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| author | Hsin-Yi Wang <hsinyi@chromium.org> | 2022-06-17 11:38:13 +0300 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-07-30 04:12:34 +0300 |
| commit | 8fc78b6fe24c36b151ac98d7546591ed92083d4f (patch) | |
| tree | 76c29ca47f54977207b0dbe0301b5c9cd017038f /Documentation/arm | |
| parent | db98b43086275350294f5c6f797249b714d6316d (diff) | |
| download | linux-8fc78b6fe24c36b151ac98d7546591ed92083d4f.tar.xz | |
squashfs: implement readahead
Implement readahead callback for squashfs. It will read datablocks which
cover pages in readahead request. For a few cases it will not mark page
as uptodate, including:
- file end is 0.
- zero filled blocks.
- current batch of pages isn't in the same datablock.
- decompressor error.
Otherwise pages will be marked as uptodate. The unhandled pages will be
updated by readpage later.
Link: https://lkml.kernel.org/r/20220617083810.337573-4-hsinyi@chromium.org
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Suggested-by: Matthew Wilcox <willy@infradead.org>
Reported-by: Matthew Wilcox <willy@infradead.org>
Reported-by: Phillip Lougher <phillip@squashfs.org.uk>
Reported-by: Xiongwei Song <Xiongwei.Song@windriver.com>
Reported-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Hou Tao <houtao1@huawei.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Miao Xie <miaoxie@huawei.com>
Cc: Zhang Yi <yi.zhang@huawei.com>
Cc: Zheng Liang <zhengliang6@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'Documentation/arm')
0 files changed, 0 insertions, 0 deletions