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Btrfs: don't commit the transaction if we dont have enough pinned bytes

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I noticed when running an enospc test that we would get stuck committing the
transaction in check_data_space even though we truly didn't have enough space.
So check to see if bytes_pinned is bigger than num_bytes, if it's not don't
commit the transaction.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
This commit is contained in:
Josef Bacik 2011-05-25 13:10:16 -04:00
parent 3de85bb95c
commit f2bb8f5cfb
1 changed files with 7 additions and 0 deletions
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7
fs/btrfs/extent-tree.c
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@ -3089,6 +3089,13 @@ alloc:
}
goto again;
}
/*
* If we have less pinned bytes than we want to allocate then
* don't bother committing the transaction, it won't help us.
*/
if (data_sinfo->bytes_pinned < bytes)
committed = 1;
spin_unlock(&data_sinfo->lock);
/* commit the current transaction and try again */