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-rw-r--r--fs/gfs2/meta_io.c70
1 files changed, 0 insertions, 70 deletions
diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c
index 8da343b34ae7..d762e4f7044e 100644
--- a/fs/gfs2/meta_io.c
+++ b/fs/gfs2/meta_io.c
@@ -298,76 +298,6 @@ void gfs2_attach_bufdata(struct gfs2_glock *gl, struct buffer_head *bh,
298} 298}
299 299
300/** 300/**
301 * gfs2_pin - Pin a buffer in memory
302 * @sdp: the filesystem the buffer belongs to
303 * @bh: The buffer to be pinned
304 *
305 */
306
307void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh)
308{
309 struct gfs2_bufdata *bd = bh->b_private;
310
311 gfs2_assert_withdraw(sdp, test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags));
312
313 if (test_set_buffer_pinned(bh))
314 gfs2_assert_withdraw(sdp, 0);
315
316 wait_on_buffer(bh);
317
318 /* If this buffer is in the AIL and it has already been written
319 to in-place disk block, remove it from the AIL. */
320
321 gfs2_log_lock(sdp);
322 if (bd->bd_ail && !buffer_in_io(bh))
323 list_move(&bd->bd_ail_st_list, &bd->bd_ail->ai_ail2_list);
324 gfs2_log_unlock(sdp);
325
326 clear_buffer_dirty(bh);
327 wait_on_buffer(bh);
328
329 if (!buffer_uptodate(bh))
330 gfs2_io_error_bh(sdp, bh);
331
332 get_bh(bh);
333}
334
335/**
336 * gfs2_unpin - Unpin a buffer
337 * @sdp: the filesystem the buffer belongs to
338 * @bh: The buffer to unpin
339 * @ai:
340 *
341 */
342
343void gfs2_unpin(struct gfs2_sbd *sdp, struct buffer_head *bh,
344 struct gfs2_ail *ai)
345{
346 struct gfs2_bufdata *bd = bh->b_private;
347
348 gfs2_assert_withdraw(sdp, buffer_uptodate(bh));
349
350 if (!buffer_pinned(bh))
351 gfs2_assert_withdraw(sdp, 0);
352
353 mark_buffer_dirty(bh);
354 clear_buffer_pinned(bh);
355
356 gfs2_log_lock(sdp);
357 if (bd->bd_ail) {
358 list_del(&bd->bd_ail_st_list);
359 brelse(bh);
360 } else {
361 struct gfs2_glock *gl = bd->bd_gl;
362 list_add(&bd->bd_ail_gl_list, &gl->gl_ail_list);
363 atomic_inc(&gl->gl_ail_count);
364 }
365 bd->bd_ail = ai;
366 list_add(&bd->bd_ail_st_list, &ai->ai_ail1_list);
367 gfs2_log_unlock(sdp);
368}
369
370/**
371 * gfs2_meta_wipe - make inode's buffers so they aren't dirty/pinned anymore 301 * gfs2_meta_wipe - make inode's buffers so they aren't dirty/pinned anymore
372 * @ip: the inode who owns the buffers 302 * @ip: the inode who owns the buffers
373 * @bstart: the first buffer in the run 303 * @bstart: the first buffer in the run