Fix checkpointer shared memory allocation
Use Min(NBuffers, MAX_CHECKPOINT_REQUESTS) instead of NBuffers in
CheckpointerShmemSize() to match the actual array size limit set in
CheckpointerShmemInit(). This prevents wasting shared memory when
NBuffers > MAX_CHECKPOINT_REQUESTS. Also, fix the comment.
Reported-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/1439188.1754506714%40sss.pgh.pa.us
Author: Xuneng Zhou <xunengzhou@gmail.com>
Co-authored-by: Alexander Korotkov <aekorotkov@gmail.com>
Branch
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REL_15_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/73f897ba5836c1341bec460c618ac76264d986c8
Modified Files
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src/backend/postmaster/checkpointer.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
