[PATCH V2 19/19] ext4: Enable ext4 inline support.

From: Tao Ma
Date: Mon Nov 21 2011 - 12:41:24 EST


From: Tao Ma <boyu.mt@xxxxxxxxxx>

Signed-off-by: Tao Ma <boyu.mt@xxxxxxxxxx>
---
fs/ext4/ext4.h | 1 +
fs/ext4/ialloc.c | 4 ++++
2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index a88bc00..784893a 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1414,6 +1414,7 @@ static inline void ext4_clear_state_flags(struct ext4_inode_info *ei)
#define EXT4_FEATURE_INCOMPAT_FLEX_BG 0x0200
#define EXT4_FEATURE_INCOMPAT_EA_INODE 0x0400 /* EA in inode */
#define EXT4_FEATURE_INCOMPAT_DIRDATA 0x1000 /* data in dirent */
+#define EXT4_FEATURE_INCOMPAT_INLINEDATA 0x2000 /* data in inode */

#define EXT2_FEATURE_COMPAT_SUPP EXT4_FEATURE_COMPAT_EXT_ATTR
#define EXT2_FEATURE_INCOMPAT_SUPP (EXT4_FEATURE_INCOMPAT_FILETYPE| \
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 00beb4f..4f7fe21 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -897,6 +897,10 @@ got:

ei->i_extra_isize = EXT4_SB(sb)->s_want_extra_isize;

+ ei->i_inline_off = 0;
+ if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_INLINEDATA))
+ ext4_set_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA);
+
ret = inode;
dquot_initialize(inode);
err = dquot_alloc_inode(inode);
--
1.7.0.4

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