GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-06-21 22:21:21 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Btrfs: Add mount -o nodatasum to turn of file data checksumming

Browse source 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2007-12-14 15:30:32 -05:00
parent e9906a9849
commit b6cda9bcb4
4 changed files with 34 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

17
fs/btrfs/super.c
View file

@ -61,11 +61,12 @@ static void btrfs_put_super (struct super_block * sb)
}
enum {
Opt_subvol, Opt_err,
Opt_subvol, Opt_nodatasum, Opt_err,
};
static match_table_t tokens = {
{Opt_subvol, "subvol=%s"},
{Opt_nodatasum, "nodatasum"},
{Opt_err, NULL}
};
@ -74,7 +75,12 @@ static int parse_options (char * options,
char **subvol_name)
{
char * p;
struct btrfs_fs_info *info = NULL;
substring_t args[MAX_OPT_ARGS];
if (root)
info = root->fs_info;
if (!options)
return 1;
@ -86,7 +92,12 @@ static int parse_options (char * options,
token = match_token(p, tokens, args);
switch (token) {
case Opt_subvol:
*subvol_name = match_strdup(&args[0]);
if (subvol_name)
*subvol_name = match_strdup(&args[0]);
break;
case Opt_nodatasum:
if (root)
btrfs_set_opt(info->mount_opt, NODATASUM);
break;
default:
return 0;
@ -143,6 +154,8 @@ static int btrfs_fill_super(struct super_block * sb, void * data, int silent)
goto fail_close;
}
parse_options((char *)data, tree_root, NULL);
/* this does the super kobj at the same time */
err = btrfs_sysfs_add_super(tree_root->fs_info);
if (err)