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SubjectRe: [PATCH 1/2] staging: erofs: fix compile error without built-in decompression support
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On 2018/7/29 13:34, Gao Xiang via Linux-erofs wrote:
> This patch fixes incorrect code snippets due to spilt code
> into small patches by mistake.
>
> Link: https://lists.01.org/pipermail/kbuild-all/2018-July/050747.html
> Link: https://lists.01.org/pipermail/kbuild-all/2018-July/050750.html
> Reported-by: kbuild test robot <lkp@intel.com>
> Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
> ---
> I test several Kconfig option combinations and all these
> combinations are successfully compiled.
>
> Hi Chao,
> Could you please review this two patches first before merging
> into staging-next tree?

Hi Xiang,

For this compiler issue, I think we only need to cover erofs_shrink_workstation
with marco CONFIG_EROFS_FS_ZIP, other modification like symbol name change or
relocate erofs_shrink_workstation are with other reason, so how about separate
them into different patches?

Thanks,

>
> Thanks,
> Gao Xiang
>
> drivers/staging/erofs/internal.h | 4 ++--
> drivers/staging/erofs/super.c | 2 +-
> drivers/staging/erofs/unzip_vle.c | 7 ++++---
> drivers/staging/erofs/utils.c | 7 ++++---
> 4 files changed, 11 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/staging/erofs/internal.h b/drivers/staging/erofs/internal.h
> index 669f93ae6920..367b39fe46e5 100644
> --- a/drivers/staging/erofs/internal.h
> +++ b/drivers/staging/erofs/internal.h
> @@ -260,9 +260,9 @@ static inline void erofs_workstation_cleanup_all(struct super_block *sb)
> #ifdef EROFS_FS_HAS_MANAGED_CACHE
> #define EROFS_UNALLOCATED_CACHED_PAGE ((void *)0x5F0EF00D)
>
> -extern int try_to_free_all_cached_pages(struct erofs_sb_info *sbi,
> +extern int erofs_try_to_free_all_cached_pages(struct erofs_sb_info *sbi,
> struct erofs_workgroup *egrp);
> -extern int try_to_free_cached_page(struct address_space *mapping,
> +extern int erofs_try_to_free_cached_page(struct address_space *mapping,
> struct page *page);
> #endif
>
> diff --git a/drivers/staging/erofs/super.c b/drivers/staging/erofs/super.c
> index 97da5c8a8ef3..1aec509c805f 100644
> --- a/drivers/staging/erofs/super.c
> +++ b/drivers/staging/erofs/super.c
> @@ -269,7 +269,7 @@ static int managed_cache_releasepage(struct page *page, gfp_t gfp_mask)
> BUG_ON(mapping->a_ops != &managed_cache_aops);
>
> if (PagePrivate(page))
> - ret = try_to_free_cached_page(mapping, page);
> + ret = erofs_try_to_free_cached_page(mapping, page);
>
> return ret;
> }
> diff --git a/drivers/staging/erofs/unzip_vle.c b/drivers/staging/erofs/unzip_vle.c
> index 7671fe8194ce..0e410a228cd4 100644
> --- a/drivers/staging/erofs/unzip_vle.c
> +++ b/drivers/staging/erofs/unzip_vle.c
> @@ -131,8 +131,8 @@ static bool grab_managed_cache_pages(struct address_space *mapping,
> }
>
> /* called by erofs_shrinker to get rid of all compressed_pages */
> -int try_to_free_all_cached_pages(struct erofs_sb_info *sbi,
> - struct erofs_workgroup *egrp)
> +int erofs_try_to_free_all_cached_pages(struct erofs_sb_info *sbi,
> + struct erofs_workgroup *egrp)
> {
> struct z_erofs_vle_workgroup *const grp =
> container_of(egrp, struct z_erofs_vle_workgroup, obj);
> @@ -166,7 +166,8 @@ int try_to_free_all_cached_pages(struct erofs_sb_info *sbi,
> return 0;
> }
>
> -int try_to_free_cached_page(struct address_space *mapping, struct page *page)
> +int erofs_try_to_free_cached_page(struct address_space *mapping,
> + struct page *page)
> {
> struct erofs_sb_info *const sbi = EROFS_SB(mapping->host->i_sb);
> const unsigned int clusterpages = erofs_clusterpages(sbi);
> diff --git a/drivers/staging/erofs/utils.c b/drivers/staging/erofs/utils.c
> index ee70bb9e1636..595cf90af9bb 100644
> --- a/drivers/staging/erofs/utils.c
> +++ b/drivers/staging/erofs/utils.c
> @@ -160,7 +160,7 @@ unsigned long erofs_shrink_workstation(struct erofs_sb_info *sbi,
> }
>
> #ifdef EROFS_FS_HAS_MANAGED_CACHE
> - if (try_to_free_all_cached_pages(sbi, grp))
> + if (erofs_try_to_free_all_cached_pages(sbi, grp))
> goto skip;
>
> erofs_workgroup_unfreeze(grp, 1);
> @@ -247,7 +247,9 @@ unsigned long erofs_shrink_scan(struct shrinker *shrink,
> spin_unlock(&erofs_sb_list_lock);
> sbi->shrinker_run_no = run_no;
>
> - /* add scan handlers here */
> +#ifdef CONFIG_EROFS_FS_ZIP
> + freed += erofs_shrink_workstation(sbi, nr, false);
> +#endif
>
> spin_lock(&erofs_sb_list_lock);
> /* Get the next list element before we move this one */
> @@ -260,7 +262,6 @@ unsigned long erofs_shrink_scan(struct shrinker *shrink,
> list_move_tail(&sbi->list, &erofs_sb_list);
> mutex_unlock(&sbi->umount_mutex);
>
> - freed += erofs_shrink_workstation(sbi, nr, false);
> if (freed >= nr)
> break;
> }
>

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