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Merge branch 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

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Pull aio iopriority support from Al Viro:
 "The rest of aio stuff for this cycle - Adam's aio ioprio series"

* 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fs: aio ioprio use ioprio_check_cap ret val
  fs: aio ioprio add explicit block layer dependence
  fs: iomap dio set bio prio from kiocb prio
  fs: blkdev set bio prio from kiocb prio
  fs: Add aio iopriority support
  fs: Convert kiocb rw_hint from enum to u16
  block: add ioprio_check_cap function
This commit is contained in:
Linus Torvalds
2018-06-08 10:00:20 -07:00
parent 4189b863ba 9a6d9a62e0
commit 4a189982e2
8 changed files with 63 additions and 9 deletions
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16
include/linux/fs.h
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@@ -36,6 +36,7 @@
#include <linux/delayed_call.h>
#include <linux/uuid.h>
#include <linux/errseq.h>
#include <linux/ioprio.h>
#include <asm/byteorder.h>
#include <uapi/linux/fs.h>
@@ -299,7 +300,8 @@ struct kiocb {
void (*ki_complete)(struct kiocb *iocb, long ret, long ret2);
void *private;
int ki_flags;
enum rw_hint ki_hint;
u16 ki_hint;
u16 ki_ioprio; /* See linux/ioprio.h */
} __randomize_layout;
static inline bool is_sync_kiocb(struct kiocb *kiocb)
@@ -1934,12 +1936,22 @@ static inline enum rw_hint file_write_hint(struct file *file)
static inline int iocb_flags(struct file *file);
static inline u16 ki_hint_validate(enum rw_hint hint)
{
typeof(((struct kiocb *)0)->ki_hint) max_hint = -1;
if (hint <= max_hint)
return hint;
return 0;
}
static inline void init_sync_kiocb(struct kiocb *kiocb, struct file *filp)
{
*kiocb = (struct kiocb) {
.ki_filp = filp,
.ki_flags = iocb_flags(filp),
.ki_hint = file_write_hint(filp),
.ki_hint = ki_hint_validate(file_write_hint(filp)),
.ki_ioprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_NONE, 0),
};
}