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authorBenjamin Marzinski <bmarzins@redhat.com>2013-06-14 18:38:29 +0200
committerSteven Whitehouse <swhiteho@redhat.com>2013-06-19 10:41:59 +0200
commit5d054964f57ade1adb310313c3cfb8e93e804e8f (patch)
treec04a28ef48bc298d5aaffda4e0cf2cda10eba43e /fs/gfs2/log.h
parentGFS2: fix regression in dir_double_exhash (diff)
downloadlinux-5d054964f57ade1adb310313c3cfb8e93e804e8f.tar.xz
linux-5d054964f57ade1adb310313c3cfb8e93e804e8f.zip
GFS2: aggressively issue revokes in gfs2_log_flush
This patch looks at all the outstanding blocks in all the transactions on the log, and moves the completed ones to the ail2 list. Then it issues revokes for these blocks. This will hopefully speed things up in situations where there is a lot of contention for glocks, especially if they are acquired serially. revoke_lo_before_commit will issue at most one log block's full of these preemptive revokes. The amount of reserved log space that gfs2_log_reserve() ignores has been incremented to allow for this extra block. This patch also consolidates the common revoke instructions into one function, gfs2_add_revoke(). Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/log.h')
-rw-r--r--fs/gfs2/log.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/gfs2/log.h b/fs/gfs2/log.h
index 3566f35915e0..37216634f0aa 100644
--- a/fs/gfs2/log.h
+++ b/fs/gfs2/log.h
@@ -72,5 +72,7 @@ extern void gfs2_ail1_flush(struct gfs2_sbd *sdp, struct writeback_control *wbc)
extern void gfs2_log_shutdown(struct gfs2_sbd *sdp);
extern void gfs2_meta_syncfs(struct gfs2_sbd *sdp);
extern int gfs2_logd(void *data);
+extern void gfs2_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
+extern void gfs2_write_revokes(struct gfs2_sbd *sdp);
#endif /* __LOG_DOT_H__ */