This patch against v1.01.06 of the Linksys firmware fixed a problem of skbuff_head_cache constantly growing. Maybe this is related to the download limit of filesharing. This patch is already applied to my firmware. You can easily observe the patch by monitoring skbuff_head_cache.
Example:
Start of torrent download
$ more /proc/slabinfo | grep skbuff
skbuff_head_cache 360 740 192 20 1
after 1 hour extensive bittorrent
$ more /proc/slabinfo | grep skbuff
skbuff_head_cache 1241 901 192 20 1
again after 1 hour extensive bittorrent
$ more /proc/slabinfo | grep skbuff
skbuff_head_cache 1893 1241 192 20 1
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081203_skbuff.c_v01.01.06.diff md5sum=82ab16f066cdd82f4acb25bb9715ab3c |
26 K |
