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Btrfs-progs: clean up reduplicate parse_qgroupid() and replace atoi with strtoull

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1. parse_qgroupid() is implemented twice, clean up the reduplicate code.
2. atoi() can not detect errors, so use strtoull() instead of it.

Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Gene Czarcinski <gene@czarc.net>
This commit is contained in:
Wang Shilong 2013-01-20 16:04:15 -05:00 committed by David Sterba
parent f933e084ea
commit 9886166880
3 changed files with 21 additions and 18 deletions
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15
cmds-qgroup.c
View File

@ -24,26 +24,13 @@
#include "ioctl.h"
#include "commands.h"
#include "qgroup.h"
static const char * const qgroup_cmd_group_usage[] = {
"btrfs qgroup <command> [options] <path>",
NULL
};
static u64 parse_qgroupid(char *p)
{
char *s = strchr(p, '/');
u64 level;
u64 id;
if (!s)
return atoll(p);
level = atoll(p);
id = atoll(s + 1);
return (level << 48) | id;
}
static int qgroup_assign(int assign, int argc, char **argv)
{
int ret = 0;

22
qgroup.c
View File

@ -22,15 +22,29 @@
u64 parse_qgroupid(char *p)
{
char *s = strchr(p, '/');
char *ptr_src_end = p + strlen(p);
char *ptr_parse_end = NULL;
u64 level;
u64 id;
if (!s)
return atoll(p);
level = atoll(p);
id = atoll(s + 1);
if (!s) {
id = strtoull(p, &ptr_parse_end, 10);
if (ptr_parse_end != ptr_src_end)
goto err;
return id;
}
level = strtoull(p, &ptr_parse_end, 10);
if (ptr_parse_end != s)
goto err;
id = strtoull(s+1, &ptr_parse_end, 10);
if (ptr_parse_end != ptr_src_end)
goto err;
return (level << 48) | id;
err:
fprintf(stderr, "ERROR:invalid qgroupid\n");
exit(-1);
}
int qgroup_inherit_size(struct btrfs_qgroup_inherit *p)

2
qgroup.h
View File

@ -20,7 +20,9 @@
#define _BTRFS_QGROUP_H
#include "ioctl.h"
#include "kerncompat.h"
u64 parse_qgroupid(char *p);
int qgroup_inherit_size(struct btrfs_qgroup_inherit *p);
int qgroup_inherit_realloc(struct btrfs_qgroup_inherit **inherit,
int incgroups, int inccopies);