[f2fs-dev] [RFC PATCH v2 08/10] f2fs: allow large folio support to writeable files

[Nanzhe Zhao]

Now we make all write path support large folios,
so we open permission to let writeable file set
large folio mapping.

Signed-off-by: Nanzhe Zhao <zhaonanzhe@xxxxxxxxxx>
---
 fs/f2fs/file.c  | 14 --------------
 fs/f2fs/inode.c |  3 +--
 2 files changed, 1 insertion(+), 16 deletions(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index b723e0547fad..ae4536566843 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -88,17 +88,6 @@ static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf)
 	int err = 0;
 	vm_fault_t ret;
 
-	/*
-	 * We only support large folio on the read case.
-	 * Don't make any dirty pages.
-	 */
-	if (unlikely(IS_IMMUTABLE(inode)) ||
-	    mapping_large_folio_support(inode->i_mapping)) {
-		f2fs_err(sbi, "Not expected: immutable: %d large_folio: %d",
-				IS_IMMUTABLE(inode),
-				mapping_large_folio_support(inode->i_mapping));
-		return VM_FAULT_SIGBUS;
-	}
 
 	if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) {
 		err = -EIO;
@@ -653,9 +642,6 @@ static int f2fs_file_open(struct inode *inode, struct file *filp)
 	if (!f2fs_is_compress_backend_ready(inode))
 		return -EOPNOTSUPP;
 
-	if (mapping_large_folio_support(inode->i_mapping) &&
-	    filp->f_mode & FMODE_WRITE)
-		return -EOPNOTSUPP;
 
 	err = fsverity_file_open(inode, filp);
 	if (err)
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index c95e0b126da4..5b4503c092b2 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -629,8 +629,7 @@ struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
 		inode->i_op = &f2fs_file_inode_operations;
 		inode->i_fop = &f2fs_file_operations;
 		inode->i_mapping->a_ops = &f2fs_dblock_aops;
-		if (IS_IMMUTABLE(inode) && !f2fs_compressed_file(inode) &&
-		    !f2fs_quota_file(sbi, inode->i_ino))
+		if (!f2fs_has_inline_data(inode))
 			mapping_set_folio_min_order(inode->i_mapping, 0);
 	} else if (S_ISDIR(inode->i_mode)) {
 		inode->i_op = &f2fs_dir_inode_operations;
-- 
2.34.1