mke2fs: If the device size is exactly 16TB treat it as if it had 16TB - 1 block
This allows users who create a 16TB LVM to have mke2fs do (mostly) the
right thing automatcally.
diff --git a/misc/mke2fs.c b/misc/mke2fs.c
index 0f9238e..c5f4da1 100644
--- a/misc/mke2fs.c
+++ b/misc/mke2fs.c
@@ -1442,17 +1442,33 @@
}
if (retval == EFBIG) {
+ blk64_t big_dev_size;
+
+ if (blocksize < 4096) {
+ fs_param.s_log_block_size = 2;
+ blocksize = 4096;
+ }
+ retval = ext2fs_get_device_size2(device_name,
+ EXT2_BLOCK_SIZE(&fs_param), &big_dev_size);
+ if (retval)
+ goto get_size_failure;
+ if (big_dev_size == (1ULL << 32)) {
+ dev_size = (blk_t) (big_dev_size - 1);
+ goto got_size;
+ }
fprintf(stderr, _("%s: Size of device %s too big "
"to be expressed in 32 bits\n\t"
"using a blocksize of %d.\n"),
program_name, device_name, EXT2_BLOCK_SIZE(&fs_param));
exit(1);
}
+get_size_failure:
if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
com_err(program_name, retval,
_("while trying to determine filesystem size"));
exit(1);
}
+got_size:
if (!fs_param.s_blocks_count) {
if (retval == EXT2_ET_UNIMPLEMENTED) {
com_err(program_name, 0,