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| author | Robert Watson <rwatson@FreeBSD.org> | 2003-01-18 03:25:40 +0000 |
|---|---|---|
| committer | Robert Watson <rwatson@FreeBSD.org> | 2003-01-18 03:25:40 +0000 |
| commit | eef9bd4c3fd6bd23eb6591cbc0ac97caf6158ab2 (patch) | |
| tree | f88f778ac5b82b3f5f01d6d352a372cfd8035fc9 /share/man/man9/malloc.9 | |
| parent | da5e9a5bd6b87442ac00fcb57a128d4ac222730c (diff) | |
| download | src-eef9bd4c3fd6bd23eb6591cbc0ac97caf6158ab2.tar.gz src-eef9bd4c3fd6bd23eb6591cbc0ac97caf6158ab2.zip | |
Caution programmers not to confuse M_DONTWAIT with M_NOWAIT. They
are not the same.
Suggested by: Hiten Pandya <hiten@unixdaemons.com>
Notes
Notes:
svn path=/head/; revision=109459
Diffstat (limited to 'share/man/man9/malloc.9')
| -rw-r--r-- | share/man/man9/malloc.9 | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/share/man/man9/malloc.9 b/share/man/man9/malloc.9 index ff07220e1bcc..601389731719 100644 --- a/share/man/man9/malloc.9 +++ b/share/man/man9/malloc.9 @@ -159,6 +159,17 @@ is defined to be 0, meaning that blocking operation is the default. Also note that .Dv M_NOWAIT is required when running in an interrupt context. +.Pp +Programmers should be careful not to confuse +.Dv M_NOWAIT , +the +.Fn malloc +flag, with +.Dv M_DONTWAIT , +an +.Xr mbuf 9 +allocation flag, which is not a valid argument to +.Fn malloc . .It Dv M_WAITOK Indicates that it is Ok to wait for resources. It is unconveniently defined as 0 so care should be taken never to compare against this value |