Searched hist:fd73a439 (Results 1 – 4 of 4) sorted by relevance
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H A D | Kconfig | fd73a439 Sat Jul 22 04:45:38 CDT 2023 Jingbo Xu <jefflexu@linux.alibaba.com> erofs: boost negative xattr lookup with bloom filter
Optimise the negative xattr lookup with bloom filter.
The bit value for the bloom filter map has a reverse semantics for compatibility. That is, the bit value of 0 indicates existence, while the bit value of 1 indicates the absence of corresponding xattr.
The initial version is _only_ enabled when xattr_filter_reserved is zero. The filter map internals may change in the future, in which case the reserved flag will be set non-zero and we don't need bothering the compatible bits again at that time. For now disable the optimization if this reserved flag is non-zero.
Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com> Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com> Reviewed-by: Chao Yu <chao@kernel.org> Link: https://lore.kernel.org/r/20230722094538.11754-3-jefflexu@linux.alibaba.com Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
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H A D | xattr.c | fd73a439 Sat Jul 22 04:45:38 CDT 2023 Jingbo Xu <jefflexu@linux.alibaba.com> erofs: boost negative xattr lookup with bloom filter
Optimise the negative xattr lookup with bloom filter.
The bit value for the bloom filter map has a reverse semantics for compatibility. That is, the bit value of 0 indicates existence, while the bit value of 1 indicates the absence of corresponding xattr.
The initial version is _only_ enabled when xattr_filter_reserved is zero. The filter map internals may change in the future, in which case the reserved flag will be set non-zero and we don't need bothering the compatible bits again at that time. For now disable the optimization if this reserved flag is non-zero.
Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com> Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com> Reviewed-by: Chao Yu <chao@kernel.org> Link: https://lore.kernel.org/r/20230722094538.11754-3-jefflexu@linux.alibaba.com Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
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H A D | super.c | fd73a439 Sat Jul 22 04:45:38 CDT 2023 Jingbo Xu <jefflexu@linux.alibaba.com> erofs: boost negative xattr lookup with bloom filter
Optimise the negative xattr lookup with bloom filter.
The bit value for the bloom filter map has a reverse semantics for compatibility. That is, the bit value of 0 indicates existence, while the bit value of 1 indicates the absence of corresponding xattr.
The initial version is _only_ enabled when xattr_filter_reserved is zero. The filter map internals may change in the future, in which case the reserved flag will be set non-zero and we don't need bothering the compatible bits again at that time. For now disable the optimization if this reserved flag is non-zero.
Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com> Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com> Reviewed-by: Chao Yu <chao@kernel.org> Link: https://lore.kernel.org/r/20230722094538.11754-3-jefflexu@linux.alibaba.com Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
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H A D | internal.h | fd73a439 Sat Jul 22 04:45:38 CDT 2023 Jingbo Xu <jefflexu@linux.alibaba.com> erofs: boost negative xattr lookup with bloom filter
Optimise the negative xattr lookup with bloom filter.
The bit value for the bloom filter map has a reverse semantics for compatibility. That is, the bit value of 0 indicates existence, while the bit value of 1 indicates the absence of corresponding xattr.
The initial version is _only_ enabled when xattr_filter_reserved is zero. The filter map internals may change in the future, in which case the reserved flag will be set non-zero and we don't need bothering the compatible bits again at that time. For now disable the optimization if this reserved flag is non-zero.
Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com> Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com> Reviewed-by: Chao Yu <chao@kernel.org> Link: https://lore.kernel.org/r/20230722094538.11754-3-jefflexu@linux.alibaba.com Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
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