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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-15 01:06:51 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-15 01:06:51 +0300 |
| commit | f0b60bfa952458286f43a63c07b0eea170b2cc95 (patch) | |
| tree | fc326d55acf307786fde06cc7e2daeff713ff715 /fs/dlm/recoverd.c | |
| parent | 29309a4eb8a2a9163b20657ce30510406c792d79 (diff) | |
| parent | 9250e523592a8ced3ecd14abe29fbb1e036bd7eb (diff) | |
| download | linux-f0b60bfa952458286f43a63c07b0eea170b2cc95.tar.xz | |
Merge tag 'dlm-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
Pull dlm updates from David Teigland:
"This set focuses, as usual, on fixes to the comms layer.
New testing of the dlm with ocfs2 uncovered a number of bugs in the
TCP connection handling during recovery, starting, and stopping"
* tag 'dlm-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
dlm: remove dlm_send_rcom_lookup_dump
dlm: recheck kthread_should_stop() before schedule()
DLM: fix NULL pointer dereference in send_to_sock()
DLM: fix to reschedule rwork
DLM: fix to use sk_callback_lock correctly
DLM: fix overflow dlm_cb_seq
DLM: fix memory leak in tcp_accept_from_sock()
DLM: fix conversion deadlock when DLM_LKF_NODLCKWT flag is set
DLM: use CF_CLOSE flag to stop dlm_send correctly
DLM: Reanimate CF_WRITE_PENDING flag
DLM: fix race condition between dlm_recoverd_stop and dlm_recoverd
DLM: close othercon at send/receive error
DLM: retry rcom when dlm_wait_function is timed out.
DLM: fix to use sock_mutex correctly in xxx_accept_from_sock
DLM: fix race condition between dlm_send and dlm_recv
DLM: fix double list_del()
DLM: fix remove save_cb argument from add_sock()
DLM: Fix saving of NULL callbacks
DLM: Eliminate CF_WRITE_PENDING flag
DLM: Eliminate CF_CONNECT_PENDING flag
Diffstat (limited to 'fs/dlm/recoverd.c')
| -rw-r--r-- | fs/dlm/recoverd.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/fs/dlm/recoverd.c b/fs/dlm/recoverd.c index 6859b4bf971e..6f4e1d42d733 100644 --- a/fs/dlm/recoverd.c +++ b/fs/dlm/recoverd.c @@ -287,11 +287,23 @@ static int dlm_recoverd(void *arg) set_bit(LSFL_RECOVER_LOCK, &ls->ls_flags); wake_up(&ls->ls_recover_lock_wait); - while (!kthread_should_stop()) { + while (1) { + /* + * We call kthread_should_stop() after set_current_state(). + * This is because it works correctly if kthread_stop() is + * called just before set_current_state(). + */ set_current_state(TASK_INTERRUPTIBLE); + if (kthread_should_stop()) { + set_current_state(TASK_RUNNING); + break; + } if (!test_bit(LSFL_RECOVER_WORK, &ls->ls_flags) && - !test_bit(LSFL_RECOVER_DOWN, &ls->ls_flags)) + !test_bit(LSFL_RECOVER_DOWN, &ls->ls_flags)) { + if (kthread_should_stop()) + break; schedule(); + } set_current_state(TASK_RUNNING); if (test_and_clear_bit(LSFL_RECOVER_DOWN, &ls->ls_flags)) { |