- 26 1月, 2014 1 次提交
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由 Ilya Dryomov 提交于
Encapsulate kmalloc vs vmalloc memory allocation and freeing logic into two helpers, ceph_kvmalloc() and ceph_kvfree(), and switch to them. ceph_kvmalloc() kmalloc()'s a maximum of 8 pages, anything bigger is vmalloc()'ed with __GFP_HIGHMEM set. This changes the existing behaviour: - for buffers (ceph_buffer_new()), from trying to kmalloc() everything and using vmalloc() just as a fallback - for messages (ceph_msg_new()), from going to vmalloc() for anything bigger than a page - for messages (ceph_msg_new()), from disallowing vmalloc() to use high memory Signed-off-by: NIlya Dryomov <ilya.dryomov@inktank.com> Reviewed-by: NSage Weil <sage@inktank.com>
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- 01 1月, 2014 1 次提交
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由 Ilya Dryomov 提交于
In preparation for ceph_features.h update, change all features fields from unsigned int/u32 to u64. (ceph.git has ~40 feature bits at this point.) Signed-off-by: NIlya Dryomov <ilya.dryomov@inktank.com> Reviewed-by: NSage Weil <sage@inktank.com>
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- 03 5月, 2013 1 次提交
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由 Alex Elder 提交于
Create a slab cache to manage allocation of ceph_osdc_request structures. This resolves: http://tracker.ceph.com/issues/3926Signed-off-by: NAlex Elder <elder@inktank.com> Reviewed-by: NJosh Durgin <josh.durgin@inktank.com>
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- 27 2月, 2013 1 次提交
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由 Sage Weil 提交于
Support (and require) the PGID64, PGPOOL3, and OSDENC protocol features. These have been present in ceph.git since v0.42, Feb 2012. Require these features to simplify support; nobody is running older userspace. Note that the new request and reply encoding is still not in place, so the new code is not yet functional. Signed-off-by: NSage Weil <sage@inktank.com> Reviewed-by: NAlex Elder <elder@inktank.com>
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- 14 2月, 2013 2 次提交
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由 Alex Elder 提交于
Currently, if the OSD client finds an osd request has had a bio list attached to it, it drops a reference to it (or rather, to the first entry on that list) when the request is released. The code that added that reference (i.e., the rbd client) is therefore required to take an extra reference to that first bio structure. The osd client doesn't really do anything with the bio pointer other than transfer it from the osd request structure to outgoing (for writes) and ingoing (for reads) messages. So it really isn't the right place to be taking or dropping references. Furthermore, the rbd client already holds references to all bio structures it passes to the osd client, and holds them until the request is completed. So there's no need for this extra reference whatsoever. So remove the bio_put() call in ceph_osdc_release_request(), as well as its matching bio_get() call in rbd_osd_req_create(). This change could lead to a crash if old libceph.ko was used with new rbd.ko. Add a compatibility check at rbd initialization time to avoid this possibilty. This resolves: http://tracker.ceph.com/issues/3798 and http://tracker.ceph.com/issues/3799Signed-off-by: NAlex Elder <elder@inktank.com> Reviewed-by: NJosh Durgin <josh.durgin@inktank.com>
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由 Alex Elder 提交于
An upcoming change implements semantic change that could lead to a crash if an old version of the libceph kernel module is used with a new version of the rbd kernel module. In order to preclude that possibility, this adds a compatibilty check interface. If this interface doesn't exist, the modules are obviously not compatible. But if it does exist, this provides a way of letting the caller know whether it will operate properly with this libceph module. Perhaps confusingly, it returns false right now. The semantic change mentioned above will make it return true. This resolves: http://tracker.ceph.com/issues/3800Signed-off-by: NAlex Elder <elder@inktank.com> Reviewed-by: NJosh Durgin <josh.durgin@inktank.com>
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- 12 2月, 2013 1 次提交
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由 Eric W. Biederman 提交于
Today ceph opens tcp sockets from a delayed work callback. Delayed work happens from kernel threads which are always in the initial network namespace. Therefore fail early if someone attempts to mount a ceph filesystem from something other than the initial network namespace. Cc: Sage Weil <sage@inktank.com> Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
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- 13 12月, 2012 1 次提交
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由 Sage Weil 提交于
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: NSage Weil <sage@inktank.com> Reviewed-by: NAlex Elder <elder@inktank.com>
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- 21 8月, 2012 1 次提交
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由 Sage Weil 提交于
The debugfs directory includes the cluster fsid and our unique global_id. We need to delay the initialization of the debug entry until we have learned both the fsid and our global_id from the monitor or else the second client can't create its debugfs entry and will fail (and multiple client instances aren't properly reflected in debugfs). Reported by: Yan, Zheng <zheng.z.yan@intel.com> Signed-off-by: NSage Weil <sage@inktank.com> Reviewed-by: NYehuda Sadeh <yehuda@inktank.com>
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- 31 7月, 2012 2 次提交
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由 Sage Weil 提交于
This is simply cleanup that will keep things more closely synced with the userland code. Signed-off-by: NSage Weil <sage@inktank.com> Reviewed-by: NAlex Elder <elder@inktank.com> Reviewed-by: NYehuda Sadeh <yehuda@inktank.com>
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由 Guanjun He 提交于
Add an atomic variable 'stopping' as flag in struct ceph_messenger, set this flag to 1 in function ceph_destroy_client(), and add the condition code in function ceph_data_ready() to test the flag value, if true(1), just return. Signed-off-by: NGuanjun He <gjhe@suse.com> Reviewed-by: NSage Weil <sage@inktank.com>
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- 20 6月, 2012 1 次提交
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由 Sage Weil 提交于
We need to flush the msgr workqueue during mon_client shutdown to ensure that any work affecting our embedded ceph_connection is finished so that we can be safely destroyed. Previously, we were flushing the work queue after osd_client shutdown and before mon_client shutdown to ensure that any osd connection refs to authorizers are flushed. Remove the redundant flush, and document in the comment that the mon_client flush is needed to cover that case as well. Signed-off-by: NSage Weil <sage@inktank.com> Reviewed-by: NAlex Elder <elder@inktank.com> (cherry picked from commit f3dea7ed)
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- 16 6月, 2012 1 次提交
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由 Sage Weil 提交于
We need to flush the msgr workqueue during mon_client shutdown to ensure that any work affecting our embedded ceph_connection is finished so that we can be safely destroyed. Previously, we were flushing the work queue after osd_client shutdown and before mon_client shutdown to ensure that any osd connection refs to authorizers are flushed. Remove the redundant flush, and document in the comment that the mon_client flush is needed to cover that case as well. Signed-off-by: NSage Weil <sage@inktank.com> Reviewed-by: NAlex Elder <elder@inktank.com>
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- 01 6月, 2012 1 次提交
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由 Alex Elder 提交于
A ceph client has a pointer to a ceph messenger structure in it. There is always exactly one ceph messenger for a ceph client, so there is no need to allocate it separate from the ceph client structure. Switch the ceph_client structure to embed its ceph_messenger structure. Signed-off-by: NAlex Elder <elder@inktank.com> Reviewed-by: NYehuda Sadeh <yehuda@inktank.com> Reviewed-by: NSage Weil <sage@inktank.com>
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- 16 4月, 2012 1 次提交
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由 Eric Dumazet 提交于
Use of "unsigned int" is preferred to bare "unsigned" in net tree. Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 22 3月, 2012 2 次提交
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由 Alex Elder 提交于
Many ceph-related Boolean options offer the ability to both enable and disable a feature. For all those that don't offer this, add a new option so that they do. Note that ceph_show_options()--which reports mount options currently in effect--only reports the option if it is different from the default value. Signed-off-by: NAlex Elder <elder@dreamhost.com> Signed-off-by: NSage Weil <sage@newdream.net>
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由 Alex Elder 提交于
ceph_parse_options() takes the address of a pointer as an argument and uses it to return the address of an allocated structure if successful. With this interface is not evident at call sites that the pointer is always initialized. Change the interface to return the address instead (or a pointer-coded error code) to make the validity of the returned pointer obvious. Signed-off-by: NAlex Elder <elder@dreamhost.com> Signed-off-by: NSage Weil <sage@newdream.net>
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- 03 2月, 2012 1 次提交
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由 Sage Weil 提交于
Initializing debufs under monc->mutex introduces a lock dependency for sb->s_type->i_mutex_key, which (combined with several other dependencies) leads to an annoying lockdep warning. There's no particular reason to do the debugfs setup under this lock, so move it out. It used to be the case that our first monmap could come from the OSD; that is no longer the case with recent servers, so we will reliably set up the client entry during the initial authentication. We don't have to worry about racing with debugfs teardown by ceph_debugfs_client_cleanup() because ceph_destroy_client() calls ceph_msgr_flush() first, which will wait for the message dispatch work to complete (and the debugfs init to complete). Fixes: #1940 Signed-off-by: NSage Weil <sage@newdream.net>
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- 26 10月, 2011 1 次提交
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由 Sage Weil 提交于
This simplifies the init/shutdown paths, and makes client->msgr available during the rest of the setup process. Signed-off-by: NSage Weil <sage@newdream.net>
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- 17 9月, 2011 1 次提交
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由 Noah Watkins 提交于
ceph_destroy_options does not free opt->mon_addr that is allocated in ceph_parse_options. Signed-off-by: NNoah Watkins <noahwatkins@gmail.com> Signed-off-by: NSage Weil <sage@newdream.net>
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- 30 3月, 2011 3 次提交
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由 Tommi Virtanen 提交于
This allows us to use existence of the key type as a feature test, from userspace. Signed-off-by: NTommi Virtanen <tommi.virtanen@dreamhost.com> Signed-off-by: NSage Weil <sage@newdream.net>
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由 Tommi Virtanen 提交于
Signed-off-by: NTommi Virtanen <tommi.virtanen@dreamhost.com> Signed-off-by: NSage Weil <sage@newdream.net>
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由 Tommi Virtanen 提交于
This makes the base64 logic be contained in mount option parsing, and prepares us for replacing the homebew key management with the kernel key retention service. Signed-off-by: NTommi Virtanen <tommi.virtanen@dreamhost.com> Signed-off-by: NSage Weil <sage@newdream.net>
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- 26 3月, 2011 1 次提交
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由 Sage Weil 提交于
The release method for mds connections uses a backpointer to the mds_client, so we need to flush the workqueue of any pending work (and ceph_connection references) prior to freeing the mds_client. This fixes an oops easily triggered under UML by while true ; do mount ... ; umount ... ; done Also fix an outdated comment: the flush in ceph_destroy_client only flushes OSD connections out. This bug is basically an artifact of the ceph -> ceph+libceph conversion. Signed-off-by: NSage Weil <sage@newdream.net>
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- 23 3月, 2011 1 次提交
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由 Yehuda Sadeh 提交于
Lingering requests are requests that are sent to the OSD normally but tracked also after we get a successful request. This keeps the OSD connection open and resends the original request if the object moves to another OSD. The OSD can then send notification messages back to us if another client initiates a notify. This framework will be used by RBD so that the client gets notification when a snapshot is created by another node or tool. Signed-off-by: NYehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: NSage Weil <sage@newdream.net>
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- 21 10月, 2010 2 次提交
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由 Yehuda Sadeh 提交于
This only happened when parse_extra_token was not passed to ceph_parse_option() (hence, only happened in rbd). Signed-off-by: NYehuda Sadeh <yehuda@hq.newdream.net>
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由 Yehuda Sadeh 提交于
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: NSage Weil <sage@newdream.net>
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