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ipv4: fib: Add fib_info_hold() helper
As explained in the previous commit, modules are going to need to take a reference on fib info and then drop it using fib_info_put(). Add the fib_info_hold() helper to make the code more readable and also symmetric with fib_info_put(). Signed-off-by: Ido Schimmel <idosch@mellanox.com> Suggested-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -397,6 +397,11 @@ static inline void fib_combine_itag(u32 *itag, const struct fib_result *res)
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void free_fib_info(struct fib_info *fi);
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static inline void fib_info_hold(struct fib_info *fi)
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{
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atomic_inc(&fi->fib_clntref);
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}
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static inline void fib_info_put(struct fib_info *fi)
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{
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if (atomic_dec_and_test(&fi->fib_clntref))
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