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authorDavidlohr Bueso <davidlohr@hp.com>2014-01-27 17:07:09 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-27 21:02:40 -0800
commitdaf948c7d1a080041ae19aca07625efec670695a (patch)
treeaf17f8452bcd1e6c709f4875c4a04d95d4b6b62f /include/linux/ipc_namespace.h
parent8dc5cd04f97b5d6cad64df1e7dc5c49110b4d5e3 (diff)
downloadop-kernel-dev-daf948c7d1a080041ae19aca07625efec670695a.zip
op-kernel-dev-daf948c7d1a080041ae19aca07625efec670695a.tar.gz
ipc: delete seq_max field in struct ipc_ids
This field is only used to reset the ids seq number if it exceeds the smaller of INT_MAX/SEQ_MULTIPLIER and USHRT_MAX, and can therefore be moved out of the structure and into its own macro. Since each ipc_namespace contains a table of 3 pointers to struct ipc_ids we can save space in instruction text: text data bss dec hex filename 56232 2348 24 58604 e4ec ipc/built-in.o 56216 2348 24 58588 e4dc ipc/built-in.o-after Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Reviewed-by: Jonathan Gonzalez <jgonzalez@linets.cl> Cc: Aswin Chandramouleeswaran <aswin@hp.com> Cc: Rik van Riel <riel@redhat.com> Acked-by: Manfred Spraul <manfred@colorfullife.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/ipc_namespace.h')
-rw-r--r--include/linux/ipc_namespace.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
index f6c82de..e7831d2 100644
--- a/include/linux/ipc_namespace.h
+++ b/include/linux/ipc_namespace.h
@@ -21,7 +21,6 @@ struct user_namespace;
struct ipc_ids {
int in_use;
unsigned short seq;
- unsigned short seq_max;
struct rw_semaphore rwsem;
struct idr ipcs_idr;
int next_id;
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