Re: [PATCH 19/19] xfs: convert directory vector functions to constants

Ben Myers
2013-10-16T23:06:22Z

On Wed, Oct 16, 2013 at 05:52:04PM -0500, Ben Myers wrote:
> On Thu, Oct 17, 2013 at 09:23:17AM +1100, Dave Chinner wrote:
> > On Wed, Oct 16, 2013 at 04:16:15PM -0500, Ben Myers wrote:
> > > On Tue, Oct 15, 2013 at 09:18:05AM +1100, Dave Chinner wrote:
> > > > From: Dave Chinner <dchinner@redhat.com>
> > > >
> > > > Many of the vectorised function calls now take no parameters and
> > > > return a constant value. There is no reason for these to be vectored
> > > > functions, so convert them to constants
> > > >
> > > > Binary sizes:
> > > >
> > > > text data bss dec hex filename
> > > > 794490 96802 1096 892388 d9de4 fs/xfs/xfs.o.orig
> > > > 792986 96802 1096 890884 d9804 fs/xfs/xfs.o.p1
> > > > 792350 96802 1096 890248 d9588 fs/xfs/xfs.o.p2
> > > > 789293 96802 1096 887191 d8997 fs/xfs/xfs.o.p3
> > > > 789005 96802 1096 886903 d8997 fs/xfs/xfs.o.p4
> > > > 789061 96802 1096 886959 d88af fs/xfs/xfs.o.p5
> > > > 789733 96802 1096 887631 d8b4f fs/xfs/xfs.o.p6
> > > > 791421 96802 1096 889319 d91e7 fs/xfs/xfs.o.p7
> > > > 791701 96802 1096 889599 d92ff fs/xfs/xfs.o.p8
> > > > 791205 96802 1096 889103 d91cf fs/xfs/xfs.o.p9
> > > >
> > > > Signed-off-by: Dave Chinner <dchinner@redhat.com>
> > >
> > > Hmmm. This one doesn't seem to apply. Maybe it's just me.
> >
> > Applies without mismatch here on an 3.12-rc5 + oss-xfs/master tree
> > here. What's the reject that you get?
>
> Like so:
>
> $ q pu
> Applying patch xfs-convert-directory-vector-functions-to-constants.patch
> patching file fs/xfs/xfs_da_btree.c
> patching file fs/xfs/xfs_da_format.c
> Hunk #13 FAILED at 571.
> Hunk #14 FAILED at 608.
> Hunk #15 succeeded at 641 (offset -74 lines).
> Hunk #16 FAILED at 729.
> Hunk #17 succeeded at 683 (offset -82 lines).
> Hunk #18 FAILED at 779.
> Hunk #19 succeeded at 728 (offset -87 lines).
> Hunk #20 FAILED at 829.
> 5 out of 20 hunks FAILED -- rejects in file fs/xfs/xfs_da_format.c
> patching file fs/xfs/xfs_dir2.c
> patching file fs/xfs/xfs_dir2.h
> Hunk #4 FAILED at 92.
> 1 out of 4 hunks FAILED -- rejects in file fs/xfs/xfs_dir2.h
> patching file fs/xfs/xfs_dir2_block.c
> patching file fs/xfs/xfs_dir2_data.c
> patching file fs/xfs/xfs_dir2_leaf.c
> patching file fs/xfs/xfs_dir2_node.c
> Hunk #1 FAILED at 274.
> Hunk #2 succeeded at 1267 (offset -1 lines).
> Hunk #3 succeeded at 1299 (offset -1 lines).
> Hunk #4 succeeded at 1408 (offset -1 lines).
> 1 out of 4 hunks FAILED -- rejects in file fs/xfs/xfs_dir2_node.c
> patching file fs/xfs/xfs_dir2_readdir.c
> patching file fs/xfs/xfs_dir2_sf.c
> Patch xfs-convert-directory-vector-functions-to-constants.patch does not apply (enforce with -f)
>
> That's on 74564fb48.

To be more specific, these are the rejects. Maybe I missed a patch.

--- fs/xfs/xfs_da_format.c
+++ fs/xfs/xfs_da_format.c
@@ -571,22 +512,16 @@
* Directory free space block operations
*/
static int
-xfs_dir2_free_hdr_size(void)
-{
- return sizeof(struct xfs_dir2_free_hdr);
-}
-
-static int
xfs_dir2_free_max_bests(struct xfs_mount *mp)
{
- return (mp->m_dirblksize - xfs_dir2_free_hdr_size()) /
+ return (mp->m_dirblksize - sizeof(struct xfs_dir2_free_hdr)) /
sizeof(xfs_dir2_data_off_t);
}

static __be16 *
xfs_dir2_free_bests_p(struct xfs_dir2_free *free)
{
- return (__be16 *)((char *)free + xfs_dir2_free_hdr_size());
+ return (__be16 *)((char *)free + sizeof(struct xfs_dir2_free_hdr));
}

/*
@@ -608,22 +543,16 @@
}

static int
-xfs_dir3_free_hdr_size(void)
-{
- return sizeof(struct xfs_dir3_free_hdr);
-}
-
-static int
xfs_dir3_free_max_bests(struct xfs_mount *mp)
{
- return (mp->m_dirblksize - xfs_dir3_free_hdr_size()) /
+ return (mp->m_dirblksize - sizeof(struct xfs_dir3_free_hdr)) /
sizeof(xfs_dir2_data_off_t);
}

static __be16 *
xfs_dir3_free_bests_p(struct xfs_dir2_free *free)
{
- return (__be16 *)((char *)free + xfs_dir3_free_hdr_size());
+ return (__be16 *)((char *)free + sizeof(struct xfs_dir3_free_hdr));
}

/*
@@ -729,18 +661,18 @@
.data_entry_p = xfs_dir2_data_entry_p,
.data_unused_p = xfs_dir2_data_unused_p,

- .leaf_hdr_size = xfs_dir2_leaf_hdr_size,
+ .leaf_hdr_size = sizeof(struct xfs_dir2_leaf_hdr),
.leaf_hdr_to_disk = xfs_dir2_leaf_hdr_to_disk,
.leaf_hdr_from_disk = xfs_dir2_leaf_hdr_from_disk,
.leaf_max_ents = xfs_dir2_max_leaf_ents,
.leaf_ents_p = xfs_dir2_leaf_ents_p,

- .node_hdr_size = xfs_da2_node_hdr_size,
+ .node_hdr_size = sizeof(struct xfs_da_node_hdr),
.node_hdr_to_disk = xfs_da2_node_hdr_to_disk,
.node_hdr_from_disk = xfs_da2_node_hdr_from_disk,
.node_tree_p = xfs_da2_node_tree_p,

- .free_hdr_size = xfs_dir2_free_hdr_size,
+ .free_hdr_size = sizeof(struct xfs_dir2_free_hdr),
.free_hdr_to_disk = xfs_dir2_free_hdr_to_disk,
.free_hdr_from_disk = xfs_dir2_free_hdr_from_disk,
.free_max_bests = xfs_dir2_free_max_bests,
@@ -779,18 +714,18 @@
.data_entry_p = xfs_dir2_data_entry_p,
.data_unused_p = xfs_dir2_data_unused_p,

- .leaf_hdr_size = xfs_dir2_leaf_hdr_size,
+ .leaf_hdr_size = sizeof(struct xfs_dir2_leaf_hdr),
.leaf_hdr_to_disk = xfs_dir2_leaf_hdr_to_disk,
.leaf_hdr_from_disk = xfs_dir2_leaf_hdr_from_disk,
.leaf_max_ents = xfs_dir2_max_leaf_ents,
.leaf_ents_p = xfs_dir2_leaf_ents_p,

- .node_hdr_size = xfs_da2_node_hdr_size,
+ .node_hdr_size = sizeof(struct xfs_da_node_hdr),
.node_hdr_to_disk = xfs_da2_node_hdr_to_disk,
.node_hdr_from_disk = xfs_da2_node_hdr_from_disk,
.node_tree_p = xfs_da2_node_tree_p,

- .free_hdr_size = xfs_dir2_free_hdr_size,
+ .free_hdr_size = sizeof(struct xfs_dir2_free_hdr),
.free_hdr_to_disk = xfs_dir2_free_hdr_to_disk,
.free_hdr_from_disk = xfs_dir2_free_hdr_from_disk,
.free_max_bests = xfs_dir2_free_max_bests,
@@ -829,35 +767,35 @@
.data_entry_p = xfs_dir3_data_entry_p,
.data_unused_p = xfs_dir3_data_unused_p,

- .leaf_hdr_size = xfs_dir3_leaf_hdr_size,
+ .leaf_hdr_size = sizeof(struct xfs_dir3_leaf_hdr),
.leaf_hdr_to_disk = xfs_dir3_leaf_hdr_to_disk,
.leaf_hdr_from_disk = xfs_dir3_leaf_hdr_from_disk,
.leaf_max_ents = xfs_dir3_max_leaf_ents,
.leaf_ents_p = xfs_dir3_leaf_ents_p,

- .node_hdr_size = xfs_da3_node_hdr_size,
+ .node_hdr_size = sizeof(struct xfs_da3_node_hdr),
.node_hdr_to_disk = xfs_da3_node_hdr_to_disk,
.node_hdr_from_disk = xfs_da3_node_hdr_from_disk,
.node_tree_p = xfs_da3_node_tree_p,

- .free_hdr_size = xfs_dir3_free_hdr_size,
+ .free_hdr_size = sizeof(struct xfs_dir3_free_hdr),
.free_hdr_to_disk = xfs_dir3_free_hdr_to_disk,
.free_hdr_from_disk = xfs_dir3_free_hdr_from_disk,
- .free_max_bests = xfs_dir2_free_max_bests,
+ .free_max_bests = xfs_dir3_free_max_bests,
.free_bests_p = xfs_dir3_free_bests_p,
.db_to_fdb = xfs_dir3_db_to_fdb,
.db_to_fdindex = xfs_dir3_db_to_fdindex,
};

const struct xfs_dir_ops xfs_dir2_nondir_ops = {
- .node_hdr_size = xfs_da2_node_hdr_size,
+ .node_hdr_size = sizeof(struct xfs_da_node_hdr),
.node_hdr_to_disk = xfs_da2_node_hdr_to_disk,
.node_hdr_from_disk = xfs_da2_node_hdr_from_disk,
.node_tree_p = xfs_da2_node_tree_p,
};

const struct xfs_dir_ops xfs_dir3_nondir_ops = {
- .node_hdr_size = xfs_da3_node_hdr_size,
+ .node_hdr_size = sizeof(struct xfs_da3_node_hdr),
.node_hdr_to_disk = xfs_da3_node_hdr_to_disk,
.node_hdr_from_disk = xfs_da3_node_hdr_from_disk,
.node_tree_p = xfs_da3_node_tree_p,
--- fs/xfs/xfs_dir2.h
+++ fs/xfs/xfs_dir2.h
@@ -92,7 +92,7 @@
struct xfs_da_node_entry *
(*node_tree_p)(struct xfs_da_intnode *dap);

- int (*free_hdr_size)(void);
+ int free_hdr_size;
void (*free_hdr_to_disk)(struct xfs_dir2_free *to,
struct xfs_dir3_icfree_hdr *from);
void (*free_hdr_from_disk)(struct xfs_dir3_icfree_hdr *to,
--- fs/xfs/xfs_dir2_node.c
+++ fs/xfs/xfs_dir2_node.c
@@ -274,7 +274,7 @@
ASSERT(free->hdr.magic == cpu_to_be32(XFS_DIR2_FREE_MAGIC) ||
free->hdr.magic == cpu_to_be32(XFS_DIR3_FREE_MAGIC));
#endif
- xfs_trans_log_buf(tp, bp, 0, dp->d_ops->free_hdr_size() - 1);
+ xfs_trans_log_buf(tp, bp, 0, dp->d_ops->free_hdr_size - 1);
}

/*