user/sven/linux.git/include/linux/ceph/osdmap.h, branch v4.9.130

libceph: use BUG() instead of BUG_ON(1)

2017-03-15T02:02:51Z

commit d24cdcd3e40a6825135498e11c20c7976b9bf545 upstream. I ran into this compile warning, which is the result of BUG_ON(1) not always leading to the compiler treating the code path as unreachable: include/linux/ceph/osdmap.h: In function 'ceph_can_shift_osds': include/linux/ceph/osdmap.h:62:1: error: control reaches end of non-void function [-Werror=return-type] Using BUG() here avoids the warning. Signed-off-by: Arnd Bergmann Signed-off-by: Ilya Dryomov Cc: Heinrich Schuchardt Signed-off-by: Greg Kroah-Hartman

libceph: rados pool namespace support

2016-07-28T00:55:37Z

Add pool namesapce pointer to struct ceph_file_layout and struct ceph_object_locator. Pool namespace is used by when mapping object to PG, it's also used when composing OSD request. The namespace pointer in struct ceph_file_layout is RCU protected. So libceph can read namespace without taking lock. Signed-off-by: Yan, Zheng [idryomov@gmail.com: ceph_oloc_destroy(), misc minor changes] Signed-off-by: Ilya Dryomov

libceph: add an ONSTACK initializer for oids

2016-07-28T00:55:35Z

An on-stack oid in ceph_ioctl_get_dataloc() is not initialized, resulting in a WARN and a NULL pointer dereference later on. We will have more of these on-stack in the future, so fix it with a convenience macro. Fixes: d30291b985d1 ("libceph: variable-sized ceph_object_id") Signed-off-by: Ilya Dryomov

libceph: change ceph_osdmap_flag() to take osdc

2016-05-30T21:00:22Z

For the benefit of every single caller, take osdc instead of map. Also, now that osdc->osdmap can't ever be NULL, drop the check. Signed-off-by: Ilya Dryomov

ceph: make logical calculation functions return bool

2016-05-25T23:15:39Z

This patch makes serverl logical caculation functions return bool to improve readability due to these particular functions only using 0/1 as their return value. No functional change. Signed-off-by: Zhang Zhuoyu

libceph: handle_one_map()

2016-05-25T23:12:27Z

Separate osdmap handling from decoding and iterating over a bag of maps in a fresh MOSDMap message. This sets up the scene for the updated OSD client. Of particular importance here is the addition of pi->was_full, which can be used to answer "did this pool go full -> not-full in this map?". This is the key bit for supporting pool quotas. We won't be able to downgrade map_sem for much longer, so drop downgrade_write(). Signed-off-by: Ilya Dryomov

libceph: allocate dummy osdmap in ceph_osdc_init()

2016-05-25T22:36:29Z

This leads to a simpler osdmap handling code, particularly when dealing with pi->was_full, which is introduced in a later commit. Signed-off-by: Ilya Dryomov

libceph: introduce ceph_osd_request_target, calc_target()

2016-05-25T22:36:26Z

Introduce ceph_osd_request_target, containing all mapping-related fields of ceph_osd_request and calc_target() for calculating mappings and populating it. Signed-off-by: Ilya Dryomov

libceph: pi->min_size, pi->last_force_request_resend

2016-05-25T22:36:26Z

Add and decode pi->min_size and pi->last_force_request_resend. These are going to be used by calc_target(). Signed-off-by: Ilya Dryomov

libceph: make pgid_cmp() global

2016-05-25T22:36:25Z

calc_target() code is going to need to know how to compare PGs. Take lhs and rhs pgid by const * while at it. Signed-off-by: Ilya Dryomov