diff options
Diffstat (limited to 'results/classifier/deepseek-2-tmp/output/other/1865048')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/output/other/1865048 | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/results/classifier/deepseek-2-tmp/output/other/1865048 b/results/classifier/deepseek-2-tmp/output/other/1865048 deleted file mode 100644 index 02d60140..00000000 --- a/results/classifier/deepseek-2-tmp/output/other/1865048 +++ /dev/null @@ -1,43 +0,0 @@ - -qemu-img --force-share does not disable file locking - -The new option "--force-share" for qemu-img does not disable file locking. - -I tried it with version qemu-img version 2.11.1(Debian 1:2.11+dfsg-1ubuntu7.21~cloud0) and I traced the source code of the current git trunk. - -Sample to demonstrate: - -# strace qemu-img info --force-share testfile.qcow2 2>&1 | grep F_RDLCK -fcntl(11, F_OFD_SETLK, {l_type=F_RDLCK, l_whence=SEEK_SET, l_start=100, l_len=1}) = 0 -fcntl(11, F_OFD_SETLK, {l_type=F_RDLCK, l_whence=SEEK_SET, l_start=100, l_len=1}) = 0 -fcntl(11, F_OFD_SETLK, {l_type=F_RDLCK, l_whence=SEEK_SET, l_start=100, l_len=1}) = 0 -fcntl(11, F_OFD_SETLK, {l_type=F_RDLCK, l_whence=SEEK_SET, l_start=100, l_len=1}) = 0 -fcntl(11, F_OFD_SETLK, {l_type=F_RDLCK, l_whence=SEEK_SET, l_start=100, l_len=1}) = 0 -fcntl(11, F_OFD_SETLK, {l_type=F_RDLCK, l_whence=SEEK_SET, l_start=100, l_len=1}) = 0 -fcntl(11, F_OFD_SETLK, {l_type=F_RDLCK, l_whence=SEEK_SET, l_start=100, l_len=1}) = 0 -fcntl(11, F_OFD_SETLK, {l_type=F_RDLCK, l_whence=SEEK_SET, l_start=100, l_len=1}) = 0 -fcntl(11, F_OFD_SETLK, {l_type=F_RDLCK, l_whence=SEEK_SET, l_start=100, l_len=1}) = 0 - -I traced the passing of the --force-share option through the source code (I used commit 6c599282f8 as of Mon Feb 17 13:32:25 2020 +0000) - -qemu-img.c:img_info() - force_share = true; -qemu-img.c:collect_image_info_list(force_share) -qemu-img.c:img_open(force_share) -qemu-img.c:img_open_file(force_share) - qdict_put_bool(options, BDRV_OPT_FORCE_SHARE, true); -block/block-backend.c:blk_new_open(options) -block.c:bdrv_open(options) -block.c:bdrv_open_inheritoptions() -block.c:bdrv_open_common(options) - bs->force_share = qemu_opt_get_bool(opts, BDRV_OPT_FORCE_SHARE, false); -block.c:bdrv_open_driver(bs) -include/block/block_int.h:int (*bdrv_file_open)(BlockDriverState *bs, QDict *options, int flags, -block/file-posix.c:.bdrv_file_open = raw_open, -block/file-posix.c:raw_open_common(bs) - locking = qapi_enum_parse(&OnOffAuto_lookup, - qemu_opt_get(opts, "locking"), - ON_OFF_AUTO_AUTO, &local_err); - ignoring bs->force_share - -At the end, bs->force_share is ignored in determining the locking value. \ No newline at end of file |