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From:   Breno Leitao <leitao@debian.org>
To:     linuxppc-dev@lists.ozlabs.org
Cc:     linux-kernel@vger.kernel.org, Breno Leitao <leitao@debian.org>,
        David Howells <dhowells@redhat.com>
Subject: [PATCH] powerpc: Wire up file system mount new syscalls
Date:   Fri, 27 Jul 2018 10:55:02 -0300
Message-Id: <1532699702-15515-1-git-send-email-leitao@debian.org>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Wire up the new file system mount syscalls for Powerpc. The new syscall being
contemplated by this patch are those already available in the linux-next tree:
open_tree(), move_mount(), fsopen(), fsmount(), fspick() and fsinfo().

These system calls were tested with David Howells test case[1], as some others I
wrote[2]. For testing purpose, I also made usage of the new, but yet not
integrated, fsconfig() syscall.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/commit/?h=mount-context&id=2bae6fd63259c5244bd9de1b46cca706c4808438
[2] https://github.com/leitao/mcontext/

CC: David Howells <dhowells@redhat.com>
Signed-off-by: Breno Leitao <leitao@debian.org>
---
 arch/powerpc/include/asm/systbl.h      | 6 ++++++
 arch/powerpc/include/asm/unistd.h      | 2 +-
 arch/powerpc/include/uapi/asm/unistd.h | 6 ++++++
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index 01b5171ea189..68d8dc0f8338 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -394,3 +394,9 @@ SYSCALL(pkey_free)
 SYSCALL(pkey_mprotect)
 SYSCALL(rseq)
 COMPAT_SYS(io_pgetevents)
+SYSCALL(open_tree)
+SYSCALL(move_mount)
+SYSCALL(fsopen)
+SYSCALL(fsmount)
+SYSCALL(fspick)
+SYSCALL(fsinfo)
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index c19379f0a32e..e6cf3bb0ed2f 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -12,7 +12,7 @@
 #include <uapi/asm/unistd.h>
 
 
-#define NR_syscalls		389
+#define NR_syscalls		395
 
 #define __NR__exit __NR_exit
 
diff --git a/arch/powerpc/include/uapi/asm/unistd.h b/arch/powerpc/include/uapi/asm/unistd.h
index 985534d0b448..89b450c6a246 100644
--- a/arch/powerpc/include/uapi/asm/unistd.h
+++ b/arch/powerpc/include/uapi/asm/unistd.h
@@ -400,5 +400,11 @@
 #define __NR_pkey_mprotect	386
 #define __NR_rseq		387
 #define __NR_io_pgetevents	388
+#define __NR_open_tree		389
+#define __NR_move_mount	390
+#define __NR_fsopen		391
+#define __NR_fsmount		392
+#define __NR_fspick		393
+#define __NR_fsinfo		394
 
 #endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */
-- 
2.16.3