1 files changed, 3 insertions, 1 deletions

diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index d9262f74f94e..eb53c632f856 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -30,7 +30,7 @@ static const struct address_space_operations sysfs_aops = {
 
 static struct backing_dev_info sysfs_backing_dev_info = {
         .ra_pages       = 0,    /* No readahead */
-        .capabilities   = BDI_CAP_NO_ACCT_DIRTY | BDI_CAP_NO_WRITEBACK,
+        .capabilities   = BDI_CAP_NO_ACCT_AND_WRITEBACK,
 };
 
 static const struct inode_operations sysfs_inode_operations ={
@@ -59,6 +59,8 @@ int sysfs_setattr(struct dentry * dentry, struct iattr * iattr)
         if (error)
                 return error;
 
+        iattr->ia_valid &= ~ATTR_SIZE; /* ignore size changes */
+
         error = inode_setattr(inode, iattr);
         if (error)
                 return error;