user/sven/linux.git/fs/ceph/addr.c, branch v3.0.76

ceph: use ihold when we already have an inode ref

2011-06-08T04:34:11Z

We should use ihold whenever we already have a stable inode ref, even when we aren't holding i_lock. This avoids adding new and unnecessary locking dependencies. Signed-off-by: Sage Weil

ceph: check return value for start_request in writepages

2011-05-19T18:25:05Z

Since we pass the nofail arg, we should never get an error; BUG if we do. (And fix the function to not return an error if __map_request fails.) Signed-off-by: Sage Weil

ceph: remove useless check

2011-05-19T18:25:05Z

rc is only ever 0 or negative in this method. Signed-off-by: Sage Weil

ceph: handle ceph_osdc_new_request failure in ceph_writepages_start

2011-05-03T16:28:12Z

We should unlock the page and return -ENOMEM if ceph_osdc_new_request failed. Signed-off-by: Henry C Chang Signed-off-by: Sage Weil

Fix common misspellings

2011-03-31T14:26:23Z

Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi

fs: don't use igrab() while holding i_lock

2011-03-29T14:50:34Z

Fix the incorrect use of igrab() inside the i_lock in NFS and Ceph‥ If we are already holding the i_lock, we have a reference to the inode so we can safely use ihold() to gain an extra reference. This avoids hangs due to lock recursion on the i_lock now that the inode_lock is gone and igrab() uses the i_lock itself. Signed-off-by: Dave Chinner Cc: Al Viro Cc: linux-fsdevel@vger.kernel.org Cc: Ryan Mallon Signed-off-by: Linus Torvalds

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

2010-11-19T23:32:22Z

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: ceph: fix readdir EOVERFLOW on 32-bit archs ceph: fix frag offset for non-leftmost frags ceph: fix dangling pointer ceph: explicitly specify page alignment in network messages ceph: make page alignment explicit in osd interface ceph: fix comment, remove extraneous args ceph: fix update of ctime from MDS ceph: fix version check on racing inode updates ceph: fix uid/gid on resent mds requests ceph: fix rdcache_gen usage and invalidate ceph: re-request max_size if cap auth changes ceph: only let auth caps update max_size ceph: fix open for write on clustered mds ceph: fix bad pointer dereference in ceph_fill_trace ceph: fix small seq message skipping Revert "ceph: update issue_seq on cap grant"

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

writeback: remove nonblocking/encountered_congestion references

2010-10-26T23:52:05Z

This removes more dead code that was somehow missed by commit 0d99519efef (writeback: remove unused nonblocking and congestion checks). There are no behavior change except for the removal of two entries from one of the ext4 tracing interface. The nonblocking checks in ->writepages are no longer used because the flusher now prefer to block on get_request_wait() than to skip inodes on IO congestion. The latter will lead to more seeky IO. The nonblocking checks in ->writepage are no longer used because it's redundant with the WB_SYNC_NONE check. We no long set ->nonblocking in VM page out and page migration, because a) it's effectively redundant with WB_SYNC_NONE in current code b) it's old semantic of "Don't get stuck on request queues" is mis-behavior: that would skip some dirty inodes on congestion and page out others, which is unfair in terms of LRU age. Inspired by Christoph Hellwig. Thanks! Signed-off-by: Wu Fengguang Cc: Theodore Ts'o Cc: David Howells Cc: Sage Weil Cc: Steve French Cc: Chris Mason Cc: Jens Axboe Cc: Christoph Hellwig Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

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