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init: add an init_utimes helper

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Add a simple helper to set timestamps with a kernel space file name and
switch the early init code over to it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig 2020-07-21 16:05:31 +02:00
parent 716308a533
commit 235e57935b
3 changed files with 15 additions and 2 deletions
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13
fs/init.c
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@ -238,3 +238,16 @@ int __init init_rmdir(const char *pathname)
{
return do_rmdir(AT_FDCWD, getname_kernel(pathname));
}
int __init init_utimes(char *filename, struct timespec64 *ts)
{
struct path path;
int error;
error = kern_path(filename, 0, &path);
if (error)
return error;
error = vfs_utimes(&path, ts);
path_put(&path);
return error;
}

1
include/linux/init_syscalls.h
View File

@ -15,3 +15,4 @@ int __init init_symlink(const char *oldname, const char *newname);
int __init init_unlink(const char *pathname);
int __init init_mkdir(const char *pathname, umode_t mode);
int __init init_rmdir(const char *pathname);
int __init init_utimes(char *filename, struct timespec64 *ts);

3
init/initramfs.c
View File

@ -111,8 +111,7 @@ static long __init do_utime(char *filename, time64_t mtime)
t[0].tv_nsec = 0;
t[1].tv_sec = mtime;
t[1].tv_nsec = 0;
return do_utimes(AT_FDCWD, filename, t, AT_SYMLINK_NOFOLLOW);
return init_utimes(filename, t);
}
static __initdata LIST_HEAD(dir_list);