summaryrefslogtreecommitdiffstats
path: root/fs/9p/v9fs_vfs.h
diff options
context:
space:
mode:
authorSang-Heon Jeon <ekffu200098@gmail.com>2026-08-24 01:18:14 +0900
committerJulia Lawall <Julia.Lawall@inria.fr>2026-08-23 22:12:11 +0200
commit2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c (patch)
treedcc4da1d99f17541c5590ac63c77da4bf372a4ab /fs/9p/v9fs_vfs.h
downloadlinux-stable-2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c.tar.gz
linux-stable-2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c.zip
coccinelle: alloc_cast: drop removed allocatorsgrafted
- pci_alloc_consistent() and pci_zalloc_consistent() were removed by commit 7968778914e5 ("PCI: Remove the deprecated "pci-dma-compat.h" API") - kmem_alloc() was removed by commit f078d4ea8276 ("xfs: convert kmem_alloc() to kmalloc()") - kmem_zalloc() was removed by commit 10634530f7ba ("xfs: convert kmem_zalloc() to kzalloc()") - kmem_zone_alloc() and kmem_zone_zalloc() were removed by commit bae633a4a283 ("xfs: remove xfs_zone_{alloc,zalloc} helpers") So drop them from the rules. No functional change. Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com> Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Diffstat (limited to 'fs/9p/v9fs_vfs.h')
-rw-r--r--fs/9p/v9fs_vfs.h93
1 files changed, 93 insertions, 0 deletions
diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h
new file mode 100644
index 000000000..1856d91f8
--- /dev/null
+++ b/fs/9p/v9fs_vfs.h
@@ -0,0 +1,93 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * V9FS VFS extensions.
+ *
+ * Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com>
+ * Copyright (C) 2002 by Ron Minnich <rminnich@lanl.gov>
+ */
+#ifndef FS_9P_V9FS_VFS_H
+#define FS_9P_V9FS_VFS_H
+
+/* plan9 semantics are that created files are implicitly opened.
+ * But linux semantics are that you call create, then open.
+ * the plan9 approach is superior as it provides an atomic
+ * open.
+ * we track the create fid here. When the file is opened, if fidopen is
+ * non-zero, we use the fid and can skip some steps.
+ * there may be a better way to do this, but I don't know it.
+ * one BAD way is to clunk the fid on create, then open it again:
+ * you lose the atomicity of file open
+ */
+
+/* special case:
+ * unlink calls remove, which is an implicit clunk. So we have to track
+ * that kind of thing so that we don't try to clunk a dead fid.
+ */
+#define P9_LOCK_TIMEOUT (30*HZ)
+
+/* flags for v9fs_stat2inode() & v9fs_stat2inode_dotl() */
+#define V9FS_STAT2INODE_KEEP_ISIZE 1
+
+/**
+ * struct v9fs_dentry - v9fs specific dentry data
+ * @head: List of fid associated with this dentry
+ * @expire_time: Lookup cache expiration time for negative dentries
+ * @rcu: used by kfree_rcu to schedule clean up job
+ */
+struct v9fs_dentry {
+ struct hlist_head head;
+ u64 expire_time;
+ struct rcu_head rcu;
+};
+#define to_v9fs_dentry(d) ((struct v9fs_dentry *)((d)->d_fsdata))
+
+extern struct file_system_type v9fs_fs_type;
+extern const struct address_space_operations v9fs_addr_operations;
+extern const struct file_operations v9fs_file_operations;
+extern const struct file_operations v9fs_file_operations_dotl;
+extern const struct file_operations v9fs_dir_operations;
+extern const struct file_operations v9fs_dir_operations_dotl;
+extern const struct dentry_operations v9fs_dentry_operations;
+extern void v9fs_ndentry_refresh_timeout(struct dentry *dentry);
+extern void v9fs_dentry_fid_remove(struct dentry *dentry);
+extern const struct dentry_operations v9fs_cached_dentry_operations;
+extern struct kmem_cache *v9fs_inode_cache;
+
+struct inode *v9fs_alloc_inode(struct super_block *sb);
+void v9fs_free_inode(struct inode *inode);
+void v9fs_set_netfs_context(struct inode *inode);
+int v9fs_init_inode(struct v9fs_session_info *v9ses,
+ struct inode *inode, umode_t mode, dev_t rdev);
+void v9fs_evict_inode(struct inode *inode);
+#if (BITS_PER_LONG == 32)
+#define QID2INO(q) ((ino_t) (((q)->path+2) ^ (((q)->path) >> 32)))
+#else
+#define QID2INO(q) ((ino_t) ((q)->path+2))
+#endif
+
+void v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode,
+ struct super_block *sb, unsigned int flags);
+void v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode,
+ unsigned int flags);
+int v9fs_dir_release(struct inode *inode, struct file *filp);
+int v9fs_file_open(struct inode *inode, struct file *file);
+int v9fs_uflags2omode(int uflags, int extended);
+
+void v9fs_blank_wstat(struct p9_wstat *wstat);
+int v9fs_vfs_setattr_dotl(struct mnt_idmap *idmap,
+ struct dentry *dentry, struct iattr *iattr);
+int v9fs_file_fsync_dotl(struct file *filp, loff_t start, loff_t end,
+ int datasync);
+int v9fs_refresh_inode(struct p9_fid *fid, struct inode *inode);
+int v9fs_refresh_inode_dotl(struct p9_fid *fid, struct inode *inode);
+static inline void v9fs_invalidate_inode_attr(struct inode *inode)
+{
+ struct v9fs_inode *v9inode;
+
+ v9inode = V9FS_I(inode);
+ v9inode->cache_validity |= V9FS_INO_INVALID_ATTR;
+}
+
+int v9fs_open_to_dotl_flags(int flags);
+
+#endif