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: ext3: Flush disk caches on fsync when needed ext3: Add locking to ext3_do_update_inode ext3: Fix possible deadlock between ext3_truncate() and ext3_get_blocks() jbd: Annotate transaction start also for journal_restart() jbd: Journal block numbers can ever be only 32-bit use unsigned int for them ext3: Update MAINTAINERS for ext3 and JBD JBD: round commit timer up to avoid uncommitted transaction
This commit is contained in:
Linus Torvalds
commit
2511817cf9
10 changed files with 90 additions and 60 deletions
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@ -1973,7 +1973,6 @@ F: fs/ext2/
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F: include/linux/ext2*
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EXT3 FILE SYSTEM
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M: Stephen Tweedie <sct@redhat.com>
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M: Andrew Morton <akpm@linux-foundation.org>
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M: Andreas Dilger <adilger@sun.com>
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L: linux-ext4@vger.kernel.org
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@ -2901,8 +2900,8 @@ F: fs/jffs2/
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F: include/linux/jffs2.h
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JOURNALLING LAYER FOR BLOCK DEVICES (JBD)
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M: Stephen Tweedie <sct@redhat.com>
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M: Andrew Morton <akpm@linux-foundation.org>
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M: Jan Kara <jack@suse.cz>
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L: linux-ext4@vger.kernel.org
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S: Maintained
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F: fs/jbd*/
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@ -23,6 +23,7 @@
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*/
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#include <linux/time.h>
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#include <linux/blkdev.h>
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#include <linux/fs.h>
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#include <linux/sched.h>
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#include <linux/writeback.h>
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@ -73,7 +74,7 @@ int ext3_sync_file(struct file * file, struct dentry *dentry, int datasync)
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}
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if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
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goto out;
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goto flush;
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/*
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* The VFS has written the file data. If the inode is unaltered
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@ -85,7 +86,16 @@ int ext3_sync_file(struct file * file, struct dentry *dentry, int datasync)
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.nr_to_write = 0, /* sys_fsync did this */
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};
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ret = sync_inode(inode, &wbc);
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goto out;
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}
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flush:
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/*
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* In case we didn't commit a transaction, we have to flush
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* disk caches manually so that data really is on persistent
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* storage
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*/
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if (test_opt(inode->i_sb, BARRIER))
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blkdev_issue_flush(inode->i_sb->s_bdev, NULL);
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out:
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return ret;
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}
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@ -172,10 +172,21 @@ static int try_to_extend_transaction(handle_t *handle, struct inode *inode)
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* so before we call here everything must be consistently dirtied against
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* this transaction.
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*/
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static int ext3_journal_test_restart(handle_t *handle, struct inode *inode)
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static int truncate_restart_transaction(handle_t *handle, struct inode *inode)
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{
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int ret;
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jbd_debug(2, "restarting handle %p\n", handle);
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return ext3_journal_restart(handle, blocks_for_truncate(inode));
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/*
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* Drop truncate_mutex to avoid deadlock with ext3_get_blocks_handle
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* At this moment, get_block can be called only for blocks inside
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* i_size since page cache has been already dropped and writes are
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* blocked by i_mutex. So we can safely drop the truncate_mutex.
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*/
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mutex_unlock(&EXT3_I(inode)->truncate_mutex);
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ret = ext3_journal_restart(handle, blocks_for_truncate(inode));
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mutex_lock(&EXT3_I(inode)->truncate_mutex);
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return ret;
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}
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/*
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@ -2072,7 +2083,7 @@ static void ext3_clear_blocks(handle_t *handle, struct inode *inode,
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ext3_journal_dirty_metadata(handle, bh);
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}
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ext3_mark_inode_dirty(handle, inode);
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ext3_journal_test_restart(handle, inode);
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truncate_restart_transaction(handle, inode);
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if (bh) {
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BUFFER_TRACE(bh, "retaking write access");
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ext3_journal_get_write_access(handle, bh);
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@ -2282,7 +2293,7 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode,
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return;
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if (try_to_extend_transaction(handle, inode)) {
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ext3_mark_inode_dirty(handle, inode);
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ext3_journal_test_restart(handle, inode);
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truncate_restart_transaction(handle, inode);
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}
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ext3_free_blocks(handle, inode, nr, 1);
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@ -2892,6 +2903,10 @@ static int ext3_do_update_inode(handle_t *handle,
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struct buffer_head *bh = iloc->bh;
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int err = 0, rc, block;
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again:
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/* we can't allow multiple procs in here at once, its a bit racey */
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lock_buffer(bh);
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/* For fields not not tracking in the in-memory inode,
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* initialise them to zero for new inodes. */
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if (ei->i_state & EXT3_STATE_NEW)
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@ -2951,16 +2966,20 @@ static int ext3_do_update_inode(handle_t *handle,
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/* If this is the first large file
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* created, add a flag to the superblock.
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*/
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unlock_buffer(bh);
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err = ext3_journal_get_write_access(handle,
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EXT3_SB(sb)->s_sbh);
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if (err)
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goto out_brelse;
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ext3_update_dynamic_rev(sb);
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EXT3_SET_RO_COMPAT_FEATURE(sb,
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EXT3_FEATURE_RO_COMPAT_LARGE_FILE);
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handle->h_sync = 1;
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err = ext3_journal_dirty_metadata(handle,
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EXT3_SB(sb)->s_sbh);
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/* get our lock and start over */
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goto again;
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}
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}
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}
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@ -2983,6 +3002,7 @@ static int ext3_do_update_inode(handle_t *handle,
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raw_inode->i_extra_isize = cpu_to_le16(ei->i_extra_isize);
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BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
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unlock_buffer(bh);
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rc = ext3_journal_dirty_metadata(handle, bh);
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if (!err)
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err = rc;
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@ -456,7 +456,7 @@ int cleanup_journal_tail(journal_t *journal)
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{
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transaction_t * transaction;
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tid_t first_tid;
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unsigned long blocknr, freed;
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unsigned int blocknr, freed;
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if (is_journal_aborted(journal))
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return 1;
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@ -502,8 +502,8 @@ int cleanup_journal_tail(journal_t *journal)
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freed = freed + journal->j_last - journal->j_first;
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jbd_debug(1,
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"Cleaning journal tail from %d to %d (offset %lu), "
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"freeing %lu\n",
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"Cleaning journal tail from %d to %d (offset %u), "
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"freeing %u\n",
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journal->j_tail_sequence, first_tid, blocknr, freed);
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journal->j_free += freed;
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@ -308,7 +308,7 @@ void journal_commit_transaction(journal_t *journal)
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int bufs;
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int flags;
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int err;
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unsigned long blocknr;
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unsigned int blocknr;
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ktime_t start_time;
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u64 commit_time;
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char *tagp = NULL;
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@ -276,7 +276,7 @@ static void journal_kill_thread(journal_t *journal)
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int journal_write_metadata_buffer(transaction_t *transaction,
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struct journal_head *jh_in,
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struct journal_head **jh_out,
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unsigned long blocknr)
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unsigned int blocknr)
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{
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int need_copy_out = 0;
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int done_copy_out = 0;
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@ -567,9 +567,9 @@ int log_wait_commit(journal_t *journal, tid_t tid)
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* Log buffer allocation routines:
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*/
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int journal_next_log_block(journal_t *journal, unsigned long *retp)
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int journal_next_log_block(journal_t *journal, unsigned int *retp)
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{
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unsigned long blocknr;
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unsigned int blocknr;
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spin_lock(&journal->j_state_lock);
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J_ASSERT(journal->j_free > 1);
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@ -590,11 +590,11 @@ int journal_next_log_block(journal_t *journal, unsigned long *retp)
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* this is a no-op. If needed, we can use j_blk_offset - everything is
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* ready.
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*/
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int journal_bmap(journal_t *journal, unsigned long blocknr,
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unsigned long *retp)
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int journal_bmap(journal_t *journal, unsigned int blocknr,
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unsigned int *retp)
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{
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int err = 0;
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unsigned long ret;
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unsigned int ret;
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if (journal->j_inode) {
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ret = bmap(journal->j_inode, blocknr);
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@ -604,7 +604,7 @@ int journal_bmap(journal_t *journal, unsigned long blocknr,
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char b[BDEVNAME_SIZE];
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printk(KERN_ALERT "%s: journal block not found "
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"at offset %lu on %s\n",
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"at offset %u on %s\n",
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__func__,
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blocknr,
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bdevname(journal->j_dev, b));
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@ -630,7 +630,7 @@ int journal_bmap(journal_t *journal, unsigned long blocknr,
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struct journal_head *journal_get_descriptor_buffer(journal_t *journal)
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{
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struct buffer_head *bh;
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unsigned long blocknr;
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unsigned int blocknr;
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int err;
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err = journal_next_log_block(journal, &blocknr);
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@ -774,7 +774,7 @@ journal_t * journal_init_inode (struct inode *inode)
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journal_t *journal = journal_init_common();
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int err;
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int n;
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unsigned long blocknr;
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unsigned int blocknr;
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if (!journal)
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return NULL;
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@ -846,12 +846,12 @@ static void journal_fail_superblock (journal_t *journal)
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static int journal_reset(journal_t *journal)
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{
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journal_superblock_t *sb = journal->j_superblock;
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unsigned long first, last;
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unsigned int first, last;
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first = be32_to_cpu(sb->s_first);
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last = be32_to_cpu(sb->s_maxlen);
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if (first + JFS_MIN_JOURNAL_BLOCKS > last + 1) {
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printk(KERN_ERR "JBD: Journal too short (blocks %lu-%lu).\n",
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printk(KERN_ERR "JBD: Journal too short (blocks %u-%u).\n",
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first, last);
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journal_fail_superblock(journal);
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return -EINVAL;
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@ -885,7 +885,7 @@ static int journal_reset(journal_t *journal)
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**/
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int journal_create(journal_t *journal)
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{
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unsigned long blocknr;
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unsigned int blocknr;
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struct buffer_head *bh;
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journal_superblock_t *sb;
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int i, err;
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@ -969,14 +969,14 @@ void journal_update_superblock(journal_t *journal, int wait)
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if (sb->s_start == 0 && journal->j_tail_sequence ==
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journal->j_transaction_sequence) {
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jbd_debug(1,"JBD: Skipping superblock update on recovered sb "
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"(start %ld, seq %d, errno %d)\n",
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"(start %u, seq %d, errno %d)\n",
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journal->j_tail, journal->j_tail_sequence,
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journal->j_errno);
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goto out;
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}
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|
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spin_lock(&journal->j_state_lock);
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jbd_debug(1,"JBD: updating superblock (start %ld, seq %d, errno %d)\n",
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jbd_debug(1,"JBD: updating superblock (start %u, seq %d, errno %d)\n",
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journal->j_tail, journal->j_tail_sequence, journal->j_errno);
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sb->s_sequence = cpu_to_be32(journal->j_tail_sequence);
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|
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@ -1371,7 +1371,7 @@ int journal_flush(journal_t *journal)
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{
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int err = 0;
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transaction_t *transaction = NULL;
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unsigned long old_tail;
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unsigned int old_tail;
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|
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spin_lock(&journal->j_state_lock);
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|
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|
|
|
|||
|
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@ -70,7 +70,7 @@ static int do_readahead(journal_t *journal, unsigned int start)
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{
|
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int err;
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unsigned int max, nbufs, next;
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unsigned long blocknr;
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unsigned int blocknr;
|
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struct buffer_head *bh;
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||||
|
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struct buffer_head * bufs[MAXBUF];
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|
|
@ -132,7 +132,7 @@ static int jread(struct buffer_head **bhp, journal_t *journal,
|
|||
unsigned int offset)
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||||
{
|
||||
int err;
|
||||
unsigned long blocknr;
|
||||
unsigned int blocknr;
|
||||
struct buffer_head *bh;
|
||||
|
||||
*bhp = NULL;
|
||||
|
|
@ -314,7 +314,7 @@ static int do_one_pass(journal_t *journal,
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|||
struct recovery_info *info, enum passtype pass)
|
||||
{
|
||||
unsigned int first_commit_ID, next_commit_ID;
|
||||
unsigned long next_log_block;
|
||||
unsigned int next_log_block;
|
||||
int err, success = 0;
|
||||
journal_superblock_t * sb;
|
||||
journal_header_t * tmp;
|
||||
|
|
@ -367,14 +367,14 @@ static int do_one_pass(journal_t *journal,
|
|||
if (tid_geq(next_commit_ID, info->end_transaction))
|
||||
break;
|
||||
|
||||
jbd_debug(2, "Scanning for sequence ID %u at %lu/%lu\n",
|
||||
jbd_debug(2, "Scanning for sequence ID %u at %u/%u\n",
|
||||
next_commit_ID, next_log_block, journal->j_last);
|
||||
|
||||
/* Skip over each chunk of the transaction looking
|
||||
* either the next descriptor block or the final commit
|
||||
* record. */
|
||||
|
||||
jbd_debug(3, "JBD: checking block %ld\n", next_log_block);
|
||||
jbd_debug(3, "JBD: checking block %u\n", next_log_block);
|
||||
err = jread(&bh, journal, next_log_block);
|
||||
if (err)
|
||||
goto failed;
|
||||
|
|
@ -429,7 +429,7 @@ static int do_one_pass(journal_t *journal,
|
|||
tagp = &bh->b_data[sizeof(journal_header_t)];
|
||||
while ((tagp - bh->b_data +sizeof(journal_block_tag_t))
|
||||
<= journal->j_blocksize) {
|
||||
unsigned long io_block;
|
||||
unsigned int io_block;
|
||||
|
||||
tag = (journal_block_tag_t *) tagp;
|
||||
flags = be32_to_cpu(tag->t_flags);
|
||||
|
|
@ -443,10 +443,10 @@ static int do_one_pass(journal_t *journal,
|
|||
success = err;
|
||||
printk (KERN_ERR
|
||||
"JBD: IO error %d recovering "
|
||||
"block %ld in log\n",
|
||||
"block %u in log\n",
|
||||
err, io_block);
|
||||
} else {
|
||||
unsigned long blocknr;
|
||||
unsigned int blocknr;
|
||||
|
||||
J_ASSERT(obh != NULL);
|
||||
blocknr = be32_to_cpu(tag->t_blocknr);
|
||||
|
|
@ -581,7 +581,7 @@ static int scan_revoke_records(journal_t *journal, struct buffer_head *bh,
|
|||
max = be32_to_cpu(header->r_count);
|
||||
|
||||
while (offset < max) {
|
||||
unsigned long blocknr;
|
||||
unsigned int blocknr;
|
||||
int err;
|
||||
|
||||
blocknr = be32_to_cpu(* ((__be32 *) (bh->b_data+offset)));
|
||||
|
|
|
|||
|
|
@ -101,7 +101,7 @@ struct jbd_revoke_record_s
|
|||
{
|
||||
struct list_head hash;
|
||||
tid_t sequence; /* Used for recovery only */
|
||||
unsigned long blocknr;
|
||||
unsigned int blocknr;
|
||||
};
|
||||
|
||||
|
||||
|
|
@ -126,7 +126,7 @@ static void flush_descriptor(journal_t *, struct journal_head *, int, int);
|
|||
/* Utility functions to maintain the revoke table */
|
||||
|
||||
/* Borrowed from buffer.c: this is a tried and tested block hash function */
|
||||
static inline int hash(journal_t *journal, unsigned long block)
|
||||
static inline int hash(journal_t *journal, unsigned int block)
|
||||
{
|
||||
struct jbd_revoke_table_s *table = journal->j_revoke;
|
||||
int hash_shift = table->hash_shift;
|
||||
|
|
@ -136,7 +136,7 @@ static inline int hash(journal_t *journal, unsigned long block)
|
|||
(block << (hash_shift - 12))) & (table->hash_size - 1);
|
||||
}
|
||||
|
||||
static int insert_revoke_hash(journal_t *journal, unsigned long blocknr,
|
||||
static int insert_revoke_hash(journal_t *journal, unsigned int blocknr,
|
||||
tid_t seq)
|
||||
{
|
||||
struct list_head *hash_list;
|
||||
|
|
@ -166,7 +166,7 @@ static int insert_revoke_hash(journal_t *journal, unsigned long blocknr,
|
|||
/* Find a revoke record in the journal's hash table. */
|
||||
|
||||
static struct jbd_revoke_record_s *find_revoke_record(journal_t *journal,
|
||||
unsigned long blocknr)
|
||||
unsigned int blocknr)
|
||||
{
|
||||
struct list_head *hash_list;
|
||||
struct jbd_revoke_record_s *record;
|
||||
|
|
@ -332,7 +332,7 @@ void journal_destroy_revoke(journal_t *journal)
|
|||
* by one.
|
||||
*/
|
||||
|
||||
int journal_revoke(handle_t *handle, unsigned long blocknr,
|
||||
int journal_revoke(handle_t *handle, unsigned int blocknr,
|
||||
struct buffer_head *bh_in)
|
||||
{
|
||||
struct buffer_head *bh = NULL;
|
||||
|
|
@ -401,7 +401,7 @@ int journal_revoke(handle_t *handle, unsigned long blocknr,
|
|||
}
|
||||
}
|
||||
|
||||
jbd_debug(2, "insert revoke for block %lu, bh_in=%p\n", blocknr, bh_in);
|
||||
jbd_debug(2, "insert revoke for block %u, bh_in=%p\n", blocknr, bh_in);
|
||||
err = insert_revoke_hash(journal, blocknr,
|
||||
handle->h_transaction->t_tid);
|
||||
BUFFER_TRACE(bh_in, "exit");
|
||||
|
|
@ -644,7 +644,7 @@ static void flush_descriptor(journal_t *journal,
|
|||
*/
|
||||
|
||||
int journal_set_revoke(journal_t *journal,
|
||||
unsigned long blocknr,
|
||||
unsigned int blocknr,
|
||||
tid_t sequence)
|
||||
{
|
||||
struct jbd_revoke_record_s *record;
|
||||
|
|
@ -668,7 +668,7 @@ int journal_set_revoke(journal_t *journal,
|
|||
*/
|
||||
|
||||
int journal_test_revoke(journal_t *journal,
|
||||
unsigned long blocknr,
|
||||
unsigned int blocknr,
|
||||
tid_t sequence)
|
||||
{
|
||||
struct jbd_revoke_record_s *record;
|
||||
|
|
|
|||
|
|
@ -56,7 +56,8 @@ get_transaction(journal_t *journal, transaction_t *transaction)
|
|||
spin_lock_init(&transaction->t_handle_lock);
|
||||
|
||||
/* Set up the commit timer for the new transaction. */
|
||||
journal->j_commit_timer.expires = round_jiffies(transaction->t_expires);
|
||||
journal->j_commit_timer.expires =
|
||||
round_jiffies_up(transaction->t_expires);
|
||||
add_timer(&journal->j_commit_timer);
|
||||
|
||||
J_ASSERT(journal->j_running_transaction == NULL);
|
||||
|
|
@ -228,6 +229,8 @@ static int start_this_handle(journal_t *journal, handle_t *handle)
|
|||
__log_space_left(journal));
|
||||
spin_unlock(&transaction->t_handle_lock);
|
||||
spin_unlock(&journal->j_state_lock);
|
||||
|
||||
lock_map_acquire(&handle->h_lockdep_map);
|
||||
out:
|
||||
if (unlikely(new_transaction)) /* It's usually NULL */
|
||||
kfree(new_transaction);
|
||||
|
|
@ -292,9 +295,6 @@ handle_t *journal_start(journal_t *journal, int nblocks)
|
|||
handle = ERR_PTR(err);
|
||||
goto out;
|
||||
}
|
||||
|
||||
lock_map_acquire(&handle->h_lockdep_map);
|
||||
|
||||
out:
|
||||
return handle;
|
||||
}
|
||||
|
|
@ -416,6 +416,7 @@ int journal_restart(handle_t *handle, int nblocks)
|
|||
__log_start_commit(journal, transaction->t_tid);
|
||||
spin_unlock(&journal->j_state_lock);
|
||||
|
||||
lock_map_release(&handle->h_lockdep_map);
|
||||
handle->h_buffer_credits = nblocks;
|
||||
ret = start_this_handle(journal, handle);
|
||||
return ret;
|
||||
|
|
|
|||
|
|
@ -446,7 +446,7 @@ struct transaction_s
|
|||
/*
|
||||
* Where in the log does this transaction's commit start? [no locking]
|
||||
*/
|
||||
unsigned long t_log_start;
|
||||
unsigned int t_log_start;
|
||||
|
||||
/* Number of buffers on the t_buffers list [j_list_lock] */
|
||||
int t_nr_buffers;
|
||||
|
|
@ -701,26 +701,26 @@ struct journal_s
|
|||
* Journal head: identifies the first unused block in the journal.
|
||||
* [j_state_lock]
|
||||
*/
|
||||
unsigned long j_head;
|
||||
unsigned int j_head;
|
||||
|
||||
/*
|
||||
* Journal tail: identifies the oldest still-used block in the journal.
|
||||
* [j_state_lock]
|
||||
*/
|
||||
unsigned long j_tail;
|
||||
unsigned int j_tail;
|
||||
|
||||
/*
|
||||
* Journal free: how many free blocks are there in the journal?
|
||||
* [j_state_lock]
|
||||
*/
|
||||
unsigned long j_free;
|
||||
unsigned int j_free;
|
||||
|
||||
/*
|
||||
* Journal start and end: the block numbers of the first usable block
|
||||
* and one beyond the last usable block in the journal. [j_state_lock]
|
||||
*/
|
||||
unsigned long j_first;
|
||||
unsigned long j_last;
|
||||
unsigned int j_first;
|
||||
unsigned int j_last;
|
||||
|
||||
/*
|
||||
* Device, blocksize and starting block offset for the location where we
|
||||
|
|
@ -728,7 +728,7 @@ struct journal_s
|
|||
*/
|
||||
struct block_device *j_dev;
|
||||
int j_blocksize;
|
||||
unsigned long j_blk_offset;
|
||||
unsigned int j_blk_offset;
|
||||
|
||||
/*
|
||||
* Device which holds the client fs. For internal journal this will be
|
||||
|
|
@ -859,7 +859,7 @@ extern void __journal_clean_data_list(transaction_t *transaction);
|
|||
|
||||
/* Log buffer allocation */
|
||||
extern struct journal_head * journal_get_descriptor_buffer(journal_t *);
|
||||
int journal_next_log_block(journal_t *, unsigned long *);
|
||||
int journal_next_log_block(journal_t *, unsigned int *);
|
||||
|
||||
/* Commit management */
|
||||
extern void journal_commit_transaction(journal_t *);
|
||||
|
|
@ -874,7 +874,7 @@ extern int
|
|||
journal_write_metadata_buffer(transaction_t *transaction,
|
||||
struct journal_head *jh_in,
|
||||
struct journal_head **jh_out,
|
||||
unsigned long blocknr);
|
||||
unsigned int blocknr);
|
||||
|
||||
/* Transaction locking */
|
||||
extern void __wait_on_journal (journal_t *);
|
||||
|
|
@ -942,7 +942,7 @@ extern void journal_abort (journal_t *, int);
|
|||
extern int journal_errno (journal_t *);
|
||||
extern void journal_ack_err (journal_t *);
|
||||
extern int journal_clear_err (journal_t *);
|
||||
extern int journal_bmap(journal_t *, unsigned long, unsigned long *);
|
||||
extern int journal_bmap(journal_t *, unsigned int, unsigned int *);
|
||||
extern int journal_force_commit(journal_t *);
|
||||
|
||||
/*
|
||||
|
|
@ -976,14 +976,14 @@ extern int journal_init_revoke_caches(void);
|
|||
|
||||
extern void journal_destroy_revoke(journal_t *);
|
||||
extern int journal_revoke (handle_t *,
|
||||
unsigned long, struct buffer_head *);
|
||||
unsigned int, struct buffer_head *);
|
||||
extern int journal_cancel_revoke(handle_t *, struct journal_head *);
|
||||
extern void journal_write_revoke_records(journal_t *,
|
||||
transaction_t *, int);
|
||||
|
||||
/* Recovery revoke support */
|
||||
extern int journal_set_revoke(journal_t *, unsigned long, tid_t);
|
||||
extern int journal_test_revoke(journal_t *, unsigned long, tid_t);
|
||||
extern int journal_set_revoke(journal_t *, unsigned int, tid_t);
|
||||
extern int journal_test_revoke(journal_t *, unsigned int, tid_t);
|
||||
extern void journal_clear_revoke(journal_t *);
|
||||
extern void journal_switch_revoke_table(journal_t *journal);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue