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btrfs-progs: fix space_cache generation again when free-space-tree is enabled

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In commit a138daac17 ("btrfs-progs: mkfs: set super_cache_generation
to 0 if we're using free space tree") the space cache (v1) generation
was reset to 0 to let kernel know it's not used when the free-space-tree
is enabled.

This got broken again in 5.14 when the free space tree code got
refactored in 4b6cf2a3eb ("btrfs-progs: mkfs: generate free space tree
at make_btrfs() time").

Reset the space cache generation to 0.

Issue: #414
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2021-11-04 18:43:05 +01:00
parent e9a7efb1b6
commit c0c307c313
1 changed files with 1 additions and 0 deletions
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mkfs/common.c
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@ -308,6 +308,7 @@ int make_btrfs(int fd, struct btrfs_mkfs_config *cfg)
BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE_VALID;
btrfs_set_super_compat_ro_flags(&super, ro_flags);
btrfs_set_super_cache_generation(&super, 0);
}
if (cfg->label)
__strncpy_null(super.label, cfg->label, BTRFS_LABEL_SIZE - 1);