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List:       linux-parisc
Subject:    [PATCH] parisc: Drop alloc_hugepages and free_hugepages syscalls
From:       Helge Deller <deller () gmx ! de>
Date:       2016-03-20 11:20:31
Message-ID: 20160320112031.GA3504 () ls3530 ! box
[Download RAW message or body]

Those syscalls were never implemented and don't exists in other arches
either.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/uapi/asm/unistd.h \
b/arch/parisc/include/uapi/asm/unistd.h index b75039f..fdb3c4e 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -235,8 +235,8 @@
 #define __NR_io_getevents       (__NR_Linux + 217)
 #define __NR_io_submit          (__NR_Linux + 218)
 #define __NR_io_cancel          (__NR_Linux + 219)
-#define __NR_alloc_hugepages    (__NR_Linux + 220)
-#define __NR_free_hugepages     (__NR_Linux + 221)
+#define __NR_alloc_hugepages    (__NR_Linux + 220) /* not used */
+#define __NR_free_hugepages     (__NR_Linux + 221) /* not used */
 #define __NR_exit_group         (__NR_Linux + 222)
 #define __NR_lookup_dcookie     (__NR_Linux + 223)
 #define __NR_epoll_create       (__NR_Linux + 224)
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 5aba01a..0a393a0 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -368,16 +368,6 @@ asmlinkage long parisc_fallocate(int fd, int mode, u32 offhi, \
u32 offlo,  ((u64)lenhi << 32) | lenlo);
 }
 
-asmlinkage unsigned long sys_alloc_hugepages(int key, unsigned long addr, unsigned \
                long len, int prot, int flag)
-{
-	return -ENOMEM;
-}
-
-asmlinkage int sys_free_hugepages(unsigned long addr)
-{
-	return -EINVAL;
-}
-
 long parisc_personality(unsigned long personality)
 {
 	long err;
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 585d50f..c2c9093 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -315,8 +315,8 @@
 	ENTRY_COMP(io_getevents)
 	ENTRY_COMP(io_submit)
 	ENTRY_SAME(io_cancel)
-	ENTRY_SAME(alloc_hugepages)	/* 220 */
-	ENTRY_SAME(free_hugepages)
+	ENTRY_SAME(ni_syscall)		/* 220: was alloc_hugepages */
+	ENTRY_SAME(ni_syscall)		/* was free_hugepages */
 	ENTRY_SAME(exit_group)
 	ENTRY_COMP(lookup_dcookie)
 	ENTRY_SAME(epoll_create)
--
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