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Remove unnecessary (char *) casts [checksum]

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Remove some (char *) casts related to uses of the pg_checksum_page()
function.  These casts are useless, because everything involved
already has the right type.  Moreover, these casts actually silently
discarded a const qualifier.  The declaration of a higher-level
function needs to be adjusted to fix that.

Reviewed-by: Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>
Discussion: https://www.postgresql.org/message-id/flat/fd1fcedb-3492-4fc8-9e3e-74b97f2db6c7%40eisentraut.org
This commit is contained in:
Peter Eisentraut 2025-02-12 08:59:48 +01:00
parent 827b4060a8
commit 1b5841d461
3 changed files with 5 additions and 5 deletions
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2
contrib/pageinspect/rawpage.c
View File

@ -357,7 +357,7 @@ page_checksum_internal(PG_FUNCTION_ARGS, enum pageinspect_version ext_version)
if (PageIsNew(page))
PG_RETURN_NULL();
PG_RETURN_INT16(pg_checksum_page((char *) page, blkno));
PG_RETURN_INT16(pg_checksum_page(page, blkno));
}
Datum

6
src/backend/storage/page/bufpage.c
View File

@ -85,7 +85,7 @@ PageInit(Page page, Size pageSize, Size specialSize)
* to pgstat.
*/
bool
PageIsVerifiedExtended(const PageData *page, BlockNumber blkno, int flags)
PageIsVerifiedExtended(PageData *page, BlockNumber blkno, int flags)
{
const PageHeaderData *p = (const PageHeaderData *) page;
size_t *pagebytes;
@ -100,7 +100,7 @@ PageIsVerifiedExtended(const PageData *page, BlockNumber blkno, int flags)
{
if (DataChecksumsEnabled())
{
checksum = pg_checksum_page((char *) page, blkno);
checksum = pg_checksum_page(page, blkno);
if (checksum != p->pd_checksum)
checksum_failure = true;
@ -1534,5 +1534,5 @@ PageSetChecksumInplace(Page page, BlockNumber blkno)
if (PageIsNew(page) || !DataChecksumsEnabled())
return;
((PageHeader) page)->pd_checksum = pg_checksum_page((char *) page, blkno);
((PageHeader) page)->pd_checksum = pg_checksum_page(page, blkno);
}

2
src/include/storage/bufpage.h
View File

@ -489,7 +489,7 @@ StaticAssertDecl(BLCKSZ == ((BLCKSZ / sizeof(size_t)) * sizeof(size_t)),
"BLCKSZ has to be a multiple of sizeof(size_t)");
extern void PageInit(Page page, Size pageSize, Size specialSize);
extern bool PageIsVerifiedExtended(const PageData *page, BlockNumber blkno, int flags);
extern bool PageIsVerifiedExtended(PageData *page, BlockNumber blkno, int flags);
extern OffsetNumber PageAddItemExtended(Page page, Item item, Size size,
OffsetNumber offsetNumber, int flags);
extern Page PageGetTempPage(const PageData *page);