Max readahead size has been limited since commit: commit 6d2be915e589b58cb11418cbe1f22ff90732b6ac Author: Raghavendra K T <[email protected]> Date: Thu Apr 3 14:48:23 2014 -0700 mm/readahead.c: fix readahead failure for memoryless NUMA nodes and limit readahead pages
Update testcase to read ahead in 2M chunks, this change is compatible with older kernels. Signed-off-by: Jan Stancek <[email protected]> --- testcases/kernel/syscalls/readahead/readahead02.c | 9 +++++++-- 1 files changed, 7 insertions(+), 2 deletions(-) diff --git a/testcases/kernel/syscalls/readahead/readahead02.c b/testcases/kernel/syscalls/readahead/readahead02.c index 8940821..5b1524e 100644 --- a/testcases/kernel/syscalls/readahead/readahead02.c +++ b/testcases/kernel/syscalls/readahead/readahead02.c @@ -213,8 +213,13 @@ static void read_testfile(int do_readahead, const char *fname, size_t fsize, tst_brkm(TBROK | TERRNO, cleanup, "Failed to open %s", fname); if (do_readahead) { - TEST(ltp_syscall(__NR_readahead, fd, (off64_t) 0, - (size_t) fsize)); + /* read ahead in chunks, 2MB is maximum since 3.15-rc1 */ + for (i = 0; i < fsize; i += 2*1024*1024) { + TEST(ltp_syscall(__NR_readahead, fd, + (off64_t) i, 2*1024*1024)); + if (TEST_RETURN != 0) + break; + } check_ret(0); *cached = get_cached_size(); -- 1.7.1 ------------------------------------------------------------------------------ Start Your Social Network Today - Download eXo Platform Build your Enterprise Intranet with eXo Platform Software Java Based Open Source Intranet - Social, Extensible, Cloud Ready Get Started Now And Turn Your Intranet Into A Collaboration Platform http://p.sf.net/sfu/ExoPlatform _______________________________________________ Ltp-list mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ltp-list
