diff options
| author | Jens Axboe <axboe@suse.de> | 2006-08-10 03:01:02 -0400 |
|---|---|---|
| committer | Jens Axboe <axboe@nelson.home.kernel.dk> | 2006-09-30 14:29:42 -0400 |
| commit | 5404bc7a87b9949cf61e0174b21f80e73239ab25 (patch) | |
| tree | 230c799aef2dcad8c64da55114508d28d2b30183 /include/linux/fs.h | |
| parent | da20a20f3b5c175648fa797c899dd577e4dacb51 (diff) | |
[PATCH] Allow file systems to differentiate between data and meta reads
We can use this information for making more intelligent priority
decisions, and it will also be useful for blktrace.
Signed-off-by: Jens Axboe <axboe@suse.de>
Diffstat (limited to 'include/linux/fs.h')
| -rw-r--r-- | include/linux/fs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 9306f63bf77e..d68c37af4dfb 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h | |||
| @@ -80,6 +80,7 @@ extern int dir_notify_enable; | |||
| 80 | #define READA 2 /* read-ahead - don't block if no resources */ | 80 | #define READA 2 /* read-ahead - don't block if no resources */ |
| 81 | #define SWRITE 3 /* for ll_rw_block() - wait for buffer lock */ | 81 | #define SWRITE 3 /* for ll_rw_block() - wait for buffer lock */ |
| 82 | #define READ_SYNC (READ | (1 << BIO_RW_SYNC)) | 82 | #define READ_SYNC (READ | (1 << BIO_RW_SYNC)) |
| 83 | #define READ_META (READ | (1 << BIO_RW_META)) | ||
| 83 | #define WRITE_SYNC (WRITE | (1 << BIO_RW_SYNC)) | 84 | #define WRITE_SYNC (WRITE | (1 << BIO_RW_SYNC)) |
| 84 | #define WRITE_BARRIER ((1 << BIO_RW) | (1 << BIO_RW_BARRIER)) | 85 | #define WRITE_BARRIER ((1 << BIO_RW) | (1 << BIO_RW_BARRIER)) |
| 85 | 86 | ||