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| author | Al Viro <viro@zeniv.linux.org.uk> | 2010-06-07 18:22:31 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2010-08-09 22:48:26 +0200 |
| commit | 8e22c1a4e429e9facf309c7e7a03ba9cdfd7b106 (patch) | |
| tree | cf708706e742d96fed8bf997feb279dc4f9a7426 /fs/logfs/inode.c | |
| parent | convert nilfs2 to ->evict_inode() (diff) | |
| download | linux-8e22c1a4e429e9facf309c7e7a03ba9cdfd7b106.tar.xz linux-8e22c1a4e429e9facf309c7e7a03ba9cdfd7b106.zip | |
logfs: get rid of magical inodes
ordering problems at ->kill_sb() time are solved by doing iput()
of these suckers in ->put_super()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/logfs/inode.c')
| -rw-r--r-- | fs/logfs/inode.c | 44 |
1 files changed, 16 insertions, 28 deletions
diff --git a/fs/logfs/inode.c b/fs/logfs/inode.c index f602e230e162..7811a2a35935 100644 --- a/fs/logfs/inode.c +++ b/fs/logfs/inode.c @@ -235,33 +235,21 @@ static struct inode *logfs_alloc_inode(struct super_block *sb) * purpose is to create a new inode that will not trigger the warning if such * an inode is still in use. An ugly hack, no doubt. Suggections for * improvement are welcome. + * + * AV: that's what ->put_super() is for... */ struct inode *logfs_new_meta_inode(struct super_block *sb, u64 ino) { struct inode *inode; - inode = logfs_alloc_inode(sb); + inode = new_inode(sb); if (!inode) return ERR_PTR(-ENOMEM); inode->i_mode = S_IFREG; inode->i_ino = ino; - inode->i_sb = sb; - - /* This is a blatant copy of alloc_inode code. We'd need alloc_inode - * to be nonstatic, alas. */ - { - struct address_space * const mapping = &inode->i_data; - - mapping->a_ops = &logfs_reg_aops; - mapping->host = inode; - mapping->flags = 0; - mapping_set_gfp_mask(mapping, GFP_NOFS); - mapping->assoc_mapping = NULL; - mapping->backing_dev_info = &default_backing_dev_info; - inode->i_mapping = mapping; - inode->i_nlink = 1; - } + inode->i_data.a_ops = &logfs_reg_aops; + mapping_set_gfp_mask(&inode->i_data, GFP_NOFS); return inode; } @@ -277,7 +265,7 @@ struct inode *logfs_read_meta_inode(struct super_block *sb, u64 ino) err = logfs_read_inode(inode); if (err) { - destroy_meta_inode(inode); + iput(inode); return ERR_PTR(err); } logfs_inode_setops(inode); @@ -298,16 +286,6 @@ static int logfs_write_inode(struct inode *inode, struct writeback_control *wbc) return ret; } -void destroy_meta_inode(struct inode *inode) -{ - if (inode) { - if (inode->i_data.nrpages) - truncate_inode_pages(&inode->i_data, 0); - logfs_clear_inode(inode); - kmem_cache_free(logfs_inode_cache, logfs_inode(inode)); - } -} - /* called with inode_lock held */ static void logfs_drop_inode(struct inode *inode) { @@ -384,12 +362,22 @@ static int logfs_sync_fs(struct super_block *sb, int wait) return 0; } +static void logfs_put_super(struct super_block *sb) +{ + struct logfs_super *super = logfs_super(sb); + /* kill the meta-inodes */ + iput(super->s_master_inode); + iput(super->s_segfile_inode); + iput(super->s_mapping_inode); +} + const struct super_operations logfs_super_operations = { .alloc_inode = logfs_alloc_inode, .clear_inode = logfs_clear_inode, .delete_inode = logfs_delete_inode, .destroy_inode = logfs_destroy_inode, .drop_inode = logfs_drop_inode, + .put_super = logfs_put_super, .write_inode = logfs_write_inode, .statfs = logfs_statfs, .sync_fs = logfs_sync_fs, |