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-rw-r--r--fs/inode.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/inode.c b/fs/inode.c
index 6f6250c08ce6..27ee1af50d02 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -1250,10 +1250,13 @@ void file_update_time(struct file *file)
struct inode *inode = file->f_path.dentry->d_inode;
struct timespec now;
int sync_it = 0;
+ int err;
if (IS_NOCMTIME(inode))
return;
- if (IS_RDONLY(inode))
+
+ err = mnt_want_write(file->f_path.mnt);
+ if (err)
return;
now = current_fs_time(inode->i_sb);
@@ -1274,6 +1277,7 @@ void file_update_time(struct file *file)
if (sync_it)
mark_inode_dirty_sync(inode);
+ mnt_drop_write(file->f_path.mnt);
}
EXPORT_SYMBOL(file_update_time);