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| author | Eric Dumazet <edumazet@google.com> | 2022-06-20 12:05:09 +0200 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2022-06-21 11:38:29 +0200 |
| commit | af185d8c76333daa877678e0166a7b45e63bf3c4 (patch) | |
| tree | 0c3f2c0168c01595f1b17e34d9b4cd290a0e82c6 /net/ipv4/raw_diag.c | |
| parent | net: warn if mac header was not set (diff) | |
| download | linux-af185d8c76333daa877678e0166a7b45e63bf3c4.tar.xz linux-af185d8c76333daa877678e0166a7b45e63bf3c4.zip | |
raw: complete rcu conversion
raw_diag_dump() can use rcu_read_lock() instead of read_lock()
Now the hashinfo lock is only used from process context,
in write mode only, we can convert it to a spinlock,
and we do not need to block BH anymore.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20220620100509.3493504-1-eric.dumazet@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/ipv4/raw_diag.c')
| -rw-r--r-- | net/ipv4/raw_diag.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/raw_diag.c b/net/ipv4/raw_diag.c index ac4b6525d3c6..999321834b94 100644 --- a/net/ipv4/raw_diag.c +++ b/net/ipv4/raw_diag.c @@ -156,7 +156,7 @@ static void raw_diag_dump(struct sk_buff *skb, struct netlink_callback *cb, s_slot = cb->args[0]; num = s_num = cb->args[1]; - read_lock(&hashinfo->lock); + rcu_read_lock(); for (slot = s_slot; slot < RAW_HTABLE_SIZE; s_num = 0, slot++) { num = 0; @@ -184,7 +184,7 @@ next: } out_unlock: - read_unlock(&hashinfo->lock); + rcu_read_unlock(); cb->args[0] = slot; cb->args[1] = num; |