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xpmem: fix mapping of attachment and segment

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* Mapping attached part of segment is done at attach time instead of
  make time to work with runtimes (e.g. OpenMPI) xpmem_make-ing the
  entire user-space
* Mapping attached part of segment at attach time can be turned off by
  specifying xpmem_remote_on_demand in kernel argument
* Mapping attachment chooses appropriate page-sizes, i.e., largest
  allowed by memory range and segment page boundary

Fixes: a8696d8 "xpmem: Support large page attachment"
Change-Id: I44663865204036520e5f62fe22b9134ee4629f9b
This commit is contained in:
Masamichi Takagi
2020-05-12 13:17:46 +09:00
parent d370e9241f
commit a5fcc91656
43 changed files with 2876 additions and 285 deletions
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13
test/issues/1473/ihk_kmsg_size.patch Normal file
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@@ -0,0 +1,13 @@
diff --git linux/include/ihk/ihk_debug.h linux/include/ihk/ihk_debug.h
index 9b53dd7..305a3a9 100644
--- linux/include/ihk/ihk_debug.h
+++ linux/include/ihk/ihk_debug.h
@@ -8,7 +8,7 @@
#ifndef IHK_DEBUG_H_INCLUDED
#define IHK_DEBUG_H_INCLUDED
-#define IHK_KMSG_SIZE 8192
+#define IHK_KMSG_SIZE (4UL<<20)
#define IHK_KMSG_HIGH_WATER_MARK (IHK_KMSG_SIZE / 2)
#define IHK_KMSG_NOTIFY_DELAY 400 /* Unit is us, 400 us would avoid overloading fwrite of ihkmond */