On 19-07-01 14:57:22, Chaitanya Kulkarni wrote: > The existing code in the bio_check_ro() relies on the op_is_write(). > op_is_write() checks for the last bit in the bio_op(). Now that we have > multiple REQ_OP_XXX with last bit set to 1 such as, (from blk_types.h): > > /* write sectors to the device */ > REQ_OP_WRITE = 1, > /* flush the volatile write cache */ > REQ_OP_DISCARD = 3, > /* securely erase sectors */ > REQ_OP_SECURE_ERASE = 5, > /* write the same sector many times */ > REQ_OP_WRITE_SAME = 7, > /* write the zero filled sector many times */ > REQ_OP_WRITE_ZEROES = 9, > > it is hard to understand which bio op failed in the bio_check_ro(). > > Modify the error message in bio_check_ro() to print correct REQ_OP_XXX > with the help of blk_op_str(). > > Signed-off-by: Chaitanya Kulkarni <[email protected]> > --- > block/blk-core.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/block/blk-core.c b/block/blk-core.c > index 5d1fc8e17dd1..47c8b9c48a57 100644 > --- a/block/blk-core.c > +++ b/block/blk-core.c > @@ -786,9 +786,9 @@ static inline bool bio_check_ro(struct bio *bio, struct > hd_struct *part) > return false; > > WARN_ONCE(1, > - "generic_make_request: Trying to write " > - "to read-only block-device %s (partno %d)\n", > - bio_devname(bio, b), part->partno); > + "generic_make_request: Trying op %s on the " > + "read-only block-device %s (partno %d)\n", > + blk_op_str(op), bio_devname(bio, b), part->partno);
Maybe "s/Trying op %s on/Tyring op %s to" just like the previous one? Not a native speaker, though ;) I think it would be better to see the log which holds the exact request operation type in a string. Reviewed-by: Minwoo Im <[email protected]>
