Long ago, commit edf24abe51493 ("btrfs: sanity mount option parsing and
early mount code") split the btrfs_parse_options() into two parts
(btrfs_parse_early_options() and btrfs_parse_options()). As a result,
btrfs_parse_optins no longer gets called twice and is the last one to parse
mount option string. Therefore there is no need to dup it.
Signed-off-by: Tomohiro Misono <misono.tomoh...@jp.fujitsu.com>
---
fs/btrfs/super.c | 13 +------------
1 file changed, 1 insertion(+), 12 deletions(-)
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 7da78cb8a946..69c1ed398513 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -411,7 +411,7 @@ int btrfs_parse_options(struct btrfs_fs_info *info, char
*options,
unsigned long new_flags)
{
substring_t args[MAX_OPT_ARGS];
- char *p, *num, *orig = NULL;
+ char *p, *num;
u64 cache_gen;
int intarg;
int ret = 0;
@@ -434,16 +434,6 @@ int btrfs_parse_options(struct btrfs_fs_info *info, char
*options,
if (!options)
goto check;
- /*
- * strsep changes the string, duplicate it because parse_options
- * gets called twice
- */
- options = kstrdup(options, GFP_KERNEL);
- if (!options)
- return -ENOMEM;
-
- orig = options;
-
while ((p = strsep(&options, ",")) != NULL) {
int token;
if (!*p)
@@ -884,7 +874,6 @@ int btrfs_parse_options(struct btrfs_fs_info *info, char
*options,
btrfs_info(info, "disk space caching is enabled");
if (!ret && btrfs_test_opt(info, FREE_SPACE_TREE))
btrfs_info(info, "using free space tree");
- kfree(orig);
return ret;
}
--
2.13.6
--
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