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Pierre Peiffer ed2ddbf88c IPC: make struct ipc_ids static in ipc_namespace ... Each ipc_namespace contains a table of 3 pointers to struct ipc_ids (3 for msg, sem and shm, structure used to store all ipcs) These 'struct ipc_ids' are dynamically allocated for each icp_namespace as the ipc_namespace itself (for the init namespace, they are initialized with pointers to static variables instead) It is so for historical reason: in fact, before the use of idr to store the ipcs, the ipcs were stored in tables of variable length, depending of the maximum number of ipc allowed. Now, these 'struct ipc_ids' have a fixed size. As they are allocated in any cases for each new ipc_namespace, there is no gain of memory in having them allocated separately of the struct ipc_namespace. This patch proposes to make this table static in the struct ipc_namespace. Thus, we can allocate all in once and get rid of all the code needed to allocate and free these ipc_ids separately. Signed-off-by: Pierre Peiffer <pierre.peiffer@bull.net> Acked-by: Cedric Le Goater <clg@fr.ibm.com> Cc: Pavel Emelyanov <xemul@openvz.org> Cc: Nadia Derbey <Nadia.Derbey@bull.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		17 years ago
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Makefile	…
compat.c	…
compat_mq.c	…
ipc_sysctl.c	…
mqueue.c	…
msg.c	IPC: make struct ipc_ids static in ipc_namespace	17 years ago
msgutil.c	…
namespace.c	IPC: make struct ipc_ids static in ipc_namespace	17 years ago
sem.c	IPC: make struct ipc_ids static in ipc_namespace	17 years ago
shm.c	IPC: make struct ipc_ids static in ipc_namespace	17 years ago
util.c	IPC: make struct ipc_ids static in ipc_namespace	17 years ago
util.h	IPC: make struct ipc_ids static in ipc_namespace	17 years ago