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| author | Zheng Liu <wenqing.lz@taobao.com> | 2013-01-28 15:21:37 +0100 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2013-01-28 15:21:37 +0100 |
| commit | 8bad6fc813a3a5300f51369c39d315679fd88c72 (patch) | |
| tree | c455b1f18cc19627a9ab1055d57b72042aeae0a0 /fs/ext4/page-io.c | |
| parent | ext4: fix memory leak when quota options are specified multiple times (diff) | |
| download | linux-8bad6fc813a3a5300f51369c39d315679fd88c72.tar.xz linux-8bad6fc813a3a5300f51369c39d315679fd88c72.zip | |
ext4: add punching hole support for non-extent-mapped files
This patch add supports for indirect file support punching hole. It
is almost the same as ext4_ext_punch_hole. First, we invalidate all
pages between this hole, and then we try to deallocate all blocks of
this hole.
A recursive function is used to handle deallocation of blocks. In
this function, it iterates over the entries in inode's i_blocks or
indirect blocks, and try to free the block for each one of them.
After applying this patch, xfstest #255 will not pass w/o extent because
indirect-based file doesn't support unwritten extents.
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/page-io.c')
0 files changed, 0 insertions, 0 deletions