Btrfs: add del_ptr and insert_ptr modifications to the tree mod log
Btrfs: add del_ptr and insert_ptr modifications to the tree mod log

Record all relevant modifications to block pointers in the tree mod log so
that we can rewind them later on for backref walking.

Signed-off-by: Jan Schmidt <4f71970d0506cd4341522b2fa877abc3c9925755@jan-o-sch.net>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs