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authorSteven Whitehouse <swhiteho@redhat.com>2011-08-15 14:20:36 +0100
committerSteven Whitehouse <swhiteho@redhat.com>2011-10-21 12:39:26 +0100
commitab9bbda0204dfd0e5342562d9979d1241b14ea5f (patch)
tree621e623d99fbef1432da17b6390c92d7f13224a4 /fs/gfs2/dir.c
parentf18185291d605ea9e442e00e2cf6c917a84d9837 (diff)
downloadop-kernel-dev-ab9bbda0204dfd0e5342562d9979d1241b14ea5f.zip
op-kernel-dev-ab9bbda0204dfd0e5342562d9979d1241b14ea5f.tar.gz
GFS2: Use ->dirty_inode()
The aim of this patch is to use the newly enhanced ->dirty_inode() super block operation to deal with atime updates, rather than piggy backing that code into ->write_inode() as is currently done. The net result is a simplification of the code in various places and a reduction of the number of gfs2_dinode_out() calls since this is now implied by ->dirty_inode(). Some of the mark_inode_dirty() calls have been moved under glocks in order to take advantage of then being able to avoid locking in ->dirty_inode() when we already have suitable locks. One consequence is that generic_write_end() now correctly deals with file size updates, so that we do not need a separate check for that afterwards. This also, indirectly, means that fdatasync should work correctly on GFS2 - the current code always syncs the metadata whether it needs to or not. Has survived testing with postmark (with and without atime) and also fsx. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/dir.c')
-rw-r--r--fs/gfs2/dir.c10
1 files changed, 1 insertions, 9 deletions
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index 2045d70..898e62e 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -1681,7 +1681,6 @@ int gfs2_dir_del(struct gfs2_inode *dip, const struct dentry *dentry)
const struct qstr *name = &dentry->d_name;
struct gfs2_dirent *dent, *prev = NULL;
struct buffer_head *bh;
- int error;
/* Returns _either_ the entry (if its first in block) or the
previous entry otherwise */
@@ -1710,22 +1709,15 @@ int gfs2_dir_del(struct gfs2_inode *dip, const struct dentry *dentry)
}
brelse(bh);
- error = gfs2_meta_inode_buffer(dip, &bh);
- if (error)
- return error;
-
if (!dip->i_entries)
gfs2_consist_inode(dip);
- gfs2_trans_add_bh(dip->i_gl, bh, 1);
dip->i_entries--;
dip->i_inode.i_mtime = dip->i_inode.i_ctime = CURRENT_TIME;
if (S_ISDIR(dentry->d_inode->i_mode))
drop_nlink(&dip->i_inode);
- gfs2_dinode_out(dip, bh->b_data);
- brelse(bh);
mark_inode_dirty(&dip->i_inode);
- return error;
+ return 0;
}
/**
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