[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH XEN v5 21/23] tools/libs/foreignmemory: Mention restrictions on fork in docs.
Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx> Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx> --- tools/libs/foreignmemory/include/xenforeignmemory.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/tools/libs/foreignmemory/include/xenforeignmemory.h b/tools/libs/foreignmemory/include/xenforeignmemory.h index 99ec883..3f52417 100644 --- a/tools/libs/foreignmemory/include/xenforeignmemory.h +++ b/tools/libs/foreignmemory/include/xenforeignmemory.h @@ -32,7 +32,12 @@ typedef struct xentoollog_logger xentoollog_logger; typedef struct xenforeignmemory_handle xenforeignmemory_handle; /* - * Return a handle onto the hypercall driver. Logs errors. + * Return a handle onto the foreign memory mapping driver. Logs errors. + * + * Note: After fork a child process must not use any opened handle + * inherited from their parent. Any existing mappings should be + * assumed to become invalid. Therefore children must open a new + * handle and make new mappings if necessary. */ xenforeignmemory_handle *xenforeignmemory_open(xentoollog_logger *logger, unsigned open_flags); -- 2.1.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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