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btrfs-progs
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btrfs-progs: defrag, check target extent earlier 

Print a warning if the target extent size (option -t) is larger than 4G.

Signed-off-by: David Sterba <dsterba@suse.cz>
This commit is contained in:
David Sterba 2015-06-25 19:36:06 +02:00
parent 96cfbbf0ea
commit dedb1ebeee
1 changed files with 6 additions and 1 deletions
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7
cmds-filesystem.c
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@ -1170,6 +1170,11 @@ static int cmd_defrag(int argc, char **argv)
break;
case 't':
thresh = parse_size(optarg);
if (thresh > (u32)-1) {
fprintf(stderr,
"WARNING: target extent size %llu too big, trimmed to %u",
thresh, (u32)-1);
}
defrag_global_fancy_ioctl = 1;
break;
case 'r':
@ -1186,7 +1191,7 @@ static int cmd_defrag(int argc, char **argv)
memset(&defrag_global_range, 0, sizeof(range));
defrag_global_range.start = start;
defrag_global_range.len = len;
defrag_global_range.extent_thresh = thresh > (u32)-1 ? (u32)-1 : (u32)thresh;
defrag_global_range.extent_thresh = (u32)thresh;
if (compress_type) {
defrag_global_range.flags |= BTRFS_DEFRAG_RANGE_COMPRESS;
defrag_global_range.compress_type = compress_type;