WSL2-Linux-Kernel/include
Ilya Dryomov 0d9c1ab3be libceph: preallocate message data items
Currently message data items are allocated with ceph_msg_data_create()
in setup_request_data() inside send_request().  send_request() has never
been allowed to fail, so each allocation is followed by a BUG_ON:

  data = ceph_msg_data_create(...);
  BUG_ON(!data);

It's been this way since support for multiple message data items was
added in commit 6644ed7b7e ("libceph: make message data be a pointer")
in 3.10.

There is no reason to delay the allocation of message data items until
the last possible moment and we certainly don't need a linked list of
them as they are only ever appended to the end and never erased.  Make
ceph_msg_new2() take max_data_items and adapt the rest of the code.

Reported-by: Jerry Lee <leisurelysw24@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-10-22 10:28:22 +02:00
..
acpi
asm-generic vmlinux.lds.h: Fix linker warnings about orphan .LPBX sections 2018-10-12 08:55:29 +11:00
clocksource
crypto
drm drm: Get ref on CRTC commit object when waiting for flip_done 2018-10-18 14:23:13 -04:00
dt-bindings ARM: SoC: late updates 2018-08-25 14:12:36 -07:00
keys
kvm
linux libceph: preallocate message data items 2018-10-22 10:28:22 +02:00
math-emu
media media: v4l: event: Prevent freeing event subscriptions while accessed 2018-10-03 06:32:51 -04:00
memory
misc
net sctp: fix the data size calculation in sctp_data_size 2018-10-17 22:32:21 -07:00
pcmcia pcmcia: remove long deprecated pcmcia_request_exclusive_irq() function 2018-08-18 12:30:42 -07:00
ras
rdma Second merge window update 2018-08-23 15:34:48 -07:00
scsi SCSI misc on 20180815 2018-08-15 22:06:26 -07:00
soc soc: fsl: qbman: add APIs to retrieve the probing status 2018-09-27 15:43:35 -05:00
sound ASoC: Fixes for v4.19 2018-09-17 18:59:21 +02:00
target
trace RxRPC fixes 2018-10-10 22:27:38 -07:00
uapi sctp: get pr_assoc and pr_stream all status with SCTP_PR_SCTP_ALL instead 2018-10-16 09:58:49 -07:00
video fbdev changes for v4.19: 2018-08-23 15:44:58 -07:00
xen xen/balloon: add runtime control for scrubbing ballooned out pages 2018-09-14 08:51:10 -04:00