1) Fix WARN_ON_ONCE when marking buffer dirty it's possible that a writeback for the super block buffer head is triggered after setting the buffer uptodate on a buffer write_io_error.
If however there's an error while writing the buffer head then the buffer is cleared from being uptodate. If the buffer uptodate is not set while calling mark_buffer_dirty, it throws a WARN_ON_ONCE. This patch fixes it by locking the buffer while marking the buffer uptodate and then marking it dirty while holding the buffer head lock. Pranay Kr. Srivastava (5): Fix WARN_ON_ONCE when marking buffer dirty fs/ext4/super.c | 30 +++++----- 1 files changed, 16 insertions(+), 14 deletions(-) -- 1.9.1
