Btrfs: handle errors in compression submission path

Browse source

I noticed we would deadlock if we aborted a transaction while doing
compressed io.  This is because we don't unlock our pages if something goes
horribly wrong.  To fix this we need to make sure that we call
extent_clear_unlock_delalloc in order to unlock all the pages.  If we have
to cow in the async submission thread we need to make sure to unlock our
locked_page as the cow error path will not unlock the locked page as it
depends on the caller to unlock that page.  With this patch we no longer
deadlock on the page lock when we have an aborted transaction.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>

...

This commit is contained in:

Josef Bacik 2013-02-06 16:49:15 -05:00

parent 70afa3998c

commit 3e04e7f10b

1 changed files with 28 additions and 10 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

38

fs/btrfs/inode.c

View file