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authorRafael J. Wysocki <rjw@sisk.pl>2010-03-05 13:42:13 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-06 11:26:26 -0800
commit452aa6999e6703ffbddd7f6ea124d3968915f3e3 (patch)
tree48e375fdb60920675f68b444b462903ad8bb6940 /include/linux/i2c
parentad2bd7e0e9647cd48593a6b3a2be07dc2c2d28ed (diff)
mm/pm: force GFP_NOIO during suspend/hibernation and resume
There are quite a few GFP_KERNEL memory allocations made during suspend/hibernation and resume that may cause the system to hang, because the I/O operations they depend on cannot be completed due to the underlying devices being suspended. Avoid this problem by clearing the __GFP_IO and __GFP_FS bits in gfp_allowed_mask before suspend/hibernation and restoring the original values of these bits in gfp_allowed_mask durig the subsequent resume. [akpm@linux-foundation.org: fix CONFIG_PM=n linkage] Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reported-by: Maxim Levitsky <maximlevitsky@gmail.com> Cc: Sebastian Ott <sebott@linux.vnet.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/i2c')
0 files changed, 0 insertions, 0 deletions