From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r@public.gmane.org
Subject: [Bug 75431] New: posix_fadvise(2): wrong param name?
Date: Sat, 03 May 2014 19:04:16 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=75431
Bug ID: 75431
Summary: posix_fadvise(2): wrong param name?
Product: Documentation
Version: unspecified
Hardware: All
OS: Linux
Status: NEW
Severity: low
Priority: P1
Component: man-pages
Assignee: documentation_man-pages-ztI5WcYan/vQLgFONoPN62D2FQJk+8+b@public.gmane.org
Reporter: pub08-knl-Hke7B/fnggLYtjvyW6yDsg@public.gmane.org
Regression: No
In posix_fadvise(2), under "Architecture-specific variants", it says:
[Due to register-alignment issues,]
... the call signature of posix_fadvise() shown in
the SYNOPSIS would force a register to be wasted as padding between
the fd and len arguments.
Should it say "offset" instead of "len" in the last line of that quoted bit?
Rationale: the SYNOPSIS shows a call signature of:
int posix_fadvise(int fd, off_t offset, off_t len, int advice);
in which:
- fd and len aren't adjacent
- it's between a shorter value followed by a longer one that I'd expect
alignment padding to be needed, and the only pair where that occurs is (fd,
offset)
CAVEAT: I'm not familiar with either the syscall or the specific alignment
issues in question, so my guess about this is just that -- a deduced guess, NOT
specific knowledge. So don't make the change on my say-so; please verify it
first!
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