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fs: Convert mpage_readpage to mpage_read_folio

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mpage_readpage still works in terms of pages, and has not been audited
for correctness with large folios, so include an assertion that the
filesystem is not passing it large folios.  Convert all the filesystems
to call mpage_read_folio() instead of mpage_readpage().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2022-07-21 12:00:32 +09:00 committed by Namjae Jeon
parent 7bcf79cf5a
commit c9d13ea12a
1 changed files with 11 additions and 0 deletions
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11
inode.c
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@ -337,10 +337,17 @@ unlock_ret:
return err;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 19, 0)
static int exfat_read_folio(struct file *file, struct folio *folio)
{
return mpage_read_folio(folio, exfat_get_block);
}
#else
static int exfat_readpage(struct file *file, struct page *page)
{
return mpage_readpage(page, exfat_get_block);
}
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 8, 0)
static void exfat_readahead(struct readahead_control *rac)
@ -516,7 +523,11 @@ static const struct address_space_operations exfat_aops = {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 18, 0)
.invalidate_folio = block_invalidate_folio,
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 19, 0)
.read_folio = exfat_read_folio,
#else
.readpage = exfat_readpage,
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 8, 0)
.readahead = exfat_readahead,
#else