From: David S. Miller Date: Mon, 25 Aug 2014 22:42:25 +0000 (-0700) Subject: Merge branch 'is_kdump_kernel' X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=44a52ffd6402a19544fb9dee081730d36d413202;p=sagit-ice-cold%2Fkernel_xiaomi_msm8998.git Merge branch 'is_kdump_kernel' Amir Vadai says: ==================== Make is_kdump_kernel() accessible from modules I'm re-spinning this patchset. At the begining it was suggested to use a different name for the parameter, but at the end [3] the resolution was to leave it as it is in this patch. Drivers need to know if running from kdump kernel in order to change their memory profile - since kdump environment is limited by available memory. Currently there are drivers that are using reset_devices as suggested in [2]. In [2] it was suggested to use reset_devices, but the context was, to enable driver to know when the hardware device is needed to be reset, and not if this is a kdump environment. We think that is_kdump_kernel() is better suited to select between different memory profiles. The first patch in this patchset exports a needed symbol in order to make is_kdump_kernel() accessible from the drivers. The rest of the patches change from reset_devices to is_kdump_kernel() in 2 networking drivers. The idea of this patchset was suggested by Vivek Goyal. Tested (only build) and applied on top of commit 8fc54f6: ("net: use reciprocal_scale() helper") [1] - ea1c1af: ("net/mlx4_en: Reduce memory consumption on kdump kernel") [2] - https://lkml.org/lkml/2011/1/27/341 [3] - http://www.spinics.net/lists/netdev/msg291492.html ==================== Signed-off-by: David S. Miller --- 44a52ffd6402a19544fb9dee081730d36d413202