# # Makefile for the Linux NET/ROM layer. # obj-$(CONFIG_NETROM) += netrom.o netrom-y := af_netrom.o nr_dev.o nr_in.o nr_loopback.o \ nr_out.o nr_route.o nr_subr.o nr_timer.o netrom-$(CONFIG_SYSCTL) += sysctl_net_netrom.o cgit.cgi/linux/net-next.git/atom/drivers/usb/misc/ezusb.c?h=master' type='application/atom+xml'/>
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authorSong Liu <songliubraving@fb.com>2017-01-12 17:22:41 -0800
committerShaohua Li <shli@fb.com>2017-01-24 11:20:14 -0800
commit86aa1397ddfde563b3692adadb8b8e32e97b4e5e (patch)
tree866e94b5411650b70561ea663ce3680a6d4a364f
parentd46d29f072accb069cb42b5fbebcc77d9094a785 (diff)
md/r5cache: read data into orig_page for prexor of cached data
With write back cache, we use orig_page to do prexor. This patch makes sure we read data into orig_page for it. Flag R5_OrigPageUPTDODATE is added to show whether orig_page has the latest data from raid disk. We introduce a helper function uptodate_for_rmw() to simplify the a couple conditions in handle_stripe_dirtying(). Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Shaohua Li <shli@fb.com>
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