From: ira.weiny@intel.com
To: linux-kernel@vger.kernel.org,
"Darrick J. Wong" <darrick.wong@oracle.com>
Cc: Ira Weiny <ira.weiny@intel.com>,
Dan Williams <dan.j.williams@intel.com>,
Dave Chinner <david@fromorbit.com>,
Christoph Hellwig <hch@lst.de>,
"Theodore Y. Ts'o" <tytso@mit.edu>, Jan Kara <jack@suse.cz>,
Jeff Moyer <jmoyer@redhat.com>,
linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org,
linux-fsdevel@vger.kernel.org
Subject: [PATCH V7 7/9] fs: Define I_DONTCACNE in VFS layer
Date: Sun, 12 Apr 2020 22:40:44 -0700 [thread overview]
Message-ID: <20200413054046.1560106-8-ira.weiny@intel.com> (raw)
In-Reply-To: <20200413054046.1560106-1-ira.weiny@intel.com>
From: Ira Weiny <ira.weiny@intel.com>
DAX effective mode changes (setting of S_DAX) require inode eviction.
Define a flag which can be set to inform the VFS layer that inodes
should not be cached. This will expedite the eviction of those nodes
requiring reload.
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
---
include/linux/fs.h | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index a818ced22961..e2db71d150c3 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2151,6 +2151,8 @@ static inline void kiocb_clone(struct kiocb *kiocb, struct kiocb *kiocb_src,
*
* I_CREATING New object's inode in the middle of setting up.
*
+ * I_DONTCACHE Do not cache the inode
+ *
* Q: What is the difference between I_WILL_FREE and I_FREEING?
*/
#define I_DIRTY_SYNC (1 << 0)
@@ -2173,6 +2175,7 @@ static inline void kiocb_clone(struct kiocb *kiocb, struct kiocb *kiocb_src,
#define I_WB_SWITCH (1 << 13)
#define I_OVL_INUSE (1 << 14)
#define I_CREATING (1 << 15)
+#define I_DONTCACHE (1 << 16)
#define I_DIRTY_INODE (I_DIRTY_SYNC | I_DIRTY_DATASYNC)
#define I_DIRTY (I_DIRTY_INODE | I_DIRTY_PAGES)
@@ -3042,7 +3045,8 @@ extern int inode_needs_sync(struct inode *inode);
extern int generic_delete_inode(struct inode *inode);
static inline int generic_drop_inode(struct inode *inode)
{
- return !inode->i_nlink || inode_unhashed(inode);
+ return !inode->i_nlink || inode_unhashed(inode) ||
+ (inode->i_state & I_DONTCACHE);
}
extern struct inode *ilookup5_nowait(struct super_block *sb,
--
2.25.1
next prev parent reply other threads:[~2020-04-13 5:41 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-13 5:40 [PATCH V7 0/9] Enable per-file/per-directory DAX operations V7 ira.weiny
2020-04-13 5:40 ` [PATCH V7 1/9] fs/xfs: Remove unnecessary initialization of i_rwsem ira.weiny
2020-04-13 15:41 ` Darrick J. Wong
2020-04-13 5:40 ` [PATCH V7 2/9] fs: Remove unneeded IS_DAX() check in io_is_direct() ira.weiny
2020-04-14 6:22 ` Christoph Hellwig
2020-04-13 5:40 ` [PATCH V7 3/9] fs/stat: Define DAX statx attribute ira.weiny
2020-04-14 6:23 ` Christoph Hellwig
2020-04-14 20:39 ` Ira Weiny
2020-04-13 5:40 ` [PATCH V7 4/9] fs/xfs: Make DAX mount option a tri-state ira.weiny
2020-04-13 15:46 ` Darrick J. Wong
2020-04-13 19:28 ` Ira Weiny
2020-04-14 6:24 ` Christoph Hellwig
2020-04-14 6:25 ` Christoph Hellwig
2020-04-14 20:34 ` Ira Weiny
2020-04-13 5:40 ` [PATCH V7 5/9] fs/xfs: Create function xfs_inode_enable_dax() ira.weiny
2020-04-13 15:52 ` Darrick J. Wong
2020-04-13 19:39 ` Ira Weiny
2020-04-14 6:27 ` Christoph Hellwig
2020-04-14 20:43 ` Ira Weiny
2020-04-13 5:40 ` [PATCH V7 6/9] fs/xfs: Combine xfs_diflags_to_linux() and xfs_diflags_to_iflags() ira.weiny
2020-04-13 16:01 ` Darrick J. Wong
2020-04-14 4:07 ` Ira Weiny
2020-04-13 5:40 ` ira.weiny [this message]
2020-04-13 16:09 ` [PATCH V7 7/9] fs: Define I_DONTCACNE in VFS layer Darrick J. Wong
2020-04-13 16:13 ` Darrick J. Wong
2020-04-13 19:44 ` Ira Weiny
2020-04-14 15:26 ` Jan Kara
2020-04-14 15:45 ` Ira Weiny
2020-04-14 15:59 ` Jan Kara
2020-04-13 5:40 ` [PATCH V7 8/9] fs/xfs: Change xfs_ioctl_setattr_dax_invalidate() ira.weiny
2020-04-13 16:12 ` Darrick J. Wong
2020-04-13 19:46 ` Ira Weiny
2020-04-13 5:40 ` [PATCH V7 9/9] Documentation/dax: Update Usage section ira.weiny
2020-04-13 16:19 ` Darrick J. Wong
2020-04-14 4:38 ` Ira Weiny
2020-04-14 5:12 ` Dan Williams
2020-04-14 19:48 ` Ira Weiny
2020-04-15 8:23 ` Jan Kara
2020-04-14 5:21 ` Dan Williams
2020-04-14 16:15 ` Darrick J. Wong
2020-04-14 19:04 ` Dan Williams
2020-04-14 19:57 ` Darrick J. Wong
2020-04-14 20:00 ` Ira Weiny
2020-04-14 20:18 ` Darrick J. Wong
2020-04-14 20:54 ` Ira Weiny
2020-04-14 21:02 ` Darrick J. Wong
2020-04-14 19:58 ` Ira Weiny
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