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| author | Steven Whitehouse <swhiteho@redhat.com> | 2007-09-03 11:01:33 +0100 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2007-10-10 08:56:12 +0100 |
| commit | 1ad38c437fa33f85ba4b6a85ea8c5478ee72d5bd (patch) | |
| tree | 11a5fc7993ba9ae343fc72f03f9a11f312fd6128 /fs/gfs2/log.c | |
| parent | 0820ab517e1b100ee3f9584ec27f93309689ebe7 (diff) | |
| download | op-kernel-dev-1ad38c437fa33f85ba4b6a85ea8c5478ee72d5bd.zip op-kernel-dev-1ad38c437fa33f85ba4b6a85ea8c5478ee72d5bd.tar.gz | |
[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 <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/log.c')
| -rw-r--r-- | fs/gfs2/log.c | 4 |
1 files changed, 2 insertions, 2 deletions
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)); |
