diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2021-03-01 20:37:10 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2021-03-08 10:19:35 -0500 |
| commit | 6e3e2c4362e41a2f18e3f7a5ad81bd2f49a47b85 (patch) | |
| tree | ef51a46d8ebbfa4300e6fa4f1c20b171b351bf13 /include/linux/fs.h | |
| parent | a38fd8748464831584a19438cbb3082b5a2dab15 (diff) | |
new helper: inode_wrong_type()
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>
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 ec8f3ddf4a6a..9e0d76a41229 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2884,6 +2884,11 @@ 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)) |