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init: add an init_mknod helper

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Add a simple helper to mknod with a kernel space file name and switch
the early init code over to it.  Remove the now unused ksys_mknod.

Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig
2020-07-22 11:41:20 +02:00
parent 83ff98c3e9
commit 5fee64fcde
8 changed files with 30 additions and 16 deletions
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1
include/linux/init_syscalls.h
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@@ -8,6 +8,7 @@ int __init init_chroot(const char *filename);
int __init init_chown(const char *filename, uid_t user, gid_t group, int flags);
int __init init_chmod(const char *filename, umode_t mode);
int __init init_eaccess(const char *filename);
int __init init_mknod(const char *filename, umode_t mode, unsigned int dev);
int __init init_link(const char *oldname, const char *newname);
int __init init_symlink(const char *oldname, const char *newname);
int __init init_unlink(const char *pathname);

9
include/linux/syscalls.h
View File

@@ -1270,15 +1270,6 @@ int compat_ksys_ipc(u32 call, int first, int second,
* The following kernel syscall equivalents are just wrappers to fs-internal
* functions. Therefore, provide stubs to be inlined at the callsites.
*/
extern long do_mknodat(int dfd, const char __user *filename, umode_t mode,
unsigned int dev);
static inline long ksys_mknod(const char __user *filename, umode_t mode,
unsigned int dev)
{
return do_mknodat(AT_FDCWD, filename, mode, dev);
}
extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
gid_t group, int flag);