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@@ -79,6 +79,7 @@ struct seminfo {
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#ifdef __KERNEL__
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#include <asm/atomic.h>
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#include <linux/rcupdate.h>
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+#include <linux/cache.h>
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struct task_struct;
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@@ -91,7 +92,8 @@ struct sem {
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/* One sem_array data structure for each set of semaphores in the system. */
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struct sem_array {
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- struct kern_ipc_perm sem_perm; /* permissions .. see ipc.h */
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+ struct kern_ipc_perm ____cacheline_aligned_in_smp
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+ sem_perm; /* permissions .. see ipc.h */
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time_t sem_otime; /* last semop time */
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time_t sem_ctime; /* last change time */
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struct sem *sem_base; /* ptr to first semaphore in array */
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