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coredump: call do_unlinkat directly instead of sys_unlink

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And stop messing with the address limit.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Christoph Hellwig 2017-11-04 13:44:46 +03:00 committed by Al Viro
parent da2f1362c8
commit 96271654f5
1 changed files with 1 additions and 6 deletions
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7
fs/coredump.c
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@ -679,16 +679,11 @@ void do_coredump(const siginfo_t *siginfo)
* privs and don't want to unlink another user's coredump.
*/
if (!need_suid_safe) {
mm_segment_t old_fs;
old_fs = get_fs();
set_fs(KERNEL_DS);
/*
* If it doesn't exist, that's fine. If there's some
* other problem, we'll catch it at the filp_open().
*/
(void) sys_unlink((const char __user *)cn.corename);
set_fs(old_fs);
do_unlinkat(AT_FDCWD, getname_kernel(cn.corename));
}
/*