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Avoid truncating untracked file tails during partial fix

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This commit is contained in:
Andrea Mazzoleni 2026-09-28 11:37:58 +02:00
parent 7decc78c97
commit bff4bb237b
1 changed files with 6 additions and 3 deletions
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9
cmdline/check.c
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@ -2175,12 +2175,15 @@ static int state_check_process(struct snapraid_state* state, int fix, struct sna
* Missing data inside a short file is handled block by block by normal
* recovery writes, which extend the file as needed.
*
* Extra data past the expected end is different: it has no content block and
* therefore no later block recovery can remove it. Fix must truncate that
* untracked tail explicitly.
* Extra data past the expected end has no content block and therefore requires
* a file-level truncate during a full fix.
*
* A partial -S/-B fix operates only at block level, so it must leave any
* untracked tail untouched, even if the file is larger than expected.
*/
if (!file_flag_has(file, FILE_IS_OPENED)
&& !file_flag_has(file, FILE_IS_EXCLUDED)
&& !partial
&& !(state->opt.syncedonly && file_flag_has(file, FILE_IS_UNSYNCED))
&& handle[j].st.st_size > file->size
) {