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| author |   Sage Weil <sage@newdream.net> | 2010-04-16 09:53:43 -0700 |
|---|---|---|
| committer | Sage Weil <sage@newdream.net> | 2010-08-01 20:11:39 -0700 |
| commit | 8c6e9229fc1989cf263a6fcd4ff406d7f473f966 (patch) | |
| tree | 6402204aae50b0590df39289ed1e533472ee6ca1 /fs/ceph/ioctl.h | |
| parent | ceph: request FILE_LAZYIO cap when LAZY file mode is set (diff) | |
| download | linux-dev-8c6e9229fc1989cf263a6fcd4ff406d7f473f966.tar.xz linux-dev-8c6e9229fc1989cf263a6fcd4ff406d7f473f966.zip | |
ceph: add LAZYIO ioctl to mark a file description for lazy consistency
Allow an application to mark a file descriptor for lazy file consistency
semantics, allowing buffered reads and writes when multiple clients are
accessing the same file.
Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'fs/ceph/ioctl.h')
| -rw-r--r-- | fs/ceph/ioctl.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ceph/ioctl.h b/fs/ceph/ioctl.h index 25e4f1a9d059..88451a3b6857 100644 --- a/fs/ceph/ioctl.h +++ b/fs/ceph/ioctl.h @@ -37,4 +37,6 @@ struct ceph_ioctl_dataloc { #define CEPH_IOC_GET_DATALOC _IOWR(CEPH_IOCTL_MAGIC, 3, \ struct ceph_ioctl_dataloc) +#define CEPH_IOC_LAZYIO _IO(CEPH_IOCTL_MAGIC, 4) + #endif |