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btrfs-progs: ftw_add_entry_size: Round up file size to sectorsize

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ftw_add_entry_size() assumes 4k as the block size of the underlying
filesystem and hence the file sizes computed is incorrect for non-4k
sectorsized filesystems. Fix this by rounding up file sizes to
sectorsize.

Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Chandan Rajendra 2015-12-15 15:32:00 +05:30 committed by David Sterba
parent 5a657cad46
commit f0eae29843
1 changed files with 4 additions and 4 deletions
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8
mkfs.c
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@ -1031,16 +1031,15 @@ out:
* This ignores symlinks with unreadable targets and subdirs that can't
* be read. It's a best-effort to give a rough estimate of the size of
* a subdir. It doesn't guarantee that prepopulating btrfs from this
* tree won't still run out of space.
*
* The rounding up to 4096 is questionable. Previous code used du -B 4096.
* tree won't still run out of space.
*/
static u64 global_total_size;
static u64 fs_block_size;
static int ftw_add_entry_size(const char *fpath, const struct stat *st,
int type)
{
if (type == FTW_F || type == FTW_D)
global_total_size += round_up(st->st_size, 4096);
global_total_size += round_up(st->st_size, fs_block_size);
return 0;
}
@ -1060,6 +1059,7 @@ static u64 size_sourcedir(char *dir_name, u64 sectorsize,
allocated_meta_size / default_chunk_size;
global_total_size = 0;
fs_block_size = sectorsize;
ret = ftw(dir_name, ftw_add_entry_size, 10);
dir_size = global_total_size;
if (ret < 0) {