Hi Rohit, > I was going through the submit_bh() code in fs/buffer.c > (http://lxr.linux.no/source/fs/buffer.c#L2642). I was not > able to trace the function definition of the call to > buffer_ordered() (http://lxr.linux.no/source/fs/buffer.c#L2651) > and clear_buffer_write_io_error() (http://lxr.linux.no/source/fs/buffer.c#L2659). The answer lies in include/linux/buffer_head.h: #define BUFFER_FNS(bit, name) \ static inline void set_buffer_##name(struct buffer_head *bh) \ { \ set_bit(BH_##bit, &(bh)->b_state); \ } \ static inline void clear_buffer_##name(struct buffer_head *bh) \ { \ clear_bit(BH_##bit, &(bh)->b_state); \ } \ static inline int buffer_##name(const struct buffer_head *bh) \ { \ return test_bit(BH_##bit, &(bh)->b_state); \ } The above macro helps in defining 3 functions (set_buffer_ordered() / clear_buffer_ordered() / buffer_ordered()) in one go by a single line: BUFFER_FNS(Ordered, ordered) Similarly for BUFFER_FNS(Write_EIO, write_io_error). Thanks, Rajat -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
