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[09/11] linux-user: fadvise64 implementation

Message ID 547aa1374924001ec97dd08eec89fc59e095595b.1250193232.git.riku.voipio@iki.fi
State Superseded
Headers show

Commit Message

Riku Voipio Aug. 13, 2009, 8:06 p.m. UTC 
From: Ulrich Hecht <uli@suse.de>

good enough to pass all LTP fadvise64 tests

Signed-off-by: Ulrich Hecht <uli@suse.de>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
---
 linux-user/syscall.c |   17 ++++++++++++++---
 1 files changed, 14 insertions(+), 3 deletions(-)
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Patch

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 58c1b29..f90be71 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -6649,12 +6649,23 @@  abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
 		arg4 = temp;
 	}
 #endif
-#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64)
+#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64) || defined(TARGET_NR_fadvise64)
 #ifdef TARGET_NR_fadvise64_64
     case TARGET_NR_fadvise64_64:
 #endif
-        /* This is a hint, so ignoring and returning success is ok.  */
-	ret = get_errno(0);
+#ifdef TARGET_NR_fadvise64
+    case TARGET_NR_fadvise64:
+#endif
+#ifdef TARGET_S390X
+        switch (arg4) {
+        case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
+        case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
+        case 6: arg4 = POSIX_FADV_DONTNEED; break;
+        case 7: arg4 = POSIX_FADV_NOREUSE; break;
+        default: break;
+        }
+#endif
+        ret = -posix_fadvise(arg1, arg2, arg3, arg4);
 	break;
 #endif
 #ifdef TARGET_NR_madvise