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qnx6: Convert qnx6_checkroot() to use a folio

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Removes a use of kmap and removes a conversion from folio to page.

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) 2024-07-10 08:22:12 -04:00 committed by Christian Brauner
parent b2f2454c36
commit 29c42e8b8a
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GPG Key ID: 91C61BC06578DCA2
1 changed files with 5 additions and 5 deletions
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10
fs/qnx6/inode.c
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@ -184,17 +184,17 @@ static const char *qnx6_checkroot(struct super_block *s)
struct qnx6_dir_entry *dir_entry;
struct inode *root = d_inode(s->s_root);
struct address_space *mapping = root->i_mapping;
struct page *page = read_mapping_page(mapping, 0, NULL);
if (IS_ERR(page))
struct folio *folio = read_mapping_folio(mapping, 0, NULL);
if (IS_ERR(folio))
return "error reading root directory";
kmap(page);
dir_entry = page_address(page);
dir_entry = kmap_local_folio(folio, 0);
for (i = 0; i < 2; i++) {
/* maximum 3 bytes - due to match_root limitation */
if (strncmp(dir_entry[i].de_fname, match_root[i], 3))
error = 1;
}
qnx6_put_page(page);
folio_release_kmap(folio, dir_entry);
if (error)
return "error reading root directory.";
return NULL;