Re: [PATCH] fs/ceph/file: fix memory leaks in __ceph_sync_read()

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On Thu, Dec 5, 2024 at 4:12 PM Ilya Dryomov <idryomov@xxxxxxxxx> wrote:
> Max, would you be willing to redo this patch to pass true for own_pages
> and post a v2?  There is nothing "bad", "partial" or otherwise wrong
> with this version, but having the pages be taken care of automatically
> is a bit nicer and a conflict with Alex's ongoing work would be avoided.

Yes, I will send a patch for this. Even though I don't agree that this
is the best way forward; I'd prefer to fix the leak with a minimal
patch adding only the necessary calls, and not mix this with code
refactoring. A minimal fix is easier to review. Mixing a bug fix with
refactoring is more dangerous, which is important to avoid, because
this patch will be put in all stable branches. But ... if you want to,
I'll do that.

btw. Alex's patch
(https://github.com/ceph/ceph-client/commit/2a802a906f9c89f8ae4)
introduces another memory leak: by postponing the
ceph_osdc_put_request() call, the -EFAULT branch now leaks the
ceph_osd_request object. I'll take care not to make the same mistake
in my v2.





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