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f2fs: fix to do sanity check on node footer in __write_node_folio()

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Add node footer sanity check during node folio's writeback, if sanity
check fails, let's shutdown filesystem to avoid looping to redirty
and writeback in .writepages.

Signed-off-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
This commit is contained in:
Chao Yu authored and Jaegeuk Kim committed 2026-01-17 00:00:34 +00:00
1 parent f7b929eda1
commit 0a736109c9
1 file changed
+5 -1
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fs/f2fs/node.c
+5 -1
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@@ -1763,7 +1763,11 @@ static bool __write_node_folio(struct folio *folio, bool atomic, bool *submitted
/* get old block addr of this node page */
nid = nid_of_node(folio);
f2fs_bug_on(sbi, folio->index != nid);
if (sanity_check_node_footer(sbi, folio, nid, NODE_TYPE_REGULAR)) {
f2fs_handle_critical_error(sbi, STOP_CP_REASON_CORRUPTED_NID);
goto redirty_out;
}
if (f2fs_get_node_info(sbi, nid, &ni, !do_balance))
goto redirty_out;