block: add bdrv_reopen() support for raw hdev, floppy, and cdrom

For hdev, floppy, and cdrom, the reopen() handlers are the same as
for the file reopen handler.  For floppy and cdrom types, however,
we keep O_NONBLOCK, as in the _open function.

Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

diff --git a/block/raw-posix.c b/block/raw-posix.c
index f2f0404f6f58b575adaee96d6d69aad9feecd254..550c81f22b111eaefc07157b94a278b6c4bbaa32 100644 (file)
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -333,6 +333,10 @@ static int raw_reopen_prepare(BDRVReopenState *state,
     }
 #endif
 
+    if (s->type == FTYPE_FD || s->type == FTYPE_CD) {
+        raw_s->open_flags |= O_NONBLOCK;
+    }
+
     raw_parse_flags(state->flags, &raw_s->open_flags);
 
     raw_s->fd = -1;
@@ -1409,6 +1413,9 @@ static BlockDriver bdrv_host_device = {
     .bdrv_probe_device  = hdev_probe_device,
     .bdrv_file_open     = hdev_open,
     .bdrv_close         = raw_close,
+    .bdrv_reopen_prepare = raw_reopen_prepare,
+    .bdrv_reopen_commit  = raw_reopen_commit,
+    .bdrv_reopen_abort   = raw_reopen_abort,
     .bdrv_create        = hdev_create,
     .create_options     = raw_create_options,
     .bdrv_has_zero_init = hdev_has_zero_init,
@@ -1530,6 +1537,9 @@ static BlockDriver bdrv_host_floppy = {
     .bdrv_probe_device = floppy_probe_device,
     .bdrv_file_open     = floppy_open,
     .bdrv_close         = raw_close,
+    .bdrv_reopen_prepare = raw_reopen_prepare,
+    .bdrv_reopen_commit  = raw_reopen_commit,
+    .bdrv_reopen_abort   = raw_reopen_abort,
     .bdrv_create        = hdev_create,
     .create_options     = raw_create_options,
     .bdrv_has_zero_init = hdev_has_zero_init,
@@ -1629,6 +1639,9 @@ static BlockDriver bdrv_host_cdrom = {
     .bdrv_probe_device = cdrom_probe_device,
     .bdrv_file_open     = cdrom_open,
     .bdrv_close         = raw_close,
+    .bdrv_reopen_prepare = raw_reopen_prepare,
+    .bdrv_reopen_commit  = raw_reopen_commit,
+    .bdrv_reopen_abort   = raw_reopen_abort,
     .bdrv_create        = hdev_create,
     .create_options     = raw_create_options,
     .bdrv_has_zero_init = hdev_has_zero_init,
@@ -1748,6 +1761,9 @@ static BlockDriver bdrv_host_cdrom = {
     .bdrv_probe_device = cdrom_probe_device,
     .bdrv_file_open     = cdrom_open,
     .bdrv_close         = raw_close,
+    .bdrv_reopen_prepare = raw_reopen_prepare,
+    .bdrv_reopen_commit  = raw_reopen_commit,
+    .bdrv_reopen_abort   = raw_reopen_abort,
     .bdrv_create        = hdev_create,
     .create_options     = raw_create_options,
     .bdrv_has_zero_init = hdev_has_zero_init,