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  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Fri, 06 Sep 2013 14:27:35 -0400 (EDT)
From:	David Miller <>
Subject: Re: [PATCH] bnx2x: avoid atomic allocations during initialization

From: Michal Schmidt <>
Date: Thu,  5 Sep 2013 22:13:09 +0200

> During initialization bnx2x allocates significant amounts of memory
> (for rx data, rx SGEs, TPA pool) using atomic allocations.
> I received a report where bnx2x failed to allocate SGEs and it had
> to fall back to TPA-less operation.
> Let's use GFP_KERNEL allocations during initialization, which runs
> in process context. Add gfp_t parameters to functions that are used
> both in initialization and in the receive path.
> Use an unlikely branch in bnx2x_frag_alloc() to avoid atomic allocation
> by netdev_alloc_frag(). The branch is taken several thousands of times
> during initialization, but then never more. Note that fp->rx_frag_size
> is never greater than PAGE_SIZE, so __get_free_page() can be used here.
> Signed-off-by: Michal Schmidt <>

This change looks good to me, if some Broadcom folks could take a look
and ACK/NACK that would be great.

To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to
More majordomo info at

Powered by blists - more mailing lists