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author | Eric W. Biederman <ebiederm@xmission.com> | 2017-09-26 13:06:43 -0500 |
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committer | Eric W. Biederman <ebiederm@xmission.com> | 2018-07-21 10:43:12 -0500 |
commit | 2c4704756cab7cfa031ada4dab361562f0e357c0 (patch) | |
tree | 8757eb8762d60e34eeab747493759abf3f902c09 /fs/pipe.c | |
parent | 71dbc8a96953aa91c50181a526acb7f80af74f67 (diff) | |
download | linux-2c4704756cab7cfa031ada4dab361562f0e357c0.tar.bz2 |
pids: Move the pgrp and session pid pointers from task_struct to signal_struct
To access these fields the code always has to go to group leader so
going to signal struct is no loss and is actually a fundamental simplification.
This saves a little bit of memory by only allocating the pid pointer array
once instead of once for every thread, and even better this removes a
few potential races caused by the fact that group_leader can be changed
by de_thread, while signal_struct can not.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'fs/pipe.c')
0 files changed, 0 insertions, 0 deletions