diff options
| author | Ed Maste <emaste@FreeBSD.org> | 2026-07-21 18:10:00 +0000 |
|---|---|---|
| committer | Ed Maste <emaste@FreeBSD.org> | 2026-07-21 18:27:47 +0000 |
| commit | caabdb3aefdc45cae90203210034086801fa9005 (patch) | |
| tree | e44fc92b061799aaac88b557bb098c56985504dc | |
| parent | c185935b0d52f991d7e27fbac277ea8c9bb456a1 (diff) | |
contigmalloc.9: Note that M_WAITOK may still return NULL
Reviewed by: markj, bapt
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D58382
| -rw-r--r-- | share/man/man9/contigmalloc.9 | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/share/man/man9/contigmalloc.9 b/share/man/man9/contigmalloc.9 index 2e5d55ae8ba1..a9ebaf100eb9 100644 --- a/share/man/man9/contigmalloc.9 +++ b/share/man/man9/contigmalloc.9 @@ -23,7 +23,7 @@ .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE .\" POSSIBILITY OF SUCH DAMAGE. .\" -.Dd July 26, 2024 +.Dd July 21, 2026 .Dt CONTIGMALLOC 9 .Os .Sh NAME @@ -124,6 +124,15 @@ function returns a kernel virtual address if allocation succeeds, or .Dv NULL otherwise. +Note that in contrast with +.Xr malloc 9 , +.Fn contigmalloc +may return +.Dv NULL +even if +.Dv M_WAITOK +is specified, if no physically congiguous range is available that meets the +specified constraints. .Sh EXAMPLES .Bd -literal void *p; |