tree b6392f24142e9199a7a0b34e29ac2f6c82a221d7
parent 6fd058f7791087648c683eb8572edf3be3c4c23c
author Theodore Ts'o <tytso@mit.edu> 1242617483 -0400
committer Theodore Ts'o <tytso@mit.edu> 1242617483 -0400

ext4: down i_data_sem only for read when walking tree for fiemap

Not sure why I put this in as down_write originally; all we are
doing is walking the tree, nothing will change under us and
concurrent reads should be no problem.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>