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Commit d7a077d7 authored by Nicolai Stange's avatar Nicolai Stange Committed by Raghavendra Rao Ananta
Browse files

debugfs: debugfs_real_fops(): drop __must_hold sparse annotation 



Currently, debugfs_real_fops() is annotated with a
__must_hold(&debugfs_srcu) sparse annotation.

With the conversion of the SRCU based protection of users against
concurrent file removals to a per-file refcount based scheme, this becomes
wrong.

Drop this annotation.

Change-Id: I261ad90f4af2fe28379be1256ec86a8b41f1dd08
Signed-off-by: default avatarNicolai Stange <nicstange@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Git-commit: 055ab8e3e3d52e005d2047b14ce63551b3a8b8b5
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


Signed-off-by: default avatarRaghavendra Rao Ananta <rananta@codeaurora.org>
parent 9d70524d

fs/debugfs/file.c

+1 −5
Original line number Diff line number Diff line
@@ -98,13 +98,9 @@ EXPORT_SYMBOL_GPL(debugfs_use_file_finish); 
#define F_DENTRY(filp) ((filp)->f_path.dentry)



const struct file_operations *debugfs_real_fops(const struct file *filp)

	__must_hold(&debugfs_srcu)

{

	struct debugfs_fsdata *fsd = F_DENTRY(filp)->d_fsdata;

	/*

	 * Neither the pointer to the struct file_operations, nor its

	 * contents ever change -- srcu_dereference() is not needed here.

	 */



	return fsd->real_fops;

}

EXPORT_SYMBOL_GPL(debugfs_real_fops);

include/linux/debugfs.h

+1 −2
Original line number Diff line number Diff line
@@ -95,8 +95,7 @@ int debugfs_use_file_start(const struct dentry *dentry, int *srcu_idx) 


void debugfs_use_file_finish(int srcu_idx) __releases(&debugfs_srcu);



const struct file_operations *debugfs_real_fops(const struct file *filp)

	__must_hold(&debugfs_srcu);

const struct file_operations *debugfs_real_fops(const struct file *filp);



int debugfs_file_get(struct dentry *dentry);

void debugfs_file_put(struct dentry *dentry);