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Diffstat (limited to 'fs/aio.c')
-rw-r--r--fs/aio.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/aio.c b/fs/aio.c
index 155f84253..fb8e45b88 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -496,7 +496,12 @@ static int aio_setup_ring(struct kioctx *ctx)
ctx->mmap_size = nr_pages * PAGE_SIZE;
pr_debug("attempting mmap of %lu bytes\n", ctx->mmap_size);
- down_write(&mm->mmap_sem);
+ if (down_write_killable(&mm->mmap_sem)) {
+ ctx->mmap_size = 0;
+ aio_free_ring(ctx);
+ return -EINTR;
+ }
+
ctx->mmap_base = do_mmap_pgoff(ctx->aio_ring_file, 0, ctx->mmap_size,
PROT_READ | PROT_WRITE,
MAP_SHARED, 0, &unused);
@@ -1447,8 +1452,6 @@ rw_common:
return ret;
}
- len = ret;
-
if (rw == WRITE)
file_start_write(file);