diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 1998-03-17 22:05:47 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 1998-03-17 22:05:47 +0000 |
| commit | 27cfca1ec98e91261b1a5355d10a8996464b63af (patch) | |
| tree | 8e895a53e372fa682b4c0a585b9377d67ed70d0e /include/linux/blkdev.h | |
| parent | 6a76fb7214c477ccf6582bd79c5b4ccc4f9c41b1 (diff) | |
Look Ma' what I found on my harddisk ...
o New faster syscalls for 2.1.x, too
o Upgrade to 2.1.89.
Don't try to run this. It's flaky as hell. But feel free to debug ...
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 1e7005e6c..f2d143359 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -38,6 +38,9 @@ typedef struct request ** (queue_proc) (kdev_t dev); struct blk_dev_struct { request_fn_proc *request_fn; + /* + * queue_proc has to be atomic + */ queue_proc *queue; void *data; struct request *current_request; @@ -72,4 +75,15 @@ extern int * max_readahead[MAX_BLKDEV]; extern int * max_sectors[MAX_BLKDEV]; +#define MAX_SECTORS 244 /* 254 ? */ + +#define PageAlignSize(size) (((size) + PAGE_SIZE -1) & PAGE_MASK) +#if 0 /* small readahead */ +#define MAX_READAHEAD PageAlignSize(4096*7) +#define MIN_READAHEAD PageAlignSize(4096*2) +#else /* large readahead */ +#define MAX_READAHEAD PageAlignSize(4096*18) +#define MIN_READAHEAD PageAlignSize(4096*3) +#endif + #endif |