diff options
| author | Andi Kleen <ak@linux.intel.com> | 2012-01-13 02:20:34 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-13 05:13:12 +0100 |
| commit | 87192a2a49c475cf322cb143e0fa63b0102d8567 (patch) | |
| tree | 70acf2fb1e4a9a3a62559ad9218278d2fb114599 /fs/direct-io.c | |
| parent | fs/direct-io.c: calculate fs_count correctly in get_more_blocks() (diff) | |
| download | linux-87192a2a49c475cf322cb143e0fa63b0102d8567.tar.xz linux-87192a2a49c475cf322cb143e0fa63b0102d8567.zip | |
vfs: cache request_queue in struct block_device
This makes it possible to get from the inode to the request_queue with one
less cache miss. Used in followon optimization.
The livetime of the pointer is the same as the gendisk.
This assumes that the queue will always stay the same in the gendisk while
it's visible to block_devices. I think that's safe correct?
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jeff Moyer <jmoyer@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions