diff options
Diffstat (limited to 'include/sys/abd.h')
| -rw-r--r-- | include/sys/abd.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/include/sys/abd.h b/include/sys/abd.h index 3d9fdbf10..b781be4da 100644 --- a/include/sys/abd.h +++ b/include/sys/abd.h @@ -20,7 +20,7 @@ */ /* * Copyright (c) 2014 by Chunwei Chen. All rights reserved. - * Copyright (c) 2016 by Delphix. All rights reserved. + * Copyright (c) 2016, 2019 by Delphix. All rights reserved. */ #ifndef _ABD_H @@ -44,7 +44,8 @@ typedef enum abd_flags { ABD_FLAG_OWNER = 1 << 1, /* does it own its data buffers? */ ABD_FLAG_META = 1 << 2, /* does this represent FS metadata? */ ABD_FLAG_MULTI_ZONE = 1 << 3, /* pages split over memory zones */ - ABD_FLAG_MULTI_CHUNK = 1 << 4 /* pages split over multiple chunks */ + ABD_FLAG_MULTI_CHUNK = 1 << 4, /* pages split over multiple chunks */ + ABD_FLAG_LINEAR_PAGE = 1 << 5, /* linear but allocd from page */ } abd_flags_t; typedef struct abd { @@ -60,6 +61,7 @@ typedef struct abd { } abd_scatter; struct abd_linear { void *abd_buf; + struct scatterlist *abd_sgl; /* for LINEAR_PAGE */ } abd_linear; } abd_u; } abd_t; @@ -75,6 +77,13 @@ abd_is_linear(abd_t *abd) return ((abd->abd_flags & ABD_FLAG_LINEAR) != 0 ? B_TRUE : B_FALSE); } +static inline boolean_t +abd_is_linear_page(abd_t *abd) +{ + return ((abd->abd_flags & ABD_FLAG_LINEAR_PAGE) != 0 ? + B_TRUE : B_FALSE); +} + /* * Allocations and deallocations */ |