59 lines
1.7 KiB
Diff
59 lines
1.7 KiB
Diff
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From 268ab52e6c604555f81807307a845ffe654c3aa9 Mon Sep 17 00:00:00 2001
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From: Miklos Szeredi <mszeredi@suse.cz>
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Date: Thu, 27 Jun 2013 16:39:49 +0200
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Subject: [PATCH 3/9] vfs: export __inode_permission() to modules
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We need to be able to check inode permissions (but not filesystem implied
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permissions) for stackable filesystems. Expose this interface for overlayfs.
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Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
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---
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fs/internal.h | 5 -----
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fs/namei.c | 1 +
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include/linux/fs.h | 1 +
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3 files changed, 2 insertions(+), 5 deletions(-)
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diff --git a/fs/internal.h b/fs/internal.h
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index eaa75f7..6c9ec69 100644
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--- a/fs/internal.h
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+++ b/fs/internal.h
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@@ -42,11 +42,6 @@ static inline int __sync_blockdev(struct block_device *bdev, int wait)
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extern void __init chrdev_init(void);
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/*
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- * namei.c
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- */
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-extern int __inode_permission(struct inode *, int);
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-
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-/*
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* namespace.c
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*/
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extern int copy_mount_options(const void __user *, unsigned long *);
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diff --git a/fs/namei.c b/fs/namei.c
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index c06e521..df058f5 100644
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--- a/fs/namei.c
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+++ b/fs/namei.c
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@@ -402,6 +402,7 @@ int __inode_permission(struct inode *inode, int mask)
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return security_inode_permission(inode, mask);
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}
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+EXPORT_SYMBOL(__inode_permission);
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/**
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* sb_permission - Check superblock-level permissions
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diff --git a/include/linux/fs.h b/include/linux/fs.h
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index 80690b3..8a6752b 100644
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--- a/include/linux/fs.h
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+++ b/include/linux/fs.h
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@@ -2210,6 +2210,7 @@ extern sector_t bmap(struct inode *, sector_t);
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#endif
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extern int notify_change(struct dentry *, struct iattr *);
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extern int inode_permission(struct inode *, int);
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+extern int __inode_permission(struct inode *, int);
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extern int generic_permission(struct inode *, int);
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static inline bool execute_ok(struct inode *inode)
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--
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1.8.3.2
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