diff options
Diffstat (limited to 'bitmap.c')
-rw-r--r-- | bitmap.c | 9 |
1 files changed, 5 insertions, 4 deletions
@@ -131,11 +131,13 @@ bitmap_info_t *bitmap_fd_read(int fd, int brief) */ unsigned long long total_bits = 0, read_bits = 0, dirty_bits = 0; bitmap_info_t *info; - char *buf, *unaligned; + void *buf; int n, skip; - unaligned = malloc(8192*2); - buf = (char*) ((unsigned long)unaligned | 8191)+1; + if (posix_memalign(&buf, 512, 8192) != 0) { + fprintf(stderr, Name ": failed to allocate 8192 bytes\n"); + return NULL; + } n = read(fd, buf, 8192); info = malloc(sizeof(*info)); @@ -154,7 +156,6 @@ bitmap_info_t *bitmap_fd_read(int fd, int brief) fprintf(stderr, Name ": failed to read superblock of bitmap " "file: %s\n", strerror(errno)); free(info); - free(unaligned); return NULL; } memcpy(&info->sb, buf, sizeof(info->sb)); |