linux/net/ceph, branch v3.12.10

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

2013-09-19T17:50:37Z

Pull ceph fixes from Sage Weil: "These fix several bugs with RBD from 3.11 that didn't get tested in time for the merge window: some error handling, a use-after-free, and a sequencing issue when unmapping and image races with a notify operation. There is also a patch fixing a problem with the new ceph + fscache code that just went in" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: fscache: check consistency does not decrement refcount rbd: fix error handling from rbd_snap_name() rbd: ignore unmapped snapshots that no longer exist rbd: fix use-after free of rbd_dev->disk rbd: make rbd_obj_notify_ack() synchronous rbd: complete notifies before cleaning up osd_client and rbd_dev libceph: add function to ensure notifies are complete

libceph: add function to ensure notifies are complete

2013-09-09T18:15:49Z

Without a way to flush the osd client's notify workqueue, a watch event that is unregistered could continue receiving callbacks indefinitely. Unregistering the event simply means no new notifies are added to the queue, but there may still be events in the queue that will call the watch callback for the event. If the queue is flushed after the event is unregistered, the caller can be sure no more watch callbacks will occur for the canceled watch. Signed-off-by: Josh Durgin Reviewed-by: Sage Weil Reviewed-by: Alex Elder

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

2013-09-09T16:13:22Z

Pull ceph updates from Sage Weil: "This includes both the first pile of Ceph patches (which I sent to torvalds@vger, sigh) and a few new patches that add support for fscache for Ceph. That includes a few fscache core fixes that David Howells asked go through the Ceph tree. (Thanks go to Milosz Tanski for putting this feature together) This first batch of patches (included here) had (has) several important RBD bug fixes, hole punch support, several different cleanups in the page cache interactions, improvements in the truncate code (new truncate mutex to avoid shenanigans with i_mutex), and a series of fixes in the synchronous striping read/write code. On top of that is a random collection of small fixes all across the tree (error code checks and error path cleanup, obsolete wq flags, etc)" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (43 commits) ceph: use d_invalidate() to invalidate aliases ceph: remove ceph_lookup_inode() ceph: trivial buildbot warnings fix ceph: Do not do invalidate if the filesystem is mounted nofsc ceph: page still marked private_2 ceph: ceph_readpage_to_fscache didn't check if marked ceph: clean PgPrivate2 on returning from readpages ceph: use fscache as a local presisent cache fscache: Netfs function for cleanup post readpages FS-Cache: Fix heading in documentation CacheFiles: Implement interface to check cache consistency FS-Cache: Add interface to check consistency of a cached object rbd: fix null dereference in dout rbd: fix buffer size for writes to images with snapshots libceph: use pg_num_mask instead of pgp_num_mask for pg.seed calc rbd: fix I/O error propagation for reads ceph: use vfs __set_page_dirty_nobuffers interface instead of doing it inside filesystem ceph: allow sync_read/write return partial successed size of read/write. ceph: fix bugs about handling short-read for sync read mode. ceph: remove useless variable revoked_rdcache ...

libceph: use pg_num_mask instead of pgp_num_mask for pg.seed calc

2013-09-04T05:08:10Z

Fix a typo that used the wrong bitmask for the pg.seed calculation. This is normally unnoticed because in most cases pg_num == pgp_num. It is, however, a bug that is easily corrected. CC: stable@vger.kernel.org Signed-off-by: Sage Weil Reviewed-by: Alex Elder

libceph: create_singlethread_workqueue() doesn't return ERR_PTRs

2013-08-27T19:26:31Z

create_singlethread_workqueue() returns NULL on error, and it doesn't return ERR_PTRs. I tweaked the error handling a little to be consistent with earlier in the function. Signed-off-by: Dan Carpenter Reviewed-by: Sage Weil

libceph: potential NULL dereference in ceph_osdc_handle_map()

2013-08-27T19:26:30Z

There are two places where we read "nr_maps" if both of them are set to zero then we would hit a NULL dereference here. Signed-off-by: Dan Carpenter Reviewed-by: Sage Weil

libceph: fix error handling in handle_reply()

2013-08-27T19:26:30Z

We've tried to fix the error paths in this function before, but there is still a hidden goto in the ceph_decode_need() macro which goes to the wrong place. We need to release the "req" and unlock a mutex before returning. Signed-off-by: Dan Carpenter Reviewed-by: Sage Weil

ceph: punch hole support

2013-08-15T18:12:17Z

This patch implements fallocate and punch hole support for Ceph kernel client. Signed-off-by: Li Wang Signed-off-by: Yunchuan Wen

ceph: WQ_NON_REENTRANT is meaningless and going away

2013-08-10T00:55:29Z

dbf2576e37 ("workqueue: make all workqueues non-reentrant") made WQ_NON_REENTRANT no-op and the flag is going away. Remove its usages. This patch doesn't introduce any behavior changes. Signed-off-by: Tejun Heo Reviewed-by: Sage Weil Cc: ceph-devel@vger.kernel.org

libceph: unregister request in __map_request failed and nofail == false

2013-08-10T00:52:06Z

For nofail == false request, if __map_request failed, the caller does cleanup work, like releasing the relative pages. It doesn't make any sense to retry this request. CC: stable@vger.kernel.org Signed-off-by: Jianpeng Ma Reviewed-by: Sage Weil