From: Dimitris Aragiorgis <dimara@arrikto.com>
Date: Tue, 23 Jun 2015 10:44:58 +0000 (+0300)
Subject: raw-posix: DPRINTF instead of DEBUG_BLOCK_PRINT
X-Git-Tag: TizenStudio_2.0_p2.3.2~208^2~97^2~5
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bcb225550dcc0d6fcef8e97012bae572ba78f73a;p=sdk%2Femulator%2Fqemu.git

raw-posix: DPRINTF instead of DEBUG_BLOCK_PRINT

Building the QEMU tools fails if we #define DEBUG_BLOCK inside
block/raw-posix.c. Here instead of adding qemu-log.o in block-obj-y
so that DEBUG_BLOCK_PRINT can be used, we substitute the latter with
a simple DPRINTF() (that does not cause bit-rot).

Signed-off-by: Dimitris Aragiorgis <dimara@arrikto.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435056300-14924-4-git-send-email-dimara@arrikto.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---

diff --git a/block/raw-posix.c b/block/raw-posix.c
index b2097fc..23c4577 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -99,12 +99,18 @@
 //#define DEBUG_FLOPPY
 
 //#define DEBUG_BLOCK
-#if defined(DEBUG_BLOCK)
-#define DEBUG_BLOCK_PRINT(formatCstr, ...) do { if (qemu_log_enabled()) \
-    { qemu_log(formatCstr, ## __VA_ARGS__); qemu_log_flush(); } } while (0)
+
+#ifdef DEBUG_BLOCK
+# define DEBUG_BLOCK_PRINT 1
 #else
-#define DEBUG_BLOCK_PRINT(formatCstr, ...)
+# define DEBUG_BLOCK_PRINT 0
 #endif
+#define DPRINTF(fmt, ...) \
+do { \
+    if (DEBUG_BLOCK_PRINT) { \
+        printf(fmt, ## __VA_ARGS__); \
+    } \
+} while (0)
 
 /* OS X does not have O_DSYNC */
 #ifndef O_DSYNC
@@ -1020,6 +1026,7 @@ static ssize_t handle_aiocb_rw(RawPosixAIOData *aiocb)
 static int xfs_write_zeroes(BDRVRawState *s, int64_t offset, uint64_t bytes)
 {
     struct xfs_flock64 fl;
+    int err;
 
     memset(&fl, 0, sizeof(fl));
     fl.l_whence = SEEK_SET;
@@ -1027,8 +1034,9 @@ static int xfs_write_zeroes(BDRVRawState *s, int64_t offset, uint64_t bytes)
     fl.l_len = bytes;
 
     if (xfsctl(NULL, s->fd, XFS_IOC_ZERO_RANGE, &fl) < 0) {
-        DEBUG_BLOCK_PRINT("cannot write zero range (%s)\n", strerror(errno));
-        return -errno;
+        err = errno;
+        DPRINTF("cannot write zero range (%s)\n", strerror(errno));
+        return -err;
     }
 
     return 0;
@@ -1037,6 +1045,7 @@ static int xfs_write_zeroes(BDRVRawState *s, int64_t offset, uint64_t bytes)
 static int xfs_discard(BDRVRawState *s, int64_t offset, uint64_t bytes)
 {
     struct xfs_flock64 fl;
+    int err;
 
     memset(&fl, 0, sizeof(fl));
     fl.l_whence = SEEK_SET;
@@ -1044,8 +1053,9 @@ static int xfs_discard(BDRVRawState *s, int64_t offset, uint64_t bytes)
     fl.l_len = bytes;
 
     if (xfsctl(NULL, s->fd, XFS_IOC_UNRESVSP64, &fl) < 0) {
-        DEBUG_BLOCK_PRINT("cannot punch hole (%s)\n", strerror(errno));
-        return -errno;
+        err = errno;
+        DPRINTF("cannot punch hole (%s)\n", strerror(errno));
+        return -err;
     }
 
     return 0;