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Diffstat (limited to 'Documentation/btrfs-check.asciidoc')
| -rw-r--r-- | Documentation/btrfs-check.asciidoc | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/btrfs-check.asciidoc b/Documentation/btrfs-check.asciidoc index a32e1c7e..5ef414eb 100644 --- a/Documentation/btrfs-check.asciidoc +++ b/Documentation/btrfs-check.asciidoc @@ -78,6 +78,16 @@ respective superblock offset is within the device size This can be used to use a different starting point if some of the primary superblock is damaged. +--clear-space-cache v1|v2:: +completely wipe all free space cache of given type + +NOTE: Only v1 free space cache supported is implemented. ++ +Kernel mount option 'clear_cache' is only designed to rebuild free space cache +which is modified during the lifetime of that mount option. It doesn't rebuild +all free space cache, nor clear them out. + + DANGEROUS OPTIONS ----------------- |