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Btrfs-progs: don't output baffling message when checking a fresh fs

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As we know,  a new fs doesn't have space cache, so we set the cache generation
of the super block to be -1ULL, it is not equal to the fs generation. But the
check program didn't consider this case, and output the following message

  cache and super generation don't match, space cache will be invalidated

directly, it would be baffling the users. So we should avoid outputing such
message. This patch fixes this problem.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
Miao Xie 2013-10-25 17:30:45 +08:00 committed by Chris Mason
parent 1f5e3b2825
commit b4f4473e8a
1 changed files with 2 additions and 1 deletions
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cmds-check.c
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@ -3367,7 +3367,8 @@ static int check_space_cache(struct btrfs_root *root)
int ret;
int error = 0;
if (btrfs_super_generation(root->fs_info->super_copy) !=
if (btrfs_super_cache_generation(root->fs_info->super_copy) != -1ULL &&
btrfs_super_generation(root->fs_info->super_copy) !=
btrfs_super_cache_generation(root->fs_info->super_copy)) {
printf("cache and super generation don't match, space cache "
"will be invalidated\n");