diff mbox series

[87/87] fs: move i_blocks up a few places in struct inode

Message ID 20230928110554.34758-3-jlayton@kernel.org
State New
Headers show
Series [01/87] fs: new accessor methods for atime and mtime | expand

Commit Message

Jeff Layton Sept. 28, 2023, 11:05 a.m. UTC 
The recent change to use discrete integers instead of struct timespec64
in struct inode shaved 8 bytes off of it, but it also moves the i_lock
into the previous cacheline, away from the fields that it protects.

Move i_blocks up above the i_lock, which moves the new 4 byte hole to
just after the timestamps, without changing the size of the structure.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 include/linux/fs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/include/linux/fs.h b/include/linux/fs.h
index de902ff2938b..3e0fe0f52e7c 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -677,11 +677,11 @@  struct inode {
 	u32			i_atime_nsec;
 	u32			i_mtime_nsec;
 	u32			i_ctime_nsec;
+	blkcnt_t		i_blocks;
 	spinlock_t		i_lock;	/* i_blocks, i_bytes, maybe i_size */
 	unsigned short          i_bytes;
 	u8			i_blkbits;
 	u8			i_write_hint;
-	blkcnt_t		i_blocks;
 
 #ifdef __NEED_I_SIZE_ORDERED
 	seqcount_t		i_size_seqcount;