src/patches/suse-2.6.27.25/patches.suse/shmall-bigger

   1 From: Chris Mason <mason@suse.com>
   2 Subject: increase defaults for shmmall, shmmax, msgmax and msgmnb
   3 References: 146656
   4
   5 The defaults are too small for most users.
   6
   7 Acked-by: Jeff Mahoney <jeffm@suse.com>
   8
   9 ---
  10  include/linux/msg.h |    4 ++--
  11  include/linux/sem.h |    2 +-
  12  include/linux/shm.h |    2 +-
  13  3 files changed, 4 insertions(+), 4 deletions(-)
  14
  15 --- a/include/linux/msg.h
  16 +++ b/include/linux/msg.h
  17 @@ -60,8 +60,8 @@ struct msginfo {
  18  #define MSG_MEM_SCALE 32
  19
  20  #define MSGMNI    16   /* <= IPCMNI */     /* max # of msg queue identifiers */
  21 -#define MSGMAX  8192   /* <= INT_MAX */   /* max size of message (bytes) */
  22 -#define MSGMNB 16384   /* <= INT_MAX */   /* default max size of a message queue */
  23 +#define MSGMAX  65536   /* <= INT_MAX */   /* max size of message (bytes) */
  24 +#define MSGMNB 65536   /* <= INT_MAX */   /* default max size of a message queue */
  25
  26  /* unused */
  27  #define MSGPOOL (MSGMNI * MSGMNB / 1024) /* size in kbytes of message pool */
  28 --- a/include/linux/sem.h
  29 +++ b/include/linux/sem.h
  30 @@ -63,7 +63,7 @@ struct  seminfo {
  31         int semaem;
  32  };
  33
  34 -#define SEMMNI  128             /* <= IPCMNI  max # of semaphore identifiers */
  35 +#define SEMMNI  1024            /* <= IPCMNI  max # of semaphore identifiers */
  36  #define SEMMSL  250             /* <= 8 000 max num of semaphores per id */
  37  #define SEMMNS  (SEMMNI*SEMMSL) /* <= INT_MAX max # of semaphores in system */
  38  #define SEMOPM  32             /* <= 1 000 max num of ops per semop call */
  39 --- a/include/linux/shm.h
  40 +++ b/include/linux/shm.h
  41 @@ -14,7 +14,7 @@
  42   * be increased by sysctl
  43   */
  44
  45 -#define SHMMAX 0x2000000                /* max shared seg size (bytes) */
  46 +#define SHMMAX ULONG_MAX                /* max shared seg size (bytes) */
  47  #define SHMMIN 1                        /* min shared seg size (bytes) */
  48  #define SHMMNI 4096                     /* max num of segs system wide */
  49  #ifdef __KERNEL__