[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH V4 0/5] Redefine and export backing file loop check
From: |
Xu Wang |
Subject: |
[Qemu-devel] [PATCH V4 0/5] Redefine and export backing file loop check |
Date: |
Mon, 22 Jul 2013 04:05:44 -0400 |
If there is loop exists in the backing file chain, many problems
could be caused by it, such as no response and segment fault during
system boot. Hence stopping backing file loop appear is very necessary.
These patches refine and export loop checking function from collect_image_
info_list() to block.c and build a independent function named bdrv_
backing_file_loop_check(). Backing file loop checking is added before
image created, before change backing file and before system boot.
Updates from V3:
1. Comments fix for function bdrv_backing_file_loop_check().
2. Add ret check for fseek()/fread() in get_lnk_target_file().
3. Add limit of shortcuts filename length reading during comparing.
4. Add error_report() in driv_init().
5. Remove redundant loop check in qcow2/qed_change_backing_file().
Updates from V2:
1. Removed parameter @chain from bdrv_backing_file_loop_check()
2. Comments and format fix, all patches were checked by checkpatch.pl
3. Fixed *bs leak.
4. Improved logic of .lnk file recognization.
5. Add filename lenth limit check in while()
6. Changed get_win_inode() to get_inode() and move all inode get method
into it to make logic more simpler.
7. Added value of @fmt as suggested.
8. Added backing file loop check in qcow2.c/qed.c
Xu Wang (5):
block/qemu-img: Refine and export infinite loop checking in
collect_image_info_list()
block: Add WIN32 platform support for backing_file_loop_check()
block: Check infinite loop in bdrv_img_create()
block: Add backing file loop check in change_backing_file()
block: Add infinite loop check in drive_init()
block.c | 257 +++++++++++++++++++++++++++++++++++++++++++++++++-
blockdev.c | 7 ++
include/block/block.h | 4 +
qemu-img.c | 29 ++----
4 files changed, 272 insertions(+), 25 deletions(-)
--
1.8.1.4
- [Qemu-devel] [PATCH V4 0/5] Redefine and export backing file loop check,
Xu Wang <=
- [Qemu-devel] [PATCH V4 1/5] block/qemu-img: Refine and export infinite loop checking in collect_image_info_list(), Xu Wang, 2013/07/22
- [Qemu-devel] [PATCH V4 2/5] block: Add WIN32 platform support for backing_file_loop_check(), Xu Wang, 2013/07/22
- [Qemu-devel] [PATCH V4 3/5] block: Check infinite loop in bdrv_img_create(), Xu Wang, 2013/07/22
- [Qemu-devel] [PATCH V4 4/5] block: Add backing file loop check in change_backing_file(), Xu Wang, 2013/07/22
- [Qemu-devel] [PATCH V4 5/5] block: Add infinite loop check in drive_init(), Xu Wang, 2013/07/22