[PATCH 02/23] lib: percpu_counter_add

Peter Zijlstra
2007-08-03T12:37:15Z

[-- Attachment #1: percpu_counter_add.patch --]
[-- Type: text/plain, Size: 6871 bytes --]

Because its a better name, _mod implies modulo.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
fs/ext2/balloc.c | 4 ++--
fs/ext2/ialloc.c | 2 +-
fs/ext3/balloc.c | 4 ++--
fs/ext3/resize.c | 4 ++--
fs/ext4/balloc.c | 4 ++--
fs/ext4/resize.c | 4 ++--
include/linux/percpu_counter.h | 8 ++++----
lib/percpu_counter.c | 4 ++--
8 files changed, 17 insertions(+), 17 deletions(-)

Index: linux-2.6/fs/ext2/balloc.c
===================================================================
--- linux-2.6.orig/fs/ext2/balloc.c
+++ linux-2.6/fs/ext2/balloc.c
@@ -99,7 +99,7 @@ static void release_blocks(struct super_
if (count) {
struct ext2_sb_info *sbi = EXT2_SB(sb);

- percpu_counter_mod(&sbi->s_freeblocks_counter, count);
+ percpu_counter_add(&sbi->s_freeblocks_counter, count);
sb->s_dirt = 1;
}
}
@@ -1328,7 +1328,7 @@ allocated:
}

group_adjust_blocks(sb, group_no, gdp, gdp_bh, -num);
- percpu_counter_mod(&sbi->s_freeblocks_counter, -num);
+ percpu_counter_add(&sbi->s_freeblocks_counter, -num);

mark_buffer_dirty(bitmap_bh);
if (sb->s_flags & MS_SYNCHRONOUS)
Index: linux-2.6/fs/ext2/ialloc.c
===================================================================
--- linux-2.6.orig/fs/ext2/ialloc.c
+++ linux-2.6/fs/ext2/ialloc.c
@@ -542,7 +542,7 @@ got:
goto fail;
}

- percpu_counter_mod(&sbi->s_freeinodes_counter, -1);
+ percpu_counter_add(&sbi->s_freeinodes_counter, -1);
if (S_ISDIR(mode))
percpu_counter_inc(&sbi->s_dirs_counter);

Index: linux-2.6/fs/ext3/balloc.c
===================================================================
--- linux-2.6.orig/fs/ext3/balloc.c
+++ linux-2.6/fs/ext3/balloc.c
@@ -570,7 +570,7 @@ do_more:
cpu_to_le16(le16_to_cpu(desc->bg_free_blocks_count) +
group_freed);
spin_unlock(sb_bgl_lock(sbi, block_group));
- percpu_counter_mod(&sbi->s_freeblocks_counter, count);
+ percpu_counter_add(&sbi->s_freeblocks_counter, count);

/* We dirtied the bitmap block */
BUFFER_TRACE(bitmap_bh, "dirtied bitmap block");
@@ -1633,7 +1633,7 @@ allocated:
gdp->bg_free_blocks_count =
cpu_to_le16(le16_to_cpu(gdp->bg_free_blocks_count)-num);
spin_unlock(sb_bgl_lock(sbi, group_no));
- percpu_counter_mod(&sbi->s_freeblocks_counter, -num);
+ percpu_counter_add(&sbi->s_freeblocks_counter, -num);

BUFFER_TRACE(gdp_bh, "journal_dirty_metadata for group descriptor");
err = ext3_journal_dirty_metadata(handle, gdp_bh);
Index: linux-2.6/fs/ext3/resize.c
===================================================================
--- linux-2.6.orig/fs/ext3/resize.c
+++ linux-2.6/fs/ext3/resize.c
@@ -884,9 +884,9 @@ int ext3_group_add(struct super_block *s
input->reserved_blocks);

/* Update the free space counts */
- percpu_counter_mod(&sbi->s_freeblocks_counter,
+ percpu_counter_add(&sbi->s_freeblocks_counter,
input->free_blocks_count);
- percpu_counter_mod(&sbi->s_freeinodes_counter,
+ percpu_counter_add(&sbi->s_freeinodes_counter,
EXT3_INODES_PER_GROUP(sb));

ext3_journal_dirty_metadata(handle, sbi->s_sbh);
Index: linux-2.6/fs/ext4/balloc.c
===================================================================
--- linux-2.6.orig/fs/ext4/balloc.c
+++ linux-2.6/fs/ext4/balloc.c
@@ -587,7 +587,7 @@ do_more:
cpu_to_le16(le16_to_cpu(desc->bg_free_blocks_count) +
group_freed);
spin_unlock(sb_bgl_lock(sbi, block_group));
- percpu_counter_mod(&sbi->s_freeblocks_counter, count);
+ percpu_counter_add(&sbi->s_freeblocks_counter, count);

/* We dirtied the bitmap block */
BUFFER_TRACE(bitmap_bh, "dirtied bitmap block");
@@ -1656,7 +1656,7 @@ allocated:
gdp->bg_free_blocks_count =
cpu_to_le16(le16_to_cpu(gdp->bg_free_blocks_count)-num);
spin_unlock(sb_bgl_lock(sbi, group_no));
- percpu_counter_mod(&sbi->s_freeblocks_counter, -num);
+ percpu_counter_add(&sbi->s_freeblocks_counter, -num);

BUFFER_TRACE(gdp_bh, "journal_dirty_metadata for group descriptor");
err = ext4_journal_dirty_metadata(handle, gdp_bh);
Index: linux-2.6/fs/ext4/resize.c
===================================================================
--- linux-2.6.orig/fs/ext4/resize.c
+++ linux-2.6/fs/ext4/resize.c
@@ -893,9 +893,9 @@ int ext4_group_add(struct super_block *s
input->reserved_blocks);

/* Update the free space counts */
- percpu_counter_mod(&sbi->s_freeblocks_counter,
+ percpu_counter_add(&sbi->s_freeblocks_counter,
input->free_blocks_count);
- percpu_counter_mod(&sbi->s_freeinodes_counter,
+ percpu_counter_add(&sbi->s_freeinodes_counter,
EXT4_INODES_PER_GROUP(sb));

ext4_journal_dirty_metadata(handle, sbi->s_sbh);
Index: linux-2.6/include/linux/percpu_counter.h
===================================================================
--- linux-2.6.orig/include/linux/percpu_counter.h
+++ linux-2.6/include/linux/percpu_counter.h
@@ -32,7 +32,7 @@ struct percpu_counter {

void percpu_counter_init(struct percpu_counter *fbc, s64 amount);
void percpu_counter_destroy(struct percpu_counter *fbc);
-void percpu_counter_mod(struct percpu_counter *fbc, s32 amount);
+void percpu_counter_add(struct percpu_counter *fbc, s32 amount);
s64 percpu_counter_sum(struct percpu_counter *fbc);

static inline s64 percpu_counter_read(struct percpu_counter *fbc)
@@ -71,7 +71,7 @@ static inline void percpu_counter_destro
}

static inline void
-percpu_counter_mod(struct percpu_counter *fbc, s32 amount)
+percpu_counter_add(struct percpu_counter *fbc, s32 amount)
{
preempt_disable();
fbc->count += amount;
@@ -97,12 +97,12 @@ static inline s64 percpu_counter_sum(str

static inline void percpu_counter_inc(struct percpu_counter *fbc)
{
- percpu_counter_mod(fbc, 1);
+ percpu_counter_add(fbc, 1);
}

static inline void percpu_counter_dec(struct percpu_counter *fbc)
{
- percpu_counter_mod(fbc, -1);
+ percpu_counter_add(fbc, -1);
}

#endif /* _LINUX_PERCPU_COUNTER_H */
Index: linux-2.6/lib/percpu_counter.c
===================================================================
--- linux-2.6.orig/lib/percpu_counter.c
+++ linux-2.6/lib/percpu_counter.c
@@ -14,7 +14,7 @@ static LIST_HEAD(percpu_counters);
static DEFINE_MUTEX(percpu_counters_lock);
#endif

-void percpu_counter_mod(struct percpu_counter *fbc, s32 amount)
+void percpu_counter_add(struct percpu_counter *fbc, s32 amount)
{
long count;
s32 *pcount;
@@ -32,7 +32,7 @@ void percpu_counter_mod(struct percpu_co
}
put_cpu();
}
-EXPORT_SYMBOL(percpu_counter_mod);
+EXPORT_SYMBOL(percpu_counter_add);

/*
* Add up all the per-cpu counts, return the result. This is a more accurate