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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2020-09-26 18:15:26 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2020-10-25 20:02:02 -0400 |
| commit | 85353e919f6eb28ee4a797b06de8cc4c48dec2d7 (patch) | |
| tree | dd06595fc7c89297b0cda5c5384b6f29e2e012f3 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | ep_insert(): don't open-code ep_remove() on failure exits (diff) | |
| download | linux-dev-85353e919f6eb28ee4a797b06de8cc4c48dec2d7.tar.xz linux-dev-85353e919f6eb28ee4a797b06de8cc4c48dec2d7.zip | |
ep_insert(): we only need tep->mtx around the insertion itself
We do need ep->mtx (and we are holding it all along), but that's
the lock on the epoll we are inserting into; locking of the
epoll being inserted is not needed for most of that work -
as the matter of fact, we only need it to provide barriers
for the fastpath check (for now).
Move taking and releasing it into ep_insert(). The caller
(do_epoll_ctl()) doesn't need to bother with that at all.
Moreover, that way we kill the kludge in ep_item_poll() - now
it's always called with tep unlocked.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions