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ipc: store ipcs into IDRs

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This patch introduces ipcs storage into IDRs. The main changes are:
  . This ipc_ids structure is changed: the entries array is changed into a
    root idr structure.
  . The grow_ary() routine is removed: it is not needed anymore when adding
    an ipc structure, since we are now using the IDR facility.
  . The ipc_rmid() routine interface is changed:
       . there is no need for this routine to return the pointer passed in as
         argument: it is now declared as a void
       . since the id is now part of the kern_ipc_perm structure, no need to
         have it as an argument to the routine

Signed-off-by: Nadia Derbey <Nadia.Derbey@bull.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Nadia Derbey 2007-10-18 23:40:48 -07:00 • committed by Linus Torvalds
parent d2b20b1154
commit 7ca7e564e0
9 changed files with 332 additions and 314 deletions
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1
include/linux/ipc.h
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@ -89,6 +89,7 @@ struct kern_ipc_perm
{
spinlock_t lock;
int deleted;
int id;
key_t key;
uid_t uid;
gid_t gid;