raw_bsd: Don't advertise flags not supported by protocol layer

[mirror_qemu.git] / block / raw_bsd.c

diff --git a/block/raw_bsd.c b/block/raw_bsd.c
index bcaee115e17320f6b4187cf67a759c1290366382..d7674132f287ea057a39971173d5975886a2bb7a 100644 (file)
--- a/block/raw_bsd.c
+++ b/block/raw_bsd.c
@@ -1,6 +1,6 @@
 /* BlockDriver implementation for "raw"
  *
- * Copyright (C) 2010, 2013, Red Hat, Inc.
+ * Copyright (C) 2010-2016 Red Hat, Inc.
  * Copyright (C) 2010, Blue Swirl <blauwirbel@gmail.com>
  * Copyright (C) 2009, Anthony Liguori <aliguori@us.ibm.com>
  *
@@ -28,6 +28,7 @@
 
 #include "qemu/osdep.h"
 #include "block/block_int.h"
+#include "qapi/error.h"
 #include "qemu/option.h"
 
 static QemuOptsList raw_create_opts = {
@@ -53,11 +54,12 @@ static int coroutine_fn raw_co_readv(BlockDriverState *bs, int64_t sector_num,
                                      int nb_sectors, QEMUIOVector *qiov)
 {
     BLKDBG_EVENT(bs->file, BLKDBG_READ_AIO);
-    return bdrv_co_readv(bs->file->bs, sector_num, nb_sectors, qiov);
+    return bdrv_co_readv(bs->file, sector_num, nb_sectors, qiov);
 }
 
-static int coroutine_fn raw_co_writev(BlockDriverState *bs, int64_t sector_num,
-                                      int nb_sectors, QEMUIOVector *qiov)
+static int coroutine_fn
+raw_co_writev_flags(BlockDriverState *bs, int64_t sector_num, int nb_sectors,
+                    QEMUIOVector *qiov, int flags)
 {
     void *buf = NULL;
     BlockDriver *drv;
@@ -103,7 +105,8 @@ static int coroutine_fn raw_co_writev(BlockDriverState *bs, int64_t sector_num,
     }
 
     BLKDBG_EVENT(bs->file, BLKDBG_WRITE_AIO);
-    ret = bdrv_co_writev(bs->file->bs, sector_num, nb_sectors, qiov);
+    ret = bdrv_co_pwritev(bs->file, sector_num * BDRV_SECTOR_SIZE,
+                          nb_sectors * BDRV_SECTOR_SIZE, qiov, flags);
 
 fail:
     if (qiov == &local_qiov) {
@@ -115,18 +118,20 @@ fail:
 
 static int64_t coroutine_fn raw_co_get_block_status(BlockDriverState *bs,
                                             int64_t sector_num,
-                                            int nb_sectors, int *pnum)
+                                            int nb_sectors, int *pnum,
+                                            BlockDriverState **file)
 {
     *pnum = nb_sectors;
+    *file = bs->file->bs;
     return BDRV_BLOCK_RAW | BDRV_BLOCK_OFFSET_VALID | BDRV_BLOCK_DATA |
            (sector_num << BDRV_SECTOR_BITS);
 }
 
-static int coroutine_fn raw_co_write_zeroes(BlockDriverState *bs,
-                                            int64_t sector_num, int nb_sectors,
-                                            BdrvRequestFlags flags)
+static int coroutine_fn raw_co_pwrite_zeroes(BlockDriverState *bs,
+                                             int64_t offset, int count,
+                                             BdrvRequestFlags flags)
 {
-    return bdrv_co_write_zeroes(bs->file->bs, sector_num, nb_sectors, flags);
+    return bdrv_co_pwrite_zeroes(bs->file, offset, count, flags);
 }
 
 static int coroutine_fn raw_co_discard(BlockDriverState *bs,
@@ -145,11 +150,6 @@ static int raw_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
     return bdrv_get_info(bs->file->bs, bdi);
 }
 
-static void raw_refresh_limits(BlockDriverState *bs, Error **errp)
-{
-    bs->bl = bs->file->bs->bl;
-}
-
 static int raw_truncate(BlockDriverState *bs, int64_t offset)
 {
     return bdrv_truncate(bs->file->bs, offset);
@@ -185,20 +185,17 @@ static int raw_has_zero_init(BlockDriverState *bs)
 
 static int raw_create(const char *filename, QemuOpts *opts, Error **errp)
 {
-    Error *local_err = NULL;
-    int ret;
-
-    ret = bdrv_create_file(filename, opts, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-    }
-    return ret;
+    return bdrv_create_file(filename, opts, errp);
 }
 
 static int raw_open(BlockDriverState *bs, QDict *options, int flags,
                     Error **errp)
 {
     bs->sg = bs->file->bs->sg;
+    bs->supported_write_flags = BDRV_REQ_FUA &
+        bs->file->bs->supported_write_flags;
+    bs->supported_zero_flags = (BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP) &
+        bs->file->bs->supported_zero_flags;
 
     if (bs->probed && !bdrv_is_read_only(bs)) {
         fprintf(stderr,
@@ -244,15 +241,14 @@ BlockDriver bdrv_raw = {
     .bdrv_close           = &raw_close,
     .bdrv_create          = &raw_create,
     .bdrv_co_readv        = &raw_co_readv,
-    .bdrv_co_writev       = &raw_co_writev,
-    .bdrv_co_write_zeroes = &raw_co_write_zeroes,
+    .bdrv_co_writev_flags = &raw_co_writev_flags,
+    .bdrv_co_pwrite_zeroes = &raw_co_pwrite_zeroes,
     .bdrv_co_discard      = &raw_co_discard,
     .bdrv_co_get_block_status = &raw_co_get_block_status,
     .bdrv_truncate        = &raw_truncate,
     .bdrv_getlength       = &raw_getlength,
     .has_variable_length  = true,
     .bdrv_get_info        = &raw_get_info,
-    .bdrv_refresh_limits  = &raw_refresh_limits,
     .bdrv_probe_blocksizes = &raw_probe_blocksizes,
     .bdrv_probe_geometry  = &raw_probe_geometry,
     .bdrv_media_changed   = &raw_media_changed,