fsnotify: simplify arguments passing to fsnotify_parent()
Instead of passing both dentry and path and having to figure out which one to use, pass data/data_type to simplify the code. Link: https://lore.kernel.org/r/20200319151022.31456-6-amir73il@gmail.com Signed-off-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
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@ -143,15 +143,13 @@ void __fsnotify_update_child_dentry_flags(struct inode *inode)
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}
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/* Notify this dentry's parent about a child's events. */
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int __fsnotify_parent(const struct path *path, struct dentry *dentry, __u32 mask)
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int fsnotify_parent(struct dentry *dentry, __u32 mask, const void *data,
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int data_type)
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{
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struct dentry *parent;
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struct inode *p_inode;
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int ret = 0;
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if (!dentry)
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dentry = path->dentry;
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if (!(dentry->d_flags & DCACHE_FSNOTIFY_PARENT_WATCHED))
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return 0;
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@ -168,12 +166,7 @@ int __fsnotify_parent(const struct path *path, struct dentry *dentry, __u32 mask
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mask |= FS_EVENT_ON_CHILD;
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take_dentry_name_snapshot(&name, dentry);
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if (path)
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ret = fsnotify(p_inode, mask, path, FSNOTIFY_EVENT_PATH,
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&name.name, 0);
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else
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ret = fsnotify(p_inode, mask, dentry->d_inode, FSNOTIFY_EVENT_INODE,
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&name.name, 0);
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ret = fsnotify(p_inode, mask, data, data_type, &name.name, 0);
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release_dentry_name_snapshot(&name);
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}
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@ -181,7 +174,7 @@ int __fsnotify_parent(const struct path *path, struct dentry *dentry, __u32 mask
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return ret;
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}
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EXPORT_SYMBOL_GPL(__fsnotify_parent);
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EXPORT_SYMBOL_GPL(fsnotify_parent);
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static int send_to_group(struct inode *to_tell,
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__u32 mask, const void *data,
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@ -38,16 +38,6 @@ static inline void fsnotify_dirent(struct inode *dir, struct dentry *dentry,
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fsnotify_name(dir, mask, d_inode(dentry), &dentry->d_name, 0);
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}
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/* Notify this dentry's parent about a child's events. */
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static inline int fsnotify_parent(const struct path *path,
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struct dentry *dentry, __u32 mask)
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{
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if (!dentry)
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dentry = path->dentry;
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return __fsnotify_parent(path, dentry, mask);
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}
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/*
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* Simple wrappers to consolidate calls fsnotify_parent()/fsnotify() when
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* an event is on a file/dentry.
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@ -59,7 +49,7 @@ static inline void fsnotify_dentry(struct dentry *dentry, __u32 mask)
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if (S_ISDIR(inode->i_mode))
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mask |= FS_ISDIR;
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fsnotify_parent(NULL, dentry, mask);
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fsnotify_parent(dentry, mask, inode, FSNOTIFY_EVENT_INODE);
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fsnotify(inode, mask, inode, FSNOTIFY_EVENT_INODE, NULL, 0);
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}
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@ -75,7 +65,7 @@ static inline int fsnotify_file(struct file *file, __u32 mask)
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if (S_ISDIR(inode->i_mode))
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mask |= FS_ISDIR;
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ret = fsnotify_parent(path, NULL, mask);
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ret = fsnotify_parent(path->dentry, mask, path, FSNOTIFY_EVENT_PATH);
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if (ret)
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return ret;
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@ -376,9 +376,10 @@ struct fsnotify_mark {
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/* called from the vfs helpers */
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/* main fsnotify call to send events */
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extern int fsnotify(struct inode *to_tell, __u32 mask, const void *data, int data_is,
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const struct qstr *name, u32 cookie);
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extern int __fsnotify_parent(const struct path *path, struct dentry *dentry, __u32 mask);
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extern int fsnotify(struct inode *to_tell, __u32 mask, const void *data,
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int data_type, const struct qstr *name, u32 cookie);
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extern int fsnotify_parent(struct dentry *dentry, __u32 mask, const void *data,
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int data_type);
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extern void __fsnotify_inode_delete(struct inode *inode);
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extern void __fsnotify_vfsmount_delete(struct vfsmount *mnt);
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extern void fsnotify_sb_delete(struct super_block *sb);
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@ -533,13 +534,14 @@ static inline void fsnotify_init_event(struct fsnotify_event *event,
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#else
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static inline int fsnotify(struct inode *to_tell, __u32 mask, const void *data, int data_is,
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const struct qstr *name, u32 cookie)
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static inline int fsnotify(struct inode *to_tell, __u32 mask, const void *data,
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int data_type, const struct qstr *name, u32 cookie)
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{
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return 0;
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}
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static inline int __fsnotify_parent(const struct path *path, struct dentry *dentry, __u32 mask)
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static inline int fsnotify_parent(struct dentry *dentry, __u32 mask,
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const void *data, int data_type)
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{
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return 0;
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}
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