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reiserfs: Convert reiserfs_write_begin() to use a folio

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Remove a few 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) 2024-07-10 22:50:29 -04:00 committed by Christian Brauner
parent 24481ffdc0
commit cc67bcb2c3
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GPG Key ID: 91C61BC06578DCA2
1 changed files with 10 additions and 9 deletions
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19
fs/reiserfs/inode.c
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@ -2738,20 +2738,21 @@ static int reiserfs_write_begin(struct file *file,
struct page **pagep, void **fsdata)
{
struct inode *inode;
struct page *page;
struct folio *folio;
pgoff_t index;
int ret;
int old_ref = 0;
inode = mapping->host;
index = pos >> PAGE_SHIFT;
page = grab_cache_page_write_begin(mapping, index);
if (!page)
return -ENOMEM;
*pagep = page;
folio = __filemap_get_folio(mapping, index, FGP_WRITEBEGIN,
mapping_gfp_mask(mapping));
if (IS_ERR(folio))
return PTR_ERR(folio);
*pagep = &folio->page;
reiserfs_wait_on_write_block(inode->i_sb);
fix_tail_page_for_writing(page);
fix_tail_page_for_writing(&folio->page);
if (reiserfs_transaction_running(inode->i_sb)) {
struct reiserfs_transaction_handle *th;
th = (struct reiserfs_transaction_handle *)current->
@ -2761,7 +2762,7 @@ static int reiserfs_write_begin(struct file *file,
old_ref = th->t_refcount;
th->t_refcount++;
}
ret = __block_write_begin(page, pos, len, reiserfs_get_block);
ret = __block_write_begin(&folio->page, pos, len, reiserfs_get_block);
if (ret && reiserfs_transaction_running(inode->i_sb)) {
struct reiserfs_transaction_handle *th = current->journal_info;
/*
@ -2791,8 +2792,8 @@ static int reiserfs_write_begin(struct file *file,
}
}
if (ret) {
unlock_page(page);
put_page(page);
folio_unlock(folio);
folio_put(folio);
/* Truncate allocated blocks */
reiserfs_truncate_failed_write(inode);
}