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mmap.2: srcfix: rewrap source lines 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2018-04-12 09:31:30 +02:00
parent 228d889fc7
commit 007d7833b0
1 changed files with 10 additions and 8 deletions
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18
man2/mmap.2
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@ -276,16 +276,18 @@ with respect to the
.I addr
enforcement, but different in that
.B MAP_FIXED_NOREPLACE
never clobbers a pre-existing
mapped range. If the requested range would collide with an existing
mapping, then this call fails with
never clobbers a pre-existing mapped range.
If the requested range would collide with an existing mapping,
then this call fails with
.B EEXIST.
This flag can therefore be used as a way to atomically (with respect to other
threads) attempt to map an address range: one thread will succeed; all others
will report failure. Please note that older kernels which do not recognize this
This flag can therefore be used as a way to atomically
(with respect to other threads) attempt to map an address range:
one thread will succeed; all others will report failure.
Please note that older kernels which do not recognize this
flag will typically (upon detecting a collision with a pre-existing mapping)
fall back to a "non-MAP_FIXED" type of behavior: they will return an address that
is different than the requested one. Therefore, backward-compatible software
fall back to a "non-MAP_FIXED" type of behavior:
they will return an address that is different than the requested one.
Therefore, backward-compatible software
should check the returned address against the requested address.
.TP
.B MAP_GROWSDOWN