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fs/aio: raise the default AIO_LISTIO_MAX so LTP keeps passing

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The new CONFIG_FS_AIO_LISTIO_MAX option defaults to 10 and lio_listio()
now rejects nent > {AIO_LISTIO_MAX} with EINVAL.  The LTP release pinned
by apps/testing/ltp (20230516) submits 256 requests in a single batch from
conformance/interfaces/lio_listio/2-1.c, so ltp_interfaces_lio_listio_2_1
now fails on every configuration that enables CONFIG_TESTING_LTP
(sim:citest, rv-virt:citest, sim:posix_test):

  lio_listio/2-1.c Error at lio_listio() 22: Invalid argument

The EINVAL check itself is required by POSIX, so keep it and raise the
default instead; the limit no longer costs memory because the requests are
linked through the aiocb's own lio_link.

While here, keep _POSIX_AIO_LISTIO_MAX at its POSIX-mandated value of 2
and let AIO_LISTIO_MAX carry the configurable implementation limit.

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This commit is contained in:
Xiang Xiao
2026-09-14 17:12:49 -03:00
committed by Alan C. Assis
parent 74d2c2d119
commit d5d134bc79
1 changed files with 1 additions and 1 deletions
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fs/aio/Kconfig
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@@ -13,7 +13,7 @@ config FS_AIO
config FS_AIO_LISTIO_MAX
int "Maximum number of AIO operations in listio"
default 10
default 256
---help---
This option sets the maximum number of asynchronous I/O (AIO) operations
that can be submitted in a single call to lio_listio().