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xarray: Destroy an XArray

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This function frees all the internal memory allocated to the xarray
and reinitialises it to be empty.

Signed-off-by: Matthew Wilcox <willy@infradead.org>
This commit is contained in:
Matthew Wilcox
2017-11-17 08:16:34 -05:00
parent 80a0a1a9a3
commit 687149fca1
3 changed files with 63 additions and 0 deletions
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include/linux/xarray.h
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@@ -286,6 +286,7 @@ void *xa_find_after(struct xarray *xa, unsigned long *index,
unsigned long max, xa_mark_t) __attribute__((nonnull(2)));
unsigned int xa_extract(struct xarray *, void **dst, unsigned long start,
unsigned long max, unsigned int n, xa_mark_t);
void xa_destroy(struct xarray *);
/**
* xa_init() - Initialise an empty XArray.