diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2020-09-06 11:50:41 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2020-09-06 11:50:41 -0400 |
| commit | be6667081e233d5868dd7e59ca2226348a489fb5 (patch) | |
| tree | 278260c9c161f44ff940644a4afd134e934c49a1 /src/bin/pg_rewind | |
| parent | 226fd0c518bb17e0433422a161b948feef5601d1 (diff) | |
| download | postgresql-be6667081e233d5868dd7e59ca2226348a489fb5.tar.gz | |
Remove useless lstat() call in pg_rewind.
This is duplicative of an lstat that was just done by the calling
function (traverse_datadir), besides which we weren't really doing
anything with the results. There's not much point in checking to
see if someone removed the file since the previous lstat, since the
FILE_ACTION_REMOVE code would have to deal with missing-file cases
anyway. Moreover, the "exists = false" assignment was a dead store;
nothing was done with that value later.
A syscall saved is a syscall earned, so back-patch to 9.5
where this code was introduced.
Discussion: https://postgr.es/m/1221796.1599329320@sss.pgh.pa.us
Diffstat (limited to 'src/bin/pg_rewind')
| -rw-r--r-- | src/bin/pg_rewind/filemap.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/src/bin/pg_rewind/filemap.c b/src/bin/pg_rewind/filemap.c index 366b97de91..f1190b6287 100644 --- a/src/bin/pg_rewind/filemap.c +++ b/src/bin/pg_rewind/filemap.c @@ -254,23 +254,11 @@ process_target_file(const char *path, file_type_t type, size_t oldsize, const char *link_target) { bool exists; - char localpath[MAXPGPATH]; - struct stat statbuf; file_entry_t key; file_entry_t *key_ptr; filemap_t *map = filemap; file_entry_t *entry; - snprintf(localpath, sizeof(localpath), "%s/%s", datadir_target, path); - if (lstat(localpath, &statbuf) < 0) - { - if (errno != ENOENT) - pg_fatal("could not stat file \"%s\": %s\n", - localpath, strerror(errno)); - - exists = false; - } - if (map->array == NULL) { /* on first call, initialize lookup array */ |