No need to walk up the directories if we need
to include protobuf file. This was always a bad
use of ability to walk the filesystem from other
headers.
Same time we don't need -I$(SRC_DIR)/protobuf/
in general makefile anymore.
[xemul: Small fixlet in head Makefile, since patch
it out-of-order]
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Currently fdinfo dumps for each task, so CR_FD_FDINFO is in cr_fdset.
A few tasks can share one fd table and the set of descriptors will be
dumped once and a image name will contain files_id instead of pid.
In this case CR_FD_FDINFO will go away from cr_fdset.
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Note, at moment we don't use "data" from proto declaration,
it's reserved to implement later (simply because it's easier
to use current code for a while).
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This serves two things -- kills annoying data offset management
which makes protobuf switch too ugly. And removes the need to
seek the pipe data image, which in turn is the prerequisity for
streaming migration.
Memory usage is still optimal, since we still use splice on dump
path and on restore stage we F_GIFT pipe buffers to the kernel.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Make it in two stages.
First -- collect pipe data into hash without checking for pipe/fifo existance.
Next -- when pipe/fifo gets restored walk the hash and search where the pipe data
is.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
The existing code checks for ID to be already dumped. But pipe and fifo may have the same ID
since they reside on different filesystems.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This routine checks for pipe data being dumped based on pipe ID, but the arg in questoin
is the pipe's end ID which makes code reading confusing.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
To reuse with fifo data restore.
v2:
- use image type in functions arguments instead of forcing
calling side to provide file descriptor
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
There is no need to make it xmalloc'ed, it's
global for all processes dumped.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
No functional changes, just a code move.
TODO:
* need to write personal make_gen_id implementations for special
files (device and pos is const for them effectively)
* need to merge dump ops with restore ones (file_desc_ops)
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
