From: Al Viro <viro@zeniv.linux.org.uk>
To: linux-fsdevel@vger.kernel.org
Cc: torvalds@linux-foundation.org, brauner@kernel.org, jack@suse.cz,
raven@themaw.net, miklos@szeredi.hu, a.hindborg@kernel.org,
linux-mm@kvack.org, linux-efi@vger.kernel.org,
ocfs2-devel@lists.linux.dev, kees@kernel.org,
rostedt@goodmis.org, gregkh@linuxfoundation.org,
linux-usb@vger.kernel.org, paul@paul-moore.com,
casey@schaufler-ca.com, linuxppc-dev@lists.ozlabs.org,
borntraeger@linux.ibm.com
Subject: [PATCH 12/39] convert mqueue
Date: Sat, 20 Sep 2025 08:47:31 +0100 [thread overview]
Message-ID: <20250920074759.3564072-12-viro@zeniv.linux.org.uk> (raw)
In-Reply-To: <20250920074759.3564072-1-viro@zeniv.linux.org.uk>
All modifications via normal VFS codepaths; just take care of making
persistent in in mqueue_create_attr() and discardable in mqueue_unlink()
and it doesn't need kill_litter_super() at all.
mqueue_unlink() side is best handled by having it call simple_unlink()
rather than duplicating its guts...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
ipc/mqueue.c | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 093551fe66a7..5737130137bf 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -599,8 +599,7 @@ static int mqueue_create_attr(struct dentry *dentry, umode_t mode, void *arg)
dir->i_size += DIRENT_SIZE;
simple_inode_init_ts(dir);
- d_instantiate(dentry, inode);
- dget(dentry);
+ d_make_persistent(dentry, inode);
return 0;
out_unlock:
spin_unlock(&mq_lock);
@@ -617,13 +616,8 @@ static int mqueue_create(struct mnt_idmap *idmap, struct inode *dir,
static int mqueue_unlink(struct inode *dir, struct dentry *dentry)
{
- struct inode *inode = d_inode(dentry);
-
- simple_inode_init_ts(dir);
dir->i_size -= DIRENT_SIZE;
- drop_nlink(inode);
- dput(dentry);
- return 0;
+ return simple_unlink(dir, dentry);
}
/*
@@ -1638,7 +1632,7 @@ static const struct fs_context_operations mqueue_fs_context_ops = {
static struct file_system_type mqueue_fs_type = {
.name = "mqueue",
.init_fs_context = mqueue_init_fs_context,
- .kill_sb = kill_litter_super,
+ .kill_sb = kill_anon_super,
.fs_flags = FS_USERNS_MOUNT,
};
--
2.47.3
next prev parent reply other threads:[~2025-09-20 7:48 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-20 7:41 [PATCHES][RFC] the meat of tree-in-dcache series Al Viro
2025-09-20 7:47 ` [PATCH 01/39] new helper: simple_remove_by_name() Al Viro
2025-09-20 7:47 ` [PATCH 02/39] new helper: simple_done_creating() Al Viro
2025-09-20 7:47 ` [PATCH 03/39] introduce a flag for explicitly marking persistently pinned dentries Al Viro
2025-09-20 7:47 ` [PATCH 04/39] primitives for maintaining persisitency Al Viro
2025-09-20 7:47 ` [PATCH 05/39] convert simple_{link,unlink,rmdir,rename,fill_super}() to new primitives Al Viro
2025-09-20 7:47 ` [PATCH 06/39] convert ramfs and tmpfs Al Viro
2025-09-20 7:47 ` [PATCH 07/39] procfs: make /self and /thread_self dentries persistent Al Viro
2025-09-20 7:47 ` [PATCH 08/39] configfs, securityfs: kill_litter_super() not needed Al Viro
2025-09-24 16:56 ` Joel Becker
2025-09-20 7:47 ` [PATCH 09/39] convert xenfs Al Viro
2025-09-20 7:47 ` [PATCH 10/39] convert smackfs Al Viro
2025-09-22 15:11 ` Casey Schaufler
2025-09-20 7:47 ` [PATCH 11/39] convert hugetlbfs Al Viro
2025-09-20 7:47 ` Al Viro [this message]
2025-09-20 7:47 ` [PATCH 13/39] convert bpf Al Viro
2025-09-20 7:47 ` [PATCH 14/39] convert dlmfs Al Viro
2025-09-20 7:47 ` [PATCH 15/39] convert fuse_ctl Al Viro
2025-09-20 7:47 ` [PATCH 16/39] convert pstore Al Viro
2025-09-20 7:47 ` [PATCH 17/39] convert tracefs Al Viro
2025-09-20 7:47 ` [PATCH 18/39] convert debugfs Al Viro
2025-09-23 8:10 ` Greg KH
2025-09-20 7:47 ` [PATCH 19/39] debugfs: remove duplicate checks in callers of start_creating() Al Viro
2025-09-23 8:10 ` Greg KH
2025-09-20 7:47 ` [PATCH 20/39] convert efivarfs Al Viro
2025-09-20 7:47 ` [PATCH 21/39] convert spufs Al Viro
2025-09-20 7:47 ` [PATCH 22/39] convert ibmasmfs Al Viro
2025-09-20 7:47 ` [PATCH 23/39] ibmasmfs: get rid of ibmasmfs_dir_ops Al Viro
2025-09-20 7:47 ` [PATCH 24/39] convert devpts Al Viro
2025-09-20 7:47 ` [PATCH 25/39] binderfs: use simple_start_creating() Al Viro
2025-09-20 7:47 ` [PATCH 26/39] binderfs_binder_ctl_create(): kill a bogus check Al Viro
2025-09-20 7:47 ` [PATCH 27/39] convert binderfs Al Viro
2025-09-20 7:47 ` [PATCH 28/39] autofs_{rmdir,unlink}: dentry->d_fsdata->dentry == dentry there Al Viro
2025-09-20 7:47 ` [PATCH 29/39] convert autofs Al Viro
2025-09-20 7:47 ` [PATCH 30/39] convert binfmt_misc Al Viro
2025-09-20 7:47 ` [PATCH 31/39] convert selinuxfs Al Viro
2025-09-21 20:44 ` Paul Moore
2025-09-21 22:26 ` Al Viro
2025-09-22 2:50 ` Paul Moore
2025-09-22 3:52 ` Al Viro
2025-09-20 7:47 ` [PATCH 32/39] functionfs: switch to simple_remove_by_name() Al Viro
2025-09-20 7:47 ` [PATCH 33/39] convert functionfs Al Viro
2025-09-20 7:47 ` [PATCH 34/39] gadgetfs: switch to simple_remove_by_name() Al Viro
2025-09-20 7:47 ` [PATCH 35/39] convert gadgetfs Al Viro
2025-09-20 7:47 ` [PATCH 36/39] hypfs: don't pin dentries twice Al Viro
2025-09-20 7:47 ` [PATCH 37/39] hypfs: switch hypfs_create_str() to returning int Al Viro
2025-09-20 7:47 ` [PATCH 38/39] hypfs: swich hypfs_create_u64() " Al Viro
2025-09-20 7:47 ` [PATCH 39/39] convert hypfs Al Viro
2025-09-20 16:26 ` [PATCHES][RFC] the meat of tree-in-dcache series Linus Torvalds
2025-09-20 18:09 ` Al Viro
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