diff options
Diffstat (limited to 'fs/aio.c')
| -rw-r--r-- | fs/aio.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/aio.c b/fs/aio.c index 8f01275262997..b5d69f28d8b1c 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -373,6 +373,14 @@ static int aio_migratepage(struct address_space *mapping, struct page *new, pgoff_t idx; int rc; + /* + * We cannot support the _NO_COPY case here, because copy needs to + * happen under the ctx->completion_lock. That does not work with the + * migration workflow of MIGRATE_SYNC_NO_COPY. + */ + if (mode == MIGRATE_SYNC_NO_COPY) + return -EINVAL; + rc = 0; /* mapping->private_lock here protects against the kioctx teardown. */ |