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isofs: Convert rock_ridge_symlink_read_folio to use a folio

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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>
This commit is contained in:
Matthew Wilcox (Oracle) 2024-05-30 21:20:58 +01:00 committed by Christian Brauner
parent 4c59e914ef
commit 4df37c5f08
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GPG Key ID: 91C61BC06578DCA2
1 changed files with 8 additions and 9 deletions
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17
fs/isofs/rock.c
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@ -688,11 +688,10 @@ int parse_rock_ridge_inode(struct iso_directory_record *de, struct inode *inode,
*/
static int rock_ridge_symlink_read_folio(struct file *file, struct folio *folio)
{
struct page *page = &folio->page;
struct inode *inode = page->mapping->host;
struct inode *inode = folio->mapping->host;
struct iso_inode_info *ei = ISOFS_I(inode);
struct isofs_sb_info *sbi = ISOFS_SB(inode->i_sb);
char *link = page_address(page);
char *link = folio_address(folio);
unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
struct buffer_head *bh;
char *rpnt = link;
@ -779,9 +778,10 @@ repeat:
goto fail;
brelse(bh);
*rpnt = '\0';
SetPageUptodate(page);
unlock_page(page);
return 0;
ret = 0;
end:
folio_end_read(folio, ret == 0);
return ret;
/* error exit from macro */
out:
@ -795,9 +795,8 @@ out_bad_span:
fail:
brelse(bh);
error:
SetPageError(page);
unlock_page(page);
return -EIO;
ret = -EIO;
goto end;
}
const struct address_space_operations isofs_symlink_aops = {