diff options
| author | Alex Elder <elder@inktank.com> | 2013-02-15 22:10:17 -0600 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2013-05-01 21:14:23 -0700 |
| commit | 07c09b725543ff2958c11522d583f90f7fdba735 (patch) | |
| tree | e59ccdb0798fb56c4d2d34bbe1952b1de9cfdf6c | |
| parent | 3ff5f385b1449a07372d51fb89ca94dbfb6a3be2 (diff) | |
| download | op-kernel-dev-07c09b725543ff2958c11522d583f90f7fdba735.zip op-kernel-dev-07c09b725543ff2958c11522d583f90f7fdba735.tar.gz | |
libceph: make ceph_msg->bio_seg be unsigned
The bio_seg field is used by the ceph messenger in iterating through
a bio. It should never have a negative value, so make it an
unsigned. (I contemplated making it unsigned short to match the
struct bio definition, but it offered no benefit.)
Change variables used to hold bio_seg values to all be unsigned as
well. Change two variable names in init_bio_iter() to match the
convention used everywhere else.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| -rw-r--r-- | include/linux/ceph/messenger.h | 2 | ||||
| -rw-r--r-- | net/ceph/messenger.c | 16 |
2 files changed, 10 insertions, 8 deletions
diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h index 60903e0..8297288 100644 --- a/include/linux/ceph/messenger.h +++ b/include/linux/ceph/messenger.h @@ -86,7 +86,7 @@ struct ceph_msg { #ifdef CONFIG_BLOCK struct bio *bio; /* instead of pages/pagelist */ struct bio *bio_iter; /* bio iterator */ - int bio_seg; /* current bio segment */ + unsigned int bio_seg; /* current bio segment */ #endif /* CONFIG_BLOCK */ struct ceph_pagelist *trail; /* the trailing part of the data */ bool front_is_vmalloc; diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index 2c0669f..c06f940 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -697,18 +697,19 @@ static void con_out_kvec_add(struct ceph_connection *con, } #ifdef CONFIG_BLOCK -static void init_bio_iter(struct bio *bio, struct bio **iter, int *seg) +static void init_bio_iter(struct bio *bio, struct bio **bio_iter, + unsigned int *bio_seg) { if (!bio) { - *iter = NULL; - *seg = 0; + *bio_iter = NULL; + *bio_seg = 0; return; } - *iter = bio; - *seg = bio->bi_idx; + *bio_iter = bio; + *bio_seg = (unsigned int) bio->bi_idx; } -static void iter_bio_next(struct bio **bio_iter, int *seg) +static void iter_bio_next(struct bio **bio_iter, unsigned int *seg) { if (*bio_iter == NULL) return; @@ -1818,7 +1819,8 @@ static int read_partial_message_pages(struct ceph_connection *con, #ifdef CONFIG_BLOCK static int read_partial_message_bio(struct ceph_connection *con, - struct bio **bio_iter, int *bio_seg, + struct bio **bio_iter, + unsigned int *bio_seg, unsigned int data_len, bool do_datacrc) { struct bio_vec *bv = bio_iovec_idx(*bio_iter, *bio_seg); |
