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| author | Hsin-Yi Wang <[email protected]> | 2022-06-17 08:38:13 +0000 |
|---|---|---|
| committer | akpm <[email protected]> | 2022-07-30 01:12:34 +0000 |
| commit | 8fc78b6fe24c36b151ac98d7546591ed92083d4f (patch) | |
| tree | 76c29ca47f54977207b0dbe0301b5c9cd017038f /fs/proc/array.c | |
| parent | squashfs: always build "file direct" version of page actor (diff) | |
| download | kernel-8fc78b6fe24c36b151ac98d7546591ed92083d4f.tar.gz kernel-8fc78b6fe24c36b151ac98d7546591ed92083d4f.zip | |
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/[email protected]
Signed-off-by: Hsin-Yi Wang <[email protected]>
Suggested-by: Matthew Wilcox <[email protected]>
Reported-by: Matthew Wilcox <[email protected]>
Reported-by: Phillip Lougher <[email protected]>
Reported-by: Xiongwei Song <[email protected]>
Reported-by: Andrew Morton <[email protected]>
Cc: Hou Tao <[email protected]>
Cc: kernel test robot <[email protected]>
Cc: Marek Szyprowski <[email protected]>
Cc: Miao Xie <[email protected]>
Cc: Zhang Yi <[email protected]>
Cc: Zheng Liang <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'fs/proc/array.c')
0 files changed, 0 insertions, 0 deletions