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[Qemu-devel] Re: [PATCH v2 4/4] Disable fall-back to read-only when cann
From: |
Naphtali Sprei |
Subject: |
[Qemu-devel] Re: [PATCH v2 4/4] Disable fall-back to read-only when cannot open drive's file for read-write |
Date: |
Mon, 18 Jan 2010 13:45:32 +0200 |
User-agent: |
Thunderbird 2.0.0.23 (X11/20090817) |
Michael S. Tsirkin wrote:
> On Sun, Jan 17, 2010 at 04:48:15PM +0200, Naphtali Sprei wrote:
>> Signed-off-by: Naphtali Sprei <address@hidden>
>> ---
>> block.c | 6 ------
>> 1 files changed, 0 insertions(+), 6 deletions(-)
>>
>> diff --git a/block.c b/block.c
>> index 8def3c4..f90e983 100644
>> --- a/block.c
>> +++ b/block.c
>> @@ -444,8 +444,6 @@ int bdrv_open2(BlockDriverState *bs, const char
>> *filename, int flags,
>> if (flags & (BDRV_O_CACHE_WB|BDRV_O_NOCACHE))
>> bs->enable_write_cache = 1;
>>
>> - /* Note: for compatibility, we open disk image files as RDWR, and
>> - RDONLY as fallback */
>> bs->read_only = (flags & BDRV_O_RDWR) == 0;
>> if (!(flags & BDRV_O_FILE)) {
>> open_flags = (flags & (BDRV_O_RDWR |
>> BDRV_O_CACHE_MASK|BDRV_O_NATIVE_AIO));
>> @@ -459,10 +457,6 @@ int bdrv_open2(BlockDriverState *bs, const char
>> *filename, int flags,
>> ret = -ENOTSUP;
>> } else {
>> ret = drv->bdrv_open(bs, filename, open_flags);
>> - if ((ret == -EACCES || ret == -EPERM) && !(flags & BDRV_O_FILE)) {
>> - ret = drv->bdrv_open(bs, filename, open_flags & ~BDRV_O_RDWR);
>> - bs->read_only = 1;
>> - }
>
> Maybe print an error message explaining the problem and
> suggesting the solution?
Printing done in (some of the) callers.
Should add suggestion. How is it done in QMP ?
>
>> }
>> if (ret < 0) {
>> qemu_free(bs->opaque);
>> --
>> 1.6.3.3
>>
>>
- [Qemu-devel] [PATCH v2 0/4] Modifications to the drives' readonly attribute, Naphtali Sprei, 2010/01/17
- [Qemu-devel] Re: [PATCH v2 2/4] Clean-up a little bit the RW related bits of BDRV_O_FLAGS. BDRV_O_RDONLY gone (and so is BDRV_O_ACCESS). Default value for bdrv_flags (0/zero) is READ-ONLY. Need to explicitly request READ-WRITE., Michael S. Tsirkin, 2010/01/17
- Re: [Qemu-devel] Re: [PATCH v2 2/4] Clean-up a little bit the RW related bits of BDRV_O_FLAGS. BDRV_O_RDONLY gone (and so is BDRV_O_ACCESS). Default value for bdrv_flags (0/zero) is READ-ONLY. Need to explicitly request READ-WRITE., Markus Armbruster, 2010/01/18
- Re: [Qemu-devel] Re: [PATCH v2 2/4] Clean-up a little bit the RW related bits of BDRV_O_FLAGS. BDRV_O_RDONLY gone (and so is BDRV_O_ACCESS). Default value for bdrv_flags (0/zero) is READ-ONLY. Need to explicitly request READ-WRITE., Michael S. Tsirkin, 2010/01/18
- Re: [Qemu-devel] Re: [PATCH v2 2/4] Clean-up a little bit the RW related bits of BDRV_O_FLAGS. BDRV_O_RDONLY gone (and so is BDRV_O_ACCESS). Default value for bdrv_flags (0/zero) is READ-ONLY. Need to explicitly request READ-WRITE., Markus Armbruster, 2010/01/18
- Re: [Qemu-devel] Re: [PATCH v2 2/4] Clean-up a little bit the RW related bits of BDRV_O_FLAGS. BDRV_O_RDONLY gone (and so is BDRV_O_ACCESS). Default value for bdrv_flags (0/zero) is READ-ONLY. Need to explicitly request READ-WRITE., Jamie Lokier, 2010/01/19
- Re: [Qemu-devel] Re: [PATCH v2 2/4] Clean-up a little bit the RW related bits of BDRV_O_FLAGS. BDRV_O_RDONLY gone (and so is BDRV_O_ACCESS). Default value for bdrv_flags (0/zero) is READ-ONLY. Need to explicitly request READ-WRITE., Markus Armbruster, 2010/01/20
- Re: [Qemu-devel] Re: [PATCH v2 2/4] Clean-up a little bit the RW related bits of BDRV_O_FLAGS. BDRV_O_RDONLY gone (and so is BDRV_O_ACCESS). Default value for bdrv_flags (0/zero) is READ-ONLY. Need to explicitly request READ-WRITE., Michael S. Tsirkin, 2010/01/20
- Re: [Qemu-devel] Re: [PATCH v2 2/4] Clean-up a little bit the RW related bits of BDRV_O_FLAGS. BDRV_O_RDONLY gone (and so is BDRV_O_ACCESS). Default value for bdrv_flags (0/zero) is READ-ONLY. Need to explicitly request READ-WRITE., Markus Armbruster, 2010/01/20
- Re: [Qemu-devel] Re: [PATCH v2 2/4] Clean-up a little bit the RW related bits of BDRV_O_FLAGS. BDRV_O_RDONLY gone (and so is BDRV_O_ACCESS). Default value for bdrv_flags (0/zero) is READ-ONLY. Need to explicitly request READ-WRITE., Michael S. Tsirkin, 2010/01/20
- Re: [Qemu-devel] Re: [PATCH v2 2/4] Clean-up a little bit the RW related bits of BDRV_O_FLAGS. BDRV_O_RDONLY gone (and so is BDRV_O_ACCESS). Default value for bdrv_flags (0/zero) is READ-ONLY. Need to explicitly request READ-WRITE., Markus Armbruster, 2010/01/20