[Xen-changelog] [qemu-upstream-unstable] block: add bdrv_reopen() support for raw hdev, floppy, and cdrom

[patchbot@xxxxxxx]

commit 1bc6b705eed02dab9feb0e663219b5623f3d684d
Author: Jeff Cody <jcody@xxxxxxxxxx>
Date:   Tue Nov 20 10:21:10 2012 -0500

    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@xxxxxxxxxx>
    Signed-off-by: Stefan Hajnoczi <stefanha@xxxxxxxxxx>
---
 block/raw-posix.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/block/raw-posix.c b/block/raw-posix.c
index f2f0404..550c81f 100644
--- 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,
--
generated by git-patchbot for /home/xen/git/qemu-upstream-unstable.git

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