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| author |   Pengcheng Yang <yangpc@wangsu.com> | 2020-06-04 16:51:30 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-04 19:06:26 -0700 |
| commit | 341a7213e5c1ce274cc0f02270054905800ea660 (patch) | |
| tree | 24ffb5ee7641515733bd3e36f8dd9631c455b4dd /tools/testing/selftests/x86 | |
| parent | kernel/relay.c: handle alloc_percpu returning NULL in relay_open (diff) | |
| download | wireguard-linux-341a7213e5c1ce274cc0f02270054905800ea660.tar.xz wireguard-linux-341a7213e5c1ce274cc0f02270054905800ea660.zip | |
kernel/relay.c: fix read_pos error when multiple readers
When reading, read_pos should start with bytes_consumed, not file->f_pos.
Because when there is more than one reader, the read_pos corresponding to
file->f_pos may have been consumed, which will cause the data that has
been consumed to be read and the bytes_consumed update error.
Signed-off-by: Pengcheng Yang <yangpc@wangsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jann Horn <jannh@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>e
Link: http://lkml.kernel.org/r/1579691175-28949-1-git-send-email-yangpc@wangsu.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/testing/selftests/x86')
0 files changed, 0 insertions, 0 deletions