errseq_check
if (errseq_check(&mapping->wb_err, READ_ONCE(sbi->s_bdev_wb_err))) {
if (errseq_check(&upper_sb->s_wb_err, ofs->errseq)) {
return errseq_check(&mnt->mnt_sb->s_wb_err, ofs->errseq);
int errseq_check(errseq_t *eseq, errseq_t since);
return errseq_check(&mapping->wb_err,
return errseq_check(&mapping->wb_err, since);
EXPORT_SYMBOL(errseq_check);
if (errseq_check(&mapping->wb_err, old)) {