diff options
| author | Chunhai Guo <guochunhai@vivo.com> | 2024-04-02 13:00:36 +0300 |
|---|---|---|
| committer | Gao Xiang <hsiangkao@linux.alibaba.com> | 2024-05-08 12:12:49 +0300 |
| commit | f36f3010f67611a45d66e773bc91e4c66a9abab5 (patch) | |
| tree | 8eea1fa6dd42d314a15641fd422f7998cad69a05 /fs/erofs/Makefile | |
| parent | cacd5b04e24c74a813c694ec7b26a1a370b5d666 (diff) | |
| download | linux-f36f3010f67611a45d66e773bc91e4c66a9abab5.tar.xz | |
erofs: rename per-CPU buffers to global buffer pool and make it configurable
It will cost more time if compressed buffers are allocated on demand for
low-latency algorithms (like lz4) so EROFS uses per-CPU buffers to keep
compressed data if in-place decompression is unfulfilled. While it is kind
of wasteful of memory for a device with hundreds of CPUs, and only a small
number of CPUs concurrently decompress most of the time.
This patch renames it as 'global buffer pool' and makes it configurable.
This allows two or more CPUs to share a common buffer to reduce memory
occupation.
Suggested-by: Gao Xiang <xiang@kernel.org>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Chunhai Guo <guochunhai@vivo.com>
Link: https://lore.kernel.org/r/20240402100036.2673604-1-guochunhai@vivo.com
Signed-off-by: Sandeep Dhavale <dhavale@google.com>
Link: https://lore.kernel.org/r/20240408215231.3376659-1-dhavale@google.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Diffstat (limited to 'fs/erofs/Makefile')
| -rw-r--r-- | fs/erofs/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/erofs/Makefile b/fs/erofs/Makefile index 845eafdcee4a..20d1ec422443 100644 --- a/fs/erofs/Makefile +++ b/fs/erofs/Makefile @@ -3,7 +3,7 @@ obj-$(CONFIG_EROFS_FS) += erofs.o erofs-objs := super.o inode.o data.o namei.o dir.o sysfs.o erofs-$(CONFIG_EROFS_FS_XATTR) += xattr.o -erofs-$(CONFIG_EROFS_FS_ZIP) += decompressor.o zmap.o zdata.o pcpubuf.o zutil.o +erofs-$(CONFIG_EROFS_FS_ZIP) += decompressor.o zmap.o zdata.o zutil.o erofs-$(CONFIG_EROFS_FS_ZIP_LZMA) += decompressor_lzma.o erofs-$(CONFIG_EROFS_FS_ZIP_DEFLATE) += decompressor_deflate.o erofs-$(CONFIG_EROFS_FS_ONDEMAND) += fscache.o |