Pavel Emelyanov cf01381cbd mem: Drain memory from parasite before dumping it into file ... Currently we dump pages directly from parasite into image files. This is bad for several reasons: 1. We cannot use any more-or-less custom format for pages easily, since parasite code cannot be linked with any libraries; 2. We will not be able to optimize migration with preliminary memory migration (a.k.a. iterative migration) with it -- if we send pages from parasite over network we are not able to let the task we dump continue running. That said, what is done is -- pages from target task are put into a page-pipe in one go, then (not in this patch) parasite can be released and we can do with pages whatever we want. For now pages are just spliced from pipe into image file. Some numbers: In order to drain 1Gb of memory from task we need 1.5M of shared map in args (for iovecs) and 4 pipes (8 descriptors) each referencing 128Mb of pages, which int turn requires 4 x 640K chunks of sequential kernel memory (for pipe_buffer). Not that big I guess. Signed-off-by: Pavel Emelyanov <xemul@parallels.com>		2013-03-01 20:13:11 +04:00
..
bug.h	Move BUG_ONs to include/bug.h	2013-02-27 15:43:31 +04:00
compiler.h	include/compiler.h: Cleanup	2013-02-15 17:34:38 +04:00
cpu.h	cpu: Make cpu routines being per-acrh	2013-02-18 18:42:08 +04:00
crtools.h	vma: Keep track of lonest vma in list and sum of its lengths	2013-03-01 20:12:33 +04:00
eventfd.h	files: pass a file descriptor on an fdinfo image instead of cr_fdset	2013-01-11 14:47:09 +04:00
eventpoll.h	files: pass a file descriptor on an fdinfo image instead of cr_fdset	2013-01-11 14:47:09 +04:00
fifo.h	files: pass a file descriptor on an fdinfo image instead of cr_fdset	2013-01-11 14:47:09 +04:00
file-ids.h	headers: Change "../protobuf/" to "protobuf/"	2013-02-15 17:33:06 +04:00
file-lock.h	headers: Change "../protobuf/" to "protobuf/"	2013-02-15 17:33:06 +04:00
files-reg.h	headers: Change "../protobuf/" to "protobuf/"	2013-02-15 17:33:06 +04:00
files.h	headers: Change "../protobuf/" to "protobuf/"	2013-02-15 17:33:06 +04:00
fsnotify.h	fsnotify: Add dumping of fanotify objects	2013-01-15 18:34:50 +04:00
image.h	crtools: add image contents for filelocks	2013-01-17 14:40:00 +04:00
inet_diag.h	headers: Unify include guards (in comments) and a few fixes	2012-12-25 22:40:24 +04:00
ipc_ns.h	ns: Introduce ns descriptors	2013-01-15 23:24:01 +04:00
kcmp-ids.h	headers: Unify include guards (in comments) and a few fixes	2012-12-25 22:40:24 +04:00
libnetlink.h	headers: Unify include guards (in comments) and a few fixes	2012-12-25 22:40:24 +04:00
list.h	headers: Unify include guards (in comments) and a few fixes	2012-12-25 22:40:24 +04:00
lock.h	lock: Include bug.h instead of big util.h	2013-02-27 15:43:33 +04:00
log-levels.h	headers: Unify include guards (in comments) and a few fixes	2012-12-25 22:40:24 +04:00
log.h	log: Make pr_err_once to use pr_err	2013-01-14 14:26:07 +04:00
mount.h	ns: Introduce ns descriptors	2013-01-15 23:24:01 +04:00
namespaces.h	rst: Evaluate per-task clone mask early	2013-01-19 01:16:19 +04:00
net.h	ns: Introduce ns descriptors	2013-01-15 23:24:01 +04:00
netfilter.h	headers: Unify include guards (in comments) and a few fixes	2012-12-25 22:40:24 +04:00
packet_diag.h	headers: Unify include guards (in comments) and a few fixes	2012-12-25 22:40:24 +04:00
page-pipe.h	page-pipe: Introduce object to collect pages within	2013-03-01 20:12:58 +04:00
parasite-syscall.h	vma: Introduce list-of-vmas object	2013-03-01 20:11:51 +04:00
parasite.h	mem: Drain memory from parasite before dumping it into file	2013-03-01 20:13:11 +04:00
pipes.h	headers: Change "../protobuf/" to "protobuf/"	2013-02-15 17:33:06 +04:00
proc_parse.h	vma: Introduce list-of-vmas object	2013-03-01 20:11:51 +04:00
protobuf.h	protobuf: cast the result of the macro pb_repeated_size to size_t	2013-01-18 11:41:43 +04:00
pstree.h	pstree: Add general core_entry_free helper	2013-02-22 15:41:27 +04:00
ptrace.h	headers: Unify include guards (in comments) and a few fixes	2012-12-25 22:40:24 +04:00
rbtree.h	x86: moved x86-specific files into the directory arch/x86.	2013-01-09 17:02:47 +04:00
restorer.h	fpu: Move definitions to asm/fpu.h	2013-02-18 18:42:08 +04:00
shmem.h	headers: Change "../protobuf/" to "protobuf/"	2013-02-15 17:33:06 +04:00
sigframe.h	include/restorer.h: moved machine-independent sigframe structs to the file include/sigframe.h.	2013-01-09 17:33:59 +04:00
signalfd.h	files: pass a file descriptor on an fdinfo image instead of cr_fdset	2013-01-11 14:47:09 +04:00
sk-inet.h	headers: Change "../protobuf/" to "protobuf/"	2013-02-15 17:33:06 +04:00
sk-packet.h	files: pass a file descriptor on an fdinfo image instead of cr_fdset	2013-01-11 14:47:09 +04:00
sk-queue.h	x86: moved x86-specific files into the directory arch/x86.	2013-01-09 17:02:47 +04:00
sockets.h	headers: Change "../protobuf/" to "protobuf/"	2013-02-15 17:33:06 +04:00
syscall-types.h	rst: Evaluate per-task clone mask early	2013-01-19 01:16:19 +04:00
sysctl.h	headers: Unify include guards (in comments) and a few fixes	2012-12-25 22:40:24 +04:00
tty.h	tty: require stdin to be a terminal only if shell_job is set	2013-01-22 22:45:31 +04:00
unix_diag.h	x86: moved x86-specific files into the directory arch/x86.	2013-01-09 17:02:47 +04:00
util-net.h	headers: Unify include guards (in comments) and a few fixes	2012-12-25 22:40:24 +04:00
util.h	Move BUG_ONs to include/bug.h	2013-02-27 15:43:31 +04:00
uts_ns.h	ns: Introduce ns descriptors	2013-01-15 23:24:01 +04:00