[LTP] readahead02: change the test pass to 2M

[Madan <madanvs@linux.vnet.ibm.com>]

Max readahead size has been limited since commit:
   commit 6d2be915e589b58cb11418cbe1f22ff90732b6ac
   Author: Raghavendra K T<raghavendra.kt@linux.vnet.ibm.com>
   Date:   Thu Apr 3 14:48:23 2014 -0700
     mm/readahead.c: fix readahead failure for memoryless NUMA nodes
                     and limit readahead pages

Updating the change in the readahead behaviour of max 2M cache.
http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/?id=c7252018cef0da5db35cd03aa7b6c44ab597a0b7

Signed-off-by:Hoisaleshwara Madan V S <hoisalvs@in.ibm.com>

Patch :

diff --git a/testcases/kernel/syscalls/readahead/readahead02.c b/testcases/kernel/syscalls/readahe
index 66158f0..dc6a191 100644
--- a/testcases/kernel/syscalls/readahead/readahead02.c
+++ b/testcases/kernel/syscalls/readahead/readahead02.c
@@ -306,13 +306,14 @@ static void test_readahead(void)
         tst_resm(TINFO, "cache can hold at least: %ld kB", cached_max);
         tst_resm(TINFO, "read_testfile(0) used cache: %ld kB", cached);
         tst_resm(TINFO, "read_testfile(1) used cache: %ld kB", cached_ra);
-
-       if (cached_max * 1024 >= testfile_size) {
+
+        /* readahead will cache max of 2 M */
+       if (cached_max * 1024 >= 2 * 1024) {
                 /*
                  * if cache can hold ~testfile_size then cache increase
                  * for readahead should be at least testfile_size/2
                  */
-               if (cached_ra * 1024 > testfile_size / 2)
+               if (cached_ra * 1024 > 2 * 1024)
                         tst_resm(TPASS, "using cache as expected");
                 else
                         tst_resm(TWARN, "using less cache than expected");



------------------------------------------------------------------------------
Is your legacy SCM system holding you back? Join Perforce May 7 to find out:
&#149; 3 signs your SCM is hindering your productivity
&#149; Requirements for releasing software faster
&#149; Expert tips and advice for migrating your SCM now
http://p.sf.net/sfu/perforce
_______________________________________________
Ltp-list mailing list
Ltp-list@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/ltp-list