From: Yue Hu <zbestahu@gmail.com>
To: xiang@kernel.org, chao@kernel.org, linux-erofs@lists.ozlabs.org
Cc: huyue2@coolpad.com, linux-kernel@vger.kernel.org, zhangwen@coolpad.com
Subject: [PATCH] erofs: do not build pcpubuf.c for uncompressed data
Date: Thu, 27 Apr 2023 11:03:46 +0800 [thread overview]
Message-ID: <20230427030346.5624-1-zbestahu@gmail.com> (raw)
From: Yue Hu <huyue2@coolpad.com>
The function of pcpubuf.c is just for low-latency decompression
algorithms (e.g. lz4).
Signed-off-by: Yue Hu <huyue2@coolpad.com>
---
fs/erofs/Makefile | 4 ++--
fs/erofs/internal.h | 12 +++++++-----
2 files changed, 9 insertions(+), 7 deletions(-)
diff --git a/fs/erofs/Makefile b/fs/erofs/Makefile
index 99bbc597a3e9..a3a98fc3e481 100644
--- a/fs/erofs/Makefile
+++ b/fs/erofs/Makefile
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0-only
obj-$(CONFIG_EROFS_FS) += erofs.o
-erofs-objs := super.o inode.o data.o namei.o dir.o utils.o pcpubuf.o sysfs.o
+erofs-objs := super.o inode.o data.o namei.o dir.o utils.o sysfs.o
erofs-$(CONFIG_EROFS_FS_XATTR) += xattr.o
-erofs-$(CONFIG_EROFS_FS_ZIP) += decompressor.o zmap.o zdata.o
+erofs-$(CONFIG_EROFS_FS_ZIP) += decompressor.o zmap.o zdata.o pcpubuf.o
erofs-$(CONFIG_EROFS_FS_ZIP_LZMA) += decompressor_lzma.o
erofs-$(CONFIG_EROFS_FS_ONDEMAND) += fscache.o
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index af0431a40647..65dbfa76f854 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -472,11 +472,6 @@ static inline void *erofs_vm_map_ram(struct page **pages, unsigned int count)
return NULL;
}
-void *erofs_get_pcpubuf(unsigned int requiredpages);
-void erofs_put_pcpubuf(void *ptr);
-int erofs_pcpubuf_growsize(unsigned int nrpages);
-void __init erofs_pcpubuf_init(void);
-void erofs_pcpubuf_exit(void);
int erofs_register_sysfs(struct super_block *sb);
void erofs_unregister_sysfs(struct super_block *sb);
@@ -512,6 +507,11 @@ int z_erofs_load_lz4_config(struct super_block *sb,
struct z_erofs_lz4_cfgs *lz4, int len);
int z_erofs_map_blocks_iter(struct inode *inode, struct erofs_map_blocks *map,
int flags);
+void *erofs_get_pcpubuf(unsigned int requiredpages);
+void erofs_put_pcpubuf(void *ptr);
+int erofs_pcpubuf_growsize(unsigned int nrpages);
+void __init erofs_pcpubuf_init(void);
+void erofs_pcpubuf_exit(void);
#else
static inline void erofs_shrinker_register(struct super_block *sb) {}
static inline void erofs_shrinker_unregister(struct super_block *sb) {}
@@ -529,6 +529,8 @@ static inline int z_erofs_load_lz4_config(struct super_block *sb,
}
return 0;
}
+static inline void erofs_pcpubuf_init(void) {}
+static inline void erofs_pcpubuf_exit(void) {}
#endif /* !CONFIG_EROFS_FS_ZIP */
#ifdef CONFIG_EROFS_FS_ZIP_LZMA
--
2.17.1
next reply other threads:[~2023-04-27 3:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-27 3:03 Yue Hu [this message]
2023-04-27 3:14 ` [PATCH] erofs: do not build pcpubuf.c for uncompressed data Gao Xiang
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