On 3/7/18 3:17 AM, Nikolay Borisov wrote: > > > On 2.03.2018 20:46, je...@suse.com wrote: >> From: Jeff Mahoney <je...@suse.com> >> >> It's unlikely we're going to modify a pathname argument, so codify that >> and use const. >> >> Signed-off-by: Jeff Mahoney <je...@suse.com> >> --- >> chunk-recover.c | 4 ++-- >> cmds-device.c | 2 +- >> cmds-fi-usage.c | 6 +++--- >> cmds-rescue.c | 4 ++-- >> send-utils.c | 4 ++-- >> 5 files changed, 10 insertions(+), 10 deletions(-) >> >> diff --git a/chunk-recover.c b/chunk-recover.c >> index 705bcf52..1d30db51 100644 >> --- a/chunk-recover.c >> +++ b/chunk-recover.c >> @@ -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; >> diff --git a/cmds-device.c b/cmds-device.c >> index 86459d1b..a49c9d9d 100644 >> --- a/cmds-device.c >> +++ b/cmds-device.c >> @@ -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) > > Actually the path parameter is not used in this function at all, I'd say > just remove it.
Yep, it's unused, but that's a different project. Add -Wunused-parameter and see what shakes out. :) >> { >> int i; >> int ret = 0;> diff --git a/cmds-fi-usage.c b/cmds-fi-usage.c >> index de7ad668..9a1c76ab 100644 >> --- a/cmds-fi-usage.c >> +++ b/cmds-fi-usage.c >> @@ -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; >> @@ -931,7 +931,7 @@ 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; >> diff --git a/cmds-rescue.c b/cmds-rescue.c >> index c40088ad..c61145bc 100644 >> --- a/cmds-rescue.c >> +++ b/cmds-rescue.c >> @@ -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); > > That path argument is being passed to recover_prepare which can alo use > a const to its path parameter Yep, and it was in the first chunk. >> +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>", >> diff --git a/send-utils.c b/send-utils.c >> index b5289e76..8ce94de1 100644 >> --- a/send-utils.c >> +++ b/send-utils.c >> @@ -28,8 +28,8 @@ >> #include "ioctl.h" >> #include "btrfs-list.h" >> >> -static int btrfs_subvolid_resolve_sub(int fd, char *path, size_t *path_len, >> - u64 subvol_id); >> +static int btrfs_subvolid_resolve_sub(int fd, char *path, >> + size_t *path_len, u64 subvol_id); > > This seems like an unrelated change. As a matter of fact > btrfs_subvolid_resolve_sub is used only by btrfs_subvolid_resolve. So if > you move the latter after the former then you can drop the declaration > at the beginning of the file altogether. Ah, yep. That's the fallout from adding const, reformatting, and removing it. I'll just skip it entirely. -Jeff -- Jeff Mahoney SUSE Labs
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