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the following warning: fs/jbd2/journal.c: In function ‘jbd2_seq_info_show’: fs/jbd2/journal.c:850: warning: format ‘%lu’ expects type ‘long unsigned int’, but argument 3 has type ‘uint32_t’ is caused by wrong usage of do_div that modifies the dividend in-place and returns the quotient. So not only would an incorrect value be displayed, but s->journal->j_average_commit_time would also be changed to a wrong value! Fix it by using div_u64 instead. Signed-off-by: Simon Holm Thøgersen <odie@cs.aau.dk> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>