Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\select.c Create Date:2022-07-28 20:07:06
Last Modify:2020-03-18 10:25:38 Copyright©Brick
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Name:do_compat_select

Proto:static int do_compat_select(int n, compat_ulong_t __user *inp, compat_ulong_t __user *outp, compat_ulong_t __user *exp, struct old_timeval32 __user *tvp)

Type:int

Parameter:

TypeParameterName
intn
compat_ulong_t __user *inp
compat_ulong_t __user *outp
compat_ulong_t __user *exp
struct old_timeval32 __user *tvp
1249  struct timespec64 end_time, * to = NULL
1253  If tvp Then
1254  If copy_from_user( & tv, tvp, size of tv ) Then Return -EFAULT
1257  to = end_time
1258  If poll_select_set_timeout - helper function to setup the timeout value*@to: pointer to timespec64 variable for the final timeout*@sec: seconds (from user space)*@nsec: nanoseconds (from user space)* Note, we do not use a timespec for the user space value Then Return -EINVAL
1264  ret = We can actually return ERESTARTSYS instead of EINTR, but I'd* like to be certain this leads to no problems. So I return* EINTR just for safety.* Update: ERESTARTSYS breaks at least the xview clock binary, so
1265  Return poll_select_finish( & end_time, tvp, PT_OLD_TIMEVAL, ret)
Caller
NameDescribe
COMPAT_SYSCALL_DEFINE5
COMPAT_SYSCALL_DEFINE1