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merge ext2 delete_inode and clear_inode, switch to ->evict_inode() 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2010-06-04 23:32:28 -04:00
parent 3937871d91
commit 72edc4d087
4 changed files with 36 additions and 37 deletions
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2
fs/ext2/ext2.h
View File

@ -119,7 +119,7 @@ extern unsigned long ext2_count_free (struct buffer_head *, unsigned);
/* inode.c */
extern struct inode *ext2_iget (struct super_block *, unsigned long);
extern int ext2_write_inode (struct inode *, struct writeback_control *);
extern void ext2_delete_inode (struct inode *);
extern void ext2_evict_inode(struct inode *);
extern int ext2_sync_inode (struct inode *);
extern int ext2_get_block(struct inode *, sector_t, struct buffer_head *, int);
extern int ext2_setattr (struct dentry *, struct iattr *);

13
fs/ext2/ialloc.c
View File

@ -118,19 +118,14 @@ void ext2_free_inode (struct inode * inode)
* Note: we must free any quota before locking the superblock,
* as writing the quota to disk may need the lock as well.
*/
if (!is_bad_inode(inode)) {
/* Quota is already initialized in iput() */
ext2_xattr_delete_inode(inode);
dquot_free_inode(inode);
dquot_drop(inode);
}
/* Quota is already initialized in iput() */
ext2_xattr_delete_inode(inode);
dquot_free_inode(inode);
dquot_drop(inode);
es = EXT2_SB(sb)->s_es;
is_directory = S_ISDIR(inode->i_mode);
/* Do this BEFORE marking the inode not in use or returning an error */
clear_inode (inode);
if (ino < EXT2_FIRST_INO(sb) ||
ino > le32_to_cpu(es->s_inodes_count)) {
ext2_error (sb, "ext2_free_inode",

44
fs/ext2/inode.c
View File

@ -69,26 +69,42 @@ static void ext2_write_failed(struct address_space *mapping, loff_t to)
/*
* Called at the last iput() if i_nlink is zero.
*/
void ext2_delete_inode (struct inode * inode)
void ext2_evict_inode(struct inode * inode)
{
if (!is_bad_inode(inode))
struct ext2_block_alloc_info *rsv;
int want_delete = 0;
if (!inode->i_nlink && !is_bad_inode(inode)) {
want_delete = 1;
dquot_initialize(inode);
} else {
dquot_drop(inode);
}
truncate_inode_pages(&inode->i_data, 0);
if (is_bad_inode(inode))
goto no_delete;
EXT2_I(inode)->i_dtime = get_seconds();
mark_inode_dirty(inode);
__ext2_write_inode(inode, inode_needs_sync(inode));
if (want_delete) {
/* set dtime */
EXT2_I(inode)->i_dtime = get_seconds();
mark_inode_dirty(inode);
__ext2_write_inode(inode, inode_needs_sync(inode));
/* truncate to 0 */
inode->i_size = 0;
if (inode->i_blocks)
ext2_truncate_blocks(inode, 0);
}
inode->i_size = 0;
if (inode->i_blocks)
ext2_truncate_blocks(inode, 0);
ext2_free_inode (inode);
invalidate_inode_buffers(inode);
end_writeback(inode);
return;
no_delete:
clear_inode(inode); /* We must guarantee clearing of inode... */
ext2_discard_reservation(inode);
rsv = EXT2_I(inode)->i_block_alloc_info;
EXT2_I(inode)->i_block_alloc_info = NULL;
if (unlikely(rsv))
kfree(rsv);
if (want_delete)
ext2_free_inode(inode);
}
typedef struct {

14
fs/ext2/super.c
View File

@ -195,17 +195,6 @@ static void destroy_inodecache(void)
kmem_cache_destroy(ext2_inode_cachep);
}
static void ext2_clear_inode(struct inode *inode)
{
struct ext2_block_alloc_info *rsv = EXT2_I(inode)->i_block_alloc_info;
dquot_drop(inode);
ext2_discard_reservation(inode);
EXT2_I(inode)->i_block_alloc_info = NULL;
if (unlikely(rsv))
kfree(rsv);
}
static int ext2_show_options(struct seq_file *seq, struct vfsmount *vfs)
{
struct super_block *sb = vfs->mnt_sb;
@ -299,13 +288,12 @@ static const struct super_operations ext2_sops = {
.alloc_inode = ext2_alloc_inode,
.destroy_inode = ext2_destroy_inode,
.write_inode = ext2_write_inode,
.delete_inode = ext2_delete_inode,
.evict_inode = ext2_evict_inode,
.put_super = ext2_put_super,
.write_super = ext2_write_super,
.sync_fs = ext2_sync_fs,
.statfs = ext2_statfs,
.remount_fs = ext2_remount,
.clear_inode = ext2_clear_inode,
.show_options = ext2_show_options,
#ifdef CONFIG_QUOTA
.quota_read = ext2_quota_read,