diff mbox series

[Concept,02/10] ext4l: Add fsync.c to build

Message ID 20251221113820.812060-3-sjg@u-boot.org
State New
Headers
Series ext4l: Add more ext4 files to the build (part E) |

Commit Message

Simon Glass Dec. 21, 2025, 11:38 a.m. UTC 
  From: Simon Glass <simon.glass@canonical.com>

Add fsync.c which provides filesystem sync operations.

Changes needed:
- Add ext4_uboot.h include to fsync.c
- Remove redundant Linux header includes
- Add trace_ext4_sync_file_enter/exit stubs
- Add dentry operation stubs (d_find_any_alias, dget_parent)
- Add sync operation stubs (sync_mapping_buffers, sync_inode_metadata,
  generic_buffers_fsync_noflush, file_write_and_wait_range,
  file_check_and_advance_wb_err)
- Add jbd2_trans_will_send_data_barrier stub
- Remove ext4_sync_file stub from stub.c (now in fsync.c)

Co-developed-by: Claude <noreply@anthropic.com>
Signed-off-by: Simon Glass <simon.glass@canonical.com>
---

 fs/ext4l/Makefile     |  2 +-
 fs/ext4l/ext4_uboot.h | 13 +++++++++++++
 fs/ext4l/fsync.c      |  9 +--------
 fs/ext4l/stub.c       | 10 ++++++----
 4 files changed, 21 insertions(+), 13 deletions(-)
diff mbox series

Patch

diff --git a/fs/ext4l/Makefile b/fs/ext4l/Makefile
index 73083e82cd8..96caa289be0 100644
--- a/fs/ext4l/Makefile
+++ b/fs/ext4l/Makefile
@@ -6,7 +6,7 @@ 
 obj-y := interface.o stub.o
 
 obj-y	+= balloc.o bitmap.o block_validity.o dir.o ext4_jbd2.o extents.o \
-		extents_status.o file.o hash.o ialloc.o \
+		extents_status.o file.o fsync.o hash.o ialloc.o \
 		indirect.o inode.o \
 		super.o xattr_hurd.o xattr_trusted.o \
 		xattr_user.o orphan.o
diff --git a/fs/ext4l/ext4_uboot.h b/fs/ext4l/ext4_uboot.h
index 5f466dbf005..0f0e9c91a12 100644
--- a/fs/ext4l/ext4_uboot.h
+++ b/fs/ext4l/ext4_uboot.h
@@ -1289,6 +1289,19 @@  typedef unsigned int projid_t;
 #define trace_ext4_write_begin(...)		do { } while (0)
 #define trace_ext4_write_end(...)		do { } while (0)
 #define trace_ext4_journalled_write_end(...)	do { } while (0)
+#define trace_ext4_sync_file_enter(...)		do { } while (0)
+#define trace_ext4_sync_file_exit(...)		do { } while (0)
+
+/* Dentry operations - stubs */
+#define d_find_any_alias(i)			({ (void)(i); (struct dentry *)NULL; })
+#define dget_parent(d)				({ (void)(d); (struct dentry *)NULL; })
+
+/* Sync operations - stubs */
+#define sync_mapping_buffers(m)			({ (void)(m); 0; })
+#define sync_inode_metadata(i, w)		({ (void)(i); (void)(w); 0; })
+#define generic_buffers_fsync_noflush(f, s, e, d) ({ (void)(f); (void)(s); (void)(e); (void)(d); 0; })
+#define file_write_and_wait_range(f, s, e)	({ (void)(f); (void)(s); (void)(e); 0; })
+#define file_check_and_advance_wb_err(f)	({ (void)(f); 0; })
 
 /* DAX stubs - DAX not supported in U-Boot */
 #define IS_DAX(inode)				(0)
diff --git a/fs/ext4l/fsync.c b/fs/ext4l/fsync.c
index e476c6de307..42a9e2bdbff 100644
--- a/fs/ext4l/fsync.c
+++ b/fs/ext4l/fsync.c
@@ -23,18 +23,11 @@ 
  * we can depend on generic_block_fdatasync() to sync the data blocks.
  */
 
-#include <linux/time.h>
-#include <linux/fs.h>
-#include <linux/sched.h>
-#include <linux/writeback.h>
-#include <linux/blkdev.h>
-#include <linux/buffer_head.h>
+#include "ext4_uboot.h"
 
 #include "ext4.h"
 #include "ext4_jbd2.h"
 
-#include <trace/events/ext4.h>
-
 /*
  * If we're not journaling and this is a just-created file, we have to
  * sync our parent directory (if it was freshly created) since
diff --git a/fs/ext4l/stub.c b/fs/ext4l/stub.c
index b378eab97a3..4dac514340c 100644
--- a/fs/ext4l/stub.c
+++ b/fs/ext4l/stub.c
@@ -107,6 +107,11 @@  int jbd2__journal_restart(void *handle, int nblocks, int revoke_records,
 	return 0;
 }
 
+int jbd2_trans_will_send_data_barrier(journal_t *journal, unsigned long tid)
+{
+	return 0;
+}
+
 /*
  * Stubs for balloc.c
  */
@@ -512,10 +517,7 @@  int ext4_dirblock_csum_verify(struct inode *inode, struct buffer_head *bh)
 
 /* ext4_ioctl is now in super.c */
 
-int ext4_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
-{
-	return 0;
-}
+/* ext4_sync_file is now in fsync.c */
 
 /*
  * Stubs for super.c