Revision e7820e39b7d19b9fe1928fc19de9361b44150ca6 authored by Eric Dumazet on 21 November 2014, 19:47:16 UTC, committed by David S. Miller on 21 November 2014, 20:26:32 UTC
Not sure what I was thinking, but doing anything after releasing a refcount is suicidal or/and embarrassing. By the time we set skb->fclone to SKB_FCLONE_FREE, another cpu could have released last reference and freed whole skb. We potentially corrupt memory or trap if CONFIG_DEBUG_PAGEALLOC is set. Reported-by: Chris Mason <clm@fb.com> Fixes: ce1a4ea3f1258 ("net: avoid one atomic operation in skb_clone()") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 892d6eb
gcc-ld
#!/bin/sh
# run gcc with ld options
# used as a wrapper to execute link time optimizations
# yes virginia, this is not pretty
ARGS="-nostdlib"
while [ "$1" != "" ] ; do
case "$1" in
-save-temps|-m32|-m64) N="$1" ;;
-r) N="$1" ;;
-[Wg]*) N="$1" ;;
-[olv]|-[Ofd]*|-nostdlib) N="$1" ;;
--end-group|--start-group)
N="-Wl,$1" ;;
-[RTFGhIezcbyYu]*|\
--script|--defsym|-init|-Map|--oformat|-rpath|\
-rpath-link|--sort-section|--section-start|-Tbss|-Tdata|-Ttext|\
--version-script|--dynamic-list|--version-exports-symbol|--wrap|-m)
A="$1" ; shift ; N="-Wl,$A,$1" ;;
-[m]*) N="$1" ;;
-*) N="-Wl,$1" ;;
*) N="$1" ;;
esac
ARGS="$ARGS $N"
shift
done
exec $CC $ARGS
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