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Yan, Zheng 61c5d6bf70 libceph: call r_unsafe_callback when unsafe reply is received ... We can't use !req->r_sent to check if OSD request is sent for the first time, this is because __cancel_request() zeros req->r_sent when OSD map changes. Rather than adding a new variable to struct ceph_osd_request to indicate if it's sent for the first time, We can call the unsafe callback only when unsafe OSD reply is received. If OSD's first reply is safe, just skip calling the unsafe callback. The purpose of unsafe callback is adding unsafe request to a list, so that fsync(2) can wait for the safe reply. fsync(2) doesn't need to wait for a write(2) that hasn't returned yet. So it's OK to add request to the unsafe list when the first OSD reply is received. (ceph_sync_write() returns after receiving the first OSD reply) Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Reviewed-by: Sage Weil <sage@inktank.com>		12 years ago
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crush	…
Kconfig	…
Makefile	libceph: create source file "net/ceph/snapshot.c"	12 years ago
armor.c	…
auth.c	…
auth_none.c	libceph: Fix NULL pointer dereference in auth client code	12 years ago
auth_none.h	…
auth_x.c	…
auth_x.h	…
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	…
crypto.c	…
crypto.h	…
debugfs.c	…
messenger.c	libceph: allocate ceph message data with a slab allocator	12 years ago
mon_client.c	…
msgpool.c	…
osd_client.c	libceph: call r_unsafe_callback when unsafe reply is received	12 years ago
osdmap.c	…
pagelist.c	…
pagevec.c	…
snapshot.c	libceph: create source file "net/ceph/snapshot.c"	12 years ago