From: Christoph Hellwig <hch@lst.de>
To: viro@zeniv.linux.org.uk, zippel@linux-m68k.org
Cc: linux-fsdevel@vger.kernel.org
Subject: [PATCH 4/14] hfsplus: clean up hfsplus_write_inode
Date: Fri, 1 Oct 2010 09:26:00 +0200 [thread overview]
Message-ID: <20101001072600.GD27055@lst.de> (raw)
In-Reply-To: <20101001072500.GA26972@lst.de>
Add a new hfsplus_system_write_inode for writing the special system inodes
and streamline the fastpath write_inode code.
Signed-off-by: Christoph Hellwig <hch@tuxera.com>
Index: linux-2.6/fs/hfsplus/super.c
===================================================================
--- linux-2.6.orig/fs/hfsplus/super.c 2010-09-30 12:06:35.517782663 +0200
+++ linux-2.6/fs/hfsplus/super.c 2010-09-30 12:07:21.427782656 +0200
@@ -89,63 +89,57 @@ struct inode *hfsplus_iget(struct super_
return inode;
}
-static int hfsplus_write_inode(struct inode *inode,
- struct writeback_control *wbc)
+static int hfsplus_system_write_inode(struct inode *inode)
{
struct hfsplus_sb_info *sbi = HFSPLUS_SB(inode->i_sb);
- struct hfsplus_vh *vhdr;
- int ret = 0;
+ struct hfsplus_vh *vhdr = sbi->s_vhdr;
+ struct hfsplus_fork_raw *fork;
+ struct hfs_btree *tree = NULL;
- dprint(DBG_INODE, "hfsplus_write_inode: %lu\n", inode->i_ino);
- hfsplus_ext_write_extent(inode);
- if (inode->i_ino >= HFSPLUS_FIRSTUSER_CNID) {
- return hfsplus_cat_write_inode(inode);
- }
- vhdr = sbi->s_vhdr;
switch (inode->i_ino) {
- case HFSPLUS_ROOT_CNID:
- ret = hfsplus_cat_write_inode(inode);
- break;
case HFSPLUS_EXT_CNID:
- if (vhdr->ext_file.total_size != cpu_to_be64(inode->i_size)) {
- sbi->flags |= HFSPLUS_SB_WRITEBACKUP;
- inode->i_sb->s_dirt = 1;
- }
- hfsplus_inode_write_fork(inode, &vhdr->ext_file);
- hfs_btree_write(sbi->ext_tree);
+ fork = &vhdr->ext_file;
+ tree = sbi->ext_tree;
break;
case HFSPLUS_CAT_CNID:
- if (vhdr->cat_file.total_size != cpu_to_be64(inode->i_size)) {
- sbi->flags |= HFSPLUS_SB_WRITEBACKUP;
- inode->i_sb->s_dirt = 1;
- }
- hfsplus_inode_write_fork(inode, &vhdr->cat_file);
- hfs_btree_write(sbi->cat_tree);
+ fork = &vhdr->cat_file;
+ tree = sbi->cat_tree;
break;
case HFSPLUS_ALLOC_CNID:
- if (vhdr->alloc_file.total_size != cpu_to_be64(inode->i_size)) {
- sbi->flags |= HFSPLUS_SB_WRITEBACKUP;
- inode->i_sb->s_dirt = 1;
- }
- hfsplus_inode_write_fork(inode, &vhdr->alloc_file);
+ fork = &vhdr->alloc_file;
break;
case HFSPLUS_START_CNID:
- if (vhdr->start_file.total_size != cpu_to_be64(inode->i_size)) {
- sbi->flags |= HFSPLUS_SB_WRITEBACKUP;
- inode->i_sb->s_dirt = 1;
- }
- hfsplus_inode_write_fork(inode, &vhdr->start_file);
+ fork = &vhdr->start_file;
break;
case HFSPLUS_ATTR_CNID:
- if (vhdr->attr_file.total_size != cpu_to_be64(inode->i_size)) {
- sbi->flags |= HFSPLUS_SB_WRITEBACKUP;
- inode->i_sb->s_dirt = 1;
- }
- hfsplus_inode_write_fork(inode, &vhdr->attr_file);
- hfs_btree_write(sbi->attr_tree);
- break;
+ fork = &vhdr->attr_file;
+ tree = sbi->attr_tree;
+ default:
+ return -EIO;
+ }
+
+ if (fork->total_size != cpu_to_be64(inode->i_size)) {
+ sbi->flags |= HFSPLUS_SB_WRITEBACKUP;
+ inode->i_sb->s_dirt = 1;
}
- return ret;
+ hfsplus_inode_write_fork(inode, fork);
+ if (tree)
+ hfs_btree_write(tree);
+ return 0;
+}
+
+static int hfsplus_write_inode(struct inode *inode,
+ struct writeback_control *wbc)
+{
+ dprint(DBG_INODE, "hfsplus_write_inode: %lu\n", inode->i_ino);
+
+ hfsplus_ext_write_extent(inode);
+
+ if (inode->i_ino >= HFSPLUS_FIRSTUSER_CNID ||
+ inode->i_ino == HFSPLUS_ROOT_CNID)
+ return hfsplus_cat_write_inode(inode);
+ else
+ return hfsplus_system_write_inode(inode);
}
static void hfsplus_evict_inode(struct inode *inode)
next prev parent reply other threads:[~2010-10-01 7:26 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-01 7:25 [PATCH 0/14] more hfsplus updates Christoph Hellwig
2010-10-01 7:25 ` [PATCH 1/14] hfsplus: fix HFSPLUS_SB calling convention Christoph Hellwig
2010-10-01 7:25 ` [PATCH 2/14] hfsplus: fix HFSPLUS_I " Christoph Hellwig
2010-10-01 7:25 ` [PATCH 3/14] hfsplus: clean up hfsplus_iget Christoph Hellwig
2010-10-01 7:26 ` Christoph Hellwig [this message]
2010-10-01 7:26 ` [PATCH 5/14] hfsplus: merge mknod/mkdir/creat Christoph Hellwig
2010-10-01 7:26 ` [PATCH 6/14] hfsplus: fix error handling in hfsplus_symlink Christoph Hellwig
2010-10-01 7:26 ` [PATCH 7/14] hfsplus: do not cache and write next_alloc Christoph Hellwig
2010-10-01 7:26 ` [PATCH 8/14] hfsplus: remove the rsrc_inodes list Christoph Hellwig
2010-10-01 7:26 ` [PATCH 9/14] hfsplus: add per-superblock lock for volume header updates Christoph Hellwig
2010-10-01 7:27 ` [PATCH 10/14] hfsplus: use atomic bitops for the superblock flags Christoph Hellwig
2010-10-01 7:27 ` [PATCH 11/14] hfsplus: protect readdir against removals from open_dir_list Christoph Hellwig
2010-10-01 7:27 ` [PATCH 12/14] hfsplus: add missing extent locking in hfsplus_write_inode Christoph Hellwig
2010-10-01 7:27 ` [PATCH 13/14] hfsplus: convert tree_lock to mutex Christoph Hellwig
2010-10-01 7:28 ` [PATCH 14/14] hfsplus: fix rename over directories Christoph Hellwig
2010-10-01 14:06 ` [PATCH 0/14] more hfsplus updates Christoph Hellwig
2010-10-01 14:16 ` Christoph Hellwig
2010-10-02 4:09 ` Stephen Rothwell
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