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| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2007-02-13 15:21:52 +0100 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-02-16 16:40:56 +0100 |
| commit | 930e99bd1320d78c7d8866595e81b8fc7dc8739b (patch) | |
| tree | e079f35c0aa2b58cf41675c66b7cfa96e6b068f6 /include/scsi | |
| parent | [SCSI] sgiwd93: interfacing to wd33c93 (diff) | |
| download | linux-930e99bd1320d78c7d8866595e81b8fc7dc8739b.tar.xz linux-930e99bd1320d78c7d8866595e81b8fc7dc8739b.zip | |
[SCSI] tgt: fix the user/kernel ring buffer interface
This patches fixes two bugs in the scsi target infrastructure's
user/kernel interface.
- It wrongly assumes that the ring buffer size of the interface (64KB)
is larger than or equal to the system page size. This patch sets the
ring buffer size to PAGE_SIZE if the system page size is larger.
- It uses PAGE_SIZE in the header file exported to userspace. This
patch removes it.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/scsi_tgt_if.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/include/scsi/scsi_tgt_if.h b/include/scsi/scsi_tgt_if.h index 46d5e70d7215..07d6e77ae895 100644 --- a/include/scsi/scsi_tgt_if.h +++ b/include/scsi/scsi_tgt_if.h @@ -83,8 +83,5 @@ struct tgt_event { } __attribute__ ((aligned (sizeof(uint64_t)))); #define TGT_RING_SIZE (1UL << 16) -#define TGT_RING_PAGES (TGT_RING_SIZE >> PAGE_SHIFT) -#define TGT_EVENT_PER_PAGE (PAGE_SIZE / sizeof(struct tgt_event)) -#define TGT_MAX_EVENTS (TGT_EVENT_PER_PAGE * TGT_RING_PAGES) #endif |