kernel.git/fs/ceph/file.c, branch linux-2.6.37.y

ceph: mark user pages dirty on direct-io reads

2010-12-17T17:54:40Z

For read operation, we have to set the argument _write_ of get_user_pages to 1 since we will write data to pages. Also, we need to SetPageDirty before releasing these pages. Signed-off-by: Henry C Chang Signed-off-by: Sage Weil

ceph: fix direct-io on non-page-aligned buffers

2010-12-16T04:46:16Z

The user buffer may be 512-byte aligned, not page-aligned. We were assuming the buffer was page-aligned and only accounting for non-page-aligned io offsets. Signed-off-by: Henry C Chang Signed-off-by: Sage Weil

ceph: make page alignment explicit in osd interface

2010-11-09T20:43:12Z

We used to infer alignment of IOs within a page based on the file offset, which assumed they matched. This broke with direct IO that was not aligned to pages (e.g., 512-byte aligned IO). We were also trusting the alignment specified in the OSD reply, which could have been adjusted by the server. Explicitly specify the page alignment when setting up OSD IO requests. Signed-off-by: Sage Weil

ceph: fix comment, remove extraneous args

2010-11-09T20:24:53Z

The offset/length arguments aren't used. Signed-off-by: Sage Weil

ceph: fix open for write on clustered mds

2010-11-07T17:07:15Z

Normally when we open a file we already have a cap, and simply update the wanted set. However, if we open a file for write, but don't have an auth cap, that doesn't work; we need to open a new cap with the auth MDS. Only reuse existing caps if we are opening for read or the existing cap is auth. Signed-off-by: Sage Weil

ceph: factor out libceph from Ceph file system

2010-10-20T22:37:28Z

This factors out protocol and low-level storage parts of ceph into a separate libceph module living in net/ceph and include/linux/ceph. This is mostly a matter of moving files around. However, a few key pieces of the interface change as well: - ceph_client becomes ceph_fs_client and ceph_client, where the latter captures the mon and osd clients, and the fs_client gets the mds client and file system specific pieces. - Mount option parsing and debugfs setup is correspondingly broken into two pieces. - The mon client gets a generic handler callback for otherwise unknown messages (mds map, in this case). - The basic supported/required feature bits can be expanded (and are by ceph_fs_client). No functional change, aside from some subtle error handling cases that got cleaned up in the refactoring process. Signed-off-by: Sage Weil

ceph: fix list_add usage on unsafe_writes list

2010-10-07T15:00:23Z

Fix argument order. Signed-off-by: Henry C Chang Signed-off-by: Sage Weil

ceph: whitespace cleanup

2010-08-03T17:25:11Z

Signed-off-by: Sage Weil

ceph: add flock/fcntl lock support

2010-08-02T23:10:53Z

Implement flock inode operation to support advisory file locking. All lock/unlock operations are synchronous with the MDS. Lock state is sent when reconnecting to a recovering MDS to restore the shared lock state. Signed-off-by: Greg Farnum Signed-off-by: Sage Weil

ceph: code cleanup

2010-08-02T03:11:40Z

Mainly fixing minor issues reported by sparse. Signed-off-by: Yehuda Sadeh Signed-off-by: Sage Weil