On Fri, 2008-10-10 at 16:58 +0100, Andy Whitcroft wrote:
> Pull out all the common filenames and prefixes to a common set of defines.
>
> Signed-off-by: Andy Whitcroft <[EMAIL PROTECTED]>
> Acked-by: Mel Gorman <[EMAIL PROTECTED]>
Acked-by: Adam Litke <[EMAIL PROTECTED]>
> ---
> hugeutils.c | 16 ++++++++++------
> 1 files changed, 10 insertions(+), 6 deletions(-)
>
> diff --git a/hugeutils.c b/hugeutils.c
> index 726899e..7d7f8c3 100644
> --- a/hugeutils.c
> +++ b/hugeutils.c
> @@ -61,6 +61,10 @@ static int hpage_sizes_default_idx = -1;
> #define BUF_SZ 256
> #define MEMINFO_SIZE 2048
>
> +#define MEMINFO "/proc/meminfo"
> +#define PROC_HUGEPAGES_DIR "/proc/sys/vm/"
> +#define SYSFS_HUGEPAGES_DIR "/sys/kernel/mm/hugepages/"
> +
> /*
> * Convert a quantity in a given unit to the next smallest unit by
> * multiplying the quantity by 1024 (eg. convert 1MB to 1024kB).
> @@ -239,7 +243,7 @@ int select_pool_counter(unsigned int counter, unsigned
> long pagesize,
> * between libhugetlbfs and the test suite. For now we will just
> * read /proc/meminfo.
> */
> - default_size = file_read_ulong("/proc/meminfo", "Hugepagesize:");
> + default_size = file_read_ulong(MEMINFO, "Hugepagesize:");
> default_size *= 1024; /* Convert from kB to B */
> if (default_size < 0) {
> ERROR("Cannot determine the default page size\n");
> @@ -249,12 +253,12 @@ int select_pool_counter(unsigned int counter, unsigned
> long pagesize,
> /* If the user is dealing in the default page size, we can use /proc */
> if (pagesize == default_size) {
> if (meminfo_key && key) {
> - strcpy(filename, "/proc/meminfo");
> + strcpy(filename, MEMINFO);
> *key = meminfo_key;
> } else
> - sprintf(filename, "/proc/sys/vm/%s", sysfs_file);
> + sprintf(filename, PROC_HUGEPAGES_DIR "%s", sysfs_file);
> } else /* Use the sysfs interface */
> - sprintf(filename, "/sys/kernel/mm/hugepages/hugepages-%lukB/%s",
> + sprintf(filename, SYSFS_HUGEPAGES_DIR "hugepages-%lukB/%s",
> pagesize / 1024, sysfs_file);
> return 0;
> }
> @@ -300,7 +304,7 @@ static void probe_default_hpage_size(void)
> if (env && strlen(env) > 0)
> size = __lh_parse_page_size(env);
> else {
> - size = file_read_ulong("/proc/meminfo", "Hugepagesize:");
> + size = file_read_ulong(MEMINFO, "Hugepagesize:");
> size *= 1024; /* convert from kB to B */
> }
>
> @@ -676,5 +680,5 @@ long __lh_dump_proc_pid_maps()
>
> long read_meminfo(const char *tag)
> {
> - return file_read_ulong("/proc/meminfo", tag);
> + return file_read_ulong(MEMINFO, tag);
> }
--
Adam Litke - (agl at us.ibm.com)
IBM Linux Technology Center
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