- 13 Nov, 2012 2 commits
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Pavel Emelyanov authored
Same as previous patch -- easier to read and possible to use tags. Signed-off-by:Pavel Emelyanov <xemul@parallels.com>
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Pavel Emelyanov authored
This makes code more readable, saves one ptr on stack and lets us jump into restorer code using tags. Signed-off-by:
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- 12 Nov, 2012 17 commits
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Pavel Emelyanov authored
Not to spoil screen with false warnings. Signed-off-by: -
Cyrill Gorcunov authored
To test threads blocked signals restoration. Signed-off-by:
Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by:
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Cyrill Gorcunov authored
To unify the code for both thread leader and regular threads we move blocked signals for thread leader into threads argument area and use restore_thread_common() helper. Signed-off-by:
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Cyrill Gorcunov authored
And add missing new line in message. Signed-off-by:
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Cyrill Gorcunov authored
For debug purpose. Signed-off-by:
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Cyrill Gorcunov authored
I've moved dump_thread helper a bit lower in file since I've to call for find_thread_state helper. After all this groups all thread related functions in one slab. Signed-off-by:
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Cyrill Gorcunov authored
This patch starts using parasite_init_threads_seized and parasite_fini_threads_seized helpers to save per-thread data in parasite and remove it on cure procedure. Signed-off-by:
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Cyrill Gorcunov authored
Just to be consistent with types we're using. Signed-off-by:
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Cyrill Gorcunov authored
We will need to extend the structure to keep not only tid/tid_addr but blocked signals as well, thus rename it to more generic parasite_dump_thread. The command PARASITE_CMD_DUMP_TID_ADDR renamed to PARASITE_CMD_DUMP_THREAD for the same sake. Signed-off-by:
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Cyrill Gorcunov authored
We will use them from crtools code to save and restore blocked signals mask of threads. Signed-off-by:
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Cyrill Gorcunov authored
- the init() now calls for init_thread() to save blocked signals mask in per-thread data - the fini() now calls for fini_thread() to restore the blocked signals, note: we could use thread_leader directly but i think calling for fini_thread() is more generic - dump_misc() now uses per-thread data Signed-off-by:
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Cyrill Gorcunov authored
These helpers will be needed to save a blocked signals mask for dumpee threads. Signed-off-by:
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Cyrill Gorcunov authored
The per-thread information requires own space in parasite data. In particular we will keep the blocked signals bound to thread pids. For this sake the caller need to provide the parasite how many threads will be used to calculate space. Signed-off-by:
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Cyrill Gorcunov authored
It will hold the blocked signals for threads. Signed-off-by:
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Cyrill Gorcunov authored
Otherwise we might get nil dereference in sigreturn restore. Signed-off-by:
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Cyrill Gorcunov authored
We will need to extend non-zombie tests. Signed-off-by:
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Cyrill Gorcunov authored
Don't forget to test thread leader as well. Signed-off-by:
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- 11 Nov, 2012 2 commits
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Cyrill Gorcunov authored
No func change. Signed-off-by:
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Cyrill Gorcunov authored
Better to stick with the convention we're trying to follow in general -- negative codes for error. Signed-off-by:
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- 06 Nov, 2012 11 commits
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Pavel Emelyanov authored
Linux kernel emulates anon-shared mappings by mapping internal tmpfs file in. We try to detect this by checking that the file under map is such, but do it with error -- major == 0 check is wrong, as regular tmpfs file can be such as well as btrfs or ecryptfs can screw things up. The only working way of doing this is to get the dev_t of this internal tmpfs mount. Signed-off-by: -
Cyrill Gorcunov authored
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Cyrill Gorcunov authored
Fix a few places where positive value returned as an error sign. Signed-off-by:
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Cyrill Gorcunov authored
Fix a typo. Signed-off-by:
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Cyrill Gorcunov authored
It's a predicate function, boolean value is more appropriate here. Signed-off-by:
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Andrey Vagin authored
Signed-off-by:
Andrey Vagin <avagin@openvz.org> Signed-off-by:
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Vladimir Davydov authored
During live migration timer overrun can jump forward too. Signed-off-by:
Vladimir Davydov <vdavydov@parallels.com> Acked-by:
Stanislav Kinsbursky <skinsbursky@openvz.com> Signed-off-by:
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Cyrill Gorcunov authored
This sneaked during parasite error handling code rework. When parasite returned negative error code we should not invert it. Signed-off-by:
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Stanislav Kinsbursky authored
Print "<empty>" message for such filed instead. #2425 Signed-off-by:
Andrew Vagin <avagin@parallels.com> Signed-off-by:
Stanislav Kinsbursky <skinsbursky@openvz.org> Signed-off-by:
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Cyrill Gorcunov authored
If the kernel is misconfigured (say UDP diag module is not set) we should detect such situation and report an error. This patch adds a test for error code. Note the kernel requires a patch as well. Without kernel patch this test do not harm anyway, thus safe to merge. #2412 Signed-off-by:
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Cyrill Gorcunov authored
In case if the pr_err happens before pr_msg, the string buffer will have dangling timestamp prefix. Skip it here. Signed-off-by:
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- 02 Nov, 2012 8 commits
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Andrey Vagin authored
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Andrey Vagin authored
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Andrey Vagin authored
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Pavel Emelyanov authored
This is required to work with tcpdump. Signed-off-by: -
Pavel Emelyanov authored
Three parts. Proc: open of map_files' link doesn't work on sockets. We fstatat it and check that it's a socket (it will be packet), then save the socket inode on vma_area. Dump: we resolve socket inode to socket id and save it on vma. We use id, not inode, since on restore we'll have to mmap some opened file, not just abstract socket with inode. Restore: when reading vma-s we just need to find out on what fd the respective packet socket is opened (i.e. -- no map-and-close sockets supported by now) and dup() it to let restorer mmap it back. All this make it possible to c/r the tcpdump tool! Signed-off-by: -
Pavel Emelyanov authored
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Pavel Emelyanov authored
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Pavel Emelyanov authored
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