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| author | Gu Zheng <guz.fnst@cn.fujitsu.com> | 2014-07-01 10:36:47 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-07-01 10:36:47 -0600 |
| commit | cbcd1054a1fd2aa980fc11ff28e436fc4aaa2d54 (patch) | |
| tree | ba7302637859ce48e703a4bd2c3ce7c7d2a27175 /include/linux | |
| parent | add703fda981b9719d37f371498b9f129acbd997 (diff) | |
| download | linux-cbcd1054a1fd2aa980fc11ff28e436fc4aaa2d54.tar.gz linux-cbcd1054a1fd2aa980fc11ff28e436fc4aaa2d54.tar.bz2 linux-cbcd1054a1fd2aa980fc11ff28e436fc4aaa2d54.zip | |
bio-integrity: add "bip_max_vcnt" into struct bio_integrity_payload
Commit 08778795 ("block: Fix nr_vecs for inline integrity vectors") from
Martin introduces the function bip_integrity_vecs(get the useful vectors)
to fix the issue about nr_vecs for inline integrity vectors that reported
by David Milburn.
But it seems that bip_integrity_vecs() will return the wrong number if the
bio is not based on any bio_set for some reason(bio->bi_pool == NULL),
because in that case, the bip_inline_vecs[0] is malloced directly. So
here we add the bip_max_vcnt to record the count of vector slots, and
cleanup the function bip_integrity_vecs().
Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Kent Overstreet <kmo@daterainc.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/bio.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/bio.h b/include/linux/bio.h index d2633ee099d9..b39e5000ff58 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -308,6 +308,7 @@ struct bio_integrity_payload { unsigned short bip_slab; /* slab the bip came from */ unsigned short bip_vcnt; /* # of integrity bio_vecs */ + unsigned short bip_max_vcnt; /* integrity bio_vec slots */ unsigned bip_owns_buf:1; /* should free bip_buf */ struct work_struct bip_work; /* I/O completion */ |