Commit fe5241bf authored by Jeff Cody's avatar Jeff Cody
Browse files

block: add bdrv_set_read_only() helper function 



We have a helper wrapper for checking for the BDS read_only flag,
add a helper wrapper to set the read_only flag as well.

Reviewed-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: default avatarJeff Cody <jcody@redhat.com>
Reviewed-by: default avatarJohn Snow <jsnow@redhat.com>
Message-id: 9b18972d05f5fa2ac16c014f0af98d680553048d.1491597120.git.jcody@redhat.com
parent a98f49f4

block.c

+5 −0
Original line number Diff line number Diff line
@@ -192,6 +192,11 @@ void path_combine(char *dest, int dest_size, 
    }

}



void bdrv_set_read_only(BlockDriverState *bs, bool read_only)

{

    bs->read_only = read_only;

}



void bdrv_get_full_backing_filename_from_filename(const char *backed,

                                                  const char *backing,

                                                  char *dest, size_t sz,

block/bochs.c

+1 −1
Original line number Diff line number Diff line
@@ -110,7 +110,7 @@ static int bochs_open(BlockDriverState *bs, QDict *options, int flags, 
        return -EINVAL;

    }



    bs->read_only = true; /* no write support yet */

    bdrv_set_read_only(bs, true); /* no write support yet */



    ret = bdrv_pread(bs->file, 0, &bochs, sizeof(bochs));

    if (ret < 0) {

block/cloop.c

+1 −1
Original line number Diff line number Diff line
@@ -72,7 +72,7 @@ static int cloop_open(BlockDriverState *bs, QDict *options, int flags, 
        return -EINVAL;

    }



    bs->read_only = true;

    bdrv_set_read_only(bs, true);



    /* read header */

    ret = bdrv_pread(bs->file, 128, &s->block_size, 4);

block/dmg.c

+1 −1
Original line number Diff line number Diff line
@@ -420,7 +420,7 @@ static int dmg_open(BlockDriverState *bs, QDict *options, int flags, 
    }



    block_module_load_one("dmg-bz2");

    bs->read_only = true;

    bdrv_set_read_only(bs, true);



    s->n_chunks = 0;

    s->offsets = s->lengths = s->sectors = s->sectorcounts = NULL;

block/rbd.c

+1 −1
Original line number Diff line number Diff line
@@ -641,7 +641,7 @@ static int qemu_rbd_open(BlockDriverState *bs, QDict *options, int flags, 
        goto failed_open;

    }



    bs->read_only = (s->snap != NULL);

    bdrv_set_read_only(bs, (s->snap != NULL));



    qemu_opts_del(opts);

    return 0;