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| author |   Dave Chinner <david@fromorbit.com> | 2016-11-30 12:49:38 +1100 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2016-11-30 12:49:38 +1100 |
| commit | e3df41f97847f60c3808b39dee1adcb72b3d4646 (patch) | |
| tree | e146ce6480868f74bb1fdf31ac522ae1aece648d /include/linux/iomap.h | |
| parent | dax: Introduce IOMAP_FAULT flag (diff) | |
| parent | xfs: pass post-eof speculative prealloc blocks to bmapi (diff) | |
| download | linux-dev-e3df41f97847f60c3808b39dee1adcb72b3d4646.tar.xz linux-dev-e3df41f97847f60c3808b39dee1adcb72b3d4646.zip | |
Merge branch 'xfs-4.10-misc-fixes-2' into iomap-4.10-directio
Diffstat (limited to 'include/linux/iomap.h')
| -rw-r--r-- | include/linux/iomap.h | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/include/linux/iomap.h b/include/linux/iomap.h index b9e7b8ec8c1d..f185156de74d 100644 --- a/include/linux/iomap.h +++ b/include/linux/iomap.h @@ -19,11 +19,15 @@ struct vm_fault; #define IOMAP_UNWRITTEN 0x04 /* blocks allocated @blkno in unwritten state */ /* - * Flags for iomap mappings: + * Flags for all iomap mappings: */ -#define IOMAP_F_MERGED 0x01 /* contains multiple blocks/extents */ -#define IOMAP_F_SHARED 0x02 /* block shared with another file */ -#define IOMAP_F_NEW 0x04 /* blocks have been newly allocated */ +#define IOMAP_F_NEW 0x01 /* blocks have been newly allocated */ + +/* + * Flags that only need to be reported for IOMAP_REPORT requests: + */ +#define IOMAP_F_MERGED 0x10 /* contains multiple blocks/extents */ +#define IOMAP_F_SHARED 0x20 /* block shared with another file */ /* * Magic value for blkno: @@ -42,8 +46,9 @@ struct iomap { /* * Flags for iomap_begin / iomap_end. No flag implies a read. */ -#define IOMAP_WRITE (1 << 0) -#define IOMAP_ZERO (1 << 1) +#define IOMAP_WRITE (1 << 0) /* writing, must allocate blocks */ +#define IOMAP_ZERO (1 << 1) /* zeroing operation, may skip holes */ +#define IOMAP_REPORT (1 << 2) /* report extent status, e.g. FIEMAP */ #define IOMAP_FAULT (1 << 3) /* mapping for page fault */ struct iomap_ops { |