Searched hist:"6 aaa7b06" (Results 1 – 3 of 3) sorted by relevance
| /openbmc/linux/fs/erofs/ |
| H A D | compress.h | 6aaa7b06 Tue Dec 08 03:58:32 CST 2020 Gao Xiang <hsiangkao@redhat.com> erofs: get rid of magical Z_EROFS_MAPPING_STAGING
Previously, we played around with magical page->mapping for short-lived
temporary pages since we need to identify different types of pages in
the same pcluster but both invalidated and short-lived temporary pages
can have page->mapping == NULL. It was considered as safe because that
temporary pages are all non-LRU / non-movable pages.
This patch tends to use specific page->private to identify short-lived
pages instead so it won't rely on page->mapping anymore. Details are
described in "compress.h" as well.
Link: https://lore.kernel.org/r/20201208095834.3133565-1-hsiangkao@redhat.com
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
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| H A D | decompressor.c | 6aaa7b06 Tue Dec 08 03:58:32 CST 2020 Gao Xiang <hsiangkao@redhat.com> erofs: get rid of magical Z_EROFS_MAPPING_STAGING
Previously, we played around with magical page->mapping for short-lived
temporary pages since we need to identify different types of pages in
the same pcluster but both invalidated and short-lived temporary pages
can have page->mapping == NULL. It was considered as safe because that
temporary pages are all non-LRU / non-movable pages.
This patch tends to use specific page->private to identify short-lived
pages instead so it won't rely on page->mapping anymore. Details are
described in "compress.h" as well.
Link: https://lore.kernel.org/r/20201208095834.3133565-1-hsiangkao@redhat.com
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
|
| H A D | zdata.c | 6aaa7b06 Tue Dec 08 03:58:32 CST 2020 Gao Xiang <hsiangkao@redhat.com> erofs: get rid of magical Z_EROFS_MAPPING_STAGING
Previously, we played around with magical page->mapping for short-lived
temporary pages since we need to identify different types of pages in
the same pcluster but both invalidated and short-lived temporary pages
can have page->mapping == NULL. It was considered as safe because that
temporary pages are all non-LRU / non-movable pages.
This patch tends to use specific page->private to identify short-lived
pages instead so it won't rely on page->mapping anymore. Details are
described in "compress.h" as well.
Link: https://lore.kernel.org/r/20201208095834.3133565-1-hsiangkao@redhat.com
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
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