Re: [PATCH 1/3 v2] rbd: skip the copyup when an entire object writing

2014-03-27 Thread Josh Durgin
On 03/12/2014 08:21 PM, Guangliang Zhao wrote: It need to copyup the parent's content when layered writing, but an entire object write would overwrite it, so skip it. Signed-off-by: Guangliang Zhao lucienc...@gmail.com --- This looks good to me. This situation is unlikely with normal I/O, but

[PATCH 1/3 v2] rbd: skip the copyup when an entire object writing

2014-03-12 Thread Guangliang Zhao
It need to copyup the parent's content when layered writing, but an entire object write would overwrite it, so skip it. Signed-off-by: Guangliang Zhao lucienc...@gmail.com --- drivers/block/rbd.c | 49 ++--- 1 file changed, 34 insertions(+), 15

Re: [PATCH 1/3 v2] rbd: skip the copyup when an entire object writing

2014-03-12 Thread Alex Elder
On 03/12/2014 10:21 PM, Guangliang Zhao wrote: It need to copyup the parent's content when layered writing, but an entire object write would overwrite it, so skip it. Signed-off-by: Guangliang Zhao lucienc...@gmail.com --- drivers/block/rbd.c | 49