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-rw-r--r--fs/f2fs/data.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 2938311c97bf..59203a3c143e 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -658,6 +658,13 @@ alloc:
return 0;
}
+static inline bool __force_buffered_io(struct inode *inode, int rw)
+{
+ return ((f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode)) ||
+ (rw == WRITE && test_opt(F2FS_I_SB(inode), LFS)) ||
+ F2FS_I_SB(inode)->s_ndevs);
+}
+
int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from)
{
struct inode *inode = file_inode(iocb->ki_filp);
@@ -677,7 +684,10 @@ int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from)
err = f2fs_convert_inline_inode(inode);
if (err)
return err;
- return f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO);
+ return f2fs_map_blocks(inode, &map, 1,
+ __force_buffered_io(inode, WRITE) ?
+ F2FS_GET_BLOCK_PRE_AIO :
+ F2FS_GET_BLOCK_PRE_DIO);
}
if (iocb->ki_pos + iov_iter_count(from) > MAX_INLINE_DATA) {
err = f2fs_convert_inline_inode(inode);
@@ -1769,11 +1779,7 @@ static ssize_t f2fs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
if (err)
return err;
- if (f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode))
- return 0;
- if (rw == WRITE && test_opt(F2FS_I_SB(inode), LFS))
- return 0;
- if (F2FS_I_SB(inode)->s_ndevs)
+ if (__force_buffered_io(inode, rw))
return 0;
trace_f2fs_direct_IO_enter(inode, offset, count, rw);