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| author | Vasily Averin <vvs@virtuozzo.com> | 2020-01-30 11:34:49 +0100 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2020-02-12 22:53:35 +0100 |
| commit | db8dd9697238be70a6b4f9d0284cd89f59c0e070 (patch) | |
| tree | 45be3ce2a75ac854098801530b41d4609858f67b /include | |
| parent | linux/pipe_fs_i.h: fix kernel-doc warnings after @wait was split (diff) | |
| download | linux-db8dd9697238be70a6b4f9d0284cd89f59c0e070.tar.xz linux-db8dd9697238be70a6b4f9d0284cd89f59c0e070.zip | |
cgroup-v1: cgroup_pidlist_next should update position index
if seq_file .next fuction does not change position index,
read after some lseek can generate unexpected output.
# mount | grep cgroup
# dd if=/mnt/cgroup.procs bs=1 # normal output
...
1294
1295
1296
1304
1382
584+0 records in
584+0 records out
584 bytes copied
dd: /mnt/cgroup.procs: cannot skip to specified offset
83 <<< generates end of last line
1383 <<< ... and whole last line once again
0+1 records in
0+1 records out
8 bytes copied
dd: /mnt/cgroup.procs: cannot skip to specified offset
1386 <<< generates last line anyway
0+1 records in
0+1 records out
5 bytes copied
https://bugzilla.kernel.org/show_bug.cgi?id=206283
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions