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Commit e317ffcb authored by Steven Whitehouse's avatar Steven Whitehouse
Browse files

[GFS2] Remove uneeded memory allocation 



For every filesystem operation where we need a transaction, we
now make one less memory allocation.

Signed-off-by: default avatarSteven Whitehouse <swhiteho@redhat.com>
parent b3f58d8f

fs/gfs2/incore.h

+1 −1
Original line number Diff line number Diff line
@@ -360,7 +360,7 @@ struct gfs2_trans { 
	unsigned int tr_revokes;

	unsigned int tr_reserved;



	struct gfs2_holder *tr_t_gh;

	struct gfs2_holder tr_t_gh;



	int tr_touched;

fs/gfs2/trans.c

+12 −18
Original line number Diff line number Diff line
@@ -53,18 +53,15 @@ int gfs2_trans_begin_i(struct gfs2_sbd *sdp, unsigned int blocks, 
						   sizeof(uint64_t));

	INIT_LIST_HEAD(&tr->tr_list_buf);



	error = -ENOMEM;

	tr->tr_t_gh = gfs2_holder_get(sdp->sd_trans_gl, LM_ST_SHARED,

				      GL_NEVER_RECURSE, GFP_NOFS);

	if (!tr->tr_t_gh)

		goto fail;

	gfs2_holder_init(sdp->sd_trans_gl, LM_ST_SHARED,

			 GL_NEVER_RECURSE, &tr->tr_t_gh);



	error = gfs2_glock_nq(tr->tr_t_gh);

	error = gfs2_glock_nq(&tr->tr_t_gh);

	if (error)

		goto fail_holder_put;

		goto fail_holder_uninit;



	if (!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) {

		tr->tr_t_gh->gh_flags |= GL_NOCACHE;

		tr->tr_t_gh.gh_flags |= GL_NOCACHE;

		error = -EROFS;

		goto fail_gunlock;

	}
@@ -78,12 +75,10 @@ int gfs2_trans_begin_i(struct gfs2_sbd *sdp, unsigned int blocks, 
	return 0;



 fail_gunlock:

	gfs2_glock_dq(tr->tr_t_gh);

	gfs2_glock_dq(&tr->tr_t_gh);



 fail_holder_put:

	gfs2_holder_put(tr->tr_t_gh);



 fail:

 fail_holder_uninit:

	gfs2_holder_uninit(&tr->tr_t_gh);

	kfree(tr);



	return error;
@@ -100,16 +95,15 @@ void gfs2_trans_end(struct gfs2_sbd *sdp) 
	if (gfs2_assert_warn(sdp, tr))

		return;



	t_gh = tr->tr_t_gh;

	tr->tr_t_gh = NULL;

	t_gh = &tr->tr_t_gh;



	if (!tr->tr_touched) {

		gfs2_log_release(sdp, tr->tr_reserved);

		kfree(tr);



		gfs2_glock_dq(t_gh);

		gfs2_holder_put(t_gh);

		gfs2_holder_uninit(t_gh);



		kfree(tr);

		return;

	}
@@ -127,7 +121,7 @@ void gfs2_trans_end(struct gfs2_sbd *sdp) 
	gfs2_log_commit(sdp, tr);



	gfs2_glock_dq(t_gh);

	gfs2_holder_put(t_gh);

	gfs2_holder_uninit(t_gh);



	if (sdp->sd_vfs->s_flags & MS_SYNCHRONOUS)

		gfs2_log_flush(sdp);