,7 +215,7 @@ int btrfs_parse_options(struct btrfs_root *root, char 
*options)
                case Opt_alloc_start:
                        num = match_strdup(&args[0]);
                        if (num) {
-                               info->alloc_start = btrfs_parse_size(num);
+                               info->alloc_start = memparse(num, NULL);
                                kfree(num);
                                printk(KERN_INFO
                                        "btrfs: allocations start at %llu\n",
-- 
1.6.0.6

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