AcoSail/kernel_optimize_test
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Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block

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* 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block:
  [PATCH] splice: partial write fix
This commit is contained in:
Linus Torvalds 2007-03-29 08:23:52 -07:00
commit 22c8c65d24
1 changed files with 16 additions and 9 deletions
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25
fs/splice.c
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@ -627,18 +627,25 @@ static int pipe_to_file(struct pipe_inode_info *pipe, struct pipe_buffer *buf,
}
ret = mapping->a_ops->commit_write(file, page, offset, offset+this_len);
if (!ret) {
if (ret) {
if (ret == AOP_TRUNCATED_PAGE) {
page_cache_release(page);
goto find_page;
}
if (ret < 0)
goto out;
/*
* Return the number of bytes written and mark page as
* accessed, we are now done!
* Partial write has happened, so 'ret' already initialized by
* number of bytes written, Where is nothing we have to do here.
*/
} else
ret = this_len;
mark_page_accessed(page);
balance_dirty_pages_ratelimited(mapping);
} else if (ret == AOP_TRUNCATED_PAGE) {
page_cache_release(page);
goto find_page;
}
/*
* Return the number of bytes written and mark page as
* accessed, we are now done!
*/
mark_page_accessed(page);
balance_dirty_pages_ratelimited(mapping);
out:
page_cache_release(page);
unlock_page(page);