[PATCH v2 1/2] f2fs: enable inline data by default

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Enable inline_data feature by default since it brings us better
performance and space utilization and now has already stable.
Add another option noinline_data to disable it during mount.

Suggested-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
Suggested-by: Chao Yu <chao2.yu@xxxxxxxxxxx>
Signed-off-by: Wanpeng Li <wanpeng.li@xxxxxxxxxxxxxxx>
---
v1 -> v2:
 * retain inline_data option and enable it by default
 * add another noinline_data option

 Documentation/filesystems/f2fs.txt | 2 ++
 fs/f2fs/f2fs.h                     | 1 +
 fs/f2fs/inline.c                   | 2 +-
 fs/f2fs/super.c                    | 8 ++++++++
 4 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt
index 48e2123..e9e750e 100644
--- a/Documentation/filesystems/f2fs.txt
+++ b/Documentation/filesystems/f2fs.txt
@@ -144,6 +144,8 @@ extent_cache           Enable an extent cache based on rb-tree, it can cache
                        as many as extent which map between contiguous logical
                        address and physical address per inode, resulting in
                        increasing the cache hit ratio.
+noinline_data          Disable the inline data feature, inline data feature is
+                       enabled by default.
 
 ================================================================================
 DEBUGFS ENTRIES
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index f2909c6..6d4ceb3 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -51,6 +51,7 @@
 #define F2FS_MOUNT_NOBARRIER		0x00000800
 #define F2FS_MOUNT_FASTBOOT		0x00001000
 #define F2FS_MOUNT_EXTENT_CACHE		0x00002000
+#define F2FS_MOUNT_NOINLINE_DATA	0x00004000
 
 #define clear_opt(sbi, option)	(sbi->mount_opt.opt &= ~F2FS_MOUNT_##option)
 #define set_opt(sbi, option)	(sbi->mount_opt.opt |= F2FS_MOUNT_##option)
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index d3e0599..0363b57 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -15,7 +15,7 @@
 
 bool f2fs_may_inline(struct inode *inode)
 {
-	if (!test_opt(F2FS_I_SB(inode), INLINE_DATA))
+	if (!test_opt(F2FS_I_SB(inode), NOINLINE_DATA))
 		return false;
 
 	if (f2fs_is_atomic_file(inode))
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index fc6857f..7b17795 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -58,6 +58,7 @@ enum {
 	Opt_nobarrier,
 	Opt_fastboot,
 	Opt_extent_cache,
+	Opt_noinline_data,
 	Opt_err,
 };
 
@@ -80,6 +81,7 @@ static match_table_t f2fs_tokens = {
 	{Opt_nobarrier, "nobarrier"},
 	{Opt_fastboot, "fastboot"},
 	{Opt_extent_cache, "extent_cache"},
+	{Opt_noinline_data, "noinline_data"},
 	{Opt_err, NULL},
 };
 
@@ -372,6 +374,9 @@ static int parse_options(struct super_block *sb, char *options)
 		case Opt_extent_cache:
 			set_opt(sbi, EXTENT_CACHE);
 			break;
+		case Opt_noinline_data:
+			set_opt(sbi, NOINLINE_DATA);
+			break;
 		default:
 			f2fs_msg(sb, KERN_ERR,
 				"Unrecognized mount option \"%s\" or missing value",
@@ -606,6 +611,8 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
 		seq_puts(seq, ",fastboot");
 	if (test_opt(sbi, EXTENT_CACHE))
 		seq_puts(seq, ",extent_cache");
+	if (test_opt(sbi, NOINLINE_DATA))
+		seq_puts(seq, ",noinline_data");
 	seq_printf(seq, ",active_logs=%u", sbi->active_logs);
 
 	return 0;
@@ -991,6 +998,7 @@ try_onemore:
 	sbi->active_logs = NR_CURSEG_TYPE;
 
 	set_opt(sbi, BG_GC);
+	set_opt(sbi, INLINE_DATA);
 
 #ifdef CONFIG_F2FS_FS_XATTR
 	set_opt(sbi, XATTR_USER);
-- 
1.9.1

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