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authorTao Ma <boyu.mt@taobao.com>2012-12-10 14:05:51 -0500
committerTheodore Ts'o <tytso@mit.edu>2012-12-10 14:05:51 -0500
commitf19d5870cbf72d4cb2a8e1f749dff97af99b071e (patch)
treee919ba96fde504b6d697d1e13abb080d7800f61b /fs/ext4/ext4.h
parent46c7f254543dedcf134ad05091ed2b935a9a597d (diff)
ext4: add normal write support for inline data
For a normal write case (not journalled write, not delayed allocation), we write to the inline if the file is small and convert it to an extent based file when the write is larger than the max inline size. Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/ext4.h')
-rw-r--r--fs/ext4/ext4.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index c827e47d556..9f4efc6c37b 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -2018,8 +2018,19 @@ struct buffer_head *ext4_getblk(handle_t *, struct inode *,
ext4_lblk_t, int, int *);
struct buffer_head *ext4_bread(handle_t *, struct inode *,
ext4_lblk_t, int, int *);
+int ext4_get_block_write(struct inode *inode, sector_t iblock,
+ struct buffer_head *bh_result, int create);
int ext4_get_block(struct inode *inode, sector_t iblock,
struct buffer_head *bh_result, int create);
+int ext4_walk_page_buffers(handle_t *handle,
+ struct buffer_head *head,
+ unsigned from,
+ unsigned to,
+ int *partial,
+ int (*fn)(handle_t *handle,
+ struct buffer_head *bh));
+int do_journal_get_write_access(handle_t *handle,
+ struct buffer_head *bh);
extern struct inode *ext4_iget(struct super_block *, unsigned long);
extern int ext4_write_inode(struct inode *, struct writeback_control *);