Add the new ioctl to progs.
Signed-off-by: Amit Gud <gud@ksu.edu>
Index: btrfs-progs-unstable/ioctl.h
==================================================================---
btrfs-progs-unstable.orig/ioctl.h
+++ btrfs-progs-unstable/ioctl.h
@@ -58,4 +58,6 @@ struct btrfs_ioctl_vol_args {
struct btrfs_ioctl_vol_args)
#define BTRFS_IOC_COMPRESS _IOW(BTRFS_IOCTL_MAGIC, 15, \
struct btrfs_ioctl_vol_args)
+#define BTRFS_IOC_NODATACOW _IOW(BTRFS_IOCTL_MAGIC, 16, \
+ struct btrfs_ioctl_vol_args)
#endif
Index: btrfs-progs-unstable/btrfsctl.c
==================================================================---
btrfs-progs-unstable.orig/btrfsctl.c
+++ btrfs-progs-unstable/btrfsctl.c
@@ -56,6 +56,7 @@ static void print_usage(void)
printf("\t-a: scans all devices for Btrfs filesystems\n");
printf("\t-c: forces a single FS sync\n");
printf("\t--compress filename: sets compress flag on the file\n");
+ printf("\t--nodatacow filename: sets nodatacow flag on the file\n");
printf("%s\n", BTRFS_BUILD_VERSION);
exit(1);
}
@@ -185,6 +186,12 @@ int main(int ac, char **av)
print_usage();
}
command = BTRFS_IOC_COMPRESS;
+ } else if (strcmp(av[i], "--nodatacow") == 0) {
+ if (i >= ac - 1) {
+ fprintf(stderr, "-r requires an arg\n");
+ print_usage();
+ }
+ command = BTRFS_IOC_NODATACOW;
}
}
if (command == 0) {
--
May the source be with you.
http://www.cis.ksu.edu/~gud
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