This has been bothering me for some time. Why does btrfs need to have a
disk greater then 256M? I could see a much smaller limit, say 16M but
why so much? The file system itself does not need that much space for
its own use.
Thanks,
Lee
Shen Feng wrote:
According to btrfs_prepare_device, btrfs file sysstem size
should be bigger then 256m.
If mkfs.btrfs specifies the file system size samaller then
that, mkfs.btrfs should report error.
Signed-off-by: Shen Feng <shen@xxxxxxxxxxxxxx>
---
mkfs.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/mkfs.c b/mkfs.c
index be93aaa..447e8d7 100644
--- a/mkfs.c
+++ b/mkfs.c
@@ -377,6 +377,10 @@ int main(int ac, char **av)
break;
case 'b':
block_count = parse_size(optarg);
+ if (block_count < 256*1024*1024) {
+ fprintf(stderr, "File system size is too small\n");
+ exit(1);
+ }
zero_end = 0;
break;
default:
--
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