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isofs: Convert rock_ridge_symlink_read_folio to use a folio
Remove the conversion back into a page and use the folio APIs throughout. Remove the setting of PG_error instead of converting it; it is unused by core code or by the rest of isofs, so it serves no purpose here. Use folio_end_read() to save an atomic operation and unify the two exit paths. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Link: https://lore.kernel.org/r/20240530202110.2653630-7-willy@infradead.org Signed-off-by: Christian Brauner <brauner@kernel.org>
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parent
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@ -688,11 +688,10 @@ int parse_rock_ridge_inode(struct iso_directory_record *de, struct inode *inode,
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*/
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static int rock_ridge_symlink_read_folio(struct file *file, struct folio *folio)
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{
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struct page *page = &folio->page;
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struct inode *inode = page->mapping->host;
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struct inode *inode = folio->mapping->host;
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struct iso_inode_info *ei = ISOFS_I(inode);
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struct isofs_sb_info *sbi = ISOFS_SB(inode->i_sb);
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char *link = page_address(page);
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char *link = folio_address(folio);
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unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
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struct buffer_head *bh;
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char *rpnt = link;
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@ -779,9 +778,10 @@ repeat:
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goto fail;
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brelse(bh);
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*rpnt = '\0';
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SetPageUptodate(page);
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unlock_page(page);
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return 0;
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ret = 0;
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end:
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folio_end_read(folio, ret == 0);
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return ret;
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/* error exit from macro */
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out:
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@ -795,9 +795,8 @@ out_bad_span:
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fail:
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brelse(bh);
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error:
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SetPageError(page);
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unlock_page(page);
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return -EIO;
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ret = -EIO;
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goto end;
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}
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const struct address_space_operations isofs_symlink_aops = {
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