diff --git a/fs/buffer.c b/fs/buffer.c index b4dcb34c9635ae61b747bb9d4816477a49a8d90a..a15575c0b9eeab681c008bd85d9ab023a81b36ce 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -2988,6 +2988,11 @@ int submit_bh(int rw, struct buffer_head * bh) /* Take care of bh's that straddle the end of the device */ guard_bh_eod(rw, bio, bh); + if (buffer_meta(bh)) + rw |= REQ_META; + if (buffer_prio(bh)) + rw |= REQ_PRIO; + bio_get(bio); submit_bio(rw, bio); diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h index 5afc4f94d110f67590e8a7924c09b006f1e711c8..33c0f8103fe4ac0786d83074c3ac2722a9169090 100644 --- a/include/linux/buffer_head.h +++ b/include/linux/buffer_head.h @@ -34,6 +34,8 @@ enum bh_state_bits { BH_Write_EIO, /* I/O error on write */ BH_Unwritten, /* Buffer is allocated on disk but not written */ BH_Quiet, /* Buffer Error Prinks to be quiet */ + BH_Meta, /* Buffer contains metadata */ + BH_Prio, /* Buffer should be submitted with REQ_PRIO */ BH_PrivateStart,/* not a state bit, but the first bit available * for private allocation by other entities @@ -124,6 +126,8 @@ BUFFER_FNS(Delay, delay) BUFFER_FNS(Boundary, boundary) BUFFER_FNS(Write_EIO, write_io_error) BUFFER_FNS(Unwritten, unwritten) +BUFFER_FNS(Meta, meta) +BUFFER_FNS(Prio, prio) #define bh_offset(bh) ((unsigned long)(bh)->b_data & ~PAGE_MASK)