tree c88d71c4b2e41c1519851c54f52b96c523fa6a4c
parent a78186ebe516b6d7df43636603f0998803ab356a
author Jaegeuk Kim <jaegeuk@kernel.org> 1413603235 -0700
committer Jaegeuk Kim <jaegeuk@kernel.org> 1415059650 -0800

f2fs: avoid to allocate when inline_data was written

The sceanrio is like this.
inline_data   i_size     page                 write_begin/vm_page_mkwrite
  X             30       dirty_page
  X             30                            write to #4096 position
  X             30       get_dnode_of_data    wait for get_dnode_of_data
  O             30       write inline_data
  O             30                            get_dnode_of_data
  O             30                            reserve data block
..

In this case, we have #0 = NEW_ADDR and inline_data as well.
We should not allow this condition for further access.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>