diff options
| -rw-r--r-- | arch/sparc/kernel/sys_sparc_64.c | 2 | ||||
| -rw-r--r-- | arch/xtensa/kernel/syscall.c | 2 | ||||
| -rw-r--r-- | include/linux/shm.h | 6 | ||||
| -rw-r--r-- | ipc/compat.c | 8 | ||||
| -rw-r--r-- | ipc/shm.c | 9 | ||||
| -rw-r--r-- | ipc/syscall.c | 2 |
6 files changed, 18 insertions, 11 deletions
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c index c38e5aaae56..0dc1f578608 100644 --- a/arch/sparc/kernel/sys_sparc_64.c +++ b/arch/sparc/kernel/sys_sparc_64.c @@ -470,7 +470,7 @@ SYSCALL_DEFINE6(sparc_ipc, unsigned int, call, int, first, unsigned long, second switch (call) { case SHMAT: { ulong raddr; - err = do_shmat(first, ptr, (int)second, &raddr); + err = do_shmat(first, ptr, (int)second, &raddr, SHMLBA); if (!err) { if (put_user(raddr, (ulong __user *) third)) diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c index 816e6d0d686..05b3f093d5d 100644 --- a/arch/xtensa/kernel/syscall.c +++ b/arch/xtensa/kernel/syscall.c @@ -44,7 +44,7 @@ asmlinkage long xtensa_shmat(int shmid, char __user *shmaddr, int shmflg) unsigned long ret; long err; - err = do_shmat(shmid, shmaddr, shmflg, &ret); + err = do_shmat(shmid, shmaddr, shmflg, &ret, SHMLBA); if (err) return err; return (long)ret; diff --git a/include/linux/shm.h b/include/linux/shm.h index 92808b86703..edd086883cc 100644 --- a/include/linux/shm.h +++ b/include/linux/shm.h @@ -107,12 +107,14 @@ struct shmid_kernel /* private to the kernel */ #define SHM_NORESERVE 010000 /* don't check for reservations */ #ifdef CONFIG_SYSVIPC -long do_shmat(int shmid, char __user *shmaddr, int shmflg, unsigned long *addr); +long do_shmat(int shmid, char __user *shmaddr, int shmflg, unsigned long *addr, + unsigned long shmlba); extern int is_file_shm_hugepages(struct file *file); extern void exit_shm(struct task_struct *task); #else static inline long do_shmat(int shmid, char __user *shmaddr, - int shmflg, unsigned long *addr) + int shmflg, unsigned long *addr, + unsigned long shmlba) { return -ENOSYS; } diff --git a/ipc/compat.c b/ipc/compat.c index a6df704f521..53cebdf80e3 100644 --- a/ipc/compat.c +++ b/ipc/compat.c @@ -514,6 +514,10 @@ long compat_sys_msgctl(int first, int second, void __user *uptr) return err; } +#ifndef COMPAT_SHMLBA +#define COMPAT_SHMLBA SHMLBA +#endif + #ifdef CONFIG_ARCH_WANT_OLD_COMPAT_IPC long compat_sys_shmat(int first, int second, compat_uptr_t third, int version, void __user *uptr) @@ -524,7 +528,7 @@ long compat_sys_shmat(int first, int second, compat_uptr_t third, int version, if (version == 1) return -EINVAL; - err = do_shmat(first, uptr, second, &raddr); + err = do_shmat(first, uptr, second, &raddr, COMPAT_SHMLBA); if (err < 0) return err; uaddr = compat_ptr(third); @@ -536,7 +540,7 @@ long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg) unsigned long ret; long err; - err = do_shmat(shmid, compat_ptr(shmaddr), shmflg, &ret); + err = do_shmat(shmid, compat_ptr(shmaddr), shmflg, &ret, COMPAT_SHMLBA); if (err) return err; force_successful_syscall_return(); diff --git a/ipc/shm.c b/ipc/shm.c index 41c1285d697..00faa05cf72 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -953,7 +953,8 @@ out: * "raddr" thing points to kernel space, and there has to be a wrapper around * this. */ -long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr) +long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr, + unsigned long shmlba) { struct shmid_kernel *shp; unsigned long addr; @@ -973,9 +974,9 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr) if (shmid < 0) goto out; else if ((addr = (ulong)shmaddr)) { - if (addr & (SHMLBA-1)) { + if (addr & (shmlba - 1)) { if (shmflg & SHM_RND) - addr &= ~(SHMLBA-1); /* round down */ + addr &= ~(shmlba - 1); /* round down */ else #ifndef __ARCH_FORCE_SHMLBA if (addr & ~PAGE_MASK) @@ -1107,7 +1108,7 @@ SYSCALL_DEFINE3(shmat, int, shmid, char __user *, shmaddr, int, shmflg) unsigned long ret; long err; - err = do_shmat(shmid, shmaddr, shmflg, &ret); + err = do_shmat(shmid, shmaddr, shmflg, &ret, SHMLBA); if (err) return err; force_successful_syscall_return(); diff --git a/ipc/syscall.c b/ipc/syscall.c index 1d6f53f6b56..0d1e32ce048 100644 --- a/ipc/syscall.c +++ b/ipc/syscall.c @@ -73,7 +73,7 @@ SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, unsigned long, second, default: { unsigned long raddr; ret = do_shmat(first, (char __user *)ptr, - second, &raddr); + second, &raddr, SHMLBA); if (ret) return ret; return put_user(raddr, (unsigned long __user *) third); |