diff options
| author | Andreas Gruenbacher <agruenba@redhat.com> | 2020-01-17 13:48:49 +0100 |
|---|---|---|
| committer | Andreas Gruenbacher <agruenba@redhat.com> | 2020-06-05 20:19:21 +0200 |
| commit | 35b6f8fbcf9b2ebdee0a0f77143a8d203a9616e1 (patch) | |
| tree | f22950806c7bf6560c34f67d4d01883552fc3107 /fs/gfs2 | |
| parent | b0dcffd8da3339ad0300587ce7030efdf2e914a9 (diff) | |
| download | lwn-35b6f8fbcf9b2ebdee0a0f77143a8d203a9616e1.tar.gz lwn-35b6f8fbcf9b2ebdee0a0f77143a8d203a9616e1.zip | |
gfs2: Wake up when setting GLF_DEMOTE
Wake up the sdp->sd_async_glock_wait wait queue when setting the GLF_DEMOTE
flag.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Diffstat (limited to 'fs/gfs2')
| -rw-r--r-- | fs/gfs2/glock.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index 711259f68d55..7ad06dd49352 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -464,6 +464,15 @@ static void state_change(struct gfs2_glock *gl, unsigned int new_state) gl->gl_tchange = jiffies; } +static void gfs2_set_demote(struct gfs2_glock *gl) +{ + struct gfs2_sbd *sdp = gl->gl_name.ln_sbd; + + set_bit(GLF_DEMOTE, &gl->gl_flags); + smp_mb(); + wake_up(&sdp->sd_async_glock_wait); +} + static void gfs2_demote_wake(struct gfs2_glock *gl) { gl->gl_demote_state = LM_ST_EXCLUSIVE; @@ -876,7 +885,7 @@ static void glock_work_func(struct work_struct *work) if (!delay) { clear_bit(GLF_PENDING_DEMOTE, &gl->gl_flags); - set_bit(GLF_DEMOTE, &gl->gl_flags); + gfs2_set_demote(gl); } } run_queue(gl, 0); @@ -1221,9 +1230,10 @@ wait_for_dlm: static void handle_callback(struct gfs2_glock *gl, unsigned int state, unsigned long delay, bool remote) { - int bit = delay ? GLF_PENDING_DEMOTE : GLF_DEMOTE; - - set_bit(bit, &gl->gl_flags); + if (delay) + set_bit(GLF_PENDING_DEMOTE, &gl->gl_flags); + else + gfs2_set_demote(gl); if (gl->gl_demote_state == LM_ST_EXCLUSIVE) { gl->gl_demote_state = state; gl->gl_demote_time = jiffies; |