From: David Howells <dhowells@redhat.com>
To: linux-fsdevel@vger.kernel.org
Cc: dhowells@redhat.com, linux-kernel@vger.kernel.org
Subject: [PATCH 4/4] statx: AFS: Return enhanced file attributes
Date: Thu, 17 Nov 2016 13:35:24 +0000 [thread overview]
Message-ID: <147938972442.13574.1819690786475800772.stgit@warthog.procyon.org.uk> (raw)
In-Reply-To: <147938969703.13574.10295364502230379833.stgit@warthog.procyon.org.uk>
Return enhanced file attributes from the AFS filesystem. This includes the
following:
(1) The data version number as st_version, setting STATX_VERSION.
(2) STATX_ATTR_AUTOMOUNT will be set on automount directories by virtue of
S_AUTOMOUNT being set on the inode. These are referrals to other
volumes or other cells.
(3) STATX_ATTR_UNLISTED_DENTS on a directory that does cell lookup for
non-existent names and mounts them (typically mounted on /afs with -o
autocell). The resulting directories are marked STATX_ATTR_FABRICATED
as they do not actually exist in the mounted AFS directory.
(4) Files, directories and symlinks accessed over AFS are marked
STATX_ATTR_REMOTE.
STATX_ATIME, STATX_CTIME and STATX_BLOCKS are cleared as AFS does not
support them.
Example output:
[root@andromeda ~]# ./samples/statx/test-statx /afs
statx(/afs) = 0
results=7ef
Size: 2048 Blocks: 0 IO Block: 4096 directory
Device: 00:25 Inode: 1 Links: 2
Access: (0777/drwxrwxrwx) Uid: 0 Gid: 0
Access: 2006-05-07 00:21:15.000000000+0100
Modify: 2006-05-07 00:21:15.000000000+0100
Change: 2006-05-07 00:21:15.000000000+0100
IO-blocksize: blksize=4096
Signed-off-by: David Howells <dhowells@redhat.com>
---
fs/afs/inode.c | 21 ++++++++++++++++-----
1 file changed, 16 insertions(+), 5 deletions(-)
diff --git a/fs/afs/inode.c b/fs/afs/inode.c
index 86cc7264c21c..b08c405a7e1b 100644
--- a/fs/afs/inode.c
+++ b/fs/afs/inode.c
@@ -72,9 +72,9 @@ static int afs_inode_map_status(struct afs_vnode *vnode, struct key *key)
inode->i_uid = vnode->status.owner;
inode->i_gid = GLOBAL_ROOT_GID;
inode->i_size = vnode->status.size;
- inode->i_ctime.tv_sec = vnode->status.mtime_server;
- inode->i_ctime.tv_nsec = 0;
- inode->i_atime = inode->i_mtime = inode->i_ctime;
+ inode->i_mtime.tv_sec = vnode->status.mtime_server;
+ inode->i_mtime.tv_nsec = 0;
+ inode->i_atime = inode->i_ctime = inode->i_mtime;
inode->i_blocks = 0;
inode->i_generation = vnode->fid.unique;
inode->i_version = vnode->status.data_version;
@@ -375,8 +375,7 @@ int afs_validate(struct afs_vnode *vnode, struct key *key)
/*
* read the attributes of an inode
*/
-int afs_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+int afs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
{
struct inode *inode;
@@ -385,6 +384,18 @@ int afs_getattr(struct vfsmount *mnt, struct dentry *dentry,
_enter("{ ino=%lu v=%u }", inode->i_ino, inode->i_generation);
generic_fillattr(inode, stat);
+
+ stat->result_mask &= ~(STATX_ATIME | STATX_CTIME | STATX_BLOCKS);
+ stat->result_mask |= STATX_VERSION;
+ stat->version = inode->i_version;
+
+ if (test_bit(AFS_VNODE_AUTOCELL, &AFS_FS_I(inode)->flags))
+ stat->attributes |= STATX_ATTR_UNLISTED_DENTS;
+
+ if (test_bit(AFS_VNODE_PSEUDODIR, &AFS_FS_I(inode)->flags))
+ stat->attributes |= STATX_ATTR_FABRICATED;
+ else
+ stat->attributes |= STATX_ATTR_REMOTE;
return 0;
}
next prev parent reply other threads:[~2016-11-17 17:11 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-17 13:34 [RFC][PATCH 0/4] Enhanced file stat system call David Howells
2016-11-17 13:35 ` [PATCH 1/4] statx: Add a system call to make enhanced file info available David Howells
2016-11-17 18:39 ` Jeff Layton
2016-11-18 2:32 ` Andreas Dilger
2016-11-18 8:59 ` David Howells
2016-11-18 8:59 ` David Howells
2016-11-18 9:25 ` Andreas Dilger
2016-11-18 9:25 ` Andreas Dilger
2016-11-17 23:40 ` Dave Chinner
2016-11-18 3:28 ` Andreas Dilger
2016-11-18 22:07 ` Dave Chinner
2016-11-18 22:54 ` David Howells
2016-11-19 22:43 ` Dave Chinner
2016-11-21 14:30 ` One Thousand Gnomes
2016-11-21 20:43 ` Dave Chinner
2016-11-22 10:39 ` David Howells
2016-11-22 13:55 ` Jeff Layton
2016-11-22 20:58 ` Dave Chinner
2016-11-18 9:53 ` David Howells
2016-11-18 8:48 ` David Howells
2016-11-18 12:01 ` Jeff Layton
2016-11-18 9:36 ` David Howells
2016-11-18 17:17 ` Jeff Layton
2016-11-18 18:04 ` David Howells
2016-11-18 18:54 ` Jeff Layton
2016-11-18 19:08 ` David Howells
2016-11-18 9:43 ` David Howells
2016-11-18 21:41 ` Dave Chinner
2016-11-18 22:24 ` David Howells
2016-11-18 10:29 ` David Howells
2016-11-18 10:29 ` David Howells
2016-11-18 21:27 ` Dave Chinner
2016-11-18 21:48 ` David Howells
2016-11-18 21:48 ` David Howells
2016-11-18 22:17 ` Dave Chinner
2016-11-18 22:17 ` Dave Chinner
2016-11-19 10:21 ` Michael Kerrisk (man-pages)
2016-11-17 13:35 ` [PATCH 2/4] statx: Ext4: Return enhanced file attributes David Howells
2016-11-18 3:30 ` Andreas Dilger
2016-11-17 13:35 ` [PATCH 3/4] statx: NFS: " David Howells
2016-11-17 13:35 ` David Howells [this message]
2016-11-18 3:34 ` [PATCH 4/4] statx: AFS: " Andreas Dilger
2016-11-18 8:47 ` David Howells
2016-11-17 14:39 ` [RFC][PATCH 0/4] Enhanced file stat system call One Thousand Gnomes
2016-11-17 15:10 ` Michael Kerrisk
2016-11-17 16:33 ` David Howells
2016-11-17 16:45 ` David Howells
2016-11-17 20:00 ` J. Bruce Fields
2016-11-18 2:30 ` Andreas Dilger
2016-11-18 4:29 ` NeilBrown
2016-11-18 13:41 ` One Thousand Gnomes
2016-11-18 13:49 ` David Howells
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=147938972442.13574.1819690786475800772.stgit@warthog.procyon.org.uk \
--to=dhowells@redhat.com \
--cc=linux-fsdevel@vger.kernel.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.