Lines Matching defs:readahead
444 * Splice_read and readahead add shmem/tmpfs pages into the page cache
940 * read(R) => miss => readahead(R...B) => media error => frustrating retries
942 * readahead(R+1...B+1) => bang => read(R+2) => read(R+3) =>
943 * readahead(R+3...B+2) => bang => read(R+3) => read(R+4) =>
944 * readahead(R+4...B+3) => bang => read(R+4) => read(R+5) => ......
946 * It is going insane. Fix it by quickly scaling down the readahead size.
1373 SYSCALL_DEFINE(readahead)(int fd, loff_t offset, size_t count)
1436 * Synchronous readahead happens when we don't even find
1481 * Asynchronous readahead happens when we find the page and PG_readahead,
1482 * so we want to possibly extend the readahead further..
1536 * We found the page, so try async readahead before
2174 * cached by non-direct readahead, or faulted in by get_user_pages()