kernel_samsung_sm7125

jenna

History

Alex Elder c10ebbf55b libceph: init sent and completed when starting The rbd code has a need to be able to restart an osd request that has already been started and completed once before. This currently wouldn't work right because the osd client code assumes an osd request will be started exactly once Certain fields in a request are never cleared and this leads to trouble if you try to reuse it. Specifically, the r_sent, r_got_reply, and r_completed fields are never cleared. The r_sent field records the osd incarnation at the time the request was sent to that osd. If that's non-zero, the message won't get re-mapped to a target osd properly, and won't be put on the unsafe requests list the first time it's sent as it should. The r_got_reply field is used in handle_reply() to ensure the reply to a request is processed only once. And the r_completed field is used for lingering requests to avoid calling the callback function every time the osd client re-sends the request on behalf of its initiator. Each osd request passes through ceph_osdc_start_request() when responsibility for the request is handed over to the osd client for completion. We can safely zero these three fields there each time a request gets started. One last related change--clear the r_linger flag when a request is no longer registered as a linger request. This resolves: http://tracker.ceph.com/issues/5026 Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>		12 years ago
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crush	crush: avoid recursion if we have already collided	12 years ago
Kconfig	net/ceph: remove depends on CONFIG_EXPERIMENTAL	12 years ago
Makefile	libceph: create source file "net/ceph/snapshot.c"	12 years ago
armor.c	…
auth.c	libceph: wrap auth methods in a mutex	12 years ago
auth_none.c	…
auth_none.h	…
auth_x.c	libceph: wrap auth ops in wrapper functions	12 years ago
auth_x.h	libceph: add update_authorizer auth method	12 years ago
auth_x_protocol.h	…
buffer.c	…
ceph_common.c	libceph: use slab cache for osd client requests	12 years ago
ceph_fs.c	…
ceph_hash.c	…
ceph_strings.c	libceph: update ceph_osd_op_name()	12 years ago
crypto.c	libceph: eliminate sparse warnings	12 years ago
crypto.h	…
debugfs.c	libceph: keep source rather than message osd op array	12 years ago
messenger.c	libceph: allocate ceph message data with a slab allocator	12 years ago
mon_client.c	libceph: wrap auth ops in wrapper functions	12 years ago
msgpool.c	…
osd_client.c	libceph: init sent and completed when starting	12 years ago
osdmap.c	libceph: define ceph_decode_pgid() only once	12 years ago
pagelist.c	ceph: use list_move_tail instead of list_del/list_add_tail	13 years ago
pagevec.c	libceph: drop return value from page vector copy routines	12 years ago
snapshot.c	libceph: create source file "net/ceph/snapshot.c"	12 years ago