ext4: fixup ext4_fc_track_* functions' signature
Firstly, pass handle to all ext4_fc_track_* functions and use transaction id found in handle->h_transaction->h_tid for tracking fast commit updates. Secondly, don't pass inode to ext4_fc_track_link/create/unlink functions. inode can be found inside these functions as d_inode(dentry). However, rename path is an exeception. That's because in that case, we need inode that's not same as d_inode(dentry). To handle that, add a couple of low-level wrapper functions that take inode and dentry as arguments. Suggested-by: Jan Kara <jack@suse.cz> Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com> Link: https://lore.kernel.org/r/20201106035911.1942128-5-harshadshirwadkar@gmail.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Harshad Shirwadkar
Theodore Ts'o
Родитель
5b552ad70c
Коммит
a80f7fcf18
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@ -2738,12 +2738,16 @@ extern void ext4_end_bitmap_read(struct buffer_head *bh, int uptodate);
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int ext4_fc_info_show(struct seq_file *seq, void *v);
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void ext4_fc_init(struct super_block *sb, journal_t *journal);
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void ext4_fc_init_inode(struct inode *inode);
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void ext4_fc_track_range(struct inode *inode, ext4_lblk_t start,
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void ext4_fc_track_range(handle_t *handle, struct inode *inode, ext4_lblk_t start,
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ext4_lblk_t end);
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void ext4_fc_track_unlink(struct inode *inode, struct dentry *dentry);
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void ext4_fc_track_link(struct inode *inode, struct dentry *dentry);
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void ext4_fc_track_create(struct inode *inode, struct dentry *dentry);
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void ext4_fc_track_inode(struct inode *inode);
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void __ext4_fc_track_unlink(handle_t *handle, struct inode *inode,
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struct dentry *dentry);
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void __ext4_fc_track_link(handle_t *handle, struct inode *inode,
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struct dentry *dentry);
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void ext4_fc_track_unlink(handle_t *handle, struct dentry *dentry);
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void ext4_fc_track_link(handle_t *handle, struct dentry *dentry);
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void ext4_fc_track_create(handle_t *handle, struct dentry *dentry);
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void ext4_fc_track_inode(handle_t *handle, struct inode *inode);
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void ext4_fc_mark_ineligible(struct super_block *sb, int reason);
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void ext4_fc_start_ineligible(struct super_block *sb, int reason);
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void ext4_fc_stop_ineligible(struct super_block *sb);
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@ -3459,7 +3463,7 @@ extern int ext4_handle_dirty_dirblock(handle_t *handle, struct inode *inode,
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extern int ext4_ci_compare(const struct inode *parent,
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const struct qstr *fname,
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const struct qstr *entry, bool quick);
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extern int __ext4_unlink(struct inode *dir, const struct qstr *d_name,
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extern int __ext4_unlink(handle_t *handle, struct inode *dir, const struct qstr *d_name,
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struct inode *inode);
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extern int __ext4_link(struct inode *dir, struct inode *inode,
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struct dentry *dentry);
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@ -4599,7 +4599,7 @@ static long ext4_zero_range(struct file *file, loff_t offset,
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ret = ext4_mark_inode_dirty(handle, inode);
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if (unlikely(ret))
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goto out_handle;
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ext4_fc_track_range(inode, offset >> inode->i_sb->s_blocksize_bits,
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ext4_fc_track_range(handle, inode, offset >> inode->i_sb->s_blocksize_bits,
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(offset + len - 1) >> inode->i_sb->s_blocksize_bits);
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/* Zero out partial block at the edges of the range */
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ret = ext4_zero_partial_blocks(handle, inode, offset, len);
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@ -323,13 +323,14 @@ static inline int ext4_fc_is_ineligible(struct super_block *sb)
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* If enqueue is set, this function enqueues the inode in fast commit list.
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*/
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static int ext4_fc_track_template(
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struct inode *inode, int (*__fc_track_fn)(struct inode *, void *, bool),
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handle_t *handle, struct inode *inode,
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int (*__fc_track_fn)(struct inode *, void *, bool),
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void *args, int enqueue)
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{
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tid_t running_txn_tid;
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bool update = false;
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struct ext4_inode_info *ei = EXT4_I(inode);
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struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
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tid_t tid = 0;
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int ret;
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if (!test_opt2(inode->i_sb, JOURNAL_FAST_COMMIT) ||
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@ -339,15 +340,13 @@ static int ext4_fc_track_template(
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if (ext4_fc_is_ineligible(inode->i_sb))
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return -EINVAL;
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running_txn_tid = sbi->s_journal ?
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sbi->s_journal->j_commit_sequence + 1 : 0;
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tid = handle->h_transaction->t_tid;
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mutex_lock(&ei->i_fc_lock);
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if (running_txn_tid == ei->i_sync_tid) {
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if (tid == ei->i_sync_tid) {
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update = true;
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} else {
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ext4_fc_reset_inode(inode);
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ei->i_sync_tid = running_txn_tid;
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ei->i_sync_tid = tid;
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}
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ret = __fc_track_fn(inode, args, update);
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mutex_unlock(&ei->i_fc_lock);
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@ -422,7 +421,8 @@ static int __track_dentry_update(struct inode *inode, void *arg, bool update)
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return 0;
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}
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void ext4_fc_track_unlink(struct inode *inode, struct dentry *dentry)
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void __ext4_fc_track_unlink(handle_t *handle,
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struct inode *inode, struct dentry *dentry)
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{
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struct __track_dentry_update_args args;
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int ret;
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@ -430,12 +430,18 @@ void ext4_fc_track_unlink(struct inode *inode, struct dentry *dentry)
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args.dentry = dentry;
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args.op = EXT4_FC_TAG_UNLINK;
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ret = ext4_fc_track_template(inode, __track_dentry_update,
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ret = ext4_fc_track_template(handle, inode, __track_dentry_update,
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(void *)&args, 0);
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trace_ext4_fc_track_unlink(inode, dentry, ret);
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}
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void ext4_fc_track_link(struct inode *inode, struct dentry *dentry)
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void ext4_fc_track_unlink(handle_t *handle, struct dentry *dentry)
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{
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__ext4_fc_track_unlink(handle, d_inode(dentry), dentry);
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}
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void __ext4_fc_track_link(handle_t *handle,
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struct inode *inode, struct dentry *dentry)
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{
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struct __track_dentry_update_args args;
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int ret;
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@ -443,20 +449,26 @@ void ext4_fc_track_link(struct inode *inode, struct dentry *dentry)
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args.dentry = dentry;
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args.op = EXT4_FC_TAG_LINK;
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ret = ext4_fc_track_template(inode, __track_dentry_update,
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ret = ext4_fc_track_template(handle, inode, __track_dentry_update,
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(void *)&args, 0);
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trace_ext4_fc_track_link(inode, dentry, ret);
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}
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void ext4_fc_track_create(struct inode *inode, struct dentry *dentry)
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void ext4_fc_track_link(handle_t *handle, struct dentry *dentry)
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{
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__ext4_fc_track_link(handle, d_inode(dentry), dentry);
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}
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void ext4_fc_track_create(handle_t *handle, struct dentry *dentry)
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{
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struct __track_dentry_update_args args;
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struct inode *inode = d_inode(dentry);
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int ret;
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args.dentry = dentry;
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args.op = EXT4_FC_TAG_CREAT;
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ret = ext4_fc_track_template(inode, __track_dentry_update,
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ret = ext4_fc_track_template(handle, inode, __track_dentry_update,
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(void *)&args, 0);
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trace_ext4_fc_track_create(inode, dentry, ret);
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}
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@ -472,14 +484,14 @@ static int __track_inode(struct inode *inode, void *arg, bool update)
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return 0;
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}
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void ext4_fc_track_inode(struct inode *inode)
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void ext4_fc_track_inode(handle_t *handle, struct inode *inode)
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{
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int ret;
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if (S_ISDIR(inode->i_mode))
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return;
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ret = ext4_fc_track_template(inode, __track_inode, NULL, 1);
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ret = ext4_fc_track_template(handle, inode, __track_inode, NULL, 1);
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trace_ext4_fc_track_inode(inode, ret);
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}
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@ -515,7 +527,7 @@ static int __track_range(struct inode *inode, void *arg, bool update)
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return 0;
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}
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void ext4_fc_track_range(struct inode *inode, ext4_lblk_t start,
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void ext4_fc_track_range(handle_t *handle, struct inode *inode, ext4_lblk_t start,
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ext4_lblk_t end)
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{
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struct __track_range_args args;
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@ -527,7 +539,7 @@ void ext4_fc_track_range(struct inode *inode, ext4_lblk_t start,
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args.start = start;
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args.end = end;
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ret = ext4_fc_track_template(inode, __track_range, &args, 1);
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ret = ext4_fc_track_template(handle, inode, __track_range, &args, 1);
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trace_ext4_fc_track_range(inode, start, end, ret);
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}
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@ -1263,7 +1275,7 @@ static int ext4_fc_replay_unlink(struct super_block *sb, struct ext4_fc_tl *tl)
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return 0;
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}
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ret = __ext4_unlink(old_parent, &entry, inode);
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ret = __ext4_unlink(NULL, old_parent, &entry, inode);
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/* -ENOENT ok coz it might not exist anymore. */
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if (ret == -ENOENT)
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ret = 0;
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@ -732,7 +732,7 @@ out_sem:
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if (ret)
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return ret;
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}
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ext4_fc_track_range(inode, map->m_lblk,
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ext4_fc_track_range(handle, inode, map->m_lblk,
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map->m_lblk + map->m_len - 1);
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}
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@ -4111,7 +4111,7 @@ int ext4_punch_hole(struct inode *inode, loff_t offset, loff_t length)
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up_write(&EXT4_I(inode)->i_data_sem);
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}
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ext4_fc_track_range(inode, first_block, stop_block);
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ext4_fc_track_range(handle, inode, first_block, stop_block);
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if (IS_SYNC(inode))
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ext4_handle_sync(handle);
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@ -5444,14 +5444,14 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
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}
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if (shrink)
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ext4_fc_track_range(inode,
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ext4_fc_track_range(handle, inode,
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(attr->ia_size > 0 ? attr->ia_size - 1 : 0) >>
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inode->i_sb->s_blocksize_bits,
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(oldsize > 0 ? oldsize - 1 : 0) >>
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inode->i_sb->s_blocksize_bits);
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else
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ext4_fc_track_range(
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inode,
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handle, inode,
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(oldsize > 0 ? oldsize - 1 : oldsize) >>
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inode->i_sb->s_blocksize_bits,
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(attr->ia_size > 0 ? attr->ia_size - 1 : 0) >>
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@ -5701,7 +5701,7 @@ int ext4_mark_iloc_dirty(handle_t *handle,
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put_bh(iloc->bh);
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return -EIO;
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}
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ext4_fc_track_inode(inode);
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ext4_fc_track_inode(handle, inode);
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if (IS_I_VERSION(inode))
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inode_inc_iversion(inode);
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@ -2606,7 +2606,7 @@ static int ext4_create(struct inode *dir, struct dentry *dentry, umode_t mode,
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bool excl)
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{
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handle_t *handle;
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struct inode *inode, *inode_save;
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struct inode *inode;
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int err, credits, retries = 0;
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err = dquot_initialize(dir);
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@ -2624,11 +2624,9 @@ retry:
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inode->i_op = &ext4_file_inode_operations;
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inode->i_fop = &ext4_file_operations;
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ext4_set_aops(inode);
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inode_save = inode;
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ihold(inode_save);
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err = ext4_add_nondir(handle, dentry, &inode);
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ext4_fc_track_create(inode_save, dentry);
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iput(inode_save);
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if (!err)
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ext4_fc_track_create(handle, dentry);
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}
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if (handle)
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ext4_journal_stop(handle);
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@ -2643,7 +2641,7 @@ static int ext4_mknod(struct inode *dir, struct dentry *dentry,
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umode_t mode, dev_t rdev)
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{
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handle_t *handle;
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struct inode *inode, *inode_save;
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struct inode *inode;
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int err, credits, retries = 0;
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err = dquot_initialize(dir);
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@ -2660,12 +2658,9 @@ retry:
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if (!IS_ERR(inode)) {
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init_special_inode(inode, inode->i_mode, rdev);
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inode->i_op = &ext4_special_inode_operations;
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inode_save = inode;
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ihold(inode_save);
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err = ext4_add_nondir(handle, dentry, &inode);
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if (!err)
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ext4_fc_track_create(inode_save, dentry);
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iput(inode_save);
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ext4_fc_track_create(handle, dentry);
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}
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if (handle)
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ext4_journal_stop(handle);
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@ -2829,7 +2824,6 @@ out_clear_inode:
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iput(inode);
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goto out_retry;
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}
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ext4_fc_track_create(inode, dentry);
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ext4_inc_count(dir);
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ext4_update_dx_flag(dir);
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@ -2837,6 +2831,7 @@ out_clear_inode:
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if (err)
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goto out_clear_inode;
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d_instantiate_new(dentry, inode);
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ext4_fc_track_create(handle, dentry);
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if (IS_DIRSYNC(dir))
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ext4_handle_sync(handle);
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@ -3171,7 +3166,7 @@ static int ext4_rmdir(struct inode *dir, struct dentry *dentry)
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goto end_rmdir;
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ext4_dec_count(dir);
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ext4_update_dx_flag(dir);
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ext4_fc_track_unlink(inode, dentry);
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ext4_fc_track_unlink(handle, dentry);
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retval = ext4_mark_inode_dirty(handle, dir);
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#ifdef CONFIG_UNICODE
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@ -3192,13 +3187,12 @@ end_rmdir:
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return retval;
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}
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int __ext4_unlink(struct inode *dir, const struct qstr *d_name,
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int __ext4_unlink(handle_t *handle, struct inode *dir, const struct qstr *d_name,
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struct inode *inode)
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{
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int retval = -ENOENT;
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struct buffer_head *bh;
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struct ext4_dir_entry_2 *de;
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handle_t *handle = NULL;
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int skip_remove_dentry = 0;
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bh = ext4_find_entry(dir, d_name, &de, NULL);
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@ -3217,14 +3211,7 @@ int __ext4_unlink(struct inode *dir, const struct qstr *d_name,
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if (EXT4_SB(inode->i_sb)->s_mount_state & EXT4_FC_REPLAY)
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skip_remove_dentry = 1;
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else
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goto out_bh;
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}
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handle = ext4_journal_start(dir, EXT4_HT_DIR,
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EXT4_DATA_TRANS_BLOCKS(dir->i_sb));
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if (IS_ERR(handle)) {
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retval = PTR_ERR(handle);
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goto out_bh;
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goto out;
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}
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|
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if (IS_DIRSYNC(dir))
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|
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@ -3233,12 +3220,12 @@ int __ext4_unlink(struct inode *dir, const struct qstr *d_name,
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if (!skip_remove_dentry) {
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retval = ext4_delete_entry(handle, dir, de, bh);
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if (retval)
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goto out_handle;
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goto out;
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dir->i_ctime = dir->i_mtime = current_time(dir);
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ext4_update_dx_flag(dir);
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retval = ext4_mark_inode_dirty(handle, dir);
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if (retval)
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goto out_handle;
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goto out;
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} else {
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retval = 0;
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}
|
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|
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@ -3252,15 +3239,14 @@ int __ext4_unlink(struct inode *dir, const struct qstr *d_name,
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inode->i_ctime = current_time(inode);
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retval = ext4_mark_inode_dirty(handle, inode);
|
||||
|
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out_handle:
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ext4_journal_stop(handle);
|
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out_bh:
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out:
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brelse(bh);
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return retval;
|
||||
}
|
||||
|
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static int ext4_unlink(struct inode *dir, struct dentry *dentry)
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{
|
||||
handle_t *handle;
|
||||
int retval;
|
||||
|
||||
if (unlikely(ext4_forced_shutdown(EXT4_SB(dir->i_sb))))
|
||||
|
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@ -3278,9 +3264,16 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry)
|
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if (retval)
|
||||
goto out_trace;
|
||||
|
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retval = __ext4_unlink(dir, &dentry->d_name, d_inode(dentry));
|
||||
handle = ext4_journal_start(dir, EXT4_HT_DIR,
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EXT4_DATA_TRANS_BLOCKS(dir->i_sb));
|
||||
if (IS_ERR(handle)) {
|
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retval = PTR_ERR(handle);
|
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goto out_trace;
|
||||
}
|
||||
|
||||
retval = __ext4_unlink(handle, dir, &dentry->d_name, d_inode(dentry));
|
||||
if (!retval)
|
||||
ext4_fc_track_unlink(d_inode(dentry), dentry);
|
||||
ext4_fc_track_unlink(handle, dentry);
|
||||
#ifdef CONFIG_UNICODE
|
||||
/* VFS negative dentries are incompatible with Encoding and
|
||||
* Case-insensitiveness. Eventually we'll want avoid
|
||||
|
|
@ -3291,6 +3284,8 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry)
|
|||
if (IS_CASEFOLDED(dir))
|
||||
d_invalidate(dentry);
|
||||
#endif
|
||||
if (handle)
|
||||
ext4_journal_stop(handle);
|
||||
|
||||
out_trace:
|
||||
trace_ext4_unlink_exit(dentry, retval);
|
||||
|
|
@ -3447,7 +3442,6 @@ retry:
|
|||
|
||||
err = ext4_add_entry(handle, dentry, inode);
|
||||
if (!err) {
|
||||
ext4_fc_track_link(inode, dentry);
|
||||
err = ext4_mark_inode_dirty(handle, inode);
|
||||
/* this can happen only for tmpfile being
|
||||
* linked the first time
|
||||
|
|
@ -3455,6 +3449,7 @@ retry:
|
|||
if (inode->i_nlink == 1)
|
||||
ext4_orphan_del(handle, inode);
|
||||
d_instantiate(dentry, inode);
|
||||
ext4_fc_track_link(handle, dentry);
|
||||
} else {
|
||||
drop_nlink(inode);
|
||||
iput(inode);
|
||||
|
|
@ -3915,9 +3910,9 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
|
|||
EXT4_FC_REASON_RENAME_DIR);
|
||||
} else {
|
||||
if (new.inode)
|
||||
ext4_fc_track_unlink(new.inode, new.dentry);
|
||||
ext4_fc_track_link(old.inode, new.dentry);
|
||||
ext4_fc_track_unlink(old.inode, old.dentry);
|
||||
ext4_fc_track_unlink(handle, new.dentry);
|
||||
__ext4_fc_track_link(handle, old.inode, new.dentry);
|
||||
__ext4_fc_track_unlink(handle, old.inode, old.dentry);
|
||||
}
|
||||
|
||||
if (new.inode) {
|
||||
|
|
|
|||
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