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sysv: Convert sysv_make_empty() to use a folio

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Removes a few hidden calls to compound_head().

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2024-07-09 10:49:54 -04:00 committed by Christian Brauner
parent 9b1cf7790e
commit 7f4fb15063
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GPG Key ID: 91C61BC06578DCA2
1 changed files with 12 additions and 12 deletions
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24
fs/sysv/dir.c
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@ -252,33 +252,33 @@ int sysv_delete_entry(struct sysv_dir_entry *de, struct folio *folio)
int sysv_make_empty(struct inode *inode, struct inode *dir)
{
struct page *page = grab_cache_page(inode->i_mapping, 0);
struct folio *folio = filemap_grab_folio(inode->i_mapping, 0);
struct sysv_dir_entry * de;
char *base;
char *kaddr;
int err;
if (!page)
return -ENOMEM;
err = sysv_prepare_chunk(page, 0, 2 * SYSV_DIRSIZE);
if (IS_ERR(folio))
return PTR_ERR(folio);
err = sysv_prepare_chunk(&folio->page, 0, 2 * SYSV_DIRSIZE);
if (err) {
unlock_page(page);
folio_unlock(folio);
goto fail;
}
base = kmap_local_page(page);
memset(base, 0, PAGE_SIZE);
kaddr = kmap_local_folio(folio, 0);
memset(kaddr, 0, folio_size(folio));
de = (struct sysv_dir_entry *) base;
de = (struct sysv_dir_entry *)kaddr;
de->inode = cpu_to_fs16(SYSV_SB(inode->i_sb), inode->i_ino);
strcpy(de->name,".");
de++;
de->inode = cpu_to_fs16(SYSV_SB(inode->i_sb), dir->i_ino);
strcpy(de->name,"..");
kunmap_local(base);
dir_commit_chunk(page, 0, 2 * SYSV_DIRSIZE);
kunmap_local(kaddr);
dir_commit_chunk(&folio->page, 0, 2 * SYSV_DIRSIZE);
err = sysv_handle_dirsync(inode);
fail:
put_page(page);
folio_put(folio);
return err;
}