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file: Rename fcheck lookup_fd_rcu

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Also remove the confusing comment about checking if a fd exists.  I
could not find one instance in the entire kernel that still matches
the description or the reason for the name fcheck.

The need for better names became apparent in the last round of
discussion of this set of changes[1].

[1] https://lkml.kernel.org/r/CAHk-=wj8BQbgJFLa+J0e=iT-1qpmCRTbPAJ8gd6MJQ=kbRPqyQ@mail.gmail.com
Link: https://lkml.kernel.org/r/20201120231441.29911-10-ebiederm@xmission.com
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2020-11-20 17:14:27 -06:00
parent f36c294327
commit 460b4f812a
4 changed files with 9 additions and 9 deletions
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8
include/linux/fdtable.h
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@ -105,10 +105,10 @@ static inline struct file *files_lookup_fd_rcu(struct files_struct *files, unsig
return files_lookup_fd_raw(files, fd);
}
/*
* Check whether the specified fd has an open file.
*/
#define fcheck(fd) files_lookup_fd_rcu(current->files, fd)
static inline struct file *lookup_fd_rcu(unsigned int fd)
{
return files_lookup_fd_rcu(current->files, fd);
}
struct task_struct;