user/sven/linux.git/include/linux/ceph, branch v3.12.13

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

libceph: fix invalid unsigned->signed conversion for timespec encoding

2013-07-09T19:18:06Z

__kernel_time_t is a long, which cannot hold a U32_MAX on 32-bit architectures. Just drop this check as it has limited value. This fixes a crash like: [ 957.905812] kernel BUG at /srv/autobuild-ceph/gitbuilder.git/build/include/linux/ceph/decode.h:164! [ 957.914849] Internal error: Oops - BUG: 0 [#1] SMP ARM [ 957.919978] Modules linked in: rbd libceph libcrc32c ipmi_devintf ipmi_si ipmi_msghandler nfsd nfs_acl auth_rpcgss nfs fscache lockd sunrpc [ 957.932547] CPU: 1 Tainted: G W (3.9.0-ceph-19bb6a83-highbank #1) [ 957.939881] PC is at ceph_osdc_build_request+0x8c/0x4f8 [libceph] [ 957.945967] LR is at 0xec520904 [ 957.949103] pc : [] lr : [] psr: 20000153 [ 957.949103] sp : ec753df8 ip : 00000001 fp : ec53e100 [ 957.960571] r10: ebef25c0 r9 : ec5fa400 r8 : ecbcc000 [ 957.965788] r7 : 00000000 r6 : 00000000 r5 : ffffffff r4 : 00000020 [ 957.972307] r3 : 51cc8143 r2 : ec520900 r1 : ec753e58 r0 : ec520908 [ 957.978827] Flags: nzCv IRQs on FIQs off Mode SVC_32 ISA ARM Segment user [ 957.986039] Control: 10c5387d Table: 2c59c04a DAC: 00000015 [ 957.991777] Process rbd (pid: 2138, stack limit = 0xec752238) [ 957.997514] Stack: (0xec753df8 to 0xec754000) [ 958.001864] 3de0: 00000001 00000001 [ 958.010032] 3e00: 00000001 bf139744 ecbcc000 ec55a0a0 00000024 00000000 ebef25c0 fffffffe [ 958.018204] 3e20: ffffffff 00000000 00000000 00000001 ec5fa400 ebef25c0 ec53e100 bf166b68 [ 958.026377] 3e40: 00000000 0000220f fffffffe ffffffff ec753e58 bf13ff24 51cc8143 05b25ed2 [ 958.034548] 3e60: 00000001 00000000 00000000 bf1688d4 00000001 00000000 00000000 00000000 [ 958.042720] 3e80: 00000001 00000060 ec5fa400 ed53d200 ed439600 ed439300 00000001 00000060 [ 958.050888] 3ea0: ec5fa400 ed53d200 00000000 bf16a320 00000000 ec53e100 00000040 ec753eb8 [ 958.059059] 3ec0: ec51df00 ed53d7c0 ed53d200 ed53d7c0 00000000 ed53d7c0 ec5fa400 bf16ed70 [ 958.067230] 3ee0: 00000000 00000060 00000002 ed53d200 00000000 bf16acf4 ed53d7c0 ec752000 [ 958.075402] 3f00: ed980e50 e954f5d8 00000000 00000060 ed53d240 ed53d258 ec753f80 c04f44a8 [ 958.083574] 3f20: edb7910c ec664700 01ade920 c02e4c44 00000060 c016b3dc ec51de40 01adfb84 [ 958.091745] 3f40: 00000060 ec752000 ec753f80 ec752000 00000060 c0108444 00000007 ec51de48 [ 958.099914] 3f60: ed0eb8c0 00000000 00000000 ec51de40 01adfb84 00000001 00000060 c0108858 [ 958.108085] 3f80: 00000000 00000000 51cc8143 00000060 01adfb84 00000007 00000004 c000dd68 [ 958.116257] 3fa0: 00000000 c000dbc0 00000060 01adfb84 00000007 01adfb84 00000060 01adfb80 [ 958.124429] 3fc0: 00000060 01adfb84 00000007 00000004 beded1a8 00000000 01adf2f0 01ade920 [ 958.132599] 3fe0: 00000000 beded180 b6811324 b6811334 800f0010 00000007 2e7f5821 2e7f5c21 [ 958.140815] [] (ceph_osdc_build_request+0x8c/0x4f8 [libceph]) from [] (rbd_osd_req_format_write+0x50/0x7c [rbd]) [ 958.152739] [] (rbd_osd_req_format_write+0x50/0x7c [rbd]) from [] (rbd_dev_header_watch_sync+0xe0/0x204 [rbd]) [ 958.164486] [] (rbd_dev_header_watch_sync+0xe0/0x204 [rbd]) from [] (rbd_dev_image_probe+0x23c/0x850 [rbd]) [ 958.175967] [] (rbd_dev_image_probe+0x23c/0x850 [rbd]) from [] (rbd_add+0x3c0/0x918 [rbd]) [ 958.185975] [] (rbd_add+0x3c0/0x918 [rbd]) from [] (bus_attr_store+0x20/0x2c) [ 958.194850] [] (bus_attr_store+0x20/0x2c) from [] (sysfs_write_file+0x168/0x198) [ 958.203984] [] (sysfs_write_file+0x168/0x198) from [] (vfs_write+0x9c/0x170) [ 958.212768] [] (vfs_write+0x9c/0x170) from [] (sys_write+0x3c/0x70) [ 958.220768] [] (sys_write+0x3c/0x70) from [] (ret_fast_syscall+0x0/0x30) [ 958.229199] Code: e59d1058 e5913000 e3530000 ba000114 (e7f001f2) CC: stable@vger.kernel.org # 3.4+ Signed-off-by: Josh Durgin Reviewed-by: Sage Weil

libceph: fix safe completion

2013-07-03T22:32:44Z

handle_reply() calls complete_request() only if the first OSD reply has ONDISK flag. Signed-off-by: Yan, Zheng Reviewed-by: Sage Weil

libceph: use slab cache for osd client requests

2013-05-02T16:58:41Z

Create a slab cache to manage allocation of ceph_osdc_request structures. This resolves: http://tracker.ceph.com/issues/3926 Signed-off-by: Alex Elder Reviewed-by: Josh Durgin

libceph: create source file "net/ceph/snapshot.c"

2013-05-02T04:20:08Z

This creates a new source file "net/ceph/snapshot.c" to contain utility routines related to ceph snapshot contexts. The main motivation was to define ceph_create_snap_context() as a common way to create these structures, but I've moved the definitions of ceph_get_snap_context() and ceph_put_snap_context() there too. (The benefit of inlining those is very small, and I'd rather keep this collection of functions together.) Signed-off-by: Alex Elder Reviewed-by: Josh Durgin

libceph: validate timespec conversions

2013-05-02T04:19:17Z

A ceph timespec contains 32-bit unsigned values for its seconds and nanoseconds components. For a standard timespec, both fields are signed, and the seconds field is almost surely 64 bits. Add some explicit casts so the fact that this conversion is taking place is obvious. Also trip a bug if we ever try to put out of range (negative or too big) values into a ceph timespec. Signed-off-by: Alex Elder Reviewed-by: Josh Durgin

libceph: add signed type limits

2013-05-02T04:19:16Z

Flesh out the limits defined in to include the maximum and minimum values for signed type S8, S16, S32, and S64. Signed-off-by: Alex Elder Reviewed-by: Josh Durgin

libceph: support pages for class request data

2013-05-02T04:19:06Z

Add the ability to provide an array of pages as outbound request data for object class method calls. Signed-off-by: Alex Elder Reviewed-by: Josh Durgin

libceph: support raw data requests

2013-05-02T04:19:00Z

Allow osd request ops that aren't otherwise structured (not class, extent, or watch ops) to specify "raw" data to be used to hold incoming data for the op. Make use of this capability for the osd STAT op. Prefix the name of the private function osd_req_op_init() with "_", and expose a new function by that (earlier) name whose purpose is to initialize osd ops with (only) implied data. For now we'll just support the use of a page array for an osd op with incoming raw data. Signed-off-by: Alex Elder Reviewed-by: Josh Durgin

libceph: kill off osd data write_request parameters

2013-05-02T04:18:58Z

In the incremental move toward supporting distinct data items in an osd request some of the functions had "write_request" parameters to indicate, basically, whether the data belonged to in_data or the out_data. Now that we maintain the data fields in the op structure there is no need to indicate the direction, so get rid of the "write_request" parameters. Signed-off-by: Alex Elder Reviewed-by: Josh Durgin