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reiserfs: Convert grab_tail_page() to use a folio

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Removes a call to grab_cache_page() and a few hidden 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)
2024-07-08 11:06:01 -04:00
committed by Christian Brauner
parent 8eb835a136
commit 24481ffdc0
1 changed files with 11 additions and 12 deletions
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23
fs/reiserfs/inode.c
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@@ -2178,7 +2178,7 @@ static int grab_tail_page(struct inode *inode,
unsigned long offset = (inode->i_size) & (PAGE_SIZE - 1);
struct buffer_head *bh;
struct buffer_head *head;
struct page *page;
struct folio *folio;
int error;
/*
@@ -2190,20 +2190,20 @@ static int grab_tail_page(struct inode *inode,
if ((offset & (blocksize - 1)) == 0) {
return -ENOENT;
}
page = grab_cache_page(inode->i_mapping, index);
error = -ENOMEM;
if (!page) {
goto out;
}
folio = __filemap_get_folio(inode->i_mapping, index,
FGP_LOCK | FGP_ACCESSED | FGP_CREAT,
mapping_gfp_mask(inode->i_mapping));
if (IS_ERR(folio))
return PTR_ERR(folio);
/* start within the page of the last block in the file */
start = (offset / blocksize) * blocksize;
error = __block_write_begin(page, start, offset - start,
error = __block_write_begin(&folio->page, start, offset - start,
reiserfs_get_block_create_0);
if (error)
goto unlock;
head = page_buffers(page);
head = folio_buffers(folio);
bh = head;
do {
if (pos >= start) {
@@ -2226,14 +2226,13 @@ static int grab_tail_page(struct inode *inode,
goto unlock;
}
*bh_result = bh;
*page_result = page;
*page_result = &folio->page;
out:
return error;
unlock:
unlock_page(page);
put_page(page);
folio_unlock(folio);
folio_put(folio);
return error;
}