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| author |   Filipe Manana <fdmanana@suse.com> | 2021-02-04 14:35:44 +0000 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2021-02-08 22:59:04 +0100 |
| commit | 72c9925f87c8b74f36f8e75a4cd93d964538d3ca (patch) | |
| tree | 26882a36fd7ca6502ef0df88b5f72f4e3803d5cf /block/bio.c | |
| parent | btrfs: explain page locking and readahead in read_extent_buffer_pages() (diff) | |
| download | linux-dev-72c9925f87c8b74f36f8e75a4cd93d964538d3ca.tar.xz linux-dev-72c9925f87c8b74f36f8e75a4cd93d964538d3ca.zip | |
btrfs: fix extent buffer leak on failure to copy root
At btrfs_copy_root(), if the call to btrfs_inc_ref() fails we end up
returning without unlocking and releasing our reference on the extent
buffer named "cow" we previously allocated with btrfs_alloc_tree_block().
So fix that by unlocking the extent buffer and dropping our reference on
it before returning.
Fixes: be20aa9dbadc8c ("Btrfs: Add mount option to turn off data cow")
CC: stable@vger.kernel.org # 4.4+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'block/bio.c')
0 files changed, 0 insertions, 0 deletions