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Diffstat (limited to 'fs/ext4/file.c')
-rw-r--r--fs/ext4/file.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index d663d3d7c81c..ff3f6107b0ba 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -57,6 +57,9 @@ static ssize_t ext4_dax_read_iter(struct kiocb *iocb, struct iov_iter *to)
static ssize_t ext4_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
{
+ if (unlikely(ext4_forced_shutdown(EXT4_SB(file_inode(iocb->ki_filp)->i_sb))))
+ return -EIO;
+
if (!iov_iter_count(to))
return 0; /* skip atime */
@@ -213,6 +216,9 @@ ext4_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
int overwrite = 0;
ssize_t ret;
+ if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb))))
+ return -EIO;
+
#ifdef CONFIG_FS_DAX
if (IS_DAX(inode))
return ext4_dax_write_iter(iocb, from);
@@ -348,6 +354,9 @@ static int ext4_file_mmap(struct file *file, struct vm_area_struct *vma)
{
struct inode *inode = file->f_mapping->host;
+ if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb))))
+ return -EIO;
+
if (ext4_encrypted_inode(inode)) {
int err = fscrypt_get_encryption_info(inode);
if (err)
@@ -375,6 +384,9 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
char buf[64], *cp;
int ret;
+ if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb))))
+ return -EIO;
+
if (unlikely(!(sbi->s_mount_flags & EXT4_MF_MNTDIR_SAMPLED) &&
!(sb->s_flags & MS_RDONLY))) {
sbi->s_mount_flags |= EXT4_MF_MNTDIR_SAMPLED;