linux/kernel/relay.c, branch v2.6.26

splice: fix sendfile() issue with relay

2008-05-28T12:49:27Z

Splice isn't always incrementing the ppos correctly, which broke relay splice. Signed-off-by: Tom Zanussi Tested-by: Dan Williams Signed-off-by: Jens Axboe

Revert "relay: fix splice problem"

2008-05-08T12:06:19Z

This reverts commit c3270e577c18b3d0e984c3371493205a4807db9d.

Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

2008-04-29T15:18:03Z

* 'for-linus' of git://git.kernel.dk/linux-2.6-block: block: Skip I/O merges when disabled block: add large command support block: replace sizeof(rq->cmd) with BLK_MAX_CDB ide: use blk_rq_init() to initialize the request block: use blk_rq_init() to initialize the request block: rename and export rq_init() block: no need to initialize rq->cmd with blk_get_request block: no need to initialize rq->cmd in prepare_flush_fn hook block/blk-barrier.c:blk_ordered_cur_seq() mustn't be inline block/elevator.c:elv_rq_merge_ok() mustn't be inline block: make queue flags non-atomic block: add dma alignment and padding support to blk_rq_map_kern unexport blk_max_pfn ps3disk: Remove superfluous cast block: make rq_init() do a full memset() relay: fix splice problem

relayfs: support larger relay buffer

2008-04-29T15:06:28Z

Use vmalloc() and memset() instead of kcalloc() to allocate a page* array when the array size is bigger than one page. This enables relayfs to support bigger relay buffers than 64MB on 4k-page system, 512MB on 16k-page system. [akpm@linux-foundation.org: cleanup] Signed-off-by: Masami Hiramatsu Cc: David Wilder Reviewed-by: Tom Zanussi Reviewed-by: Pekka Enberg Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

relay: fix splice problem

2008-04-29T07:48:15Z

Splice isn't always incrementing the ppos correctly, which broke relay splice. Signed-off-by: Tom Zanussi Signed-off-by: Jens Axboe

relay: set an spd_release() hook for splice

2008-03-26T11:04:09Z

relay doesn't reference the pages it adds, however we need a non-NULL hook or splice_to_pipe() can oops. Signed-off-by: Jens Axboe

set relay file can not be read by pread(2)

2008-03-26T11:01:28Z

I found that relay files can be read by pread(2). I fix it, for relay files are not capable of seeking. Signed-off-by: Lai Jiangshan Signed-off-by: Jens Axboe

relay: fix subbuf_splice_actor() adding too many pages

2008-03-17T08:04:59Z

If subbuf_pages was larger than the max number of pages the pipe buffer will hold, subbuf_splice_actor() would happily go beyond the array size. Signed-off-by: Jens Axboe

relay: nopage

2008-02-06T18:41:07Z

Convert relay from nopage to fault. Remove redundant vma range checks. Switch from OOM to SIGBUS if the resource is not available. Signed-off-by: Nick Piggin Cc: Tom Zanussi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

vm audit: add VM_DONTEXPAND to mmap for drivers that need it

2008-02-04T15:55:38Z

Drivers that register a ->fault handler, but do not range-check the offset argument, must set VM_DONTEXPAND in the vm_flags in order to prevent an expanding mremap from overflowing the resource. I've audited the tree and attempted to fix these problems (usually by adding VM_DONTEXPAND where it is not obvious). Signed-off-by: Nick Piggin Signed-off-by: Linus Torvalds