marko10_000
/
btrfs-progs
forked from Mirrors/btrfs-progs
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

btrfs-progs: balance: enhance the usage filter with range 

We can do more with the balance usage filter. Enhance it so we can
specify also the minimum usage of the block groups to process. The
'usage' filter now accepts a range (a..b, can be partial) and needs
kernel support.

The 'usage=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 <dsterba@suse.com>
master
David Sterba 2015-10-22 10:26:10 +02:00
parent 40db5cd7ff
commit 5a657cad46
1 changed files with 24 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
cmds-balance.c
View File

@ -244,11 +244,30 @@ static int parse_filters(char *filters, struct btrfs_balance_args *args)
"an argument\n");
return 1;
}
if (parse_u64(value, &args->usage) ||
args->usage > 100) {
fprintf(stderr, "Invalid usage argument: %s\n",
value);
return 1;
if (parse_u64(value, &args->usage)) {
if (parse_range_u32(value, &args->usage_min,
&args->usage_max)) {
fprintf(stderr,
"Invalid usage argument: %s\n",
value);
return 1;
}
if (args->usage_max > 100) {
fprintf(stderr,
"Invalid usage argument: %s\n",
value);
}
args->flags &= ~BTRFS_BALANCE_ARGS_USAGE;
args->flags |= BTRFS_BALANCE_ARGS_USAGE_RANGE;
} else {
if (args->usage > 100) {
fprintf(stderr,
"Invalid usage argument: %s\n",
value);
return 1;
}
args->flags &= ~BTRFS_BALANCE_ARGS_USAGE_RANGE;
args->flags |= BTRFS_BALANCE_ARGS_USAGE;
}
args->flags |= BTRFS_BALANCE_ARGS_USAGE;
} else if (!strcmp(this_char, "devid")) {