pgsql: Fix VM buffer pin management in heap_lock_updated_tuple_rec().
Fix VM buffer pin management in heap_lock_updated_tuple_rec(). Sloppy coding in this function could lead to leaking a VM buffer pin, or to attempting to free the same pin twice. Repair. While at it, reduce the code's tendency to free and reacquire the same page pin. Back-patch to 9.6; before that, this routine did not concern itself with VM pages. Amit Kapila and Tom Lane Discussion: https://postgr.es/m/CAA4eK1KJKwhc=isgtqhjm76cadvswzneauzkh_cx-6qggks...@mail.gmail.com Branch -- master Details --- https://git.postgresql.org/pg/commitdiff/0b1d1a038babff4aadf0862c28e7b667f1b12a30 Modified Files -- src/backend/access/heap/heapam.c | 24 1 file changed, 16 insertions(+), 8 deletions(-)
pgsql: Fix VM buffer pin management in heap_lock_updated_tuple_rec().
Fix VM buffer pin management in heap_lock_updated_tuple_rec(). Sloppy coding in this function could lead to leaking a VM buffer pin, or to attempting to free the same pin twice. Repair. While at it, reduce the code's tendency to free and reacquire the same page pin. Back-patch to 9.6; before that, this routine did not concern itself with VM pages. Amit Kapila and Tom Lane Discussion: https://postgr.es/m/CAA4eK1KJKwhc=isgtqhjm76cadvswzneauzkh_cx-6qggks...@mail.gmail.com Branch -- REL_10_STABLE Details --- https://git.postgresql.org/pg/commitdiff/76ec45756644e5d46301ee292f8f951f9f835fae Modified Files -- src/backend/access/heap/heapam.c | 24 1 file changed, 16 insertions(+), 8 deletions(-)
pgsql: Fix VM buffer pin management in heap_lock_updated_tuple_rec().
Fix VM buffer pin management in heap_lock_updated_tuple_rec(). Sloppy coding in this function could lead to leaking a VM buffer pin, or to attempting to free the same pin twice. Repair. While at it, reduce the code's tendency to free and reacquire the same page pin. Back-patch to 9.6; before that, this routine did not concern itself with VM pages. Amit Kapila and Tom Lane Discussion: https://postgr.es/m/CAA4eK1KJKwhc=isgtqhjm76cadvswzneauzkh_cx-6qggks...@mail.gmail.com Branch -- REL9_6_STABLE Details --- https://git.postgresql.org/pg/commitdiff/96d2df840b0669aad6792b459805367ba70641af Modified Files -- src/backend/access/heap/heapam.c | 24 1 file changed, 16 insertions(+), 8 deletions(-)
