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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-11-11 11:52:22 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-11-11 11:52:22 -0800 |
commit | fd801452a30927ec0dff84e541191e611c1afd0c (patch) | |
tree | 3c83a39d2870694729a84db9fa4d028ee496b3a2 /fs | |
parent | 79a8f1b1a481cc28701275de916ccea954c6743f (diff) | |
parent | 7b02bec07efe1d6c7d48c786e0c1a38d28fe7245 (diff) | |
download | linux-stable-fd801452a30927ec0dff84e541191e611c1afd0c.tar.gz linux-stable-fd801452a30927ec0dff84e541191e611c1afd0c.tar.bz2 linux-stable-fd801452a30927ec0dff84e541191e611c1afd0c.zip |
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
JBD/JBD2: free j_wbuf if journal init fails.
ext3: Wait for proper transaction commit on fsync
ext3: retry failed direct IO allocations
Diffstat (limited to 'fs')
-rw-r--r-- | fs/ext3/fsync.c | 36 | ||||
-rw-r--r-- | fs/ext3/inode.c | 36 | ||||
-rw-r--r-- | fs/ext3/super.c | 2 | ||||
-rw-r--r-- | fs/jbd/journal.c | 2 | ||||
-rw-r--r-- | fs/jbd2/journal.c | 2 |
5 files changed, 57 insertions, 21 deletions
diff --git a/fs/ext3/fsync.c b/fs/ext3/fsync.c index 451d166bbe93..8209f266e9ad 100644 --- a/fs/ext3/fsync.c +++ b/fs/ext3/fsync.c @@ -46,19 +46,21 @@ int ext3_sync_file(struct file * file, struct dentry *dentry, int datasync) { struct inode *inode = dentry->d_inode; + struct ext3_inode_info *ei = EXT3_I(inode); + journal_t *journal = EXT3_SB(inode->i_sb)->s_journal; int ret = 0; + tid_t commit_tid; + + if (inode->i_sb->s_flags & MS_RDONLY) + return 0; J_ASSERT(ext3_journal_current_handle() == NULL); /* - * data=writeback: + * data=writeback,ordered: * The caller's filemap_fdatawrite()/wait will sync the data. - * sync_inode() will sync the metadata - * - * data=ordered: - * The caller's filemap_fdatawrite() will write the data and - * sync_inode() will write the inode if it is dirty. Then the caller's - * filemap_fdatawait() will wait on the pages. + * Metadata is in the journal, we wait for a proper transaction + * to commit here. * * data=journal: * filemap_fdatawrite won't do anything (the buffers are clean). @@ -73,22 +75,16 @@ int ext3_sync_file(struct file * file, struct dentry *dentry, int datasync) goto out; } - if (datasync && !(inode->i_state & I_DIRTY_DATASYNC)) - goto flush; + if (datasync) + commit_tid = atomic_read(&ei->i_datasync_tid); + else + commit_tid = atomic_read(&ei->i_sync_tid); - /* - * The VFS has written the file data. If the inode is unaltered - * then we need not start a commit. - */ - if (inode->i_state & (I_DIRTY_SYNC|I_DIRTY_DATASYNC)) { - struct writeback_control wbc = { - .sync_mode = WB_SYNC_ALL, - .nr_to_write = 0, /* sys_fsync did this */ - }; - ret = sync_inode(inode, &wbc); + if (log_start_commit(journal, commit_tid)) { + log_wait_commit(journal, commit_tid); goto out; } -flush: + /* * In case we didn't commit a transaction, we have to flush * disk caches manually so that data really is on persistent diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c index acf1b1423327..354ed3b47b30 100644 --- a/fs/ext3/inode.c +++ b/fs/ext3/inode.c @@ -699,8 +699,9 @@ static int ext3_splice_branch(handle_t *handle, struct inode *inode, int err = 0; struct ext3_block_alloc_info *block_i; ext3_fsblk_t current_block; + struct ext3_inode_info *ei = EXT3_I(inode); - block_i = EXT3_I(inode)->i_block_alloc_info; + block_i = ei->i_block_alloc_info; /* * If we're splicing into a [td]indirect block (as opposed to the * inode) then we need to get write access to the [td]indirect block @@ -741,6 +742,8 @@ static int ext3_splice_branch(handle_t *handle, struct inode *inode, inode->i_ctime = CURRENT_TIME_SEC; ext3_mark_inode_dirty(handle, inode); + /* ext3_mark_inode_dirty already updated i_sync_tid */ + atomic_set(&ei->i_datasync_tid, handle->h_transaction->t_tid); /* had we spliced it onto indirect block? */ if (where->bh) { @@ -1735,6 +1738,7 @@ static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb, ssize_t ret; int orphan = 0; size_t count = iov_length(iov, nr_segs); + int retries = 0; if (rw == WRITE) { loff_t final_size = offset + count; @@ -1757,9 +1761,12 @@ static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb, } } +retry: ret = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov, offset, nr_segs, ext3_get_block, NULL); + if (ret == -ENOSPC && ext3_should_retry_alloc(inode->i_sb, &retries)) + goto retry; if (orphan) { int err; @@ -2750,6 +2757,8 @@ struct inode *ext3_iget(struct super_block *sb, unsigned long ino) struct ext3_inode_info *ei; struct buffer_head *bh; struct inode *inode; + journal_t *journal = EXT3_SB(sb)->s_journal; + transaction_t *transaction; long ret; int block; @@ -2827,6 +2836,30 @@ struct inode *ext3_iget(struct super_block *sb, unsigned long ino) ei->i_data[block] = raw_inode->i_block[block]; INIT_LIST_HEAD(&ei->i_orphan); + /* + * Set transaction id's of transactions that have to be committed + * to finish f[data]sync. We set them to currently running transaction + * as we cannot be sure that the inode or some of its metadata isn't + * part of the transaction - the inode could have been reclaimed and + * now it is reread from disk. + */ + if (journal) { + tid_t tid; + + spin_lock(&journal->j_state_lock); + if (journal->j_running_transaction) + transaction = journal->j_running_transaction; + else + transaction = journal->j_committing_transaction; + if (transaction) + tid = transaction->t_tid; + else + tid = journal->j_commit_sequence; + spin_unlock(&journal->j_state_lock); + atomic_set(&ei->i_sync_tid, tid); + atomic_set(&ei->i_datasync_tid, tid); + } + if (inode->i_ino >= EXT3_FIRST_INO(inode->i_sb) + 1 && EXT3_INODE_SIZE(inode->i_sb) > EXT3_GOOD_OLD_INODE_SIZE) { /* @@ -3011,6 +3044,7 @@ again: err = rc; ei->i_state &= ~EXT3_STATE_NEW; + atomic_set(&ei->i_sync_tid, handle->h_transaction->t_tid); out_brelse: brelse (bh); ext3_std_error(inode->i_sb, err); diff --git a/fs/ext3/super.c b/fs/ext3/super.c index 7a520a862f49..427496c4767c 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -466,6 +466,8 @@ static struct inode *ext3_alloc_inode(struct super_block *sb) return NULL; ei->i_block_alloc_info = NULL; ei->vfs_inode.i_version = 1; + atomic_set(&ei->i_datasync_tid, 0); + atomic_set(&ei->i_sync_tid, 0); return &ei->vfs_inode; } diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c index bd3c073b485d..49d5cd6053c8 100644 --- a/fs/jbd/journal.c +++ b/fs/jbd/journal.c @@ -756,6 +756,7 @@ journal_t * journal_init_dev(struct block_device *bdev, return journal; out_err: + kfree(journal->j_wbuf); kfree(journal); return NULL; } @@ -820,6 +821,7 @@ journal_t * journal_init_inode (struct inode *inode) return journal; out_err: + kfree(journal->j_wbuf); kfree(journal); return NULL; } diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index b0ab5219becb..fed85388ee86 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -913,6 +913,7 @@ journal_t * jbd2_journal_init_dev(struct block_device *bdev, return journal; out_err: + kfree(journal->j_wbuf); jbd2_stats_proc_exit(journal); kfree(journal); return NULL; @@ -986,6 +987,7 @@ journal_t * jbd2_journal_init_inode (struct inode *inode) return journal; out_err: + kfree(journal->j_wbuf); jbd2_stats_proc_exit(journal); kfree(journal); return NULL; |