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| author | Al Viro <viro@zeniv.linux.org.uk> | 2021-03-02 04:37:10 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-09-08 09:49:01 +0300 |
| commit | 40ba433a85dbbf5b2e58f2ac6b161ce37ac872fc (patch) | |
| tree | 841eff9e26bce82bf4111c4c4f0ca748660fc7f6 /include/linux/fs.h | |
| parent | ded9137fcf0d729dbe65aa98c411352f40b22970 (diff) | |
| download | linux-40ba433a85dbbf5b2e58f2ac6b161ce37ac872fc.tar.xz | |
new helper: inode_wrong_type()
commit 6e3e2c4362e41a2f18e3f7a5ad81bd2f49a47b85 upstream.
inode_wrong_type(inode, mode) returns true if setting inode->i_mode
to given value would've changed the inode type. We have enough of
those checks open-coded to make a helper worthwhile.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/fs.h')
| -rw-r--r-- | include/linux/fs.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 8bde32cf9711..43bb6a51e42d 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2768,6 +2768,11 @@ static inline bool execute_ok(struct inode *inode) return (inode->i_mode & S_IXUGO) || S_ISDIR(inode->i_mode); } +static inline bool inode_wrong_type(const struct inode *inode, umode_t mode) +{ + return (inode->i_mode ^ mode) & S_IFMT; +} + static inline void file_start_write(struct file *file) { if (!S_ISREG(file_inode(file)->i_mode)) |