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2f529e73d7
recompress_store() parses the type= parameter with three if statements checking for "idle", "huge", and "huge_idle". An unrecognized value silently falls through with mode left at 0, causing the recompression pass to run with no slot filter — processing all slots instead of the intended subset. Add a !mode check after the type parsing block to return -EINVAL for unrecognized values, consistent with the function's other parameter validation. Link: https://lore.kernel.org/20260407153027.42425-1-astellman@stellman-greene.com Signed-off-by: Andrew Stellman <astellman@stellman-greene.com> Suggested-by: Sergey Senozhatsky <senozhatsky@chromium.org> Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Minchan Kim <minchan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>