From: "Theodore Ts'o" <tytso@mit.edu>
To: akpm@osdl.org
Cc: linux-kernel@vger.kernel.org
Subject: [patch 8/8] inode-diet: Fix size of i_blkbits, i_version, and i_dnotify_mask
Date: Sun, 02 Jul 2006 20:53:41 -0400 [thread overview]
Message-ID: <20060703010023.959783000@candygram.thunk.org> (raw)
In-Reply-To: 20060703005333.706556000@candygram.thunk.org
[-- Attachment #1: inode-slim-8 --]
[-- Type: text/plain, Size: 1412 bytes --]
i_blkbits stores the log n of the blocksize; there is no reason for it
to take more than 16 bits, so change it to be a short and put it next
to i_mode.
i_version and i_dnotify_mask need to be 32 bits, but there is no
reason for them to be 64-bit values on 64-bit architectures, so make
them be unsigned int's instead of unsigned long's.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Index: linux-2.6.17-mm5/include/linux/fs.h
===================================================================
--- linux-2.6.17-mm5.orig/include/linux/fs.h 2006-07-02 20:29:52.000000000 -0400
+++ linux-2.6.17-mm5/include/linux/fs.h 2006-07-02 20:29:55.000000000 -0400
@@ -498,6 +498,7 @@
unsigned long i_ino;
atomic_t i_count;
umode_t i_mode;
+ unsigned short i_blkbits;
unsigned int i_nlink;
uid_t i_uid;
gid_t i_gid;
@@ -505,8 +506,7 @@
struct timespec i_atime;
struct timespec i_mtime;
struct timespec i_ctime;
- unsigned int i_blkbits;
- unsigned long i_version;
+ unsigned int i_version;
spinlock_t i_lock; /* i_blocks, i_bytes, maybe i_size */
struct mutex i_mutex;
struct rw_semaphore i_alloc_sem;
@@ -538,7 +538,7 @@
__u32 i_generation;
#ifdef CONFIG_DNOTIFY
- unsigned long i_dnotify_mask; /* Directory notify events */
+ unsigned int i_dnotify_mask; /* Directory notify events */
struct dnotify_struct *i_dnotify; /* for directory notifications */
#endif
--
prev parent reply other threads:[~2006-07-03 1:02 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-03 0:53 [patch 0/8] Inode slimming patches, part 1 Theodore Ts'o
2006-07-03 0:53 ` [patch 1/8] inode_diet: Replace inode.u.generic_ip with inode.i_private Theodore Ts'o
2006-07-03 0:53 ` [patch 2/8] inode-diet: Move i_pipe into a union Theodore Ts'o
2006-07-03 0:53 ` [patch 3/8] inode-diet: Move i_bdev " Theodore Ts'o
2006-07-03 0:53 ` [patch 4/8] inode-diet: Move i_cdev " Theodore Ts'o
2006-07-03 0:53 ` [patch 5/8] inode-diet: Eliminate i_blksize and use a per-superblock default Theodore Ts'o
2006-07-03 0:53 ` [patch 6/8] inode-diet: Move i_cindex from struct inode to struct file Theodore Ts'o
2006-07-03 9:05 ` Christoph Hellwig
2006-07-03 14:05 ` Theodore Tso
2006-07-03 0:53 ` [patch 7/8] inode-diet: Use a union for i_blocks and i_size, i_rdev and i_devices Theodore Ts'o
2006-07-03 8:27 ` Andrew Morton
2006-07-03 14:35 ` Hugh Dickins
2006-07-03 9:06 ` Christoph Hellwig
2006-07-03 14:02 ` Theodore Tso
2006-07-03 14:42 ` Jan Engelhardt
2006-07-03 15:18 ` H. Peter Anvin
2006-07-03 0:53 ` Theodore Ts'o [this message]
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