From e912a5b66837ee89fb025e67b5efeaa11930c2ce Mon Sep 17 00:00:00 2001 From: Ryusuke Konishi Date: Sat, 14 Aug 2010 13:07:15 +0900 Subject: nilfs2: use root object to get ifile This rewrites functions using ifile so that they get ifile from nilfs_root object, and will remove sbi->s_ifile. Some functions that don't know the root object are extended to receive it from caller. Signed-off-by: Ryusuke Konishi --- fs/nilfs2/inode.c | 48 +++++++++++++++++++++--------------------------- 1 file changed, 21 insertions(+), 27 deletions(-) (limited to 'fs/nilfs2/inode.c') diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c index 7306fc7c496..7e883d5a503 100644 --- a/fs/nilfs2/inode.c +++ b/fs/nilfs2/inode.c @@ -301,7 +301,7 @@ struct inode *nilfs_new_inode(struct inode *dir, int mode) ii->i_state = 1 << NILFS_I_NEW; ii->i_root = root; - err = nilfs_ifile_create_inode(sbi->s_ifile, &ino, &ii->i_bh); + err = nilfs_ifile_create_inode(root->ifile, &ino, &ii->i_bh); if (unlikely(err)) goto failed_ifile_create_inode; /* reference count of i_bh inherits from nilfs_mdt_read_block() */ @@ -358,16 +358,6 @@ struct inode *nilfs_new_inode(struct inode *dir, int mode) return ERR_PTR(err); } -void nilfs_free_inode(struct inode *inode) -{ - struct super_block *sb = inode->i_sb; - struct nilfs_sb_info *sbi = NILFS_SB(sb); - - /* XXX: check error code? Is there any thing I can do? */ - (void) nilfs_ifile_delete_inode(sbi->s_ifile, inode->i_ino); - atomic_dec(&sbi->s_inodes_count); -} - void nilfs_set_inode_flags(struct inode *inode) { unsigned int flags = NILFS_I(inode)->i_flags; @@ -431,7 +421,8 @@ int nilfs_read_inode_common(struct inode *inode, return 0; } -static int __nilfs_read_inode(struct super_block *sb, unsigned long ino, +static int __nilfs_read_inode(struct super_block *sb, + struct nilfs_root *root, unsigned long ino, struct inode *inode) { struct nilfs_sb_info *sbi = NILFS_SB(sb); @@ -441,11 +432,11 @@ static int __nilfs_read_inode(struct super_block *sb, unsigned long ino, int err; down_read(&NILFS_MDT(dat)->mi_sem); /* XXX */ - err = nilfs_ifile_get_inode_block(sbi->s_ifile, ino, &bh); + err = nilfs_ifile_get_inode_block(root->ifile, ino, &bh); if (unlikely(err)) goto bad_inode; - raw_inode = nilfs_ifile_map_inode(sbi->s_ifile, ino, bh); + raw_inode = nilfs_ifile_map_inode(root->ifile, ino, bh); err = nilfs_read_inode_common(inode, raw_inode); if (err) @@ -468,14 +459,14 @@ static int __nilfs_read_inode(struct super_block *sb, unsigned long ino, inode, inode->i_mode, huge_decode_dev(le64_to_cpu(raw_inode->i_device_code))); } - nilfs_ifile_unmap_inode(sbi->s_ifile, ino, bh); + nilfs_ifile_unmap_inode(root->ifile, ino, bh); brelse(bh); up_read(&NILFS_MDT(dat)->mi_sem); /* XXX */ nilfs_set_inode_flags(inode); return 0; failed_unmap: - nilfs_ifile_unmap_inode(sbi->s_ifile, ino, bh); + nilfs_ifile_unmap_inode(root->ifile, ino, bh); brelse(bh); bad_inode: @@ -530,7 +521,7 @@ struct inode *nilfs_iget(struct super_block *sb, struct nilfs_root *root, if (!(inode->i_state & I_NEW)) return inode; - err = __nilfs_read_inode(sb, ino, inode); + err = __nilfs_read_inode(sb, root, ino, inode); if (unlikely(err)) { iget_failed(inode); return ERR_PTR(err); @@ -595,21 +586,20 @@ void nilfs_update_inode(struct inode *inode, struct buffer_head *ibh) { ino_t ino = inode->i_ino; struct nilfs_inode_info *ii = NILFS_I(inode); - struct super_block *sb = inode->i_sb; - struct nilfs_sb_info *sbi = NILFS_SB(sb); + struct inode *ifile = ii->i_root->ifile; struct nilfs_inode *raw_inode; - raw_inode = nilfs_ifile_map_inode(sbi->s_ifile, ino, ibh); + raw_inode = nilfs_ifile_map_inode(ifile, ino, ibh); if (test_and_clear_bit(NILFS_I_NEW, &ii->i_state)) - memset(raw_inode, 0, NILFS_MDT(sbi->s_ifile)->mi_entry_size); + memset(raw_inode, 0, NILFS_MDT(ifile)->mi_entry_size); set_bit(NILFS_I_INODE_DIRTY, &ii->i_state); nilfs_write_inode_common(inode, raw_inode, 0); /* XXX: call with has_bmap = 0 is a workaround to avoid deadlock of bmap. This delays update of i_bmap to just before writing */ - nilfs_ifile_unmap_inode(sbi->s_ifile, ino, ibh); + nilfs_ifile_unmap_inode(ifile, ino, ibh); } #define NILFS_MAX_TRUNCATE_BLOCKS 16384 /* 64MB for 4KB block */ @@ -719,12 +709,16 @@ void nilfs_evict_inode(struct inode *inode) if (inode->i_data.nrpages) truncate_inode_pages(&inode->i_data, 0); + /* TODO: some of the following operations may fail. */ nilfs_truncate_bmap(ii, 0); nilfs_mark_inode_dirty(inode); end_writeback(inode); + + nilfs_ifile_delete_inode(ii->i_root->ifile, inode->i_ino); + atomic_dec(&NILFS_SB(sb)->s_inodes_count); + nilfs_clear_inode(inode); - nilfs_free_inode(inode); - /* nilfs_free_inode() marks inode buffer dirty */ + if (IS_SYNC(inode)) nilfs_set_transaction_flag(NILFS_TI_SYNC); nilfs_transaction_commit(sb); @@ -779,8 +773,8 @@ int nilfs_load_inode_block(struct nilfs_sb_info *sbi, struct inode *inode, spin_lock(&sbi->s_inode_lock); if (ii->i_bh == NULL) { spin_unlock(&sbi->s_inode_lock); - err = nilfs_ifile_get_inode_block(sbi->s_ifile, inode->i_ino, - pbh); + err = nilfs_ifile_get_inode_block(ii->i_root->ifile, + inode->i_ino, pbh); if (unlikely(err)) return err; spin_lock(&sbi->s_inode_lock); @@ -860,7 +854,7 @@ int nilfs_mark_inode_dirty(struct inode *inode) } nilfs_update_inode(inode, ibh); nilfs_mdt_mark_buffer_dirty(ibh); - nilfs_mdt_mark_dirty(sbi->s_ifile); + nilfs_mdt_mark_dirty(NILFS_I(inode)->i_root->ifile); brelse(ibh); return 0; } -- cgit v1.2.3