The patch titled
ipc: HARD_MSGMAX should be higher not lower on 64bit
has been added to the -mm tree. Its filename is
ipc-hard_msgmax-should-be-higher-not-lower-on-64bit.patch
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Subject: ipc: HARD_MSGMAX should be higher not lower on 64bit
From: Amerigo Wang <amwang@xxxxxxxxxx>
We have HARD_MSGMAX lower on 64bit than on 32bit, since usually 64bit
machines have more memory than 32bit machines.
Making it higher on 64bit seems reasonable, and keep the original number
on 32bit.
Acked-by: Serge E. Hallyn <serue@xxxxxxxxxx>
Cc: Cedric Le Goater <clg@xxxxxxxxxx>
Signed-off-by: WANG Cong <amwang@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/ipc_namespace.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN include/linux/ipc_namespace.h~ipc-hard_msgmax-should-be-higher-not-lower-on-64bit include/linux/ipc_namespace.h
--- a/include/linux/ipc_namespace.h~ipc-hard_msgmax-should-be-higher-not-lower-on-64bit
+++ a/include/linux/ipc_namespace.h
@@ -87,7 +87,7 @@ extern int mq_init_ns(struct ipc_namespa
/* default values */
#define DFLT_QUEUESMAX 256 /* max number of message queues */
#define DFLT_MSGMAX 10 /* max number of messages in each queue */
-#define HARD_MSGMAX (131072/sizeof(void *))
+#define HARD_MSGMAX (32768*sizeof(void *)/4)
#define DFLT_MSGSIZEMAX 8192 /* max message size */
#else
static inline int mq_init_ns(struct ipc_namespace *ns) { return 0; }
_
Patches currently in -mm which might be from amwang@xxxxxxxxxx are
origin.patch
hfs-fix-a-potential-buffer-overflow.patch
linux-next.patch
xtensa-use-generic-sys_pipe.patch
sysctl_max_map_count-should-be-non-negative.patch
rwsem-spinlock-remove-useless-function-exports.patch
rwsem-fix-rwsem_is_locked-bugs.patch
rwsem-fix-rwsem_is_locked-bugs-fix.patch
kallsyms-remove-deprecated-print_fn_descriptor_symbol.patch
ipc-remove-unreachable-code-in-semc.patch
ipc-remove-unreachable-code-in-semc-fix.patch
ipc-hard_msgmax-should-be-higher-not-lower-on-64bit.patch
kexec-premit-reduction-of-the-reserved-memory-size.patch
kexec-premit-reduction-of-the-reserved-memory-size-fix.patch
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