From 2499604960fff307fe99ff4d4363c50eaa69235a Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Wed, 14 Dec 2005 14:38:05 -0500 Subject: [PATCH] [PATCH] reiserfs: close open transactions on error path The following patch fixes a bug where if the journal is aborted, it can leave a transaction open. The result will be a BUG when another code path attempts to start a transaction and will get a "nesting into different fs" error, since current->journal_info will be left non-NULL. Original fix against SUSE kernel by Chris Mason Signed-off-by: Jeff Mahoney Signed-off-by: Linus Torvalds --- fs/reiserfs/inode.c | 26 ++++++++++++++++++-------- 1 file changed, 18 insertions(+), 8 deletions(-) diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index 0a044ad9888..a5e3a0ddbe5 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c @@ -32,6 +32,7 @@ void reiserfs_delete_inode(struct inode *inode) JOURNAL_PER_BALANCE_CNT * 2 + 2 * REISERFS_QUOTA_INIT_BLOCKS(inode->i_sb); struct reiserfs_transaction_handle th; + int err; truncate_inode_pages(&inode->i_data, 0); @@ -49,15 +50,13 @@ void reiserfs_delete_inode(struct inode *inode) } reiserfs_update_inode_transaction(inode); - if (reiserfs_delete_object(&th, inode)) { - up(&inode->i_sem); - goto out; - } + err = reiserfs_delete_object(&th, inode); /* Do quota update inside a transaction for journaled quotas. We must do that * after delete_object so that quota updates go into the same transaction as * stat data deletion */ - DQUOT_FREE_INODE(inode); + if (!err) + DQUOT_FREE_INODE(inode); if (journal_end(&th, inode->i_sb, jbegin_count)) { up(&inode->i_sem); @@ -66,6 +65,12 @@ void reiserfs_delete_inode(struct inode *inode) up(&inode->i_sem); + /* check return value from reiserfs_delete_object after + * ending the transaction + */ + if (err) + goto out; + /* all items of file are deleted, so we can remove "save" link */ remove_save_link(inode, 0 /* not truncate */ ); /* we can't do anything * about an error here */ @@ -2099,6 +2104,7 @@ int reiserfs_truncate_file(struct inode *p_s_inode, int update_timestamps) struct page *page = NULL; int error; struct buffer_head *bh = NULL; + int err2; reiserfs_write_lock(p_s_inode->i_sb); @@ -2136,14 +2142,18 @@ int reiserfs_truncate_file(struct inode *p_s_inode, int update_timestamps) transaction of truncating gets committed - on reboot the file either appears truncated properly or not truncated at all */ add_save_link(&th, p_s_inode, 1); - error = reiserfs_do_truncate(&th, p_s_inode, page, update_timestamps); - if (error) - goto out; + err2 = reiserfs_do_truncate(&th, p_s_inode, page, update_timestamps); error = journal_end(&th, p_s_inode->i_sb, JOURNAL_PER_BALANCE_CNT * 2 + 1); if (error) goto out; + /* check reiserfs_do_truncate after ending the transaction */ + if (err2) { + error = err2; + goto out; + } + if (update_timestamps) { error = remove_save_link(p_s_inode, 1 /* truncate */ ); if (error) -- 2.20.1