diff options
| author | Christoph Hellwig <hch@lst.de> | 2016-03-03 16:04:01 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-03-04 12:20:10 -0500 |
| commit | 97be7ebe53915af504fb491fb99f064c7cf3cb09 (patch) | |
| tree | bf2995e974c538c38d5db5c4fbf9486cce478d81 /include/linux/fs.h | |
| parent | 4babf2c5efb79be778d45ebe95d9c9b3c880c83b (diff) | |
| download | lwn-97be7ebe53915af504fb491fb99f064c7cf3cb09.tar.gz lwn-97be7ebe53915af504fb491fb99f064c7cf3cb09.zip | |
vfs: add the RWF_HIPRI flag for preadv2/pwritev2
This adds a flag that tells the file system that this is a high priority
request for which it's worth to poll the hardware. The flag is purely
advisory and can be ignored if not supported.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Stephen Bates <stephen.bates@pmcs.com>
Tested-by: Stephen Bates <stephen.bates@pmcs.com>
Acked-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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 6ec87964644f..337de88ff50f 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -320,6 +320,7 @@ struct writeback_control; #define IOCB_EVENTFD (1 << 0) #define IOCB_APPEND (1 << 1) #define IOCB_DIRECT (1 << 2) +#define IOCB_HIPRI (1 << 3) struct kiocb { struct file *ki_filp; |