From 5f5249507e4b5c4fc0f9c93f33d133d8c95f47e1 Mon Sep 17 00:00:00 2001 From: Mingming Date: Tue, 10 Nov 2009 10:48:04 -0500 Subject: ext4: skip conversion of uninit extents after direct IO if there isn't any At the end of direct I/O operation, ext4_ext_direct_IO() always called ext4_convert_unwritten_extents(), regardless of whether there were any unwritten extents involved in the I/O or not. This commit adds a state flag so that ext4_ext_direct_IO() only calls ext4_convert_unwritten_extents() when necessary. Signed-off-by: Mingming Cao Signed-off-by: "Theodore Ts'o" --- fs/ext4/ext4.h | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/ext4/ext4.h') diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 00d153f2f261..8825515eeddd 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -322,6 +322,7 @@ static inline __u32 ext4_mask_flags(umode_t mode, __u32 flags) #define EXT4_STATE_NO_EXPAND 0x00000008 /* No space for expansion */ #define EXT4_STATE_DA_ALLOC_CLOSE 0x00000010 /* Alloc DA blks on close */ #define EXT4_STATE_EXT_MIGRATE 0x00000020 /* Inode is migrating */ +#define EXT4_STATE_DIO_UNWRITTEN 0x00000040 /* need convert on dio done*/ /* Used to pass group descriptor data when online resize is done */ struct ext4_new_group_input { -- cgit v1.2.3