diff options
Diffstat (limited to 'man/io_uring_prep_openat2.3')
| -rw-r--r-- | man/io_uring_prep_openat2.3 | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/man/io_uring_prep_openat2.3 b/man/io_uring_prep_openat2.3 index 4898e30..96682d8 100644 --- a/man/io_uring_prep_openat2.3 +++ b/man/io_uring_prep_openat2.3 @@ -67,6 +67,17 @@ Note that old kernels don't check the SQE .I file_index field, which is not a problem for liburing helpers, but users of the raw io_uring interface need to zero SQEs to avoid unexpected behavior. +If +.B IORING_FILE_INDEX_ALLOC +is used as the +.I file_index +for a direct open, then io_uring will allocate a free direct descriptor in +the existing table. The allocated descriptor is returned in the CQE +.I res +field just like it would be for a non-direct open request. If no more entries +are available in the direct descriptor table, +.B -ENFILE +is returned instead. This function prepares an async .BR openat2 (2) |