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Message-Id: <1340794759-15286-1-git-send-email-tony@bakeyournoodle.com>
Date: Wed, 27 Jun 2012 20:59:18 +1000
From: Tony Breeds <tony@...eyournoodle.com>
To: linux-ext4 <linux-ext4@...r.kernel.org>, Ted Ts'o <tytso@....edu>,
Andreas Dilger <adilger@...ger.ca>
Subject: [PATCH 1/2] Add support to configure.in to remove all bmap stats from the built tools.
Signed-off-by: Tony Breeds <tony@...eyournoodle.com>
---
configure.in | 37 +++++++++++++++++++++++++++++++++++++
lib/config.h.in | 6 ++++++
lib/ext2fs/blkmap64_rb.c | 14 +++++++-------
lib/ext2fs/bmap64.h | 6 +++---
lib/ext2fs/ext2fs.h | 4 ----
lib/ext2fs/gen_bitmap64.c | 24 ++++++++++++------------
6 files changed, 65 insertions(+), 26 deletions(-)
diff --git a/configure.in b/configure.in
index a02234d..eefb0f3 100644
--- a/configure.in
+++ b/configure.in
@@ -763,6 +763,43 @@ AC_MSG_RESULT([Enabling mmp support by default])
AC_DEFINE(CONFIG_MMP, 1)
)
dnl
+dnl handle --disable-bmap-stats
+dnl
+AH_TEMPLATE([ENABLE_BMAP_STATS], [Define to 1 to enable bitmap stats.])
+AC_ARG_ENABLE([bmap-stats],
+[ --disable-bmap-stats disable collection of bitmap stats.],
+if test "$enableval" = "no"
+then
+ AC_MSG_RESULT([Disabling bitmap statistics support])
+else
+ AC_MSG_RESULT([Enabling bitmap statistics support])
+ AC_DEFINE(ENABLE_BMAP_STATS, 1)
+fi
+,
+AC_MSG_RESULT([Enabling bitmap statistics support by default])
+AC_DEFINE(ENABLE_BMAP_STATS, 1)
+)
+dnl
+dnl handle --enable-bmap-stats-ops
+dnl
+AH_TEMPLATE([ENABLE_BMAP_STATS_OPS], [Define to 1 to enable bitmap stats.])
+AC_ARG_ENABLE([bmap-stats-ops],
+[ --enable-bmap-stats-ops enable collection of bitmap stats additional operations.],
+if test "$enableval" = "no"
+then
+ AC_MSG_RESULT([Disabling bitmap statistics operations support])
+else
+ dnl There has to be a better way!
+ AS_IF([test "x${enable_bmap_stats}" = "xno"],
+ AC_MSG_FAILURE([Error --enable-bmap-stats-ops requires bmap-stats]))
+
+ AC_MSG_RESULT([Enabling bitmap statistics operations support])
+ AC_DEFINE(ENABLE_BMAP_STATS_OPS, 1)
+fi
+,
+AC_MSG_RESULT([Disabling bitmap statistics operations support by default])
+)
+dnl
dnl
dnl
MAKEFILE_LIBRARY=$srcdir/lib/Makefile.library
diff --git a/lib/config.h.in b/lib/config.h.in
index 52c3897..6f88c9c 100644
--- a/lib/config.h.in
+++ b/lib/config.h.in
@@ -29,6 +29,12 @@
/* Define to 1 if using `alloca.c'. */
#undef C_ALLOCA
+/* Define to 1 to enable bitmap stats. */
+#undef ENABLE_BMAP_STATS
+
+/* Define to 1 to enable bitmap stats. */
+#undef ENABLE_BMAP_STATS_OPS
+
/* Define to 1 if ext2 compression enabled */
#undef ENABLE_COMPRESSION
diff --git a/lib/ext2fs/blkmap64_rb.c b/lib/ext2fs/blkmap64_rb.c
index a83f8ac..e6b7e04 100644
--- a/lib/ext2fs/blkmap64_rb.c
+++ b/lib/ext2fs/blkmap64_rb.c
@@ -40,7 +40,7 @@ struct ext2fs_rb_private {
struct rb_root root;
struct bmap_rb_extent **wcursor;
struct bmap_rb_extent **rcursor;
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
__u64 mark_hit;
__u64 test_hit;
#endif
@@ -174,7 +174,7 @@ static errcode_t rb_alloc_private_data (ext2fs_generic_bitmap bitmap)
*bp->rcursor = NULL;
*bp->wcursor = NULL;
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
bp->test_hit = 0;
bp->mark_hit = 0;
#endif
@@ -324,7 +324,7 @@ rb_test_bit(struct ext2fs_rb_private *bp, __u64 bit)
goto search_tree;
if (bit >= rcursor->start && bit < rcursor->start + rcursor->count) {
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
bp->test_hit++;
#endif
return 1;
@@ -368,7 +368,7 @@ static int rb_insert_extent(__u64 start, __u64 count,
if (ext) {
if (start >= ext->start &&
start <= (ext->start + ext->count)) {
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
bp->mark_hit++;
#endif
goto got_extent;
@@ -737,7 +737,7 @@ static void rb_clear_bmap(ext2fs_generic_bitmap bitmap)
*bp->wcursor = NULL;
}
-#ifdef BMAP_STATS
+#ifdef ENABLE_BMAP_STATS
static void rb_print_stats(ext2fs_generic_bitmap bitmap)
{
struct ext2fs_rb_private *bp;
@@ -748,7 +748,7 @@ static void rb_print_stats(ext2fs_generic_bitmap bitmap)
__u64 min_size = ULONG_MAX;
__u64 size = 0, avg_size = 0;
double eff;
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
__u64 mark_all, test_all;
double m_hit = 0.0, t_hit = 0.0;
#endif
@@ -773,7 +773,7 @@ static void rb_print_stats(ext2fs_generic_bitmap bitmap)
min_size = 0;
eff = (double)((count * sizeof(struct bmap_rb_extent)) << 3) /
(bitmap->real_end - bitmap->start);
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
mark_all = bitmap->stats.mark_count + bitmap->stats.mark_ext_count;
test_all = bitmap->stats.test_count + bitmap->stats.test_ext_count;
if (mark_all)
diff --git a/lib/ext2fs/bmap64.h b/lib/ext2fs/bmap64.h
index f44d379..c5384c9 100644
--- a/lib/ext2fs/bmap64.h
+++ b/lib/ext2fs/bmap64.h
@@ -13,7 +13,7 @@ struct ext2_bmap_statistics {
int type;
struct timeval created;
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
unsigned long copy_count;
unsigned long resize_count;
unsigned long mark_count;
@@ -33,7 +33,7 @@ struct ext2_bmap_statistics {
unsigned long mark_seq;
unsigned long test_seq;
-#endif /* BMAP_STATS_OPS */
+#endif /* ENABLE_BMAP_STATS_OPS */
};
@@ -48,7 +48,7 @@ struct ext2fs_struct_generic_bitmap {
char *description;
void *private;
errcode_t base_error_code;
-#ifdef BMAP_STATS
+#ifdef ENABLE_BMAP_STATS
struct ext2_bmap_statistics stats;
#endif
};
diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h
index 542b20f..6b9a577 100644
--- a/lib/ext2fs/ext2fs.h
+++ b/lib/ext2fs/ext2fs.h
@@ -1161,10 +1161,6 @@ extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bit
__u32 *out);
/* gen_bitmap64.c */
-
-/* Generate and print bitmap usage statistics */
-#define BMAP_STATS
-
void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
int type, __u64 start, __u64 end,
diff --git a/lib/ext2fs/gen_bitmap64.c b/lib/ext2fs/gen_bitmap64.c
index 07d6d52..44b733d 100644
--- a/lib/ext2fs/gen_bitmap64.c
+++ b/lib/ext2fs/gen_bitmap64.c
@@ -80,7 +80,7 @@ static void warn_bitmap(ext2fs_generic_bitmap bitmap,
#endif
}
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
#define INC_STAT(map, name) map->stats.name
#else
#define INC_STAT(map, name) ;;
@@ -124,7 +124,7 @@ errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
if (retval)
return retval;
-#ifdef BMAP_STATS
+#ifdef ENABLE_BMAP_STATS
if (gettimeofday(&bitmap->stats.created,
(struct timezone *) NULL) == -1) {
perror("gettimeofday");
@@ -173,18 +173,18 @@ errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
return 0;
}
-#ifdef BMAP_STATS
+#ifdef ENABLE_BMAP_STATS
void ext2fs_print_bmap_statistics(ext2fs_generic_bitmap bitmap)
{
struct ext2_bmap_statistics *stats = &bitmap->stats;
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
float mark_seq_perc = 0.0, test_seq_perc = 0.0;
float mark_back_perc = 0.0, test_back_perc = 0.0;
#endif
double inuse;
struct timeval now;
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
if (stats->test_count) {
test_seq_perc = ((float)stats->test_seq /
stats->test_count) * 100;
@@ -213,7 +213,7 @@ void ext2fs_print_bmap_statistics(ext2fs_generic_bitmap bitmap)
fprintf(stderr, "\n[+] %s bitmap (type %d)\n", bitmap->description,
stats->type);
fprintf(stderr, "=================================================\n");
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
fprintf(stderr, "%16llu bits long\n",
bitmap->real_end - bitmap->start);
fprintf(stderr, "%16lu copy_bmap\n%16lu resize_bmap\n",
@@ -236,7 +236,7 @@ void ext2fs_print_bmap_statistics(ext2fs_generic_bitmap bitmap)
fprintf(stderr, "%16llu bits marked backwards (%.2f%%)\n"
"%16.2f seconds in use\n",
stats->mark_back, mark_back_perc, inuse);
-#endif /* BMAP_STATS_OPS */
+#endif /* ENABLE_BMAP_STATS_OPS */
}
#endif
@@ -253,7 +253,7 @@ void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap)
if (!EXT2FS_IS_64_BITMAP(bmap))
return;
-#ifdef BMAP_STATS
+#ifdef ENABLE_BMAP_STATS
if (getenv("E2FSPROGS_BITMAP_STATS")) {
ext2fs_print_bmap_statistics(bmap);
bmap->bitmap_ops->print_stats(bmap);
@@ -293,10 +293,10 @@ errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
return retval;
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
src->stats.copy_count++;
#endif
-#ifdef BMAP_STATS
+#ifdef ENABLE_BMAP_STATS
if (gettimeofday(&new_bmap->stats.created,
(struct timezone *) NULL) == -1) {
perror("gettimeofday");
@@ -442,7 +442,7 @@ int ext2fs_mark_generic_bmap(ext2fs_generic_bitmap bitmap,
arg >>= bitmap->cluster_bits;
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
if (arg == bitmap->stats.last_marked + 1)
bitmap->stats.mark_seq++;
if (arg < bitmap->stats.last_marked)
@@ -509,7 +509,7 @@ int ext2fs_test_generic_bmap(ext2fs_generic_bitmap bitmap,
arg >>= bitmap->cluster_bits;
-#ifdef BMAP_STATS_OPS
+#ifdef ENABLE_BMAP_STATS_OPS
bitmap->stats.test_count++;
if (arg == bitmap->stats.last_tested + 1)
bitmap->stats.test_seq++;
--
1.7.7.6
--
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