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| author | Michael Bestas <mkbestas@lineageos.org> | 2021-03-17 21:27:13 +0200 |
|---|---|---|
| committer | Michael Bestas <mkbestas@lineageos.org> | 2021-03-17 21:27:13 +0200 |
| commit | 183f2051d299eb7b35d8e37d01be9077dd809839 (patch) | |
| tree | 4937226d67edb7c827ce7a360d1f83ff07dd36e9 /net/core/skbuff.c | |
| parent | c66c1e4925165243b33081fd609c4a8a7d35e2fc (diff) | |
| parent | 58bc8e0469d0808754b42e423934da639c07b6ba (diff) | |
Merge branch 'android-4.4-p' of https://android.googlesource.com/kernel/common into lineage-18.1-caf-msm8998
This brings LA.UM.9.2.r1-02700-SDMxx0.0 up to date with
https://android.googlesource.com/kernel/common/ android-4.4-p at commit:
58bc8e0469d08 Merge 4.4.261 into android-4.4-p
Conflicts:
drivers/block/zram/zram_drv.c
drivers/block/zram/zram_drv.h
mm/zsmalloc.c
Change-Id: I451bffa685eaaea04938bc6d0b8e3f4bb0f869e9
Diffstat (limited to 'net/core/skbuff.c')
| -rw-r--r-- | net/core/skbuff.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 727dccc887fe..031f5cc007f2 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -2654,7 +2654,19 @@ EXPORT_SYMBOL(skb_split); */ static int skb_prepare_for_shift(struct sk_buff *skb) { - return skb_cloned(skb) && pskb_expand_head(skb, 0, 0, GFP_ATOMIC); + int ret = 0; + + if (skb_cloned(skb)) { + /* Save and restore truesize: pskb_expand_head() may reallocate + * memory where ksize(kmalloc(S)) != ksize(kmalloc(S)), but we + * cannot change truesize at this point. + */ + unsigned int save_truesize = skb->truesize; + + ret = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); + skb->truesize = save_truesize; + } + return ret; } /** |