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btrfs-progs: constify pathnames passed as arguments 

It's unlikely we're going to modify a pathname argument, so codify that
and use const.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Jeff Mahoney 2018-05-16 17:38:36 -04:00 committed by David Sterba
parent 66d90453cd
commit d265a79a25
4 changed files with 8 additions and 8 deletions
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4
chunk-recover.c
View File

@ -1492,7 +1492,7 @@ out:
return ERR_PTR(ret);
}
static int recover_prepare(struct recover_control *rc, char *path)
static int recover_prepare(struct recover_control *rc, const char *path)
{
int ret;
int fd;
@ -2296,7 +2296,7 @@ static void validate_rebuild_chunks(struct recover_control *rc)
/*
* Return 0 when successful, < 0 on error and > 0 if aborted by user
*/
int btrfs_recover_chunk_tree(char *path, int verbose, int yes)
int btrfs_recover_chunk_tree(const char *path, int verbose, int yes)
{
int ret = 0;
struct btrfs_root *root = NULL;

2
cmds-device.c
View File

@ -526,7 +526,7 @@ static const char * const cmd_device_usage_usage[] = {
NULL
};
static int _cmd_device_usage(int fd, char *path, unsigned unit_mode)
static int _cmd_device_usage(int fd, const char *path, unsigned unit_mode)
{
int i;
int ret = 0;

6
cmds-fi-usage.c
View File

@ -227,7 +227,7 @@ static int cmp_btrfs_ioctl_space_info(const void *a, const void *b)
/*
* This function load all the information about the space usage
*/
static struct btrfs_ioctl_space_args *load_space_info(int fd, char *path)
static struct btrfs_ioctl_space_args *load_space_info(int fd, const char *path)
{
struct btrfs_ioctl_space_args *sargs = NULL, *sargs_orig = NULL;
int ret, count;
@ -305,7 +305,7 @@ static void get_raid56_used(struct chunk_info *chunks, int chunkcount,
#define MIN_UNALOCATED_THRESH SZ_16M
static int print_filesystem_usage_overall(int fd, struct chunk_info *chunkinfo,
int chunkcount, struct device_info *devinfo, int devcount,
char *path, unsigned unit_mode)
const char *path, unsigned unit_mode)
{
struct btrfs_ioctl_space_args *sargs = NULL;
int i;
@ -933,7 +933,7 @@ static void _cmd_filesystem_usage_linear(unsigned unit_mode,
static int print_filesystem_usage_by_chunk(int fd,
struct chunk_info *chunkinfo, int chunkcount,
struct device_info *devinfo, int devcount,
char *path, unsigned unit_mode, int tabular)
const char *path, unsigned unit_mode, int tabular)
{
struct btrfs_ioctl_space_args *sargs;
int ret = 0;

4
cmds-rescue.c
View File

@ -32,8 +32,8 @@ static const char * const rescue_cmd_group_usage[] = {
NULL
};
int btrfs_recover_chunk_tree(char *path, int verbose, int yes);
int btrfs_recover_superblocks(char *path, int verbose, int yes);
int btrfs_recover_chunk_tree(const char *path, int verbose, int yes);
int btrfs_recover_superblocks(const char *path, int verbose, int yes);
static const char * const cmd_rescue_chunk_recover_usage[] = {
"btrfs rescue chunk-recover [options] <device>",