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Alex Elder e5975c7c8e ceph: build osd request message later for writepages 
Hold off building the osd request message in ceph_writepages_start()
until just before it will be submitted to the osd client for
execution.

We'll still create the request and allocate the page pointer array
after we learn we have at least one page to write.  A local variable
will be used to keep track of the allocated array of pages.  Wait
until just before submitting the request for assigning that page
array pointer to the request message.

Create ands use a new function osd_req_op_extent_update() whose
purpose is to serve this one spot where the length value supplied
when an osd request's op was initially formatted might need to get
changed (reduced, never increased) before submitting the request.

Previously, ceph_writepages_start() assigned the message header's
data length because of this update.  That's no longer necessary,
because ceph_osdc_build_request() will recalculate the right
value to use based on the content of the ops in the request.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
 		2013-05-01 21:18:02 -07:00
..
9p Revert parts of "hlist: drop the node parameter from iterators" 2013-03-08 15:05:34 -08:00
802 net/802/mrp: fix possible race condition when calling mrp_pdu_queue() 2013-04-12 15:10:48 -04:00
8021q 8021q: fix a potential use-after-free 2013-03-24 17:27:28 -04:00
appletalk hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
atm atm: update msg_namelen in vcc_recvmsg() 2013-04-07 16:28:00 -04:00
ax25 ax25: fix info leak via msg_name in ax25_recvmsg() 2013-04-07 16:28:00 -04:00
batman-adv batman-adv: make is_my_mac() check for the current mesh only 2013-04-17 22:31:22 +02:00
bluetooth Bluetooth: SCO - Fix missing msg_namelen update in sco_sock_recvmsg() 2013-04-07 16:28:01 -04:00
bridge bridge: make user modified path cost sticky 2013-04-15 14:03:44 -04:00
caif caif: Fix missing msg_namelen update in caif_seqpkt_recvmsg() 2013-04-07 16:28:01 -04:00
can can: gw: use kmem_cache_free() instead of kfree() 2013-04-09 09:58:44 +02:00
ceph ceph: build osd request message later for writepages 2013-05-01 21:18:02 -07:00
core net: rate-limit warn-bad-offload splats. 2013-04-19 17:57:49 -04:00
dcb dcbnl: fix various netlink info leaks 2013-03-10 05:19:26 -04:00
dccp Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
decnet hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
dns_resolver Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2012-12-16 15:40:50 -08:00
dsa dsa: make dsa_switch_setup check for valid port names 2013-01-21 15:40:12 -05:00
ethernet net: split eth_mac_addr for better error handling 2013-01-21 14:07:44 -05:00
ieee802154 6lowpan: Fix endianness issue in is_addr_link_local(). 2013-03-10 16:49:35 -04:00
ipv4 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2013-04-19 14:24:47 -04:00
ipv6 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2013-04-19 14:24:47 -04:00
ipx hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
irda irda: small read past the end of array in debug code 2013-04-19 17:32:31 -04:00
iucv af_iucv: fix recvmsg by replacing skb_pull() function 2013-04-08 17:16:57 -04:00
key Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec 2013-03-27 14:07:04 -04:00
l2tp l2tp: fix info leak in l2tp_ip6_recvmsg() 2013-04-07 16:28:01 -04:00
lapb net/lapb: remove depends on CONFIG_EXPERIMENTAL 2013-01-11 11:40:01 -08:00
llc llc: Fix missing msg_namelen update in llc_ui_recvmsg() 2013-04-07 16:28:01 -04:00
mac80211 Merge branch 'for-john' of git://x-git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 2013-04-12 13:20:51 -04:00
mac802154 Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
netfilter netfilter: ipset: bitmap:ip,mac: fix listing with timeout 2013-04-18 23:40:41 +02:00
netlabel netlabel: fix build problems when CONFIG_IPV6=n 2013-03-08 11:33:51 -05:00
netlink genetlink: trigger BUG_ON if a group name is too long 2013-03-20 12:05:51 -04:00
netrom netrom: fix invalid use of sizeof in nr_recvmsg() 2013-04-08 22:49:23 -04:00
nfc NFC: llcp: fix info leaks via msg_name in llcp_sock_recvmsg() 2013-04-07 16:28:02 -04:00
openvswitch openvswitch: correct an invalid BUG_ON 2013-03-27 09:07:41 -07:00
packet hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
phonet hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
rds net/rds: zero last byte for strncpy 2013-03-08 00:35:44 -05:00
rfkill rfkill: don't use [delayed_]work_pending() 2012-12-28 13:40:16 -08:00
rose rose: fix info leak via msg_name in rose_recvmsg() 2013-04-07 16:28:02 -04:00
rxrpc Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
sched pkt_sched: fix error return code in fw_change_attrs() 2013-04-19 17:34:53 -04:00
sctp sctp: don't break the loop while meeting the active_path so as to find the matched transport 2013-03-13 10:09:55 -04:00
sunrpc NFS client bugfixes for Linux 3.9 2013-04-10 09:00:51 -07:00
tipc tipc: fix info leaks via msg_name in recv_msg/recv_stream 2013-04-07 16:28:02 -04:00
unix af_unix: If we don't care about credentials coallesce all messages 2013-04-05 00:49:13 -04:00
vmw_vsock VSOCK: Fix missing msg_namelen update in vsock_stream_recvmsg() 2013-04-07 16:28:02 -04:00
wimax
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wireless Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 2013-04-03 14:19:48 -04:00
x25 hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
xfrm Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec 2013-03-27 14:07:04 -04:00
Kconfig Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
Makefile VSOCK: Introduce VM Sockets 2013-02-10 19:41:08 -05:00
compat.c make get_file() return its argument 2012-09-26 21:10:25 -04:00
nonet.c
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socket.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
sysctl_net.c user_ns: get rid of duplicate code in net_ctl_permissions 2012-11-18 20:32:45 -05:00