The patch titled aio: partial write should not return error code has been added to the -mm tree. Its filename is aio-partial-write-should-not-return-error-code.patch *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: aio: partial write should not return error code From: Rusty Russell <rusty@xxxxxxxxxxxxxxx> When an AIO write gets an error after writing some data (eg. ENOSPC), it should return the amount written already, not the error. Just like write() is supposed to. This was found by the libaio test suite. Signed-off-by: Rusty Russell <rusty@xxxxxxxxxxxxxxx> Acked-By: Zach Brown <zach.brown@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/aio.c | 7 +++++++ 1 file changed, 7 insertions(+) diff -puN fs/aio.c~aio-partial-write-should-not-return-error-code fs/aio.c --- a/fs/aio.c~aio-partial-write-should-not-return-error-code +++ a/fs/aio.c @@ -1347,6 +1347,13 @@ static ssize_t aio_rw_vect_retry(struct if ((ret == 0) || (iocb->ki_left == 0)) ret = iocb->ki_nbytes - iocb->ki_left; + /* If we managed to write some out we return that, rather than + * the eventual error. */ + if (opcode == IOCB_CMD_PWRITEV + && ret < 0 && ret != -EIOCBQUEUED && ret != -EIOCBRETRY + && iocb->ki_nbytes - iocb->ki_left) + ret = iocb->ki_nbytes - iocb->ki_left; + return ret; } _ Patches currently in -mm which might be from rusty@xxxxxxxxxxxxxxx are modules-de-mutex-more-symbol-lookup-paths-in-the-module-code.patch git-kbuild.patch git-kvm.patch git-libata-all.patch git-scsi-misc.patch kallsyms-should-prefer-non-weak-symbols.patch virtio_net-remove-double-ether_setup.patch modules-handle-symbols-that-have-a-zero-value.patch modules-include-sectionsh-to-avoid-defining-linker-variables.patch modules-fold-percpu_modcopy-into-modulec-and-get-rid-of-the-macro-from-hell.patch modules-make-module_address_lookup-safe.patch fixup-container_of-usage.patch aio-partial-write-should-not-return-error-code.patch aio-negative-offset-should-return-einval.patch reiser4.patch - To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html