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BACKPORT: erofs: avoid pcpubuf.c inclusion if CONFIG_EROFS_FS_ZIP is off

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The function of pcpubuf.c is just for low-latency decompression
algorithms (e.g. lz4).

Bug: 348591003
Change-Id: I15651e5b7d66b6072ffb3f9985f7a828e0cad37e
Signed-off-by: Yue Hu <huyue2@coolpad.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Link: https://lore.kernel.org/r/20230515095758.10391-1-zbestahu@gmail.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
(cherry picked from commit 285d0f85da)
[Chunhai: Resolved minor conflict in fs/erofs/internal.h]
Signed-off-by: Chunhai Guo <guochunhai@vivo.com>
This commit is contained in:
Yue Hu
2023-05-15 17:57:58 +08:00
committed by Matthias Männich
parent 91f4830fba
commit a3fb83b3f5
2 changed files with 9 additions and 9 deletions
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4
fs/erofs/Makefile
View File

@@ -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

14
fs/erofs/internal.h
View File

@@ -430,6 +430,11 @@ int z_erofs_fill_inode(struct inode *inode);
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 erofs_pcpubuf_init(void);
void erofs_pcpubuf_exit(void);
#else
static inline int z_erofs_fill_inode(struct inode *inode) { return -EOPNOTSUPP; }
static inline int z_erofs_map_blocks_iter(struct inode *inode,
@@ -438,6 +443,8 @@ static inline int z_erofs_map_blocks_iter(struct inode *inode,
{
return -EOPNOTSUPP;
}
static inline void erofs_pcpubuf_init(void) {}
static inline void erofs_pcpubuf_exit(void) {}
#endif /* !CONFIG_EROFS_FS_ZIP */
struct erofs_map_dev {
@@ -507,13 +514,6 @@ static inline void *erofs_vm_map_ram(struct page **pages, unsigned int count)
return NULL;
}
/* pcpubuf.c */
void *erofs_get_pcpubuf(unsigned int requiredpages);
void erofs_put_pcpubuf(void *ptr);
int erofs_pcpubuf_growsize(unsigned int nrpages);
void erofs_pcpubuf_init(void);
void erofs_pcpubuf_exit(void);
/* sysfs.c */
int erofs_register_sysfs(struct super_block *sb);
void erofs_unregister_sysfs(struct super_block *sb);