mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-06 02:50:43 +00:00
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>
This commit is contained in:
parent
fa91e4aa17
commit
5909ca110b
1 changed files with 2 additions and 1 deletions
|
@ -1999,7 +1999,8 @@ static int __process_pages_contig(struct address_space *mapping,
|
|||
if (!PageDirty(pages[i]) ||
|
||||
pages[i]->mapping != mapping) {
|
||||
unlock_page(pages[i]);
|
||||
put_page(pages[i]);
|
||||
for (; i < ret; i++)
|
||||
put_page(pages[i]);
|
||||
err = -EAGAIN;
|
||||
goto out;
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue