Fix some typos in comments

Masahiko Sawada

diff --git a/src/backend/utils/mmgr/dsa.c b/src/backend/utils/mmgr/dsa.c
index 2503aa5e988845a9f3334e9576d3f81a21d159d8..7dc43f1ea79017acc024b7cfd4a5211e2945fabd 100644 (file)
--- a/src/backend/utils/mmgr/dsa.c
+++ b/src/backend/utils/mmgr/dsa.c
@@ -435,7 +435,7 @@ dsa_create(int tranche_id)
     */
    dsm_pin_segment(segment);
 
-   /* Create a new DSA area with the control objet in this segment. */
+   /* Create a new DSA area with the control object in this segment. */
    area = create_internal(dsm_segment_address(segment),
                           DSA_INITIAL_SEGMENT_SIZE,
                           tranche_id,
@@ -1147,7 +1147,7 @@ create_internal(void *place, size_t size,
        elog(ERROR, "dsa_area space must be at least %zu, but %zu provided",
             dsa_minimum_size(), size);
 
-   /* Now figure out how much space is usuable */
+   /* Now figure out how much space is usable */
    total_pages = size / FPM_PAGE_SIZE;
    metadata_bytes =
        MAXALIGN(sizeof(dsa_area_control)) +
@@ -1672,7 +1672,7 @@ get_segment_by_index(dsa_area *area, dsa_segment_index index)
         */
        handle = area->control->segment_handles[index];
 
-       /* It's an erro to try to access an unused slot. */
+       /* It's an error to try to access an unused slot. */
        if (handle == DSM_HANDLE_INVALID)
            elog(ERROR,
               "dsa_area could not attach to a segment that has been freed");