From: Theodore Tso <tytso@thunk.org>
To: linux-kernel@vger.kernel.org
Subject: [RFC] [PATCH 3/8] inode-diet: Move i_bdev into a union
Date: Wed, 21 Jun 2006 08:51:49 -0400 [thread overview]
Message-ID: <20060621125216.789960000@candygram.thunk.org> (raw)
In-Reply-To: 20060621125146.508341000@candygram.thunk.org
[-- Attachment #1: inode-slim-3 --]
[-- Type: text/plain, Size: 1520 bytes --]
Move the i_bdev pointer in struct inode into a union.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Index: linux-2.6.17/include/linux/fs.h
===================================================================
--- linux-2.6.17.orig/include/linux/fs.h 2006-06-18 19:39:52.000000000 -0400
+++ linux-2.6.17/include/linux/fs.h 2006-06-18 19:46:10.000000000 -0400
@@ -511,8 +511,8 @@
struct list_head i_devices;
union {
struct pipe_inode_info *i_pipe;
+ struct block_device *i_bdev;
};
- struct block_device *i_bdev;
struct cdev *i_cdev;
int i_cindex;
Index: linux-2.6.17/fs/block_dev.c
===================================================================
--- linux-2.6.17.orig/fs/block_dev.c 2006-06-18 19:37:14.000000000 -0400
+++ linux-2.6.17/fs/block_dev.c 2006-06-18 19:46:10.000000000 -0400
@@ -439,7 +439,7 @@
void bd_forget(struct inode *inode)
{
spin_lock(&bdev_lock);
- if (inode->i_bdev)
+ if (S_ISBLK(inode->i_mode) && inode->i_bdev)
__bd_forget(inode);
spin_unlock(&bdev_lock);
}
Index: linux-2.6.17/fs/inode.c
===================================================================
--- linux-2.6.17.orig/fs/inode.c 2006-06-18 19:42:16.000000000 -0400
+++ linux-2.6.17/fs/inode.c 2006-06-18 19:46:10.000000000 -0400
@@ -255,7 +255,7 @@
DQUOT_DROP(inode);
if (inode->i_sb && inode->i_sb->s_op->clear_inode)
inode->i_sb->s_op->clear_inode(inode);
- if (inode->i_bdev)
+ if (S_ISBLK(inode->i_mode) && inode->i_bdev)
bd_forget(inode);
if (inode->i_cdev)
cd_forget(inode);
--
next prev parent reply other threads:[~2006-06-21 12:53 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-21 12:51 [RFC] [PATCH 0/8] Inode diet v2 Theodore Tso
2006-06-21 12:51 ` [RFC] [PATCH 1/8] inode_diet: Replace inode.u.generic_ip with inode.i_private Theodore Tso
2006-06-21 13:23 ` Jan Engelhardt
2006-06-21 14:44 ` Brian F. G. Bidulock
2006-06-21 15:37 ` Theodore Tso
2006-06-21 12:51 ` [RFC] [PATCH 2/8] inode-diet: Move i_pipe into a union Theodore Tso
2006-06-21 12:51 ` Theodore Tso [this message]
2006-06-21 12:51 ` [RFC] [PATCH 4/8] inode-diet: Move i_cdev " Theodore Tso
2006-06-21 12:51 ` [RFC] [PATCH 5/8] inode-diet: Eliminate i_blksize and use a per-superblock default Theodore Tso
2006-06-21 12:51 ` [RFC] [PATCH 6/8] inode-diet: Move i_cindex from struct inode to struct file Theodore Tso
2006-06-21 12:51 ` [RFC] [PATCH 7/8] inode-diet: Use a union for i_blocks and i_size, i_rdev and i_devices Theodore Tso
2006-06-21 12:51 ` [RFC] [PATCH 8/8] inode-diet: Fix size of i_blkbits, i_version, and i_dnotify_mask Theodore Tso
[not found] ` <200606212335.00176.arnd@arndb.de>
2006-06-22 3:11 ` Theodore Tso
2006-06-21 14:42 ` [RFC] [PATCH 0/8] Inode diet v2 Brian F. G. Bidulock
2006-06-21 15:31 ` Nick Piggin
2006-06-21 16:06 ` Arjan van de Ven
2006-06-21 16:12 ` Brian F. G. Bidulock
2006-06-21 16:48 ` Theodore Tso
-- strict thread matches above, loose matches on Subject: below --
2006-06-19 15:20 [RFC] [PATCH 0/8] Inode slimming Theodore Tso
2006-06-19 15:20 ` [RFC] [PATCH 3/8] inode-diet: Move i_bdev into a union Theodore Tso
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20060621125216.789960000@candygram.thunk.org \
--to=tytso@thunk.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox