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Diffstat (limited to 'fs_mgr/fs_mgr_fstab.c')
-rw-r--r--fs_mgr/fs_mgr_fstab.c22
1 files changed, 21 insertions, 1 deletions
diff --git a/fs_mgr/fs_mgr_fstab.c b/fs_mgr/fs_mgr_fstab.c
index edd9591..c2da28a 100644
--- a/fs_mgr/fs_mgr_fstab.c
+++ b/fs_mgr/fs_mgr_fstab.c
@@ -15,10 +15,12 @@
*/
#include <ctype.h>
+#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mount.h>
+#include <unistd.h>
#include "fs_mgr_priv.h"
@@ -73,6 +75,19 @@ static struct flag_list fs_mgr_flags[] = {
{ 0, 0 },
};
+static uint64_t calculate_zram_size(unsigned int percentage)
+{
+ uint64_t total;
+
+ total = sysconf(_SC_PHYS_PAGES);
+ total *= percentage;
+ total /= 100;
+
+ total *= sysconf(_SC_PAGESIZE);
+
+ return total;
+}
+
static int parse_flags(char *flags, struct flag_list *fl,
struct fs_mgr_flag_values *flag_vals,
char *fs_options, int fs_options_len)
@@ -146,7 +161,12 @@ static int parse_flags(char *flags, struct flag_list *fl,
} else if ((fl[i].flag == MF_SWAPPRIO) && flag_vals) {
flag_vals->swap_prio = strtoll(strchr(p, '=') + 1, NULL, 0);
} else if ((fl[i].flag == MF_ZRAMSIZE) && flag_vals) {
- flag_vals->zram_size = strtoll(strchr(p, '=') + 1, NULL, 0);
+ int is_percent = !!strrchr(p, '%');
+ unsigned int val = strtoll(strchr(p, '=') + 1, NULL, 0);
+ if (is_percent)
+ flag_vals->zram_size = calculate_zram_size(val);
+ else
+ flag_vals->zram_size = val;
}
break;
}