Re: [PATCH v2 9/9] block/write-threshold: drop extra includes

2021-05-06 Thread Max Reitz

On 05.05.21 22:34, Vladimir Sementsov-Ogievskiy wrote:

05.05.2021 19:23, Max Reitz wrote:

On 04.05.21 10:25, Vladimir Sementsov-Ogievskiy wrote:

Signed-off-by: Vladimir Sementsov-Ogievskiy 
---
  block/write-threshold.c | 3 ---
  1 file changed, 3 deletions(-)

diff --git a/block/write-threshold.c b/block/write-threshold.c
index fbf4e6f5c4..db271c5537 100644
--- a/block/write-threshold.c
+++ b/block/write-threshold.c
@@ -12,10 +12,7 @@
   */
  #include "qemu/osdep.h"
-#include "block/block_int.h"


We need this (for bs->write_threshold_offset), but it’s included 
through block/block_int.h.  I’m not sure whether we should drop it 
from the includes.


Perhaps we should instead drop block_int.h from write-threshold.h? 
Shouldn’t including qemu/osdep.h (which includes qemu/typedefs.h, 
which forward-declares BDS) be sufficient there?



-#include "qemu/coroutine.h"
  #include "block/write-threshold.h"
-#include "qemu/notify.h"
  #include "qapi/error.h"
  #include "qapi/qapi-commands-block-core.h"
  #include "qapi/qapi-events-block-core.h"


Btw, where does qemu/atomic.h come in?  Looks like it comes through 
block_int.h.  I think we should include it explicitly.




I'm not sure. If something is included through another include, why to 
include it explicitly?


Because the other include may change.  I’d include something if you need 
the feature, and we need atomics here.


And block_int.h doesn’t even provide atomic.h, it comes through various 
of its includes (which are probably not included to provide atomics). 
So this is already indirect and basically just incidental; block_int.h 
doesn’t guarantee atomic.h.


Another thing: I see that other fields in BDS that are to be accessed 
with atomic ops have a comment saying so.  I think 
write_threshold_offset should have, too.


Max

For me, if statement can be removed with no effect, it's an extra 
statement.








Re: [PATCH v2 9/9] block/write-threshold: drop extra includes

2021-05-05 Thread Vladimir Sementsov-Ogievskiy

05.05.2021 19:23, Max Reitz wrote:

On 04.05.21 10:25, Vladimir Sementsov-Ogievskiy wrote:

Signed-off-by: Vladimir Sementsov-Ogievskiy 
---
  block/write-threshold.c | 3 ---
  1 file changed, 3 deletions(-)

diff --git a/block/write-threshold.c b/block/write-threshold.c
index fbf4e6f5c4..db271c5537 100644
--- a/block/write-threshold.c
+++ b/block/write-threshold.c
@@ -12,10 +12,7 @@
   */
  #include "qemu/osdep.h"
-#include "block/block_int.h"


We need this (for bs->write_threshold_offset), but it’s included through 
block/block_int.h.  I’m not sure whether we should drop it from the includes.

Perhaps we should instead drop block_int.h from write-threshold.h? Shouldn’t 
including qemu/osdep.h (which includes qemu/typedefs.h, which forward-declares 
BDS) be sufficient there?


-#include "qemu/coroutine.h"
  #include "block/write-threshold.h"
-#include "qemu/notify.h"
  #include "qapi/error.h"
  #include "qapi/qapi-commands-block-core.h"
  #include "qapi/qapi-events-block-core.h"


Btw, where does qemu/atomic.h come in?  Looks like it comes through 
block_int.h.  I think we should include it explicitly.



I'm not sure. If something is included through another include, why to include 
it explicitly?

For me, if statement can be removed with no effect, it's an extra statement.


--
Best regards,
Vladimir



Re: [PATCH v2 9/9] block/write-threshold: drop extra includes

2021-05-05 Thread Max Reitz

On 04.05.21 10:25, Vladimir Sementsov-Ogievskiy wrote:

Signed-off-by: Vladimir Sementsov-Ogievskiy 
---
  block/write-threshold.c | 3 ---
  1 file changed, 3 deletions(-)

diff --git a/block/write-threshold.c b/block/write-threshold.c
index fbf4e6f5c4..db271c5537 100644
--- a/block/write-threshold.c
+++ b/block/write-threshold.c
@@ -12,10 +12,7 @@
   */
  
  #include "qemu/osdep.h"

-#include "block/block_int.h"


We need this (for bs->write_threshold_offset), but it’s included through 
block/block_int.h.  I’m not sure whether we should drop it from the 
includes.


Perhaps we should instead drop block_int.h from write-threshold.h? 
Shouldn’t including qemu/osdep.h (which includes qemu/typedefs.h, which 
forward-declares BDS) be sufficient there?



-#include "qemu/coroutine.h"
  #include "block/write-threshold.h"
-#include "qemu/notify.h"
  #include "qapi/error.h"
  #include "qapi/qapi-commands-block-core.h"
  #include "qapi/qapi-events-block-core.h"


Btw, where does qemu/atomic.h come in?  Looks like it comes through 
block_int.h.  I think we should include it explicitly.


Max




[PATCH v2 9/9] block/write-threshold: drop extra includes

2021-05-04 Thread Vladimir Sementsov-Ogievskiy
Signed-off-by: Vladimir Sementsov-Ogievskiy 
---
 block/write-threshold.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/block/write-threshold.c b/block/write-threshold.c
index fbf4e6f5c4..db271c5537 100644
--- a/block/write-threshold.c
+++ b/block/write-threshold.c
@@ -12,10 +12,7 @@
  */
 
 #include "qemu/osdep.h"
-#include "block/block_int.h"
-#include "qemu/coroutine.h"
 #include "block/write-threshold.h"
-#include "qemu/notify.h"
 #include "qapi/error.h"
 #include "qapi/qapi-commands-block-core.h"
 #include "qapi/qapi-events-block-core.h"
-- 
2.29.2