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Message-ID: <pgntaqxmxnoe2zujqmwswz5tfgob7p24it4ckhxlshy4v6d6ir@jabz5zepbz2x>
Date: Fri, 10 Oct 2025 16:12:40 +0200
From: Jan Kara <jack@...e.cz>
To: Mateusz Guzik <mjguzik@...il.com>
Cc: brauner@...nel.org, viro@...iv.linux.org.uk, jack@...e.cz,
linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org, josef@...icpanda.com,
kernel-team@...com, amir73il@...il.com, linux-btrfs@...r.kernel.org,
linux-ext4@...r.kernel.org, linux-xfs@...r.kernel.org, ceph-devel@...r.kernel.org,
linux-unionfs@...r.kernel.org
Subject: Re: [PATCH v7 07/14] ceph: use the new ->i_state accessors
On Thu 09-10-25 09:59:21, Mateusz Guzik wrote:
> Change generated with coccinelle and fixed up by hand as appropriate.
>
> Signed-off-by: Mateusz Guzik <mjguzik@...il.com>
Looks good. Feel free to add:
Reviewed-by: Jan Kara <jack@...e.cz>
Honza
> ---
>
> cheat sheet:
>
> If ->i_lock is held, then:
>
> state = inode->i_state => state = inode_state_read(inode)
> inode->i_state |= (I_A | I_B) => inode_state_set(inode, I_A | I_B)
> inode->i_state &= ~(I_A | I_B) => inode_state_clear(inode, I_A | I_B)
> inode->i_state = I_A | I_B => inode_state_assign(inode, I_A | I_B)
>
> If ->i_lock is not held or only held conditionally:
>
> state = inode->i_state => state = inode_state_read_once(inode)
> inode->i_state |= (I_A | I_B) => inode_state_set_raw(inode, I_A | I_B)
> inode->i_state &= ~(I_A | I_B) => inode_state_clear_raw(inode, I_A | I_B)
> inode->i_state = I_A | I_B => inode_state_assign_raw(inode, I_A | I_B)
>
> fs/ceph/cache.c | 2 +-
> fs/ceph/crypto.c | 4 ++--
> fs/ceph/file.c | 4 ++--
> fs/ceph/inode.c | 28 ++++++++++++++--------------
> 4 files changed, 19 insertions(+), 19 deletions(-)
>
> diff --git a/fs/ceph/cache.c b/fs/ceph/cache.c
> index 930fbd54d2c8..f678bab189d8 100644
> --- a/fs/ceph/cache.c
> +++ b/fs/ceph/cache.c
> @@ -26,7 +26,7 @@ void ceph_fscache_register_inode_cookie(struct inode *inode)
> return;
>
> /* Only new inodes! */
> - if (!(inode->i_state & I_NEW))
> + if (!(inode_state_read_once(inode) & I_NEW))
> return;
>
> WARN_ON_ONCE(ci->netfs.cache);
> diff --git a/fs/ceph/crypto.c b/fs/ceph/crypto.c
> index 7026e794813c..928746b92512 100644
> --- a/fs/ceph/crypto.c
> +++ b/fs/ceph/crypto.c
> @@ -329,7 +329,7 @@ int ceph_encode_encrypted_dname(struct inode *parent, char *buf, int elen)
> out:
> kfree(cryptbuf);
> if (dir != parent) {
> - if ((dir->i_state & I_NEW))
> + if ((inode_state_read_once(dir) & I_NEW))
> discard_new_inode(dir);
> else
> iput(dir);
> @@ -438,7 +438,7 @@ int ceph_fname_to_usr(const struct ceph_fname *fname, struct fscrypt_str *tname,
> fscrypt_fname_free_buffer(&_tname);
> out_inode:
> if (dir != fname->dir) {
> - if ((dir->i_state & I_NEW))
> + if ((inode_state_read_once(dir) & I_NEW))
> discard_new_inode(dir);
> else
> iput(dir);
> diff --git a/fs/ceph/file.c b/fs/ceph/file.c
> index 978acd3d4b32..1c9d73523b88 100644
> --- a/fs/ceph/file.c
> +++ b/fs/ceph/file.c
> @@ -741,7 +741,7 @@ static int ceph_finish_async_create(struct inode *dir, struct inode *inode,
> vino.ino, ceph_ino(dir), dentry->d_name.name);
> ceph_dir_clear_ordered(dir);
> ceph_init_inode_acls(inode, as_ctx);
> - if (inode->i_state & I_NEW) {
> + if (inode_state_read_once(inode) & I_NEW) {
> /*
> * If it's not I_NEW, then someone created this before
> * we got here. Assume the server is aware of it at
> @@ -903,7 +903,7 @@ int ceph_atomic_open(struct inode *dir, struct dentry *dentry,
> new_inode = NULL;
> goto out_req;
> }
> - WARN_ON_ONCE(!(new_inode->i_state & I_NEW));
> + WARN_ON_ONCE(!(inode_state_read_once(new_inode) & I_NEW));
>
> spin_lock(&dentry->d_lock);
> di->flags |= CEPH_DENTRY_ASYNC_CREATE;
> diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
> index 949f0badc944..4044a13969ad 100644
> --- a/fs/ceph/inode.c
> +++ b/fs/ceph/inode.c
> @@ -132,7 +132,7 @@ struct inode *ceph_new_inode(struct inode *dir, struct dentry *dentry,
> goto out_err;
> }
>
> - inode->i_state = 0;
> + inode_state_assign_raw(inode, 0);
> inode->i_mode = *mode;
>
> err = ceph_security_init_secctx(dentry, *mode, as_ctx);
> @@ -201,7 +201,7 @@ struct inode *ceph_get_inode(struct super_block *sb, struct ceph_vino vino,
>
> doutc(cl, "on %llx=%llx.%llx got %p new %d\n",
> ceph_present_inode(inode), ceph_vinop(inode), inode,
> - !!(inode->i_state & I_NEW));
> + !!(inode_state_read_once(inode) & I_NEW));
> return inode;
> }
>
> @@ -228,7 +228,7 @@ struct inode *ceph_get_snapdir(struct inode *parent)
> goto err;
> }
>
> - if (!(inode->i_state & I_NEW) && !S_ISDIR(inode->i_mode)) {
> + if (!(inode_state_read_once(inode) & I_NEW) && !S_ISDIR(inode->i_mode)) {
> pr_warn_once_client(cl, "bad snapdir inode type (mode=0%o)\n",
> inode->i_mode);
> goto err;
> @@ -261,7 +261,7 @@ struct inode *ceph_get_snapdir(struct inode *parent)
> }
> }
> #endif
> - if (inode->i_state & I_NEW) {
> + if (inode_state_read_once(inode) & I_NEW) {
> inode->i_op = &ceph_snapdir_iops;
> inode->i_fop = &ceph_snapdir_fops;
> ci->i_snap_caps = CEPH_CAP_PIN; /* so we can open */
> @@ -270,7 +270,7 @@ struct inode *ceph_get_snapdir(struct inode *parent)
>
> return inode;
> err:
> - if ((inode->i_state & I_NEW))
> + if ((inode_state_read_once(inode) & I_NEW))
> discard_new_inode(inode);
> else
> iput(inode);
> @@ -744,7 +744,7 @@ void ceph_evict_inode(struct inode *inode)
>
> netfs_wait_for_outstanding_io(inode);
> truncate_inode_pages_final(&inode->i_data);
> - if (inode->i_state & I_PINNING_NETFS_WB)
> + if (inode_state_read_once(inode) & I_PINNING_NETFS_WB)
> ceph_fscache_unuse_cookie(inode, true);
> clear_inode(inode);
>
> @@ -1013,7 +1013,7 @@ int ceph_fill_inode(struct inode *inode, struct page *locked_page,
> le64_to_cpu(info->version), ci->i_version);
>
> /* Once I_NEW is cleared, we can't change type or dev numbers */
> - if (inode->i_state & I_NEW) {
> + if (inode_state_read_once(inode) & I_NEW) {
> inode->i_mode = mode;
> } else {
> if (inode_wrong_type(inode, mode)) {
> @@ -1090,7 +1090,7 @@ int ceph_fill_inode(struct inode *inode, struct page *locked_page,
>
> #ifdef CONFIG_FS_ENCRYPTION
> if (iinfo->fscrypt_auth_len &&
> - ((inode->i_state & I_NEW) || (ci->fscrypt_auth_len == 0))) {
> + ((inode_state_read_once(inode) & I_NEW) || (ci->fscrypt_auth_len == 0))) {
> kfree(ci->fscrypt_auth);
> ci->fscrypt_auth_len = iinfo->fscrypt_auth_len;
> ci->fscrypt_auth = iinfo->fscrypt_auth;
> @@ -1692,13 +1692,13 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req)
> pr_err_client(cl, "badness %p %llx.%llx\n", in,
> ceph_vinop(in));
> req->r_target_inode = NULL;
> - if (in->i_state & I_NEW)
> + if (inode_state_read_once(in) & I_NEW)
> discard_new_inode(in);
> else
> iput(in);
> goto done;
> }
> - if (in->i_state & I_NEW)
> + if (inode_state_read_once(in) & I_NEW)
> unlock_new_inode(in);
> }
>
> @@ -1887,11 +1887,11 @@ static int readdir_prepopulate_inodes_only(struct ceph_mds_request *req,
> pr_err_client(cl, "inode badness on %p got %d\n", in,
> rc);
> err = rc;
> - if (in->i_state & I_NEW) {
> + if (inode_state_read_once(in) & I_NEW) {
> ihold(in);
> discard_new_inode(in);
> }
> - } else if (in->i_state & I_NEW) {
> + } else if (inode_state_read_once(in) & I_NEW) {
> unlock_new_inode(in);
> }
>
> @@ -2103,7 +2103,7 @@ int ceph_readdir_prepopulate(struct ceph_mds_request *req,
> pr_err_client(cl, "badness on %p %llx.%llx\n", in,
> ceph_vinop(in));
> if (d_really_is_negative(dn)) {
> - if (in->i_state & I_NEW) {
> + if (inode_state_read_once(in) & I_NEW) {
> ihold(in);
> discard_new_inode(in);
> }
> @@ -2113,7 +2113,7 @@ int ceph_readdir_prepopulate(struct ceph_mds_request *req,
> err = ret;
> goto next_item;
> }
> - if (in->i_state & I_NEW)
> + if (inode_state_read_once(in) & I_NEW)
> unlock_new_inode(in);
>
> if (d_really_is_negative(dn)) {
> --
> 2.34.1
>
--
Jan Kara <jack@...e.com>
SUSE Labs, CR
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