[v2,07/14] block-backend: use bdrv_getlength instead of blk_getlength

Commit Message

Kevin Wolf Jan. 13, 2023, 8:42 p.m. UTC

From: Emanuele Giuseppe Esposito <[e-mail]>

The only difference is that blk_ checks if the block is available,
but this check is already performed above in blk_check_byte_request().

This is in preparation for the graph rdlock, which will be taken
by both the callers of blk_check_byte_request() and blk_getlength().

Signed-off-by: Emanuele Giuseppe Esposito <[e-mail]>
Signed-off-by: Kevin Wolf <[e-mail]>
---
 block/block-backend.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/block/block-backend.c b/block/block-backend.c
index 6e5e2693b3..37b51f409f 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1253,7 +1253,7 @@  static int blk_check_byte_request(BlockBackend *blk, int64_t offset,
     }
 
     if (!blk->allow_write_beyond_eof) {
-        len = blk_getlength(blk);
+        len = bdrv_getlength(blk_bs(blk));
         if (len < 0) {
             return len;
         }