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| author | Shirley Ma <xma@us.ibm.com> | 2011-07-09 02:55:27 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-07-09 02:55:27 -0700 |
| commit | a48332f803093d5e3d431a5a1f595698911d1145 (patch) | |
| tree | c493ee69295c8a282e4a69a34cb86131e9f63ff5 /net | |
| parent | a05e42c27f80d341a5ec2053b041e24231a002e2 (diff) | |
| download | linux-a48332f803093d5e3d431a5a1f595698911d1145.tar.gz linux-a48332f803093d5e3d431a5a1f595698911d1145.tar.bz2 linux-a48332f803093d5e3d431a5a1f595698911d1145.zip | |
skbuff: clear tx zero-copy flag
This patch clears tx zero-copy flag as needed.
Signed-off-by: Shirley Ma <xma@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/skbuff.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c index a9577a2f3a43..d220119f13ab 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -677,6 +677,7 @@ struct sk_buff *skb_clone(struct sk_buff *skb, gfp_t gfp_mask) if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY) { if (skb_copy_ubufs(skb, gfp_mask)) return NULL; + skb_shinfo(skb)->tx_flags &= ~SKBTX_DEV_ZEROCOPY; } n = skb + 1; @@ -801,6 +802,7 @@ struct sk_buff *pskb_copy(struct sk_buff *skb, gfp_t gfp_mask) kfree(n); goto out; } + skb_shinfo(skb)->tx_flags &= ~SKBTX_DEV_ZEROCOPY; } for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { skb_shinfo(n)->frags[i] = skb_shinfo(skb)->frags[i]; @@ -893,6 +895,7 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail, if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY) { if (skb_copy_ubufs(skb, gfp_mask)) goto nofrags; + skb_shinfo(skb)->tx_flags &= ~SKBTX_DEV_ZEROCOPY; } for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) get_page(skb_shinfo(skb)->frags[i].page); |