diff options
| -rw-r--r-- | fs/aio.c | 14 |
1 files changed, 6 insertions, 8 deletions
@@ -1841,15 +1841,15 @@ SYSCALL_DEFINE3(io_submit, aio_context_t, ctx_id, long, nr, if (unlikely(nr < 0)) return -EINVAL; - if (unlikely(nr > LONG_MAX/sizeof(*iocbpp))) - nr = LONG_MAX/sizeof(*iocbpp); - ctx = lookup_ioctx(ctx_id); if (unlikely(!ctx)) { pr_debug("EINVAL: invalid context id\n"); return -EINVAL; } + if (nr > ctx->nr_events) + nr = ctx->nr_events; + blk_start_plug(&plug); for (i = 0; i < nr; i++) { struct iocb __user *user_iocb; @@ -1870,8 +1870,6 @@ SYSCALL_DEFINE3(io_submit, aio_context_t, ctx_id, long, nr, } #ifdef CONFIG_COMPAT -#define MAX_AIO_SUBMITS (PAGE_SIZE/sizeof(struct iocb *)) - COMPAT_SYSCALL_DEFINE3(io_submit, compat_aio_context_t, ctx_id, int, nr, compat_uptr_t __user *, iocbpp) { @@ -1883,15 +1881,15 @@ COMPAT_SYSCALL_DEFINE3(io_submit, compat_aio_context_t, ctx_id, if (unlikely(nr < 0)) return -EINVAL; - if (nr > MAX_AIO_SUBMITS) - nr = MAX_AIO_SUBMITS; - ctx = lookup_ioctx(ctx_id); if (unlikely(!ctx)) { pr_debug("EINVAL: invalid context id\n"); return -EINVAL; } + if (nr > ctx->nr_events) + nr = ctx->nr_events; + blk_start_plug(&plug); for (i = 0; i < nr; i++) { compat_uptr_t user_iocb; |