The patch titled
fs: inode - remove 8 bytes of padding on 64bits allowing 1 more objects/slab under slub
has been added to the -mm tree. Its filename is
fs-inode-remove-8-bytes-of-padding-on-64bits-allowing-1-more-objects-slab-under-slub.patch
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------------------------------------------------------
Subject: fs: inode - remove 8 bytes of padding on 64bits allowing 1 more objects/slab under slub
From: Richard Kennedy <richard@xxxxxxxxxxxxxxx>
This removes 8 bytes of padding from struct inode on 64bit builds, and so
allows 1 more object/slab in the inode_cache when using slub.
Signed-off-by: Richard Kennedy <richard@xxxxxxxxxxxxxxx>
Acked-by: Jan Kara <jack@xxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/fs.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN include/linux/fs.h~fs-inode-remove-8-bytes-of-padding-on-64bits-allowing-1-more-objects-slab-under-slub include/linux/fs.h
--- a/include/linux/fs.h~fs-inode-remove-8-bytes-of-padding-on-64bits-allowing-1-more-objects-slab-under-slub
+++ a/include/linux/fs.h
@@ -729,6 +729,7 @@ struct inode {
uid_t i_uid;
gid_t i_gid;
dev_t i_rdev;
+ unsigned int i_blkbits;
u64 i_version;
loff_t i_size;
#ifdef __NEED_I_SIZE_ORDERED
@@ -738,7 +739,6 @@ struct inode {
struct timespec i_mtime;
struct timespec i_ctime;
blkcnt_t i_blocks;
- unsigned int i_blkbits;
unsigned short i_bytes;
umode_t i_mode;
spinlock_t i_lock; /* i_blocks, i_bytes, maybe i_size */
_
Patches currently in -mm which might be from richard@xxxxxxxxxxxxxxx are
linux-next.patch
fs-buffer_head-remove-kmem_cache-constructor-to-reduce-memory-usage-under-slub.patch
cpuidle-menu-remove-8-bytes-of-padding-on-64-bit-builds.patch
fs-inode-remove-8-bytes-of-padding-on-64bits-allowing-1-more-objects-slab-under-slub.patch
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