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| author | Elliott Hughes <enh@google.com> | 2018-08-26 13:14:33 +0200 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2018-08-26 13:14:33 +0200 |
| commit | 3ee0a7f07ed1bd607e598bc4477af0dea5db4084 (patch) | |
| tree | fff44a3b97cfd8fdeb5d7d2a3eebc9c51112c624 | |
| parent | dc9b6c92852bca1541ed13d730b8653d2b8a806d (diff) | |
| download | man-pages-3ee0a7f07ed1bd607e598bc4477af0dea5db4084.tar.gz | |
mmap.2: Explicitly state that the fd can be closed
I regularly see excessive fd usage bugs (or even leaks) caused by
people who think they need to keep the fd open as long as the
mapping exists.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
| -rw-r--r-- | man2/mmap.2 | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/man2/mmap.2 b/man2/mmap.2 index 3d3d1882f9..7ca39ff5d6 100644 --- a/man2/mmap.2 +++ b/man2/mmap.2 @@ -87,6 +87,8 @@ in the file (or other object) referred to by the file descriptor .I offset must be a multiple of the page size as returned by .IR sysconf(_SC_PAGE_SIZE) . +The file descriptor can be closed immediately without invalidating the +mapping. .PP The .I prot |