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[Qemu-devel] Re: [PATCH v2 4/4] Disable fall-back to read-only when cann
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] Re: [PATCH v2 4/4] Disable fall-back to read-only when cannot open drive's file for read-write |
Date: |
Sun, 17 Jan 2010 16:59:00 +0200 |
User-agent: |
Mutt/1.5.19 (2009-01-05) |
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?
> }
> 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