btrfs: fix page leaks after failure to lock page for delalloc
When locking pages for delalloc, we check if it's dirty and mapping still matches. If it does not match, we need to return -EAGAIN and release all pages. Only the current page was put though, iterate over all the remaining pages too. CC: stable@vger.kernel.org # 4.14+ Reviewed-by:Filipe Manana <fdmanana@suse.com> Reviewed-by:
Nikolay Borisov <nborisov@suse.com> Signed-off-by:
Robbie Ko <robbieko@synology.com> Reviewed-by:
David Sterba <dsterba@suse.com> Signed-off-by:
David Sterba <dsterba@suse.com>
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fa91e4aa
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