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| author | Jens Axboe <axboe@suse.de> | 2006-08-10 09:01:02 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@nelson.home.kernel.dk> | 2006-09-30 20:29:42 +0200 |
| commit | 5404bc7a87b9949cf61e0174b21f80e73239ab25 (patch) | |
| tree | 230c799aef2dcad8c64da55114508d28d2b30183 /include/linux/fs.h | |
| parent | da20a20f3b5c175648fa797c899dd577e4dacb51 (diff) | |
| download | linux-5404bc7a87b9949cf61e0174b21f80e73239ab25.tar.gz | |
[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 9306f63bf77e8..d68c37af4dfbd 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -80,6 +80,7 @@ extern int dir_notify_enable; #define READA 2 /* read-ahead - don't block if no resources */ #define SWRITE 3 /* for ll_rw_block() - wait for buffer lock */ #define READ_SYNC (READ | (1 << BIO_RW_SYNC)) +#define READ_META (READ | (1 << BIO_RW_META)) #define WRITE_SYNC (WRITE | (1 << BIO_RW_SYNC)) #define WRITE_BARRIER ((1 << BIO_RW) | (1 << BIO_RW_BARRIER)) |