From 70dd062e27e679247cd8828c23c0e12728de5465 Mon Sep 17 00:00:00 2001 From: Kent Overstreet Date: Mon, 20 May 2024 03:03:29 -0400 Subject: bcachefs: Fix btree_trans leak in bch2_readahead() Reported-by: syzbot+d797fe78808e968d6c84@syzkaller.appspotmail.com Signed-off-by: Kent Overstreet --- fs/bcachefs/fs-io-buffered.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs') diff --git a/fs/bcachefs/fs-io-buffered.c b/fs/bcachefs/fs-io-buffered.c index b0a33fabadf8..6b69e5cd68dd 100644 --- a/fs/bcachefs/fs-io-buffered.c +++ b/fs/bcachefs/fs-io-buffered.c @@ -257,7 +257,6 @@ void bch2_readahead(struct readahead_control *ractl) struct bch_inode_info *inode = to_bch_ei(ractl->mapping->host); struct bch_fs *c = inode->v.i_sb->s_fs_info; struct bch_io_opts opts; - struct btree_trans *trans = bch2_trans_get(c); struct folio *folio; struct readpages_iter readpages_iter; @@ -269,6 +268,7 @@ void bch2_readahead(struct readahead_control *ractl) bch2_pagecache_add_get(inode); + struct btree_trans *trans = bch2_trans_get(c); while ((folio = readpage_iter_peek(&readpages_iter))) { unsigned n = min_t(unsigned, readpages_iter.folios.nr - @@ -289,10 +289,10 @@ void bch2_readahead(struct readahead_control *ractl) &readpages_iter); bch2_trans_unlock(trans); } + bch2_trans_put(trans); bch2_pagecache_add_put(inode); - bch2_trans_put(trans); darray_exit(&readpages_iter.folios); } -- cgit v1.2.3