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| author | OGAWA Hirofumi | 2006-01-08 10:02:13 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2006-01-09 05:13:47 +0100 |
| commit | 05eb0b51fb46430050d5873458612f53e0234f2e (patch) | |
| tree | 88b9398079f53f29dff7533fb27487ae725983b1 /mm/filemap.c | |
| parent | [PATCH] export/change sync_page_range/_nolock() (diff) | |
| download | kernel-qcow2-linux-05eb0b51fb46430050d5873458612f53e0234f2e.tar.gz kernel-qcow2-linux-05eb0b51fb46430050d5873458612f53e0234f2e.tar.xz kernel-qcow2-linux-05eb0b51fb46430050d5873458612f53e0234f2e.zip | |
[PATCH] fat: support a truncate() for expanding size (generic_cont_expand)
This patch changes generic_cont_expand(), in order to share the code
with fatfs.
- Use vmtruncate() if ->prepare_write() returns a error.
Even if ->prepare_write() returns an error, it may already have added some
blocks. So, this truncates blocks outside of ->i_size by vmtruncate().
- Add generic_cont_expand_simple().
The generic_cont_expand_simple() assumes that ->prepare_write() can handle
the block boundary. With this, we don't need to care the extra byte.
And for expanding a file size by truncate(), fatfs uses the
added generic_cont_expand_simple().
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/filemap.c')
0 files changed, 0 insertions, 0 deletions