diff options
| author | Oleg Nesterov <oleg@redhat.com> | 2024-09-29 16:42:44 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2024-10-07 09:28:44 +0200 |
| commit | 6ffe8c7d871b327d16ae6b6f1db4c8ecb0f15c64 (patch) | |
| tree | e56a538a57bb3b16855fcc864cfac9d7e707f973 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | 430af825ba991730f8acc3c804a4aef82e9f7ff6 (diff) | |
uprobes: simplify xol_take_insn_slot() and its caller
The do / while (slot_nr >= UINSNS_PER_PAGE) loop in xol_take_insn_slot()
makes no sense, the checked condition is always true. Change this code
to use the "for (;;)" loop, this way we do not need to change slot_nr if
test_and_set_bit() fails.
Also, kill the unnecessary xol_vaddr != NULL check in xol_get_insn_slot(),
xol_take_insn_slot() never returns NULL.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240929144244.GA9480@redhat.com
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions