diff options
| author | Chris Mason <chris.mason@oracle.com> | 2008-04-10 16:23:21 +0200 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 17:04:01 +0200 |
| commit | 16432985920f3c45af82da214e2498f3e2f9066b (patch) | |
| tree | ce05f57eefb1a6f5952c53205ec8a07e93d03b3c /fs/btrfs/volumes.h | |
| parent | Btrfs: Disable extra debugging checks on tree blocks (diff) | |
| download | linux-16432985920f3c45af82da214e2498f3e2f9066b.tar.xz linux-16432985920f3c45af82da214e2498f3e2f9066b.zip | |
Btrfs: Add O_DIRECT read and write (writes == buffered + cache flush)
This adds basic O_DIRECT read and write support. In the write case, we
just do a normal buffered write followed by a cache flush. O_DIRECT +
O_SYNC are required to trigger metadata syncs.
In the read case, there is a basic btrfs_get_block call for use by
the generic O_DIRECT code. This does honor multi-volume mapping rules
but it skips all checksumming.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/volumes.h')
0 files changed, 0 insertions, 0 deletions