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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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@xxxxxxxxxx>
---
 include/linux/fs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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;
-- 
2.41.0





[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]

  Powered by Linux