From 689d0650ab63425adaea26afe347015a204958ee Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Thu, 1 Oct 2020 21:52:16 +0200 Subject: libbb: shrink recursive_action() by reducing memory pressure function old new delta recursive_action1 - 316 +316 file_action_grep 161 164 +3 add_to_prg_cache_if_socket 202 205 +3 depmod_main 509 511 +2 writeFileToTarball 488 489 +1 parse_module 281 282 +1 fileAction 207 208 +1 act 189 190 +1 add_to_dirlist 65 64 -1 writeTarFile 196 194 -2 uuidcache_init 47 45 -2 uuidcache_check_device 109 107 -2 true_action 8 6 -2 run_parts_main 310 308 -2 netstat_main 534 532 -2 lsusb_main 29 27 -2 lspci_main 45 43 -2 initial_scan 138 136 -2 grep_main 845 843 -2 find_main 482 480 -2 config_file_action 437 435 -2 chmod_main 142 140 -2 dirAction 14 10 -4 diff_main 1544 1540 -4 chown_main 154 148 -6 skip_dir 136 129 -7 dir_act 191 184 -7 recursive_action 453 69 -384 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 7/20 up/down: 328/-439) Total: -111 bytes Signed-off-by: Denys Vlasenko --- coreutils/chmod.c | 13 +++++++------ coreutils/chown.c | 9 ++++----- 2 files changed, 11 insertions(+), 11 deletions(-) (limited to 'coreutils') diff --git a/coreutils/chmod.c b/coreutils/chmod.c index 27e9b6b86..d2988c490 100644 --- a/coreutils/chmod.c +++ b/coreutils/chmod.c @@ -65,12 +65,14 @@ * symbolic links encountered during recursive directory traversals. */ -static int FAST_FUNC fileAction(const char *fileName, struct stat *statbuf, void* param, int depth) +static int FAST_FUNC fileAction(struct recursive_state *state, + const char *fileName, + struct stat *statbuf) { mode_t newmode; /* match coreutils behavior */ - if (depth == 0) { + if (state->depth == 0) { /* statbuf holds lstat result, but we need stat (follow link) */ if (stat(fileName, statbuf)) goto err; @@ -79,9 +81,9 @@ static int FAST_FUNC fileAction(const char *fileName, struct stat *statbuf, void return TRUE; } - newmode = bb_parse_mode((char *)param, statbuf->st_mode); + newmode = bb_parse_mode((char *)state->userData, statbuf->st_mode); if (newmode == (mode_t)-1) - bb_error_msg_and_die("invalid mode '%s'", (char *)param); + bb_error_msg_and_die("invalid mode '%s'", (char *)state->userData); if (chmod(fileName, newmode) == 0) { if (OPT_VERBOSE @@ -136,8 +138,7 @@ int chmod_main(int argc UNUSED_PARAM, char **argv) OPT_RECURSE, // recurse fileAction, // file action fileAction, // dir action - smode, // user data - 0) // depth + smode) // user data ) { retval = EXIT_FAILURE; } diff --git a/coreutils/chown.c b/coreutils/chown.c index a1c5c0224..ffccc6cce 100644 --- a/coreutils/chown.c +++ b/coreutils/chown.c @@ -97,10 +97,10 @@ struct param_t { chown_fptr chown_func; }; -static int FAST_FUNC fileAction(const char *fileName, struct stat *statbuf, - void *vparam, int depth UNUSED_PARAM) +static int FAST_FUNC fileAction(struct recursive_state *state UNUSED_PARAM, + const char *fileName, struct stat *statbuf) { -#define param (*(struct param_t*)vparam) +#define param (*(struct param_t*)state->userData) #define opt option_mask32 uid_t u = (param.ugid.uid == (uid_t)-1L) ? statbuf->st_uid : param.ugid.uid; gid_t g = (param.ugid.gid == (gid_t)-1L) ? statbuf->st_gid : param.ugid.gid; @@ -159,8 +159,7 @@ int chown_main(int argc UNUSED_PARAM, char **argv) flags, /* flags */ fileAction, /* file action */ fileAction, /* dir action */ - ¶m, /* user data */ - 0) /* depth */ + ¶m) /* user data */ ) { retval = EXIT_FAILURE; } -- cgit v1.2.3