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authorSteven Whitehouse <swhiteho@redhat.com>2006-10-03 19:10:41 +0400
committerSteven Whitehouse <swhiteho@redhat.com>2006-10-03 19:10:41 +0400
commitddacfaf76dd620af9b73343a975749778321b51c (patch)
tree1199c2a78b5e2cdd6efc6965dd4cd8caa00ec482 /fs/gfs2/glops.c
parentf92a0b6ff43e8e07bbd5b1d2dd1cff130014f3c7 (diff)
downloadlinux-ddacfaf76dd620af9b73343a975749778321b51c.tar.xz
[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 <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/glops.c')
-rw-r--r--fs/gfs2/glops.c51
1 files changed, 51 insertions, 0 deletions
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