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* ceph: document ioctlsSage Weil2011-10-251-1/+54
| | | | | | ...after some prodding by Christoph. Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: add F_SYNC file flag to force sync (non-O_DIRECT) ioSage Weil2011-07-261-0/+1
| | | | | | | | | | This allows us to force IO through the sync path which you normally only get when multiple clients are reading/writing to the same file or by mounting with -o sync. Among other things, this lets test programs verify correctness with a single mount. Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: fix ioctl magicSage Weil2010-12-061-1/+1
| | | | | | The ioctl magic was inadvertently changed in 571dba52. Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: add CEPH_MDS_OP_SETDIRLAYOUT and associated ioctl.Greg Farnum2010-10-201-1/+3
| | | | Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: add LAZYIO ioctl to mark a file description for lazy consistencySage Weil2010-08-011-0/+2
| | | | | | | | 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>
* ceph: allow preferred osd to be get/set via layout ioctlSage Weil2009-12-031-0/+1
| | | | | | | | | There is certainly no reason not to report this. The only real downside to allowing the user to set it is that you don't get default values by zeroing the layout struct (the default is -1). Signed-off-by: Sage Weil <sage@newdream.net>
* ceph: ioctlsSage Weil2009-10-061-0/+39
A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
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