Explicitly specify the mm to pass to shmem_insert_page() when
the pkram_stream is initialized rather than use the mm of the
current thread. This will allow for multiple kernel threads to
target the same mm when inserting pages in parallel.
Signed-off-by: Anthony Yznaga <anthony.yznaga@xxxxxxxxxx>
---
mm/shmem_pkram.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/mm/shmem_pkram.c b/mm/shmem_pkram.c
index 904b1b861ce5..8682b0c002c0 100644
--- a/mm/shmem_pkram.c
+++ b/mm/shmem_pkram.c
@@ -225,7 +225,7 @@ int shmem_save_pkram(struct super_block *sb)
return err;
}
-static int load_file_content(struct pkram_stream *ps, struct address_space *mapping)
+static int load_file_content(struct pkram_stream *ps, struct address_space *mapping, struct mm_struct *mm)
{
PKRAM_ACCESS(pa, ps, pages);
unsigned long index;
@@ -237,7 +237,7 @@ static int load_file_content(struct pkram_stream *ps, struct address_space *mapp
if (!page)
break;
- err = shmem_insert_page(current->mm, mapping->host, index, page);
+ err = shmem_insert_page(mm, mapping->host, index, page);
put_page(page);
cond_resched();
} while (!err);
@@ -291,7 +291,7 @@ static int load_file(struct dentry *parent, struct pkram_stream *ps,
inode->i_ctime = ns_to_timespec64(hdr.ctime);
i_size_write(inode, hdr.size);
- err = load_file_content(ps, inode->i_mapping);
+ err = load_file_content(ps, inode->i_mapping, current->mm);
out_unlock:
inode_unlock(d_inode(parent));
out:
--
1.8.3.1
