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Remove dsm_resize() and dsm_remap().

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These interfaces were never used in core, didn't handle failure of
posix_fallocate() correctly and weren't supported on all platforms.
We agreed to remove them in 12.

Author: Thomas Munro
Reported-by: Andres Freund
Discussion: https://postgr.es/m/CAA4eK1%2B%3DyAFUvpFoHXFi_gm8YqmXN-TtkFH%2BVYjvDLS6-SFq-Q%40mail.gmail.com
This commit is contained in:
Thomas Munro
2018-11-06 16:11:12 +13:00
parent b0a1ff8a6a
commit 3c60d0fa23
4 changed files with 12 additions and 174 deletions
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4
src/include/storage/dsm_impl.h
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@@ -59,7 +59,6 @@ typedef enum
DSM_OP_CREATE,
DSM_OP_ATTACH,
DSM_OP_DETACH,
DSM_OP_RESIZE,
DSM_OP_DESTROY
} dsm_op;
@@ -68,9 +67,6 @@ extern bool dsm_impl_op(dsm_op op, dsm_handle handle, Size request_size,
void **impl_private, void **mapped_address, Size *mapped_size,
int elevel);
/* Some implementations cannot resize segments. Can this one? */
extern bool dsm_impl_can_resize(void);
/* Implementation-dependent actions required to keep segment until shutdown. */
extern void dsm_impl_pin_segment(dsm_handle handle, void *impl_private,
void **impl_private_pm_handle);