ext4: correctly handle pages w/o buffers in ext4_discard_partial_buffers()
authorYongqiang Yang <xiaoqiangnk@gmail.com>
Wed, 14 Dec 2011 03:05:05 +0000 (22:05 -0500)
committerTheodore Ts'o <tytso@mit.edu>
Wed, 14 Dec 2011 03:05:05 +0000 (22:05 -0500)
commit093e6e3666f47d29763a235b404c84ee47ba8bb0
treea337f1415bf1c98b63fa5536c42b97059309b8d1
parent13a79a4741d37fda2fbafb953f0f301dc007928f
ext4: correctly handle pages w/o buffers in ext4_discard_partial_buffers()

If a page has been read into memory and never been written, it has no
buffers, but we should handle the page in truncate or punch hole.

VFS code of writing operations has handled holes correctly, so this
patch removes the code handling holes in writing operations.

Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org
fs/ext4/inode.c