tree 9bc771d91851db6f0655f23fdb3b7fd3e127cb52
parent df031f0752d50f2061df2847d57ea52a79f7977c
author Liu Bo <bo.li.liu@oracle.com> 1347069690 -0600
committer Chris Mason <chris.mason@fusionio.com> 1349119159 -0400

Btrfs: use larger limit for translation of logical to inode

This is the change of the kernel side.

Translation of logical to inode used to have an upper limit 4k on
inode container's size, but the limit is not large enough for a data
with a great many of refs, so when resolving logical address,
we can end up with
"ioctl ret=0, bytes_left=0, bytes_missing=19944, cnt=510, missed=2493"

This changes to regard 64k as the upper limit and use vmalloc instead of
kmalloc to get memory more easily.

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>