On 15.12, Thomas Graf wrote: > The patch also defers expansion and shrinking to a worker queue which > allows insertion and removal from atomic context. Insertions and > deletions may occur in parallel to it and are only held up briefly > while the particular bucket is linked or unzipped. > > Mutations of the bucket table pointer is protected by a new mutex, read > access is RCU protected. > > In the event of an expansion or shrinking, the new bucket table allocated > is exposed as a so called future table as soon as the resize process > starts. Lookups, deletions, and insertions will briefly use both tables. > The future table becomes the main table after an RCU grace period and > initial linking of the old to the new table was performed. Optimization > of the chains to make use of the new number of buckets follows only the > new table is in use. AFAICT nft_hash_walk() will miss new entries during this period. Am I missing anything here? -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
