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authorAl Viro <viro@zeniv.linux.org.uk>2010-06-06 09:50:39 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2010-08-09 16:48:04 -0400
commit9df2f85128def59185f8a1c584f8af41df17405a (patch)
tree42a861708d9180d3dd838491af6a6be5de526614 /fs/bfs
parentac14a95b5239d37b6082c3791b88d7ab4e8e444c (diff)
downloadlinux-9df2f85128def59185f8a1c584f8af41df17405a.tar.gz
switch bfs to ->evict_inode(), clean up
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/bfs')
-rw-r--r--fs/bfs/inode.c70
1 files changed, 32 insertions, 38 deletions
diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c
index f22a7d3dc36..0499822b156 100644
--- a/fs/bfs/inode.c
+++ b/fs/bfs/inode.c
@@ -99,6 +99,24 @@ error:
return ERR_PTR(-EIO);
}
+static struct bfs_inode *find_inode(struct super_block *sb, u16 ino, struct buffer_head **p)
+{
+ if ((ino < BFS_ROOT_INO) || (ino > BFS_SB(sb)->si_lasti)) {
+ printf("Bad inode number %s:%08x\n", sb->s_id, ino);
+ return ERR_PTR(-EIO);
+ }
+
+ ino -= BFS_ROOT_INO;
+
+ *p = sb_bread(sb, 1 + ino / BFS_INODES_PER_BLOCK);
+ if (!*p) {
+ printf("Unable to read inode %s:%08x\n", sb->s_id, ino);
+ return ERR_PTR(-EIO);
+ }
+
+ return (struct bfs_inode *)(*p)->b_data + ino % BFS_INODES_PER_BLOCK;
+}
+
static int bfs_write_inode(struct inode *inode, struct writeback_control *wbc)
{
struct bfs_sb_info *info = BFS_SB(inode->i_sb);
@@ -106,28 +124,15 @@ static int bfs_write_inode(struct inode *inode, struct writeback_control *wbc)
unsigned long i_sblock;
struct bfs_inode *di;
struct buffer_head *bh;
- int block, off;
int err = 0;
dprintf("ino=%08x\n", ino);
- if ((ino < BFS_ROOT_INO) || (ino > BFS_SB(inode->i_sb)->si_lasti)) {
- printf("Bad inode number %s:%08x\n", inode->i_sb->s_id, ino);
- return -EIO;
- }
+ di = find_inode(inode->i_sb, ino, &bh);
+ if (IS_ERR(di))
+ return PTR_ERR(di);
mutex_lock(&info->bfs_lock);
- block = (ino - BFS_ROOT_INO) / BFS_INODES_PER_BLOCK + 1;
- bh = sb_bread(inode->i_sb, block);
- if (!bh) {
- printf("Unable to read inode %s:%08x\n",
- inode->i_sb->s_id, ino);
- mutex_unlock(&info->bfs_lock);
- return -EIO;
- }
-
- off = (ino - BFS_ROOT_INO) % BFS_INODES_PER_BLOCK;
- di = (struct bfs_inode *)bh->b_data + off;
if (ino == BFS_ROOT_INO)
di->i_vtype = cpu_to_le32(BFS_VDIR);
@@ -158,12 +163,11 @@ static int bfs_write_inode(struct inode *inode, struct writeback_control *wbc)
return err;
}
-static void bfs_delete_inode(struct inode *inode)
+static void bfs_evict_inode(struct inode *inode)
{
unsigned long ino = inode->i_ino;
struct bfs_inode *di;
struct buffer_head *bh;
- int block, off;
struct super_block *s = inode->i_sb;
struct bfs_sb_info *info = BFS_SB(s);
struct bfs_inode_info *bi = BFS_I(inode);
@@ -171,28 +175,19 @@ static void bfs_delete_inode(struct inode *inode)
dprintf("ino=%08lx\n", ino);
truncate_inode_pages(&inode->i_data, 0);
+ invalidate_inode_buffers(inode);
+ end_writeback(inode);
- if ((ino < BFS_ROOT_INO) || (ino > info->si_lasti)) {
- printf("invalid ino=%08lx\n", ino);
+ if (inode->i_nlink)
return;
- }
-
- inode->i_size = 0;
- inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
- mutex_lock(&info->bfs_lock);
- mark_inode_dirty(inode);
- block = (ino - BFS_ROOT_INO) / BFS_INODES_PER_BLOCK + 1;
- bh = sb_bread(s, block);
- if (!bh) {
- printf("Unable to read inode %s:%08lx\n",
- inode->i_sb->s_id, ino);
- mutex_unlock(&info->bfs_lock);
+ di = find_inode(s, inode->i_ino, &bh);
+ if (IS_ERR(di))
return;
- }
- off = (ino - BFS_ROOT_INO) % BFS_INODES_PER_BLOCK;
- di = (struct bfs_inode *)bh->b_data + off;
- memset((void *)di, 0, sizeof(struct bfs_inode));
+
+ mutex_lock(&info->bfs_lock);
+ /* clear on-disk inode */
+ memset(di, 0, sizeof(struct bfs_inode));
mark_buffer_dirty(bh);
brelse(bh);
@@ -214,7 +209,6 @@ static void bfs_delete_inode(struct inode *inode)
mark_buffer_dirty(info->si_sbh);
}
mutex_unlock(&info->bfs_lock);
- clear_inode(inode);
}
static int bfs_sync_fs(struct super_block *sb, int wait)
@@ -319,7 +313,7 @@ static const struct super_operations bfs_sops = {
.alloc_inode = bfs_alloc_inode,
.destroy_inode = bfs_destroy_inode,
.write_inode = bfs_write_inode,
- .delete_inode = bfs_delete_inode,
+ .evict_inode = bfs_evict_inode,
.put_super = bfs_put_super,
.write_super = bfs_write_super,
.sync_fs = bfs_sync_fs,