[RFC PATCH v2 4/7] f2fs: move f2fs_force_buffered_io() into file.c

Eric Biggers
2022-05-18T23:53:39Z

From: Eric Biggers <ebiggers@google.com>

f2fs_force_buffered_io() is only used in file.c, so move it into there.
No behavior change. This makes it easier to review later patches.

Signed-off-by: Eric Biggers <ebiggers@google.com>
---
fs/f2fs/f2fs.h | 45 ---------------------------------------------
fs/f2fs/file.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 45 insertions(+), 45 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 271509b1c7928..2d6492c016ad6 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -4442,17 +4442,6 @@ static inline void f2fs_i_compr_blocks_update(struct inode *inode,
f2fs_mark_inode_dirty_sync(inode, true);
}

-static inline int block_unaligned_IO(struct inode *inode,
- struct kiocb *iocb, struct iov_iter *iter)
-{
- unsigned int i_blkbits = READ_ONCE(inode->i_blkbits);
- unsigned int blocksize_mask = (1 << i_blkbits) - 1;
- loff_t offset = iocb->ki_pos;
- unsigned long align = offset | iov_iter_alignment(iter);
-
- return align & blocksize_mask;
-}
-
static inline bool f2fs_allow_multi_device_dio(struct f2fs_sb_info *sbi,
int flag)
{
@@ -4463,40 +4452,6 @@ static inline bool f2fs_allow_multi_device_dio(struct f2fs_sb_info *sbi,
return sbi->aligned_blksize;
}

-static inline bool f2fs_force_buffered_io(struct inode *inode,
- struct kiocb *iocb, struct iov_iter *iter)
-{
- struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- int rw = iov_iter_rw(iter);
-
- if (!fscrypt_dio_supported(inode))
- return true;
- if (fsverity_active(inode))
- return true;
- if (f2fs_compressed_file(inode))
- return true;
-
- /* disallow direct IO if any of devices has unaligned blksize */
- if (f2fs_is_multi_device(sbi) && !sbi->aligned_blksize)
- return true;
- /*
- * for blkzoned device, fallback direct IO to buffered IO, so
- * all IOs can be serialized by log-structured write.
- */
- if (f2fs_sb_has_blkzoned(sbi))
- return true;
- if (f2fs_lfs_mode(sbi) && (rw == WRITE)) {
- if (block_unaligned_IO(inode, iocb, iter))
- return true;
- if (F2FS_IO_ALIGNED(sbi))
- return true;
- }
- if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED))
- return true;
-
- return false;
-}
-
static inline bool f2fs_need_verity(const struct inode *inode, pgoff_t idx)
{
return fsverity_active(inode) &&
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 5b89af0f27f05..67f2e21ffbd67 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -807,6 +807,51 @@ int f2fs_truncate(struct inode *inode)
return 0;
}

+static int block_unaligned_IO(struct inode *inode, struct kiocb *iocb,
+ struct iov_iter *iter)
+{
+ unsigned int i_blkbits = READ_ONCE(inode->i_blkbits);
+ unsigned int blocksize_mask = (1 << i_blkbits) - 1;
+ loff_t offset = iocb->ki_pos;
+ unsigned long align = offset | iov_iter_alignment(iter);
+
+ return align & blocksize_mask;
+}
+
+static inline bool f2fs_force_buffered_io(struct inode *inode,
+ struct kiocb *iocb, struct iov_iter *iter)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ int rw = iov_iter_rw(iter);
+
+ if (!fscrypt_dio_supported(inode))
+ return true;
+ if (fsverity_active(inode))
+ return true;
+ if (f2fs_compressed_file(inode))
+ return true;
+
+ /* disallow direct IO if any of devices has unaligned blksize */
+ if (f2fs_is_multi_device(sbi) && !sbi->aligned_blksize)
+ return true;
+ /*
+ * for blkzoned device, fallback direct IO to buffered IO, so
+ * all IOs can be serialized by log-structured write.
+ */
+ if (f2fs_sb_has_blkzoned(sbi))
+ return true;
+ if (f2fs_lfs_mode(sbi) && (rw == WRITE)) {
+ if (block_unaligned_IO(inode, iocb, iter))
+ return true;
+ if (F2FS_IO_ALIGNED(sbi))
+ return true;
+ }
+ if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED))
+ return true;
+
+ return false;
+}
+
int f2fs_getattr(struct user_namespace *mnt_userns, const struct path *path,
struct kstat *stat, u32 request_mask, unsigned int query_flags)
{
--
2.36.1