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init: add an init_chdir helper

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

Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig
2020-07-22 11:25:21 +02:00
parent 20cce026c3
commit db63f1e315
7 changed files with 24 additions and 13 deletions
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include/linux/syscalls.h
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@@ -1238,7 +1238,6 @@ asmlinkage long sys_ni_syscall(void);
int ksys_chroot(const char __user *filename);
ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
int ksys_chdir(const char __user *filename);
int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
void ksys_sync(void);