lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date:	Tue, 16 Sep 2014 11:41:07 +0900
From:	Minchan Kim <>
To:	Dan Streetman <>
	Sergey Senozhatsky <>,
	Nitin Gupta <>,
	Seth Jennings <>,
	Andrew Morton <>
Subject: Re: [PATCH] zsmalloc: simplify init_zspage free obj linking

On Mon, Sep 15, 2014 at 04:58:50PM -0400, Dan Streetman wrote:
> Change zsmalloc init_zspage() logic to iterate through each object on
> each of its pages, checking the offset to verify the object is on the
> current page before linking it into the zspage.
> The current zsmalloc init_zspage free object linking code has logic
> that relies on there only being one page per zspage when PAGE_SIZE
> is a multiple of class->size.  It calculates the number of objects
> for the current page, and iterates through all of them plus one,
> to account for the assumed partial object at the end of the page.
> While this currently works, the logic can be simplified to just
> link the object at each successive offset until the offset is larger
> than PAGE_SIZE, which does not rely on PAGE_SIZE being a multiple of
> class->size.
> Signed-off-by: Dan Streetman <>
> Cc: Minchan Kim <>
Acked-by: Minchan Kim <>

Kind regards,
Minchan Kim
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists