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libzpool/abd_os: iovec-based scatter abd

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This is intended to be a simple userspace scatter abd based on struct
iovec. It's not very sophisticated as-is, but sets a base for something
much more interesting.

Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #16253
This commit is contained in:
Rob Norris
2024-04-21 16:37:06 +10:00
committed by Brian Behlendorf
parent 5b9e695392
commit b69bebb535
2 changed files with 174 additions and 301 deletions
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lib/libzpool/include/sys/abd_os.h
+2 -2
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@@ -32,8 +32,8 @@ extern "C" {
struct abd_scatter {
uint_t abd_offset;
uint_t abd_nents;
struct scatterlist *abd_sgl;
uint_t abd_iovcnt;
struct iovec abd_iov[1]; /* actually variable-length */
};
struct abd_linear {