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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-04-25 09:42:42 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-04-25 09:42:42 +0100 |
| commit | a126f7c41d80322b42ae0383ed3dcb17ee0296fc (patch) | |
| tree | 67f3605e72e01f7ec0b15af22d9d7b6ef8598b55 /net/sctp/tsnmap.c | |
| parent | 0098fc39e6d575f940487f09f303787efbc7a373 (diff) | |
| parent | a7eb7c6f9a657a01a8359edae31bbeacd18b072c (diff) | |
Merge branch 'mcpm' of git://git.linaro.org/people/nico/linux into devel-stable
Diffstat (limited to 'net/sctp/tsnmap.c')
| -rw-r--r-- | net/sctp/tsnmap.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/net/sctp/tsnmap.c b/net/sctp/tsnmap.c index 5f25e0c92c31..396c45174e5b 100644 --- a/net/sctp/tsnmap.c +++ b/net/sctp/tsnmap.c @@ -51,7 +51,7 @@ static void sctp_tsnmap_update(struct sctp_tsnmap *map); static void sctp_tsnmap_find_gap_ack(unsigned long *map, __u16 off, __u16 len, __u16 *start, __u16 *end); -static int sctp_tsnmap_grow(struct sctp_tsnmap *map, u16 gap); +static int sctp_tsnmap_grow(struct sctp_tsnmap *map, u16 size); /* Initialize a block of memory as a tsnmap. */ struct sctp_tsnmap *sctp_tsnmap_init(struct sctp_tsnmap *map, __u16 len, @@ -124,7 +124,7 @@ int sctp_tsnmap_mark(struct sctp_tsnmap *map, __u32 tsn, gap = tsn - map->base_tsn; - if (gap >= map->len && !sctp_tsnmap_grow(map, gap)) + if (gap >= map->len && !sctp_tsnmap_grow(map, gap + 1)) return -ENOMEM; if (!sctp_tsnmap_has_gap(map) && gap == 0) { @@ -360,23 +360,24 @@ __u16 sctp_tsnmap_num_gabs(struct sctp_tsnmap *map, return ngaps; } -static int sctp_tsnmap_grow(struct sctp_tsnmap *map, u16 gap) +static int sctp_tsnmap_grow(struct sctp_tsnmap *map, u16 size) { unsigned long *new; unsigned long inc; u16 len; - if (gap >= SCTP_TSN_MAP_SIZE) + if (size > SCTP_TSN_MAP_SIZE) return 0; - inc = ALIGN((gap - map->len),BITS_PER_LONG) + SCTP_TSN_MAP_INCREMENT; + inc = ALIGN((size - map->len), BITS_PER_LONG) + SCTP_TSN_MAP_INCREMENT; len = min_t(u16, map->len + inc, SCTP_TSN_MAP_SIZE); new = kzalloc(len>>3, GFP_ATOMIC); if (!new) return 0; - bitmap_copy(new, map->tsn_map, map->max_tsn_seen - map->base_tsn); + bitmap_copy(new, map->tsn_map, + map->max_tsn_seen - map->cumulative_tsn_ack_point); kfree(map->tsn_map); map->tsn_map = new; map->len = len; |