03acb9024b
To deal the with the cases which inplace decompression is infeasible for some inplace I/O. Per-CPU buffers was introduced to get rid of page allocation latency and thrash for low-latency decompression algorithms such as lz4. For the big pcluster feature, introduce multipage per-CPU buffers to keep such inplace I/O pclusters temporarily as well but note that per-CPU pages are just consecutive virtually. When a new big pcluster fs is mounted, its max pclustersize will be read and per-CPU buffers can be growed if needed. Shrinking adjustable per-CPU buffers is more complex (because we don't know if such size is still be used), so currently just release them all when unloading. Link: https://lore.kernel.org/r/20210409190630.19569-1-xiang@kernel.org Acked-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Gao Xiang <hsiangkao@redhat.com> Bug: 201372112 Change-Id: I5b3ab69ef58aaea635911b0c08cceeb4b38122da (cherry picked from commit 524887347fcb67faa0a63dd3c4c02ab48d4968d4) Signed-off-by: Huang Jianan <huangjianan@oppo.com>
7 lines
248 B
Makefile
7 lines
248 B
Makefile
# SPDX-License-Identifier: GPL-2.0-only
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obj-$(CONFIG_EROFS_FS) += erofs.o
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erofs-objs := super.o inode.o data.o namei.o dir.o utils.o pcpubuf.o
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erofs-$(CONFIG_EROFS_FS_XATTR) += xattr.o
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erofs-$(CONFIG_EROFS_FS_ZIP) += decompressor.o zmap.o zdata.o
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