Re: [PATCH 34/34] mm: dynamically allocate page->ptl if it cannot be embedded to struct page

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Christoph Lameter wrote:
> On Tue, 15 Oct 2013, Kirill A. Shutemov wrote:
> 
> > Feel free to propose a patch. I don't see much point.
> 
> Right now you are using a long to stand in for a spinlock_t or a pointer
> to a spinlock_t. An #ifdef would allow to define the proper type and
> therefore the compiler to check that the ptl is correctly used.

You should not use it directly anyway: page->ptl is not there at all if
USE_SPLIT_PTE_PTLOCKS is 0. Compiler checks limited to few helpers and use
a kbuild hack is overkill to me.

-- 
 Kirill A. Shutemov

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>




[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux]     [Linux OMAP]     [Linux MIPS]     [ECOS]     [Asterisk Internet PBX]     [Linux API]