We can do more with the balance filer. Enhance it so we can specify also the minimum number of block groups to process. The 'limit' filter now accepts a range (a..b, can be partial) and needs kernel support.
The 'limit=value' filter is equivalent to 'limit=..value' but works on older kernels as well. The min/max values are 32bit, unlike the single-value limit which is 64bit. Signed-off-by: David Sterba <[email protected]> --- cmds-balance.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/cmds-balance.c b/cmds-balance.c index 148039bdc503..05d48651b0b7 100644 --- a/cmds-balance.c +++ b/cmds-balance.c @@ -304,11 +304,19 @@ static int parse_filters(char *filters, struct btrfs_balance_args *args) return 1; } if (parse_u64(value, &args->limit)) { - fprintf(stderr, "Invalid limit argument: %s\n", - value); - return 1; + if (parse_range_u32(value, &args->limit_min, + &args->limit_max)) { + fprintf(stderr, + "Invalid limit argument: %s\n", + value); + return 1; + } + args->flags &= ~BTRFS_BALANCE_ARGS_LIMIT; + args->flags |= BTRFS_BALANCE_ARGS_LIMITS; + } else { + args->flags &= ~BTRFS_BALANCE_ARGS_LIMITS; + args->flags |= BTRFS_BALANCE_ARGS_LIMIT; } - args->flags |= BTRFS_BALANCE_ARGS_LIMIT; } else { fprintf(stderr, "Unrecognized balance option '%s'\n", this_char); -- 2.6.1 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
