From ddacfaf76dd620af9b73343a975749778321b51c Mon Sep 17 00:00:00 2001 From: Steven Whitehouse Date: Tue, 3 Oct 2006 11:10:41 -0400 Subject: [GFS2] Move logging code into log.c (mostly) This moves the logging code from meta_io.c into log.c and glops.c. As a result the routines can now be static and all the logging code is together in log.c, leaving meta_io.c with just metadata i/o code in it. Signed-off-by: Steven Whitehouse --- fs/gfs2/glops.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) (limited to 'fs/gfs2/glops.c') diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c index ef1492e2d445..41a6b6818a50 100644 --- a/fs/gfs2/glops.c +++ b/fs/gfs2/glops.c @@ -26,7 +26,58 @@ #include "recovery.h" #include "rgrp.h" #include "util.h" +#include "trans.h" +/** + * ail_empty_gl - remove all buffers for a given lock from the AIL + * @gl: the glock + * + * None of the buffers should be dirty, locked, or pinned. + */ + +static void gfs2_ail_empty_gl(struct gfs2_glock *gl) +{ + struct gfs2_sbd *sdp = gl->gl_sbd; + unsigned int blocks; + struct list_head *head = &gl->gl_ail_list; + struct gfs2_bufdata *bd; + struct buffer_head *bh; + u64 blkno; + int error; + + blocks = atomic_read(&gl->gl_ail_count); + if (!blocks) + return; + + error = gfs2_trans_begin(sdp, 0, blocks); + if (gfs2_assert_withdraw(sdp, !error)) + return; + + gfs2_log_lock(sdp); + while (!list_empty(head)) { + bd = list_entry(head->next, struct gfs2_bufdata, + bd_ail_gl_list); + bh = bd->bd_bh; + blkno = bh->b_blocknr; + gfs2_assert_withdraw(sdp, !buffer_busy(bh)); + + bd->bd_ail = NULL; + list_del(&bd->bd_ail_st_list); + list_del(&bd->bd_ail_gl_list); + atomic_dec(&gl->gl_ail_count); + brelse(bh); + gfs2_log_unlock(sdp); + + gfs2_trans_add_revoke(sdp, blkno); + + gfs2_log_lock(sdp); + } + gfs2_assert_withdraw(sdp, !atomic_read(&gl->gl_ail_count)); + gfs2_log_unlock(sdp); + + gfs2_trans_end(sdp); + gfs2_log_flush(sdp, NULL); +} /** * gfs2_pte_inval - Sync and invalidate all PTEs associated with a glock -- cgit v1.2.3-59-g8ed1b