Subject: + ipccompat-remove-sc_semopm-macro.patch added to -mm tree
To: davidlohr@xxxxxx,manfred@xxxxxxxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Tue, 18 Feb 2014 13:39:37 -0800
The patch titled
Subject: ipc/compat.c: remove sc_semopm macro
has been added to the -mm tree. Its filename is
ipccompat-remove-sc_semopm-macro.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/ipccompat-remove-sc_semopm-macro.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/ipccompat-remove-sc_semopm-macro.patch
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From: Davidlohr Bueso <davidlohr@xxxxxx>
Subject: ipc/compat.c: remove sc_semopm macro
This macro appears to have been introduced back in the 2.5 era for
semtimedop32 backward compatibility on ia32:
https://lkml.org/lkml/2003/4/28/78
Nowadays, this syscall in compat just defaults back to the code found in
sem.c, so it is no longer used and can thus be removed:
long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
unsigned nsops, const struct compat_timespec __user *timeout)
{
struct timespec __user *ts64;
if (compat_convert_timespec(&ts64, timeout))
return -EFAULT;
return sys_semtimedop(semid, tsems, nsops, ts64);
}
Furthermore, there are no users in compat.c. After this change, kernel
builds just fine with both CONFIG_SYSVIPC_COMPAT and CONFIG_SYSVIPC.
Signed-off-by: Davidlohr Bueso <davidlohr@xxxxxx>
Cc: Manfred Spraul <manfred@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
ipc/compat.c | 3 ---
1 file changed, 3 deletions(-)
diff -puN ipc/compat.c~ipccompat-remove-sc_semopm-macro ipc/compat.c
--- a/ipc/compat.c~ipccompat-remove-sc_semopm-macro
+++ a/ipc/compat.c
@@ -113,9 +113,6 @@ struct compat_shm_info {
compat_ulong_t swap_attempts, swap_successes;
};
-extern int sem_ctls[];
-#define sc_semopm (sem_ctls[2])
-
static inline int compat_ipc_parse_version(int *cmd)
{
#ifdef CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION
_
Patches currently in -mm which might be from davidlohr@xxxxxx are
ipcmqueue-remove-limits-for-the-amount-of-system-wide-queues.patch
mm-hugetlb-unify-region-structure-handling.patch
mm-hugetlb-improve-cleanup-resv_map-parameters.patch
mm-hugetlb-fix-race-in-region-tracking.patch
mm-hugetlb-remove-resv_map_put.patch
mm-hugetlb-use-vma_resv_map-map-types.patch
mm-hugetlb-improve-page-fault-scalability.patch
mm-hugetlb-improve-page-fault-scalability-fix.patch
mm-hugetlb-mark-some-bootstrap-functions-as-__init.patch
ipccompat-remove-sc_semopm-macro.patch
ipc-use-device_initcall.patch
linux-next.patch
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