database: Use MAP_PRIVATE with mmap()

We do not have any changes that need to be propagated down to the file.

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

diff --git a/src/database.c b/src/database.c
index 6d2753bd32bf766eff55952894e2d1e3f88e440e..8e1e98fbf98eecb948f97c8cb897862ec60ed806 100644 (file)
--- a/src/database.c
+++ b/src/database.c
@@ -170,7 +170,7 @@ static int loc_database_read_as_section_v1(struct loc_database* db,
 
        if (as_length > 0) {
                db->as_v1 = mmap(NULL, as_length, PROT_READ,
-                       MAP_SHARED, fileno(db->f), as_offset);
+                       MAP_PRIVATE, fileno(db->f), as_offset);
 
                if (db->as_v1 == MAP_FAILED)
                        return 1;
@@ -193,7 +193,7 @@ static int loc_database_read_network_nodes_section_v1(struct loc_database* db,
 
        if (network_nodes_length > 0) {
                db->network_nodes_v1 = mmap(NULL, network_nodes_length, PROT_READ,
-                       MAP_SHARED, fileno(db->f), network_nodes_offset);
+                       MAP_PRIVATE, fileno(db->f), network_nodes_offset);
 
                if (db->network_nodes_v1 == MAP_FAILED)
                        return 1;
@@ -216,7 +216,7 @@ static int loc_database_read_networks_section_v1(struct loc_database* db,
 
        if (networks_length > 0) {
                db->networks_v1 = mmap(NULL, networks_length, PROT_READ,
-                       MAP_SHARED, fileno(db->f), networks_offset);
+                       MAP_PRIVATE, fileno(db->f), networks_offset);
 
                if (db->networks_v1 == MAP_FAILED)
                        return 1;
@@ -239,7 +239,7 @@ static int loc_database_read_countries_section_v1(struct loc_database* db,
 
        if (countries_length > 0) {
                db->countries_v1 = mmap(NULL, countries_length, PROT_READ,
-                       MAP_SHARED, fileno(db->f), countries_offset);
+                       MAP_PRIVATE, fileno(db->f), countries_offset);
 
                if (db->countries_v1 == MAP_FAILED)
                        return 1;