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[PULL,14/19] linux-user: support ioprio_{get, set} syscalls

Message ID 82da68f47b87a9a81fb87415df72b118901dfe8f.1403529801.git.riku.voipio@linaro.org
State Accepted
Headers show

Commit Message

Riku Voipio June 23, 2014, 1:26 p.m. UTC 
From: Paul Burton <paul@archlinuxmips.org>

Add support for the ioprio_get & ioprio_set syscalls, allowing their
use by target programs.

Signed-off-by: Paul Burton <paul@archlinuxmips.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
---
 linux-user/syscall.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
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Patch

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index ca38147..c70b3b0 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -252,6 +252,12 @@  _syscall2(int, capget, struct __user_cap_header_struct *, header,
           struct __user_cap_data_struct *, data);
 _syscall2(int, capset, struct __user_cap_header_struct *, header,
           struct __user_cap_data_struct *, data);
+#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
+_syscall2(int, ioprio_get, int, which, int, who)
+#endif
+#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
+_syscall3(int, ioprio_set, int, which, int, who, int, ioprio)
+#endif
 
 static bitmask_transtbl fcntl_flags_tbl[] = {
   { TARGET_O_ACCMODE,   TARGET_O_WRONLY,    O_ACCMODE,   O_WRONLY,    },
@@ -9536,6 +9542,18 @@  abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
         break;
 #endif
 
+#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
+    case TARGET_NR_ioprio_get:
+        ret = get_errno(ioprio_get(arg1, arg2));
+        break;
+#endif
+
+#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
+    case TARGET_NR_ioprio_set:
+        ret = get_errno(ioprio_set(arg1, arg2, arg3));
+        break;
+#endif
+
     default:
     unimplemented:
         gemu_log("qemu: Unsupported syscall: %d\n", num);