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| author | Matthew Wilcox | 2014-06-05 01:07:46 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2014-06-05 01:54:02 +0200 |
| commit | 47a191fd38ebddb1bd1510ec2bc1085c578c8868 (patch) | |
| tree | 5c65289e7195f4ecd445b2b55e8d44cfa7e7ea00 /mm/page_io.c | |
| parent | fs/mpage.c: factor page_endio() out of mpage_end_io() (diff) | |
| download | kernel-qcow2-linux-47a191fd38ebddb1bd1510ec2bc1085c578c8868.tar.gz kernel-qcow2-linux-47a191fd38ebddb1bd1510ec2bc1085c578c8868.tar.xz kernel-qcow2-linux-47a191fd38ebddb1bd1510ec2bc1085c578c8868.zip | |
fs/block_dev.c: add bdev_read_page() and bdev_write_page()
A block device driver may choose to provide a rw_page operation. These
will be called when the filesystem is attempting to do page sized I/O to
page cache pages (ie not for direct I/O). This does preclude I/Os that
are larger than page size, so this may only be a performance gain for
some devices.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Tested-by: Dheeraj Reddy <dheeraj.reddy@intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_io.c')
0 files changed, 0 insertions, 0 deletions