diff options
Diffstat (limited to 'fs/gfs2')
| -rw-r--r-- | fs/gfs2/glops.c | 27 | ||||
| -rw-r--r-- | fs/gfs2/log.c | 2 | ||||
| -rw-r--r-- | fs/gfs2/log.h | 1 |
3 files changed, 28 insertions, 2 deletions
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c index b58924482d9a..bbbcae8d853c 100644 --- a/fs/gfs2/glops.c +++ b/fs/gfs2/glops.c @@ -92,8 +92,32 @@ static void gfs2_ail_empty_gl(struct gfs2_glock *gl) INIT_LIST_HEAD(&tr.tr_databuf); tr.tr_revokes = atomic_read(&gl->gl_ail_count); - if (!tr.tr_revokes) + if (!tr.tr_revokes) { + bool have_revokes; + bool log_in_flight; + + /* + * We have nothing on the ail, but there could be revokes on + * the sdp revoke queue, in which case, we still want to flush + * the log and wait for it to finish. + * + * If the sdp revoke list is empty too, we might still have an + * io outstanding for writing revokes, so we should wait for + * it before returning. + * + * If none of these conditions are true, our revokes are all + * flushed and we can return. + */ + gfs2_log_lock(sdp); + have_revokes = !list_empty(&sdp->sd_log_revokes); + log_in_flight = atomic_read(&sdp->sd_log_in_flight); + gfs2_log_unlock(sdp); + if (have_revokes) + goto flush; + if (log_in_flight) + log_flush_wait(sdp); return; + } /* A shortened, inline version of gfs2_trans_begin() * tr->alloced is not set since the transaction structure is @@ -108,6 +132,7 @@ static void gfs2_ail_empty_gl(struct gfs2_glock *gl) __gfs2_ail_flush(gl, 0, tr.tr_revokes); gfs2_trans_end(sdp); +flush: gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_NORMAL | GFS2_LFC_AIL_EMPTY_GL); } diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c index 578c1e0cd415..c37f81470792 100644 --- a/fs/gfs2/log.c +++ b/fs/gfs2/log.c @@ -537,7 +537,7 @@ static void log_pull_tail(struct gfs2_sbd *sdp, unsigned int new_tail) } -static void log_flush_wait(struct gfs2_sbd *sdp) +void log_flush_wait(struct gfs2_sbd *sdp) { DEFINE_WAIT(wait); diff --git a/fs/gfs2/log.h b/fs/gfs2/log.h index c0a65e5a126b..c1cd6ae17659 100644 --- a/fs/gfs2/log.h +++ b/fs/gfs2/log.h @@ -73,6 +73,7 @@ extern void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, u32 type); extern void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans); extern void gfs2_ail1_flush(struct gfs2_sbd *sdp, struct writeback_control *wbc); +extern void log_flush_wait(struct gfs2_sbd *sdp); extern int gfs2_logd(void *data); extern void gfs2_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd); |