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BACKPORT: erofs: rename utils.c to zutil.c

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Currently, utils.c is only useful if CONFIG_EROFS_FS_ZIP is on.
So let's rename it to zutil.c as well as avoid its inclusion if
CONFIG_EROFS_FS_ZIP is explicitly disabled.

Signed-off-by: Chunhai Guo <guochunhai@vivo.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20240401135550.2550043-1-guochunhai@vivo.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>

Bug: 348591003
Change-Id: I98318a99275e07059b1f8d89ac0fe213fe8300bb
(cherry picked from commit cacd5b04e2)
[Chunhai: Resolved minor conflict in fs/erofs/zutil.c]
Signed-off-by: Chunhai Guo <guochunhai@vivo.com>
This commit is contained in:
Chunhai Guo 2024-04-01 07:55:50 -06:00 committed by Sandeep Dhavale
parent 2d68f6d5bb
commit c69d9ecaf3
2 changed files with 12 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
fs/erofs/Makefile
View File

@ -1,9 +1,9 @@
# SPDX-License-Identifier: GPL-2.0-only
obj-$(CONFIG_EROFS_FS) += erofs.o
erofs-objs := super.o inode.o data.o namei.o dir.o utils.o sysfs.o
erofs-objs := super.o inode.o data.o namei.o dir.o sysfs.o
erofs-$(CONFIG_EROFS_FS_XATTR) += xattr.o
erofs-$(CONFIG_EROFS_FS_ZIP) += decompressor.o zmap.o zdata.o pcpubuf.o
erofs-$(CONFIG_EROFS_FS_ZIP) += decompressor.o zmap.o zdata.o pcpubuf.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

25
fs/erofs/utils.c → fs/erofs/zutil.c
View File

@ -5,6 +5,14 @@
*/
#include "internal.h"
static atomic_long_t erofs_global_shrink_cnt; /* for all mounted instances */
/* protected by 'erofs_sb_list_lock' */
static unsigned int shrinker_run_no;
/* protects the mounted 'erofs_sb_list' */
static DEFINE_SPINLOCK(erofs_sb_list_lock);
static LIST_HEAD(erofs_sb_list);
struct page *erofs_allocpage(struct page **pagepool, gfp_t gfp)
{
struct page *page = *pagepool;
@ -12,10 +20,9 @@ struct page *erofs_allocpage(struct page **pagepool, gfp_t gfp)
if (page) {
DBG_BUGON(page_ref_count(page) != 1);
*pagepool = (struct page *)page_private(page);
} else {
page = alloc_page(gfp);
return page;
}
return page;
return alloc_page(gfp);
}
void erofs_release_pages(struct page **pagepool)
@ -28,10 +35,6 @@ void erofs_release_pages(struct page **pagepool)
}
}
#ifdef CONFIG_EROFS_FS_ZIP
/* global shrink count (for all mounted EROFS instances) */
static atomic_long_t erofs_global_shrink_cnt;
static bool erofs_workgroup_get(struct erofs_workgroup *grp)
{
if (lockref_get_not_zero(&grp->lockref))
@ -171,13 +174,6 @@ static unsigned long erofs_shrink_workstation(struct erofs_sb_info *sbi,
return freed;
}
/* protected by 'erofs_sb_list_lock' */
static unsigned int shrinker_run_no;
/* protects the mounted 'erofs_sb_list' */
static DEFINE_SPINLOCK(erofs_sb_list_lock);
static LIST_HEAD(erofs_sb_list);
void erofs_shrinker_register(struct super_block *sb)
{
struct erofs_sb_info *sbi = EROFS_SB(sb);
@ -279,4 +275,3 @@ void erofs_exit_shrinker(void)
{
unregister_shrinker(&erofs_shrinker_info);
}
#endif /* !CONFIG_EROFS_FS_ZIP */