pm24.git/include/linux/ceph, branch v3.8-rc5

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

2012-12-20T22:00:13Z

Pull Ceph update from Sage Weil: "There are a few different groups of commits here. The largest is Alex's ongoing work to enable the coming RBD features (cloning, striping). There is some cleanup in libceph that goes along with it. Cyril and David have fixed some problems with NFS reexport (leaking dentries and page locks), and there is a batch of patches from Yan fixing problems with the fs client when running against a clustered MDS. There are a few bug fixes mixed in for good measure, many of which will be going to the stable trees once they're upstream. My apologies for the late pull. There is still a gremlin in the rbd map/unmap code and I was hoping to include the fix for that as well, but we haven't been able to confirm the fix is correct yet; I'll send that in a separate pull once it's nailed down." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (68 commits) rbd: get rid of rbd_{get,put}_dev() libceph: register request before unregister linger libceph: don't use rb_init_node() in ceph_osdc_alloc_request() libceph: init event->node in ceph_osdc_create_event() libceph: init osd->o_node in create_osd() libceph: report connection fault with warning libceph: socket can close in any connection state rbd: don't use ENOTSUPP rbd: remove linger unconditionally rbd: get rid of RBD_MAX_SEG_NAME_LEN libceph: avoid using freed osd in __kick_osd_requests() ceph: don't reference req after put rbd: do not allow remove of mounted-on image libceph: Unlock unprocessed pages in start_read() error path ceph: call handle_cap_grant() for cap import message ceph: Fix __ceph_do_pending_vmtruncate ceph: Don't add dirty inode to dirty list if caps is in migration ceph: Fix infinite loop in __wake_requests ceph: Don't update i_max_size when handling non-auth cap bdi_register: add __printf verification, fix arg mismatch ...

libceph: remove 'osdtimeout' option

2012-12-13T14:13:06Z

This would reset a connection with any OSD that had an outstanding request that was taking more than N seconds. The idea was that if the OSD was buggy, the client could compensate by resending the request. In reality, this only served to hide server bugs, and we haven't actually seen such a bug in quite a while. Moreover, the userspace client code never did this. More importantly, often the request is taking a long time because the OSD is trying to recover, or overloaded, and killing the connection and retrying would only make the situation worse by giving the OSD more work to do. Signed-off-by: Sage Weil Reviewed-by: Alex Elder

libceph: define ceph_pg_pool_name_by_id()

2012-11-01T12:55:42Z

Define and export function ceph_pg_pool_name_by_id() to supply the name of a pg pool whose id is given. This will be used by the next patch. Signed-off-by: Alex Elder Reviewed-by: Josh Durgin

rbd: get parent spec for version 2 images

2012-11-01T12:55:42Z

Add support for getting the the information identifying the parent image for rbd images that have them. The child image holds a reference to its parent image specification structure. Create a new entry "parent" in /sys/bus/rbd/image/N/ to report the identifying information for the parent image, if any. Signed-off-by: Alex Elder Reviewed-by: Josh Durgin

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

2012-10-07T21:38:18Z

Pull ceph updates from Sage Weil: "The bulk of this pull is a series from Alex that refactors and cleans up the RBD code to lay the groundwork for supporting the new image format and evolving feature set. There are also some cleanups in libceph, and for ceph there's fixed validation of file striping layouts and a bugfix in the code handling a shrinking MDS cluster." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (71 commits) ceph: avoid 32-bit page index overflow ceph: return EIO on invalid layout on GET_DATALOC ioctl rbd: BUG on invalid layout ceph: propagate layout error on osd request creation libceph: check for invalid mapping ceph: convert to use le32_add_cpu() ceph: Fix oops when handling mdsmap that decreases max_mds rbd: update remaining header fields for v2 rbd: get snapshot name for a v2 image rbd: get the snapshot context for a v2 image rbd: get image features for a v2 image rbd: get the object prefix for a v2 rbd image rbd: add code to get the size of a v2 rbd image rbd: lay out header probe infrastructure rbd: encapsulate code that gets snapshot info rbd: add an rbd features field rbd: don't use index in __rbd_add_snap_dev() rbd: kill create_snap sysfs entry rbd: define rbd_dev_image_id() rbd: define some new format constants ...

UAPI: (Scripted) Convert #include "..." to #include in kernel system headers

2012-10-02T17:01:25Z

Convert #include "..." to #include in kernel system headers. Signed-off-by: David Howells Acked-by: Arnd Bergmann Acked-by: Thomas Gleixner Acked-by: Paul E. McKenney Acked-by: Dave Jones

libceph: check for invalid mapping

2012-10-01T22:20:00Z

If we encounter an invalid (e.g., zeroed) mapping, return an error and avoid a divide by zero. Signed-off-by: Sage Weil Reviewed-by: Alex Elder

libceph: remove unused monc->have_fsid

2012-10-01T19:30:49Z

This is unused; use monc->client->have_fsid. Signed-off-by: Sage Weil

libceph: clean up con flags

2012-07-31T01:16:01Z

Rename flags with CON_FLAG prefix, move the definitions into the c file, and (better) document their meaning. Signed-off-by: Sage Weil

libceph: replace connection state bits with states

2012-07-31T01:16:00Z

Use a simple set of 6 enumerated values for the socket states (CON_STATE_*) and use those instead of the state bits. All of the con->state checks are now under the protection of the con mutex, so this is safe. It also simplifies many of the state checks because we can check for anything other than the expected state instead of various bits for races we can think of. This appears to hold up well to stress testing both with and without socket failure injection on the server side. Signed-off-by: Sage Weil