[PATCH 2/2] Set initial value when calling percpu counterinitialization routine

From: Mingming Cao
Date: Mon Apr 24 2006 - 18:52:03 EST



[PATCH 2] - Updates in the users of the percpu counters, to
make use of the new percpu_counter_init() routine now take additional
parameter to allow user to pass the initial value of the global counter.

Signed-Off-By: Mingming Cao <cmm@xxxxxxxxxx>---

linux-2.6.16-cmm/fs/ext2/super.c | 9 +++------
linux-2.6.16-cmm/fs/ext3/super.c | 9 +++------
linux-2.6.16-cmm/fs/file_table.c | 2 +-
linux-2.6.16-cmm/net/core/sock.c | 2 +-
linux-2.6.16-cmm/net/decnet/af_decnet.c | 2 +-
linux-2.6.16-cmm/net/ipv4/proc.c | 2 +-
linux-2.6.16-cmm/net/ipv4/tcp.c | 2 +-
7 files changed, 11 insertions(+), 17 deletions(-)

diff -puN fs/ext3/super.c~ext3_64bit_percpu_counter_fix fs/ext3/super.c
--- linux-2.6.16/fs/ext3/super.c~ext3_64bit_percpu_counter_fix 2006-04-24 14:19:18.000000000 -0700
+++ linux-2.6.16-cmm/fs/ext3/super.c 2006-04-24 14:19:18.000000000 -0700
@@ -1583,9 +1583,6 @@ static int ext3_fill_super (struct super
goto failed_mount;
}

- percpu_counter_init(&sbi->s_freeblocks_counter);
- percpu_counter_init(&sbi->s_freeinodes_counter);
- percpu_counter_init(&sbi->s_dirs_counter);
bgl_lock_init(&sbi->s_blockgroup_lock);

for (i = 0; i < db_count; i++) {
@@ -1727,11 +1724,11 @@ static int ext3_fill_super (struct super
test_opt(sb,DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA ? "ordered":
"writeback");

- percpu_counter_mod(&sbi->s_freeblocks_counter,
+ percpu_counter_init(&sbi->s_freeblocks_counter,
ext3_count_free_blocks(sb));
- percpu_counter_mod(&sbi->s_freeinodes_counter,
+ percpu_counter_init(&sbi->s_freeinodes_counter,
ext3_count_free_inodes(sb));
- percpu_counter_mod(&sbi->s_dirs_counter,
+ percpu_counter_init(&sbi->s_dirs_counter,
ext3_count_dirs(sb));

lock_kernel();
diff -puN fs/file_table.c~ext3_64bit_percpu_counter_fix fs/file_table.c
--- linux-2.6.16/fs/file_table.c~ext3_64bit_percpu_counter_fix 2006-04-24 14:19:18.000000000 -0700
+++ linux-2.6.16-cmm/fs/file_table.c 2006-04-24 14:19:18.000000000 -0700
@@ -300,5 +300,5 @@ void __init files_init(unsigned long mem
if (files_stat.max_files < NR_FILE)
files_stat.max_files = NR_FILE;
files_defer_init();
- percpu_counter_init(&nr_files);
+ percpu_counter_init(&nr_files, 0);
}
diff -puN net/decnet/af_decnet.c~ext3_64bit_percpu_counter_fix net/decnet/af_decnet.c
--- linux-2.6.16/net/decnet/af_decnet.c~ext3_64bit_percpu_counter_fix 2006-04-24 14:19:18.000000000 -0700
+++ linux-2.6.16-cmm/net/decnet/af_decnet.c 2006-04-24 14:19:18.000000000 -0700
@@ -2384,7 +2384,7 @@ static int __init decnet_init(void)
if (rc != 0)
goto out;

- percpu_counter_init(&decnet_memory_allocated);
+ percpu_counter_init(&decnet_memory_allocated, 0);
dn_neigh_init();
dn_dev_init();
dn_route_init();
diff -puN net/ipv4/tcp.c~ext3_64bit_percpu_counter_fix net/ipv4/tcp.c
--- linux-2.6.16/net/ipv4/tcp.c~ext3_64bit_percpu_counter_fix 2006-04-24 14:19:18.000000000 -0700
+++ linux-2.6.16-cmm/net/ipv4/tcp.c 2006-04-24 14:19:18.000000000 -0700
@@ -2178,7 +2178,7 @@ void __init tcp_init(void)
"(established %d bind %d)\n",
tcp_hashinfo.ehash_size << 1, tcp_hashinfo.bhash_size);

- percpu_counter_init(&tcp_memory_allocated);
+ percpu_counter_init(&tcp_memory_allocated, 0);

tcp_register_congestion_control(&tcp_reno);
}
diff -puN fs/ext2/super.c~ext3_64bit_percpu_counter_fix fs/ext2/super.c
--- linux-2.6.16/fs/ext2/super.c~ext3_64bit_percpu_counter_fix 2006-04-24 14:19:18.000000000 -0700
+++ linux-2.6.16-cmm/fs/ext2/super.c 2006-04-24 14:19:18.000000000 -0700
@@ -834,9 +834,6 @@ static int ext2_fill_super(struct super_
printk ("EXT2-fs: not enough memory\n");
goto failed_mount;
}
- percpu_counter_init(&sbi->s_freeblocks_counter);
- percpu_counter_init(&sbi->s_freeinodes_counter);
- percpu_counter_init(&sbi->s_dirs_counter);
bgl_lock_init(&sbi->s_blockgroup_lock);
sbi->s_debts = kmalloc(sbi->s_groups_count * sizeof(*sbi->s_debts),
GFP_KERNEL);
@@ -886,11 +883,11 @@ static int ext2_fill_super(struct super_
ext2_warning(sb, __FUNCTION__,
"mounting ext3 filesystem as ext2");
ext2_setup_super (sb, es, sb->s_flags & MS_RDONLY);
- percpu_counter_mod(&sbi->s_freeblocks_counter,
+ percpu_counter_init(&sbi->s_freeblocks_counter,
ext2_count_free_blocks(sb));
- percpu_counter_mod(&sbi->s_freeinodes_counter,
+ percpu_counter_init(&sbi->s_freeinodes_counter,
ext2_count_free_inodes(sb));
- percpu_counter_mod(&sbi->s_dirs_counter,
+ percpu_counter_init(&sbi->s_dirs_counter,
ext2_count_dirs(sb));
return 0;

diff -puN net/ipv4/proc.c~ext3_64bit_percpu_counter_fix net/ipv4/proc.c
--- linux-2.6.16/net/ipv4/proc.c~ext3_64bit_percpu_counter_fix 2006-04-24 14:19:18.000000000 -0700
+++ linux-2.6.16-cmm/net/ipv4/proc.c 2006-04-24 14:19:18.000000000 -0700
@@ -61,7 +61,7 @@ static int fold_prot_inuse(struct proto
static int sockstat_seq_show(struct seq_file *seq, void *v)
{
socket_seq_show(seq);
- seq_printf(seq, "TCP: inuse %d orphan %d tw %d alloc %d mem %lu\n",
+ seq_printf(seq, "TCP: inuse %d orphan %d tw %d alloc %d mem %llu\n",
fold_prot_inuse(&tcp_prot), atomic_read(&tcp_orphan_count),
tcp_death_row.tw_count, read_sockets_allocated(&tcp_prot),
percpu_counter_read_positive(&tcp_memory_allocated));
diff -puN net/core/sock.c~ext3_64bit_percpu_counter_fix net/core/sock.c
--- linux-2.6.16/net/core/sock.c~ext3_64bit_percpu_counter_fix 2006-04-24 14:19:18.000000000 -0700
+++ linux-2.6.16-cmm/net/core/sock.c 2006-04-24 14:19:18.000000000 -0700
@@ -1783,7 +1783,7 @@ static char proto_method_implemented(con

static void proto_seq_printf(struct seq_file *seq, struct proto *proto)
{
- seq_printf(seq, "%-9s %4u %6d %6lu %-3s %6u %-3s %-10s "
+ seq_printf(seq, "%-9s %4u %6d %6llu %-3s %6u %-3s %-10s "
"%2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c %2c\n",
proto->name,
proto->obj_size,

_


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