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| author | Bob Peterson <rpeterso@redhat.com> | 2018-06-13 08:52:47 -0500 |
|---|---|---|
| committer | Bob Peterson <rpeterso@redhat.com> | 2018-06-21 07:39:31 -0500 |
| commit | f85c10e24ab9fd8ccb6de3d6061a3110ff3581df (patch) | |
| tree | ac348f7630b1f2103fd679609f49bc73072047ce /fs/gfs2/trace_gfs2.h | |
| parent | f0dc7f9c6dd99891611fca5849cbc4c6965b690e (diff) | |
| download | lwn-f85c10e24ab9fd8ccb6de3d6061a3110ff3581df.tar.gz lwn-f85c10e24ab9fd8ccb6de3d6061a3110ff3581df.zip | |
gfs2: eliminate rs_inum and reduce the size of gfs2 inodes
Before this patch, block reservations kept track of the inode
number. At one point, that was a valid thing to do. However, since
we made the reservation a part of the inode (rather than a pointer
to a separate allocated object) the reservation can determine the
inode number by using container_of. This saves us a little memory
in our inode.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Acked-by: Steven Whitehouse <swhiteho@redhat.com>
Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com>
Diffstat (limited to 'fs/gfs2/trace_gfs2.h')
| -rw-r--r-- | fs/gfs2/trace_gfs2.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/gfs2/trace_gfs2.h b/fs/gfs2/trace_gfs2.h index cb10b95efe0f..e0025258107a 100644 --- a/fs/gfs2/trace_gfs2.h +++ b/fs/gfs2/trace_gfs2.h @@ -606,7 +606,8 @@ TRACE_EVENT(gfs2_rs, __entry->rd_addr = rs->rs_rbm.rgd->rd_addr; __entry->rd_free_clone = rs->rs_rbm.rgd->rd_free_clone; __entry->rd_reserved = rs->rs_rbm.rgd->rd_reserved; - __entry->inum = rs->rs_inum; + __entry->inum = container_of(rs, struct gfs2_inode, + i_res)->i_no_addr; __entry->start = gfs2_rbm_to_block(&rs->rs_rbm); __entry->free = rs->rs_free; __entry->func = func; |