From 1ad38c437fa33f85ba4b6a85ea8c5478ee72d5bd Mon Sep 17 00:00:00 2001 From: Steven Whitehouse Date: Mon, 3 Sep 2007 11:01:33 +0100 Subject: [GFS2] Clean up gfs2_trans_add_revoke() The following alters gfs2_trans_add_revoke() to take a struct gfs2_bufdata as an argument. This eliminates the memory allocation which was previously required by making use of the already existing struct gfs2_bufdata. It makes some sanity checks to ensure that the gfs2_bufdata has been removed from all the lists before its recycled as a revoke structure. This saves one memory allocation and one free per revoke structure. Also as a result, and to simplify the locking, since there is no longer any blocking code in gfs2_trans_add_revoke() we must hold the log lock whenever this function is called. This reduces the amount of times we take and unlock the log lock. Signed-off-by: Steven Whitehouse --- fs/gfs2/log.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs/gfs2/log.c') diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c index 20fa528..4d04e6f 100644 --- a/fs/gfs2/log.c +++ b/fs/gfs2/log.c @@ -71,8 +71,8 @@ unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct, void gfs2_remove_from_ail(struct address_space *mapping, struct gfs2_bufdata *bd) { bd->bd_ail = NULL; - list_del(&bd->bd_ail_st_list); - list_del(&bd->bd_ail_gl_list); + list_del_init(&bd->bd_ail_st_list); + list_del_init(&bd->bd_ail_gl_list); atomic_dec(&bd->bd_gl->gl_ail_count); if (mapping) gfs2_meta_cache_flush(GFS2_I(mapping->host)); -- cgit v1.1