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udf: Convert udf_symlink_filler() to use a folio

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Remove the conversion to struct page and use folio APIs throughout.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Message-Id: <20240417150416.752929-2-willy@infradead.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2024-04-17 16:04:07 +01:00 committed by Jan Kara
parent 9ec2b35016
commit b591dfb833
1 changed files with 6 additions and 16 deletions
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22
fs/udf/symlink.c
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@ -99,18 +99,17 @@ static int udf_pc_to_char(struct super_block *sb, unsigned char *from,
static int udf_symlink_filler(struct file *file, struct folio *folio)
{
struct page *page = &folio->page;
struct inode *inode = page->mapping->host;
struct inode *inode = folio->mapping->host;
struct buffer_head *bh = NULL;
unsigned char *symlink;
int err = 0;
unsigned char *p = page_address(page);
unsigned char *p = folio_address(folio);
struct udf_inode_info *iinfo = UDF_I(inode);
/* We don't support symlinks longer than one block */
if (inode->i_size > inode->i_sb->s_blocksize) {
err = -ENAMETOOLONG;
goto out_unlock;
goto out;
}
if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
@ -120,24 +119,15 @@ static int udf_symlink_filler(struct file *file, struct folio *folio)
if (!bh) {
if (!err)
err = -EFSCORRUPTED;
goto out_err;
goto out;
}
symlink = bh->b_data;
}
err = udf_pc_to_char(inode->i_sb, symlink, inode->i_size, p, PAGE_SIZE);
brelse(bh);
if (err)
goto out_err;
SetPageUptodate(page);
unlock_page(page);
return 0;
out_err:
SetPageError(page);
out_unlock:
unlock_page(page);
out:
folio_end_read(folio, err == 0);
return err;
}