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| author | Kent Overstreet <kent.overstreet@gmail.com> | 2019-03-12 09:31:22 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-12 20:04:02 +0300 |
| commit | 2075e50caf5ea28be3cba0d01b3058bb5c3b0168 (patch) | |
| tree | 67dcfce1a110f46f2c796fb802f036053b850248 /include | |
| parent | 94f8f3b02e1ee0418b5cc9352626cdc2b6bd4299 (diff) | |
| download | linux-2075e50caf5ea28be3cba0d01b3058bb5c3b0168.tar.xz | |
sctp: convert to genradix
This also makes sctp_stream_alloc_(out|in) saner, in that they no longer
allocate new flex_arrays/genradixes, they just preallocate more
elements.
This code does however have a suspicious lack of locking.
Link: http://lkml.kernel.org/r/20181217131929.11727-7-kent.overstreet@gmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Cc: Vlad Yasevich <vyasevich@gmail.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Eric Paris <eparis@parisplace.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Paul Moore <paul@paul-moore.com>
Cc: Pravin B Shelar <pshelar@ovn.org>
Cc: Shaohua Li <shli@kernel.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/sctp/structs.h | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 58e4b23cecf4..140fd836a396 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -48,6 +48,7 @@ #define __sctp_structs_h__ #include <linux/ktime.h> +#include <linux/generic-radix-tree.h> #include <linux/rhashtable-types.h> #include <linux/socket.h> /* linux/in.h needs this!! */ #include <linux/in.h> /* We get struct sockaddr_in. */ @@ -57,7 +58,6 @@ #include <linux/atomic.h> /* This gets us atomic counters. */ #include <linux/skbuff.h> /* We need sk_buff_head. */ #include <linux/workqueue.h> /* We need tq_struct. */ -#include <linux/flex_array.h> /* We need flex_array. */ #include <linux/sctp.h> /* We need sctp* header structs. */ #include <net/sctp/auth.h> /* We need auth specific structs */ #include <net/ip.h> /* For inet_skb_parm */ @@ -1449,8 +1449,9 @@ struct sctp_stream_in { }; struct sctp_stream { - struct flex_array *out; - struct flex_array *in; + GENRADIX(struct sctp_stream_out) out; + GENRADIX(struct sctp_stream_in) in; + __u16 outcnt; __u16 incnt; /* Current stream being sent, if any */ @@ -1473,17 +1474,17 @@ struct sctp_stream { }; static inline struct sctp_stream_out *sctp_stream_out( - const struct sctp_stream *stream, + struct sctp_stream *stream, __u16 sid) { - return flex_array_get(stream->out, sid); + return genradix_ptr(&stream->out, sid); } static inline struct sctp_stream_in *sctp_stream_in( - const struct sctp_stream *stream, + struct sctp_stream *stream, __u16 sid) { - return flex_array_get(stream->in, sid); + return genradix_ptr(&stream->in, sid); } #define SCTP_SO(s, i) sctp_stream_out((s), (i)) |