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[GFS2] Don't add glocks to the journal

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The only reason for adding glocks to the journal was to keep track
of which locks required a log flush prior to release. We add a
flag to the glock to allow this check to be made in a simpler way.

This reduces the size of a glock (by 12 bytes on i386, 24 on x86_64)
and means that we can avoid extra work during the journal flush.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Steven Whitehouse 2007-11-08 14:25:12 +00:00
parent 8cbc434247
commit 2bcd610d2f
9 changed files with 21 additions and 78 deletions
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9
fs/gfs2/log.h
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@ -57,7 +57,14 @@ void gfs2_log_incr_head(struct gfs2_sbd *sdp);
struct buffer_head *gfs2_log_get_buf(struct gfs2_sbd *sdp);
struct buffer_head *gfs2_log_fake_buf(struct gfs2_sbd *sdp,
struct buffer_head *real);
void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl);
void __gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl);
static inline void gfs2_log_flush(struct gfs2_sbd *sbd, struct gfs2_glock *gl)
{
if (!gl || test_bit(GLF_LFLUSH, &gl->gl_flags))
__gfs2_log_flush(sbd, gl);
}
void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans);
void gfs2_remove_from_ail(struct gfs2_bufdata *bd);