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scoutfs: report sm metadata blocks in statfs

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The conversion of the super block metadata block counters to units of
large metadata blocks forgot to scale back to the small block size when
filling out the block count fields in the statfs rpc.   This resulted in
the free and total metadata use being off by the factor of large to
small block size (default of ~16x at the moment).

Signed-off-by: Zach Brown <zab@versity.com>
This commit is contained in:
Zach Brown
2020-07-03 16:17:47 -07:00
committed by Zach Brown
parent 42e7fbb4f7
commit ab271f4682
1 changed files with 7 additions and 2 deletions
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9
kmod/src/server.c
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@@ -849,6 +849,11 @@ out:
&last_seq, sizeof(last_seq));
}
static inline __le64 le64_lg_to_sm(__le64 lg)
{
return cpu_to_le64(le64_to_cpu(lg) << SCOUTFS_BLOCK_SM_LG_SHIFT);
}
/*
* Sample the super stats that the client wants for statfs by serializing
* with each component.
@@ -872,10 +877,10 @@ static int server_statfs(struct super_block *sb,
spin_unlock(&sbi->next_ino_lock);
down_read(&server->alloc_rwsem);
nstatfs.total_blocks = super->total_meta_blocks;
nstatfs.total_blocks = le64_lg_to_sm(super->total_meta_blocks);
le64_add_cpu(&nstatfs.total_blocks,
le64_to_cpu(super->total_data_blocks));
nstatfs.bfree = super->free_meta_blocks;
nstatfs.bfree = le64_lg_to_sm(super->free_meta_blocks);
le64_add_cpu(&nstatfs.bfree,
le64_to_cpu(super->free_data_blocks));
up_read(&server->alloc_rwsem);