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authorBob Peterson <rpeterso@redhat.com>2017-01-25 20:57:42 +0300
committerBob Peterson <rpeterso@redhat.com>2017-01-27 16:20:41 +0300
commit192738b711d3e41a7326347db5d6923d2136b6d0 (patch)
treeabe4a58b3e7f4208c1cfc419afff3018ed249c70 /fs/gfs2
parent9862ca056e654633e521b303f74fb123f7f17e98 (diff)
downloadlinux-192738b711d3e41a7326347db5d6923d2136b6d0.tar.xz
GFS2: Inline function meta_lo_add
This patch simply combines function meta_lo_add with its only caller, trans_add_meta. This makes the code easier to read and will make it easier to reduce contention on gfs2_log_lock. Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Diffstat (limited to 'fs/gfs2')
-rw-r--r--fs/gfs2/trans.c49
1 files changed, 22 insertions, 27 deletions
diff --git a/fs/gfs2/trans.c b/fs/gfs2/trans.c
index 5d7f5b08d600..483c5a7e16d4 100644
--- a/fs/gfs2/trans.c
+++ b/fs/gfs2/trans.c
@@ -195,16 +195,35 @@ void gfs2_trans_add_data(struct gfs2_glock *gl, struct buffer_head *bh)
unlock_buffer(bh);
}
-static void meta_lo_add(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd)
+void gfs2_trans_add_meta(struct gfs2_glock *gl, struct buffer_head *bh)
{
+
+ struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
+ struct gfs2_bufdata *bd;
struct gfs2_meta_header *mh;
struct gfs2_trans *tr;
enum gfs2_freeze_state state = atomic_read(&sdp->sd_freeze_state);
+ lock_buffer(bh);
+ gfs2_log_lock(sdp);
+ bd = bh->b_private;
+ if (bd == NULL) {
+ gfs2_log_unlock(sdp);
+ unlock_buffer(bh);
+ lock_page(bh->b_page);
+ if (bh->b_private == NULL)
+ bd = gfs2_alloc_bufdata(gl, bh, &gfs2_buf_lops);
+ else
+ bd = bh->b_private;
+ unlock_page(bh->b_page);
+ lock_buffer(bh);
+ gfs2_log_lock(sdp);
+ }
+ gfs2_assert(sdp, bd->bd_gl == gl);
tr = current->journal_info;
set_bit(TR_TOUCHED, &tr->tr_flags);
if (!list_empty(&bd->bd_list))
- return;
+ goto out_unlock;
set_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags);
set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags);
mh = (struct gfs2_meta_header *)bd->bd_bh->b_data;
@@ -222,31 +241,7 @@ static void meta_lo_add(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd)
mh->mh_jid = cpu_to_be32(sdp->sd_jdesc->jd_jid);
list_add(&bd->bd_list, &tr->tr_buf);
tr->tr_num_buf_new++;
-}
-
-void gfs2_trans_add_meta(struct gfs2_glock *gl, struct buffer_head *bh)
-{
-
- struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
- struct gfs2_bufdata *bd;
-
- lock_buffer(bh);
- gfs2_log_lock(sdp);
- bd = bh->b_private;
- if (bd == NULL) {
- gfs2_log_unlock(sdp);
- unlock_buffer(bh);
- lock_page(bh->b_page);
- if (bh->b_private == NULL)
- bd = gfs2_alloc_bufdata(gl, bh, &gfs2_buf_lops);
- else
- bd = bh->b_private;
- unlock_page(bh->b_page);
- lock_buffer(bh);
- gfs2_log_lock(sdp);
- }
- gfs2_assert(sdp, bd->bd_gl == gl);
- meta_lo_add(sdp, bd);
+out_unlock:
gfs2_log_unlock(sdp);
unlock_buffer(bh);
}