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readv.2: Minor tweaks to Christoph's patch 

Reviewed-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2017-11-14 08:16:05 +01:00
parent fe20da96cf
commit 954136a176
1 changed files with 5 additions and 8 deletions
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@ -234,8 +234,10 @@ and its effect applies only to the data range written by the system call.
.\" commit e864f39569f4092c2b2bc72c773b6e486c7e3bd9
.TP
.BR RWF_NOWAIT " (since Linux 4.14)"
.\" commit 3239d834847627b6634a4139cf1dc58f6f137a46
.\" commit 91f9943e1c7b6638f27312d03fe71fcc67b23571
Do not wait for data which is not immediately available.
If this flag is specified the
If this flag is specified, the
.BR preadv2 ()
system call will return instantly if it would have to read data from
the backing storage or wait for a lock.
@ -244,13 +246,8 @@ If no bytes were read, it will return -1 and set
.IR errno
to
.BR EAGAIN .
This flag is meaningful only for
.BR preadv2 ()
at the moment.
.\" commit 3239d834847627b6634a4139cf1dc58f6f137a46
.\" commit 91f9943e1c7b6638f27312d03fe71fcc67b23571
Currently, this flag is meaningful only for
.BR preadv2 ().
.SH RETURN VALUE
On success,
.BR readv (),