diff options
| author |   Nicolai Stange <nicstange@gmail.com> | 2017-10-31 00:15:52 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-07 20:25:02 +0100 |
| commit | c9afbec27089cd6b4e621b639f41c7fc726c3bf1 (patch) | |
| tree | bb66d582f6668101cdbca5e6a3592f2398271443 /include/linux/debugfs.h | |
| parent | IB/hfi1: convert to debugfs_file_get() and -put() (diff) | |
| download | linux-dev-c9afbec27089cd6b4e621b639f41c7fc726c3bf1.tar.xz linux-dev-c9afbec27089cd6b4e621b639f41c7fc726c3bf1.zip | |
debugfs: purge obsolete SRCU based removal protection
Purge the SRCU based file removal race protection in favour of the new,
refcount based debugfs_file_get()/debugfs_file_put() API.
Fixes: 49d200deaa68 ("debugfs: prevent access to removed files' private data")
Signed-off-by: Nicolai Stange <nicstange@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/debugfs.h')
| -rw-r--r-- | include/linux/debugfs.h | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h index c5eda259b9d6..9f821a43bb0d 100644 --- a/include/linux/debugfs.h +++ b/include/linux/debugfs.h @@ -23,7 +23,6 @@ struct device; struct file_operations; -struct srcu_struct; struct debugfs_blob_wrapper { void *data; @@ -43,8 +42,6 @@ struct debugfs_regset32 { extern struct dentry *arch_debugfs_dir; -extern struct srcu_struct debugfs_srcu; - #define DEFINE_DEBUGFS_ATTRIBUTE(__fops, __get, __set, __fmt) \ static int __fops ## _open(struct inode *inode, struct file *file) \ { \ @@ -90,11 +87,6 @@ struct dentry *debugfs_create_automount(const char *name, void debugfs_remove(struct dentry *dentry); void debugfs_remove_recursive(struct dentry *dentry); -int debugfs_use_file_start(const struct dentry *dentry, int *srcu_idx) - __acquires(&debugfs_srcu); - -void debugfs_use_file_finish(int srcu_idx) __releases(&debugfs_srcu); - const struct file_operations *debugfs_real_fops(const struct file *filp); int debugfs_file_get(struct dentry *dentry); @@ -227,17 +219,6 @@ static inline void debugfs_remove(struct dentry *dentry) static inline void debugfs_remove_recursive(struct dentry *dentry) { } -static inline int debugfs_use_file_start(const struct dentry *dentry, - int *srcu_idx) - __acquires(&debugfs_srcu) -{ - return 0; -} - -static inline void debugfs_use_file_finish(int srcu_idx) - __releases(&debugfs_srcu) -{ } - static inline int debugfs_file_get(struct dentry *dentry) { return 0; |