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Date: Sat, 11 Apr 2009 15:46:07 -0400
From: Theodore Ts'o <tytso@....edu>
To: Ext4 Developers List <linux-ext4@...r.kernel.org>
Cc: Theodore Ts'o <tytso@....edu>
Subject: [PATCH, RFC 2/2] ext4: Convert instrumentation from markers to tracepoints
Signed-off-by: "Theodore Ts'o" <tytso@....edu>
---
fs/ext4/ext4.h | 22 +--
fs/ext4/ext4_i.h | 12 -
fs/ext4/fsync.c | 8 +-
fs/ext4/ialloc.c | 17 +-
fs/ext4/inode.c | 79 ++---
fs/ext4/mballoc.c | 84 ++---
fs/ext4/mballoc.h | 68 +----
fs/ext4/super.c | 6 +-
include/linux/ext4_trace_types.h | 108 ++++++
include/trace/ext4.h | 8 +
include/trace/ext4_event_types.h | 690 +++++++++++++++++++++++++++++++++++++
include/trace/trace_event_types.h | 1 +
include/trace/trace_events.h | 1 +
13 files changed, 886 insertions(+), 218 deletions(-)
create mode 100644 include/linux/ext4_trace_types.h
create mode 100644 include/trace/ext4.h
create mode 100644 include/trace/ext4_event_types.h
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index d0f15ef..791da89 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -21,6 +21,7 @@
#include <linux/magic.h>
#include <linux/jbd2.h>
#include <linux/quota.h>
+#include <linux/ext4_trace_types.h>
#include "ext4_i.h"
/*
@@ -70,27 +71,6 @@
#define EXT4_MB_DELALLOC_RESERVED 1024
-struct ext4_allocation_request {
- /* target inode for block we're allocating */
- struct inode *inode;
- /* logical block in target inode */
- ext4_lblk_t logical;
- /* phys. target (a hint) */
- ext4_fsblk_t goal;
- /* the closest logical allocated block to the left */
- ext4_lblk_t lleft;
- /* phys. block for ^^^ */
- ext4_fsblk_t pleft;
- /* the closest logical allocated block to the right */
- ext4_lblk_t lright;
- /* phys. block for ^^^ */
- ext4_fsblk_t pright;
- /* how many blocks we want to allocate */
- unsigned int len;
- /* flags. see above EXT4_MB_HINT_* */
- unsigned int flags;
-};
-
/*
* Special inodes numbers
*/
diff --git a/fs/ext4/ext4_i.h b/fs/ext4/ext4_i.h
index 4ce2187..48bf4bd 100644
--- a/fs/ext4/ext4_i.h
+++ b/fs/ext4/ext4_i.h
@@ -21,18 +21,6 @@
#include <linux/seqlock.h>
#include <linux/mutex.h>
-/* data type for block offset of block group */
-typedef int ext4_grpblk_t;
-
-/* data type for filesystem-wide blocks number */
-typedef unsigned long long ext4_fsblk_t;
-
-/* data type for file logical block number */
-typedef __u32 ext4_lblk_t;
-
-/* data type for block group number */
-typedef unsigned int ext4_group_t;
-
/*
* storage for cached extent
*/
diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c
index 5afe437..783efcb 100644
--- a/fs/ext4/fsync.c
+++ b/fs/ext4/fsync.c
@@ -28,10 +28,12 @@
#include <linux/writeback.h>
#include <linux/jbd2.h>
#include <linux/blkdev.h>
-#include <linux/marker.h>
+#include <trace/ext4.h>
#include "ext4.h"
#include "ext4_jbd2.h"
+DEFINE_TRACE(ext4_sync_file);
+
/*
* akpm: A new design for ext4_sync_file().
*
@@ -52,9 +54,7 @@ int ext4_sync_file(struct file *file, struct dentry *dentry, int datasync)
J_ASSERT(ext4_journal_current_handle() == NULL);
- trace_mark(ext4_sync_file, "dev %s datasync %d ino %ld parent %ld",
- inode->i_sb->s_id, datasync, inode->i_ino,
- dentry->d_parent->d_inode->i_ino);
+ trace_ext4_sync_file(file, dentry, datasync);
/*
* data=writeback:
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 47b84e8..80288de 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -22,6 +22,7 @@
#include <linux/random.h>
#include <linux/bitops.h>
#include <linux/blkdev.h>
+#include <trace/ext4.h>
#include <asm/byteorder.h>
#include "ext4.h"
#include "ext4_jbd2.h"
@@ -29,6 +30,10 @@
#include "acl.h"
#include "group.h"
+DEFINE_TRACE(ext4_free_inode);
+DEFINE_TRACE(ext4_request_inode);
+DEFINE_TRACE(ext4_allocate_inode);
+
/*
* ialloc.c contains the inodes allocation and deallocation routines
*/
@@ -209,11 +214,7 @@ void ext4_free_inode(handle_t *handle, struct inode *inode)
ino = inode->i_ino;
ext4_debug("freeing inode %lu\n", ino);
- trace_mark(ext4_free_inode,
- "dev %s ino %lu mode %d uid %lu gid %lu bocks %llu",
- sb->s_id, inode->i_ino, inode->i_mode,
- (unsigned long) inode->i_uid, (unsigned long) inode->i_gid,
- (unsigned long long) inode->i_blocks);
+ trace_ext4_free_inode(inode);
/*
* Note: we must free any quota before locking the superblock,
@@ -817,8 +818,7 @@ struct inode *ext4_new_inode(handle_t *handle, struct inode *dir, int mode)
return ERR_PTR(-EPERM);
sb = dir->i_sb;
- trace_mark(ext4_request_inode, "dev %s dir %lu mode %d", sb->s_id,
- dir->i_ino, mode);
+ trace_ext4_request_inode(dir, mode);
inode = new_inode(sb);
if (!inode)
return ERR_PTR(-ENOMEM);
@@ -1050,8 +1050,7 @@ got:
}
ext4_debug("allocating inode %lu\n", inode->i_ino);
- trace_mark(ext4_allocate_inode, "dev %s ino %lu dir %lu mode %d",
- sb->s_id, inode->i_ino, dir->i_ino, mode);
+ trace_ext4_allocate_inode(inode, dir, mode);
goto really_out;
fail:
ext4_std_error(sb, err);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index c6bd6ce..3866f44 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -37,11 +37,24 @@
#include <linux/namei.h>
#include <linux/uio.h>
#include <linux/bio.h>
+#include <trace/ext4.h>
#include "ext4_jbd2.h"
#include "xattr.h"
#include "acl.h"
#include "ext4_extents.h"
+DEFINE_TRACE(ext4_write_begin);
+DEFINE_TRACE(ext4_ordered_write_end);
+DEFINE_TRACE(ext4_writeback_write_end);
+DEFINE_TRACE(ext4_journalled_write_end);
+DEFINE_TRACE(ext4_da_writepage);
+DEFINE_TRACE(ext4_da_writepages);
+DEFINE_TRACE(ext4_da_writepages_result);
+DEFINE_TRACE(ext4_da_write_begin);
+DEFINE_TRACE(ext4_da_write_end);
+DEFINE_TRACE(ext4_normal_writepage);
+DEFINE_TRACE(ext4_journalled_writepage);
+
#define MPAGE_DA_EXTENT_TAIL 0x01
static inline int ext4_begin_ordered_truncate(struct inode *inode,
@@ -1433,10 +1446,7 @@ static int ext4_write_begin(struct file *file, struct address_space *mapping,
pgoff_t index;
unsigned from, to;
- trace_mark(ext4_write_begin,
- "dev %s ino %lu pos %llu len %u flags %u",
- inode->i_sb->s_id, inode->i_ino,
- (unsigned long long) pos, len, flags);
+ trace_ext4_write_begin(inode, pos, len, flags);
index = pos >> PAGE_CACHE_SHIFT;
from = pos & (PAGE_CACHE_SIZE - 1);
to = from + len;
@@ -1512,10 +1522,7 @@ static int ext4_ordered_write_end(struct file *file,
struct inode *inode = mapping->host;
int ret = 0, ret2;
- trace_mark(ext4_ordered_write_end,
- "dev %s ino %lu pos %llu len %u copied %u",
- inode->i_sb->s_id, inode->i_ino,
- (unsigned long long) pos, len, copied);
+ trace_ext4_ordered_write_end(inode, pos, len, copied);
ret = ext4_jbd2_file_inode(handle, inode);
if (ret == 0) {
@@ -1554,10 +1561,7 @@ static int ext4_writeback_write_end(struct file *file,
int ret = 0, ret2;
loff_t new_i_size;
- trace_mark(ext4_writeback_write_end,
- "dev %s ino %lu pos %llu len %u copied %u",
- inode->i_sb->s_id, inode->i_ino,
- (unsigned long long) pos, len, copied);
+ trace_ext4_writeback_write_end(inode, pos, len, copied);
new_i_size = pos + copied;
if (new_i_size > EXT4_I(inode)->i_disksize) {
ext4_update_i_disksize(inode, new_i_size);
@@ -1593,10 +1597,7 @@ static int ext4_journalled_write_end(struct file *file,
unsigned from, to;
loff_t new_i_size;
- trace_mark(ext4_journalled_write_end,
- "dev %s ino %lu pos %llu len %u copied %u",
- inode->i_sb->s_id, inode->i_ino,
- (unsigned long long) pos, len, copied);
+ trace_ext4_journalled_write_end(inode, pos, len, copied);
from = pos & (PAGE_CACHE_SIZE - 1);
to = from + len;
@@ -2372,9 +2373,7 @@ static int ext4_da_writepage(struct page *page,
struct buffer_head *page_bufs;
struct inode *inode = page->mapping->host;
- trace_mark(ext4_da_writepage,
- "dev %s ino %lu page_index %lu",
- inode->i_sb->s_id, inode->i_ino, page->index);
+ trace_ext4_da_writepage(inode, page);
size = i_size_read(inode);
if (page->index == size >> PAGE_CACHE_SHIFT)
len = size & ~PAGE_CACHE_MASK;
@@ -2486,19 +2485,7 @@ static int ext4_da_writepages(struct address_space *mapping,
int needed_blocks, ret = 0, nr_to_writebump = 0;
struct ext4_sb_info *sbi = EXT4_SB(mapping->host->i_sb);
- trace_mark(ext4_da_writepages,
- "dev %s ino %lu nr_t_write %ld "
- "pages_skipped %ld range_start %llu "
- "range_end %llu nonblocking %d "
- "for_kupdate %d for_reclaim %d "
- "for_writepages %d range_cyclic %d",
- inode->i_sb->s_id, inode->i_ino,
- wbc->nr_to_write, wbc->pages_skipped,
- (unsigned long long) wbc->range_start,
- (unsigned long long) wbc->range_end,
- wbc->nonblocking, wbc->for_kupdate,
- wbc->for_reclaim, wbc->for_writepages,
- wbc->range_cyclic);
+ trace_ext4_da_writepages(inode, wbc);
/*
* No pages to write? This is mainly a kludge to avoid starting
@@ -2664,14 +2651,7 @@ out_writepages:
if (!no_nrwrite_index_update)
wbc->no_nrwrite_index_update = 0;
wbc->nr_to_write -= nr_to_writebump;
- trace_mark(ext4_da_writepage_result,
- "dev %s ino %lu ret %d pages_written %d "
- "pages_skipped %ld congestion %d "
- "more_io %d no_nrwrite_index_update %d",
- inode->i_sb->s_id, inode->i_ino, ret,
- pages_written, wbc->pages_skipped,
- wbc->encountered_congestion, wbc->more_io,
- wbc->no_nrwrite_index_update);
+ trace_ext4_da_writepages_result(inode, wbc, ret, pages_written);
return ret;
}
@@ -2723,11 +2703,7 @@ static int ext4_da_write_begin(struct file *file, struct address_space *mapping,
len, flags, pagep, fsdata);
}
*fsdata = (void *)0;
-
- trace_mark(ext4_da_write_begin,
- "dev %s ino %lu pos %llu len %u flags %u",
- inode->i_sb->s_id, inode->i_ino,
- (unsigned long long) pos, len, flags);
+ trace_ext4_da_write_begin(inode, pos, len, flags);
retry:
/*
* With delayed allocation, we don't log the i_disksize update
@@ -2820,10 +2796,7 @@ static int ext4_da_write_end(struct file *file,
}
}
- trace_mark(ext4_da_write_end,
- "dev %s ino %lu pos %llu len %u copied %u",
- inode->i_sb->s_id, inode->i_ino,
- (unsigned long long) pos, len, copied);
+ trace_ext4_da_write_end(inode, pos, len, copied);
start = pos & (PAGE_CACHE_SIZE - 1);
end = start + copied - 1;
@@ -3076,9 +3049,7 @@ static int ext4_normal_writepage(struct page *page,
loff_t size = i_size_read(inode);
loff_t len;
- trace_mark(ext4_normal_writepage,
- "dev %s ino %lu page_index %lu",
- inode->i_sb->s_id, inode->i_ino, page->index);
+ trace_ext4_normal_writepage(inode, page);
J_ASSERT(PageLocked(page));
if (page->index == size >> PAGE_CACHE_SHIFT)
len = size & ~PAGE_CACHE_MASK;
@@ -3164,9 +3135,7 @@ static int ext4_journalled_writepage(struct page *page,
loff_t size = i_size_read(inode);
loff_t len;
- trace_mark(ext4_journalled_writepage,
- "dev %s ino %lu page_index %lu",
- inode->i_sb->s_id, inode->i_ino, page->index);
+ trace_ext4_journalled_writepage(inode, page);
J_ASSERT(PageLocked(page));
if (page->index == size >> PAGE_CACHE_SHIFT)
len = size & ~PAGE_CACHE_MASK;
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index f871677..73a4866 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -342,6 +342,17 @@ static void release_blocks_on_commit(journal_t *journal, transaction_t *txn);
+DEFINE_TRACE(ext4_discard_blocks);
+DEFINE_TRACE(ext4_mb_new_inode_pa);
+DEFINE_TRACE(ext4_mb_new_group_pa);
+DEFINE_TRACE(ext4_mb_release_inode_pa);
+DEFINE_TRACE(ext4_mb_release_group_pa);
+DEFINE_TRACE(ext4_discard_preallocations);
+DEFINE_TRACE(ext4_mb_discard_preallocations);
+DEFINE_TRACE(ext4_request_blocks);
+DEFINE_TRACE(ext4_allocate_blocks);
+DEFINE_TRACE(ext4_free_blocks);
+
static inline void *mb_correct_addr_and_bit(int *bit, void *addr)
{
#if BITS_PER_LONG == 64
@@ -2882,9 +2893,8 @@ static void release_blocks_on_commit(journal_t *journal, transaction_t *txn)
discard_block = (ext4_fsblk_t) entry->group * EXT4_BLOCKS_PER_GROUP(sb)
+ entry->start_blk
+ le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block);
- trace_mark(ext4_discard_blocks, "dev %s blk %llu count %u",
- sb->s_id, (unsigned long long) discard_block,
- entry->count);
+ trace_ext4_discard_blocks(sb, (unsigned long long)discard_block,
+ entry->count);
sb_issue_discard(sb, discard_block, entry->count);
kmem_cache_free(ext4_free_ext_cachep, entry);
@@ -3658,10 +3668,7 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac)
mb_debug("new inode pa %p: %llu/%u for %u\n", pa,
pa->pa_pstart, pa->pa_len, pa->pa_lstart);
- trace_mark(ext4_mb_new_inode_pa,
- "dev %s ino %lu pstart %llu len %u lstart %u",
- sb->s_id, ac->ac_inode->i_ino,
- pa->pa_pstart, pa->pa_len, pa->pa_lstart);
+ trace_ext4_mb_new_inode_pa(ac, pa);
ext4_mb_use_inode_pa(ac, pa);
atomic_add(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated);
@@ -3720,9 +3727,8 @@ ext4_mb_new_group_pa(struct ext4_allocation_context *ac)
pa->pa_type = MB_GROUP_PA;
mb_debug("new group pa %p: %llu/%u for %u\n", pa,
- pa->pa_pstart, pa->pa_len, pa->pa_lstart);
- trace_mark(ext4_mb_new_group_pa, "dev %s pstart %llu len %u lstart %u",
- sb->s_id, pa->pa_pstart, pa->pa_len, pa->pa_lstart);
+ pa->pa_pstart, pa->pa_len, pa->pa_lstart);
+ trace_ext4_mb_new_group_pa(ac, pa);
ext4_mb_use_group_pa(ac, pa);
atomic_add(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated);
@@ -3812,10 +3818,8 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
ext4_mb_store_history(ac);
}
- trace_mark(ext4_mb_release_inode_pa,
- "dev %s ino %lu block %llu count %u",
- sb->s_id, pa->pa_inode->i_ino, grp_blk_start + bit,
- next - bit);
+ trace_ext4_mb_release_inode_pa(ac, pa, grp_blk_start + bit,
+ next - bit);
mb_free_blocks(pa->pa_inode, e4b, bit, next - bit);
bit = next + 1;
}
@@ -3849,8 +3853,7 @@ ext4_mb_release_group_pa(struct ext4_buddy *e4b,
if (ac)
ac->ac_op = EXT4_MB_HISTORY_DISCARD;
- trace_mark(ext4_mb_release_group_pa, "dev %s pstart %llu len %d",
- sb->s_id, pa->pa_pstart, pa->pa_len);
+ trace_ext4_mb_release_group_pa(ac, pa);
BUG_ON(pa->pa_deleted == 0);
ext4_get_group_no_and_offset(sb, pa->pa_pstart, &group, &bit);
BUG_ON(group != e4b->bd_group && pa->pa_len != 0);
@@ -3918,6 +3921,8 @@ ext4_mb_discard_group_preallocations(struct super_block *sb,
INIT_LIST_HEAD(&list);
ac = kmem_cache_alloc(ext4_ac_cachep, GFP_NOFS);
+ if (ac)
+ ac->ac_sb = sb;
repeat:
ext4_lock_group(sb, group);
list_for_each_entry_safe(pa, tmp,
@@ -4016,12 +4021,15 @@ void ext4_discard_preallocations(struct inode *inode)
}
mb_debug("discard preallocation for inode %lu\n", inode->i_ino);
- trace_mark(ext4_discard_preallocations, "dev %s ino %lu", sb->s_id,
- inode->i_ino);
+ trace_ext4_discard_preallocations(inode);
INIT_LIST_HEAD(&list);
ac = kmem_cache_alloc(ext4_ac_cachep, GFP_NOFS);
+ if (ac) {
+ ac->ac_sb = sb;
+ ac->ac_inode = inode;
+ }
repeat:
/* first, collect all pa's in the inode */
spin_lock(&ei->i_prealloc_lock);
@@ -4304,6 +4312,8 @@ ext4_mb_discard_lg_preallocations(struct super_block *sb,
INIT_LIST_HEAD(&discard_list);
ac = kmem_cache_alloc(ext4_ac_cachep, GFP_NOFS);
+ if (ac)
+ ac->ac_sb = sb;
spin_lock(&lg->lg_prealloc_lock);
list_for_each_entry_rcu(pa, &lg->lg_prealloc_list[order],
@@ -4473,8 +4483,7 @@ static int ext4_mb_discard_preallocations(struct super_block *sb, int needed)
int ret;
int freed = 0;
- trace_mark(ext4_mb_discard_preallocations, "dev %s needed %d",
- sb->s_id, needed);
+ trace_ext4_mb_discard_preallocations(sb, needed);
for (i = 0; i < EXT4_SB(sb)->s_groups_count && needed > 0; i++) {
ret = ext4_mb_discard_group_preallocations(sb, i, needed);
freed += ret;
@@ -4503,17 +4512,7 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
sb = ar->inode->i_sb;
sbi = EXT4_SB(sb);
- trace_mark(ext4_request_blocks, "dev %s flags %u len %u ino %lu "
- "lblk %llu goal %llu lleft %llu lright %llu "
- "pleft %llu pright %llu ",
- sb->s_id, ar->flags, ar->len,
- ar->inode ? ar->inode->i_ino : 0,
- (unsigned long long) ar->logical,
- (unsigned long long) ar->goal,
- (unsigned long long) ar->lleft,
- (unsigned long long) ar->lright,
- (unsigned long long) ar->pleft,
- (unsigned long long) ar->pright);
+ trace_ext4_request_blocks(ar);
/*
* For delayed allocation, we could skip the ENOSPC and
@@ -4549,7 +4548,10 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
}
ac = kmem_cache_alloc(ext4_ac_cachep, GFP_NOFS);
- if (!ac) {
+ if (ac) {
+ ac->ac_sb = sb;
+ ac->ac_inode = ar->inode;
+ } else {
ar->len = 0;
*errp = -ENOMEM;
goto out1;
@@ -4622,18 +4624,7 @@ out3:
reserv_blks);
}
- trace_mark(ext4_allocate_blocks,
- "dev %s block %llu flags %u len %u ino %lu "
- "logical %llu goal %llu lleft %llu lright %llu "
- "pleft %llu pright %llu ",
- sb->s_id, (unsigned long long) block,
- ar->flags, ar->len, ar->inode ? ar->inode->i_ino : 0,
- (unsigned long long) ar->logical,
- (unsigned long long) ar->goal,
- (unsigned long long) ar->lleft,
- (unsigned long long) ar->lright,
- (unsigned long long) ar->pleft,
- (unsigned long long) ar->pright);
+ trace_ext4_allocate_blocks(ar, (unsigned long long)block);
return block;
}
@@ -4768,10 +4759,7 @@ void ext4_mb_free_blocks(handle_t *handle, struct inode *inode,
}
ext4_debug("freeing block %lu\n", block);
- trace_mark(ext4_free_blocks,
- "dev %s block %llu count %lu metadata %d ino %lu",
- sb->s_id, (unsigned long long) block, count, metadata,
- inode ? inode->i_ino : 0);
+ trace_ext4_free_blocks(inode, block, count, metadata);
ac = kmem_cache_alloc(ext4_ac_cachep, GFP_NOFS);
if (ac) {
diff --git a/fs/ext4/mballoc.h b/fs/ext4/mballoc.h
index dd9e6cd..61829a2 100644
--- a/fs/ext4/mballoc.h
+++ b/fs/ext4/mballoc.h
@@ -19,8 +19,8 @@
#include <linux/seq_file.h>
#include <linux/version.h>
#include <linux/blkdev.h>
-#include <linux/marker.h>
#include <linux/mutex.h>
+#include <trace/ext4.h>
#include "ext4_jbd2.h"
#include "ext4.h"
#include "group.h"
@@ -118,37 +118,11 @@ struct ext4_free_data {
tid_t t_tid;
};
-struct ext4_prealloc_space {
- struct list_head pa_inode_list;
- struct list_head pa_group_list;
- union {
- struct list_head pa_tmp_list;
- struct rcu_head pa_rcu;
- } u;
- spinlock_t pa_lock;
- atomic_t pa_count;
- unsigned pa_deleted;
- ext4_fsblk_t pa_pstart; /* phys. block */
- ext4_lblk_t pa_lstart; /* log. block */
- unsigned short pa_len; /* len of preallocated chunk */
- unsigned short pa_free; /* how many blocks are free */
- unsigned short pa_type; /* pa type. inode or group */
- spinlock_t *pa_obj_lock;
- struct inode *pa_inode; /* hack, for history only */
-};
-
enum {
MB_INODE_PA = 0,
MB_GROUP_PA = 1
};
-struct ext4_free_extent {
- ext4_lblk_t fe_logical;
- ext4_grpblk_t fe_start;
- ext4_group_t fe_group;
- int fe_len;
-};
-
/*
* Locality group:
* we try to group all related changes together
@@ -167,46 +141,6 @@ struct ext4_locality_group {
spinlock_t lg_prealloc_lock;
};
-struct ext4_allocation_context {
- struct inode *ac_inode;
- struct super_block *ac_sb;
-
- /* original request */
- struct ext4_free_extent ac_o_ex;
-
- /* goal request (after normalization) */
- struct ext4_free_extent ac_g_ex;
-
- /* the best found extent */
- struct ext4_free_extent ac_b_ex;
-
- /* copy of the bext found extent taken before preallocation efforts */
- struct ext4_free_extent ac_f_ex;
-
- /* number of iterations done. we have to track to limit searching */
- unsigned long ac_ex_scanned;
- __u16 ac_groups_scanned;
- __u16 ac_found;
- __u16 ac_tail;
- __u16 ac_buddy;
- __u16 ac_flags; /* allocation hints */
- __u8 ac_status;
- __u8 ac_criteria;
- __u8 ac_repeats;
- __u8 ac_2order; /* if request is to allocate 2^N blocks and
- * N > 0, the field stores N, otherwise 0 */
- __u8 ac_op; /* operation, for history only */
- struct page *ac_bitmap_page;
- struct page *ac_buddy_page;
- /*
- * pointer to the held semaphore upon successful
- * block allocation
- */
- struct rw_semaphore *alloc_semp;
- struct ext4_prealloc_space *ac_pa;
- struct ext4_locality_group *ac_lg;
-};
-
#define AC_STATUS_CONTINUE 1
#define AC_STATUS_FOUND 2
#define AC_STATUS_BREAK 3
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 2958f4e..9b77dd1 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -36,9 +36,9 @@
#include <linux/seq_file.h>
#include <linux/proc_fs.h>
#include <linux/ctype.h>
-#include <linux/marker.h>
#include <linux/log2.h>
#include <linux/crc16.h>
+#include <trace/ext4.h>
#include <asm/uaccess.h>
#include "ext4.h"
@@ -48,6 +48,8 @@
#include "namei.h"
#include "group.h"
+DEFINE_TRACE(ext4_sync_fs);
+
struct proc_dir_entry *ext4_proc_root;
static struct kset *ext4_kset;
@@ -3287,7 +3289,7 @@ static int ext4_sync_fs(struct super_block *sb, int wait)
int ret = 0;
tid_t target;
- trace_mark(ext4_sync_fs, "dev %s wait %d", sb->s_id, wait);
+ trace_ext4_sync_fs(sb, wait);
sb->s_dirt = 0;
if (EXT4_SB(sb)->s_journal) {
if (jbd2_journal_start_commit(EXT4_SB(sb)->s_journal,
diff --git a/include/linux/ext4_trace_types.h b/include/linux/ext4_trace_types.h
new file mode 100644
index 0000000..229a2dd
--- /dev/null
+++ b/include/linux/ext4_trace_types.h
@@ -0,0 +1,108 @@
+/*
+ * ext4_trace_types.h -- these data structures are needed by the
+ * tracing infrastructure
+ */
+
+#ifndef _EXT4_TRACE_TYPES_H
+#define _EXT4_TRACE_TYPES_H
+
+/* data type for block offset of block group */
+typedef int ext4_grpblk_t;
+
+/* data type for filesystem-wide blocks number */
+typedef unsigned long long ext4_fsblk_t;
+
+/* data type for file logical block number */
+typedef __u32 ext4_lblk_t;
+
+/* data type for block group number */
+typedef unsigned int ext4_group_t;
+
+struct ext4_allocation_request {
+ /* target inode for block we're allocating */
+ struct inode *inode;
+ /* logical block in target inode */
+ ext4_lblk_t logical;
+ /* phys. target (a hint) */
+ ext4_fsblk_t goal;
+ /* the closest logical allocated block to the left */
+ ext4_lblk_t lleft;
+ /* phys. block for ^^^ */
+ ext4_fsblk_t pleft;
+ /* the closest logical allocated block to the right */
+ ext4_lblk_t lright;
+ /* phys. block for ^^^ */
+ ext4_fsblk_t pright;
+ /* how many blocks we want to allocate */
+ unsigned int len;
+ /* flags. see above EXT4_MB_HINT_* */
+ unsigned int flags;
+};
+
+struct ext4_free_extent {
+ ext4_lblk_t fe_logical;
+ ext4_grpblk_t fe_start;
+ ext4_group_t fe_group;
+ int fe_len;
+};
+
+struct ext4_allocation_context {
+ struct inode *ac_inode;
+ struct super_block *ac_sb;
+
+ /* original request */
+ struct ext4_free_extent ac_o_ex;
+
+ /* goal request (after normalization) */
+ struct ext4_free_extent ac_g_ex;
+
+ /* the best found extent */
+ struct ext4_free_extent ac_b_ex;
+
+ /* copy of the bext found extent taken before preallocation efforts */
+ struct ext4_free_extent ac_f_ex;
+
+ /* number of iterations done. we have to track to limit searching */
+ unsigned long ac_ex_scanned;
+ __u16 ac_groups_scanned;
+ __u16 ac_found;
+ __u16 ac_tail;
+ __u16 ac_buddy;
+ __u16 ac_flags; /* allocation hints */
+ __u8 ac_status;
+ __u8 ac_criteria;
+ __u8 ac_repeats;
+ __u8 ac_2order; /* if request is to allocate 2^N blocks and
+ * N > 0, the field stores N, otherwise 0 */
+ __u8 ac_op; /* operation, for history only */
+ struct page *ac_bitmap_page;
+ struct page *ac_buddy_page;
+ /*
+ * pointer to the held semaphore upon successful
+ * block allocation
+ */
+ struct rw_semaphore *alloc_semp;
+ struct ext4_prealloc_space *ac_pa;
+ struct ext4_locality_group *ac_lg;
+};
+
+struct ext4_prealloc_space {
+ struct list_head pa_inode_list;
+ struct list_head pa_group_list;
+ union {
+ struct list_head pa_tmp_list;
+ struct rcu_head pa_rcu;
+ } u;
+ spinlock_t pa_lock;
+ atomic_t pa_count;
+ unsigned pa_deleted;
+ ext4_fsblk_t pa_pstart; /* phys. block */
+ ext4_lblk_t pa_lstart; /* log. block */
+ unsigned short pa_len; /* len of preallocated chunk */
+ unsigned short pa_free; /* how many blocks are free */
+ unsigned short pa_type; /* pa type. inode or group */
+ spinlock_t *pa_obj_lock;
+ struct inode *pa_inode; /* hack, for history only */
+};
+
+#endif /* _EXT4_TRACE_TYPES_H */
diff --git a/include/trace/ext4.h b/include/trace/ext4.h
new file mode 100644
index 0000000..e8d647a
--- /dev/null
+++ b/include/trace/ext4.h
@@ -0,0 +1,8 @@
+#ifndef _TRACE_EXT4_H
+#define _TRACE_EXT4_H
+
+#include <linux/tracepoint.h>
+
+#include <trace/ext4_event_types.h>
+
+#endif
diff --git a/include/trace/ext4_event_types.h b/include/trace/ext4_event_types.h
new file mode 100644
index 0000000..da9e5f4
--- /dev/null
+++ b/include/trace/ext4_event_types.h
@@ -0,0 +1,690 @@
+
+/* use <trace/ext4.h> instead */
+#ifndef TRACE_EVENT
+# error Do not include this file directly.
+# error Unless you know what you are doing.
+#endif
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM ext4
+
+#include <linux/writeback.h>
+#include <linux/ext4_trace_types.h>
+
+TRACE_EVENT(ext4_free_inode,
+ TP_PROTO(struct inode *inode),
+
+ TP_ARGS(inode),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( umode_t, mode )
+ __field( uid_t, uid )
+ __field( gid_t, gid )
+ __field( blkcnt_t, blocks )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, inode->i_sb->s_id, 32);
+ __entry->ino = inode->i_ino;
+ __entry->mode = inode->i_mode;
+ __entry->uid = inode->i_uid;
+ __entry->gid = inode->i_gid;
+ __entry->blocks = inode->i_blocks;
+ ),
+
+ TP_printk("dev %s ino %lu mode %d uid %u gid %u blocks %llu",
+ __entry->devname, __entry->ino, __entry->mode,
+ __entry->uid, __entry->gid, __entry->blocks)
+);
+
+TRACE_EVENT(ext4_request_inode,
+ TP_PROTO(struct inode *dir, int mode),
+
+ TP_ARGS(dir, mode),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, dir )
+ __field( umode_t, mode )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, dir->i_sb->s_id, 32);
+ __entry->dir = dir->i_ino;
+ __entry->mode = mode;
+ ),
+
+ TP_printk("dev %s dir %lu mode %d",
+ __entry->devname, __entry->dir, __entry->mode)
+);
+
+TRACE_EVENT(ext4_allocate_inode,
+ TP_PROTO(struct inode *inode, struct inode *dir, int mode),
+
+ TP_ARGS(inode, dir, mode),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( ino_t, dir )
+ __field( umode_t, mode )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, dir->i_sb->s_id, 32);
+ __entry->ino = inode->i_ino;
+ __entry->dir = dir->i_ino;
+ __entry->mode = mode;
+ ),
+
+ TP_printk("dev %s ino %lu dir %lu mode %d",
+ __entry->devname, __entry->ino, __entry->dir, __entry->mode)
+);
+
+TRACE_EVENT(ext4_write_begin,
+
+ TP_PROTO(struct inode *inode, loff_t pos, unsigned int len,
+ unsigned int flags),
+
+ TP_ARGS(inode, pos, len, flags),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( loff_t, pos )
+ __field( unsigned int, len )
+ __field( unsigned int, flags )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, inode->i_sb->s_id, 32);
+ __entry->ino = inode->i_ino;
+ __entry->pos = pos;
+ __entry->len = len;
+ __entry->flags = flags;
+ ),
+
+ TP_printk("dev %s ino %lu pos %llu len %u flags %u",
+ __entry->devname, __entry->ino, __entry->pos, __entry->len,
+ __entry->flags)
+);
+
+TRACE_EVENT(ext4_ordered_write_end,
+ TP_PROTO(struct inode *inode, loff_t pos, unsigned int len,
+ unsigned int copied),
+
+ TP_ARGS(inode, pos, len, copied),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( loff_t, pos )
+ __field( unsigned int, len )
+ __field( unsigned int, copied )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, inode->i_sb->s_id, 32);
+ __entry->ino = inode->i_ino;
+ __entry->pos = pos;
+ __entry->len = len;
+ __entry->copied = copied;
+ ),
+
+ TP_printk("dev %s ino %lu pos %llu len %u copied %u",
+ __entry->devname, __entry->ino, __entry->pos, __entry->len,
+ __entry->copied)
+);
+
+TRACE_EVENT(ext4_writeback_write_end,
+ TP_PROTO(struct inode *inode, loff_t pos, unsigned int len,
+ unsigned int copied),
+
+ TP_ARGS(inode, pos, len, copied),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( loff_t, pos )
+ __field( unsigned int, len )
+ __field( unsigned int, copied )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, inode->i_sb->s_id, 32);
+ __entry->ino = inode->i_ino;
+ __entry->pos = pos;
+ __entry->len = len;
+ __entry->copied = copied;
+ ),
+
+ TP_printk("dev %s ino %lu pos %llu len %u copied %u",
+ __entry->devname, __entry->ino, __entry->pos, __entry->len,
+ __entry->copied)
+);
+
+TRACE_EVENT(ext4_journalled_write_end,
+ TP_PROTO(struct inode *inode, loff_t pos, unsigned int len,
+ unsigned int copied),
+ TP_ARGS(inode, pos, len, copied),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( loff_t, pos )
+ __field( unsigned int, len )
+ __field( unsigned int, copied )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, inode->i_sb->s_id, 32);
+ __entry->ino = inode->i_ino;
+ __entry->pos = pos;
+ __entry->len = len;
+ __entry->copied = copied;
+ ),
+
+ TP_printk("dev %s ino %lu pos %llu len %u copied %u",
+ __entry->devname, __entry->ino, __entry->pos, __entry->len,
+ __entry->copied)
+);
+
+TRACE_EVENT(ext4_da_writepage,
+ TP_PROTO(struct inode *inode, struct page *page),
+
+ TP_ARGS(inode, page),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( pgoff_t, index )
+
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, inode->i_sb->s_id, 32);
+ __entry->ino = inode->i_ino;
+ __entry->index = page->index;
+ ),
+
+ TP_printk("dev %s ino %lu page_index %lu",
+ __entry->devname, __entry->ino, __entry->index)
+);
+
+TRACE_EVENT(ext4_da_writepages,
+ TP_PROTO(struct inode *inode, struct writeback_control *wbc),
+
+ TP_ARGS(inode, wbc),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( long, nr_to_write )
+ __field( long, pages_skipped )
+ __field( loff_t, range_start )
+ __field( loff_t, range_end )
+ __field( char, nonblocking )
+ __field( char, for_kupdate )
+ __field( char, for_reclaim )
+ __field( char, for_writepages )
+ __field( char, range_cyclic )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, inode->i_sb->s_id, 32);
+ __entry->ino = inode->i_ino;
+ __entry->nr_to_write = wbc->nr_to_write;
+ __entry->pages_skipped = wbc->pages_skipped;
+ __entry->range_start = wbc->range_start;
+ __entry->range_end = wbc->range_end;
+ __entry->nonblocking = wbc->nonblocking;
+ __entry->for_kupdate = wbc->for_kupdate;
+ __entry->for_reclaim = wbc->for_reclaim;
+ __entry->for_writepages = wbc->for_writepages;
+ __entry->range_cyclic = wbc->range_cyclic;
+ ),
+
+ TP_printk("dev %s ino %lu nr_t_write %ld pages_skipped %ld range_start %llu range_end %llu nonblocking %d for_kupdate %d for_reclaim %d for_writepages %d range_cyclic %d",
+ __entry->devname, __entry->ino, __entry->nr_to_write,
+ __entry->pages_skipped, __entry->range_start,
+ __entry->range_end, __entry->nonblocking,
+ __entry->for_kupdate, __entry->for_reclaim,
+ __entry->for_writepages, __entry->range_cyclic)
+);
+
+TRACE_EVENT(ext4_da_writepages_result,
+ TP_PROTO(struct inode *inode, struct writeback_control *wbc,
+ int ret, int pages_written),
+
+ TP_ARGS(inode, wbc, ret, pages_written),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( int, ret )
+ __field( int, pages_written )
+ __field( long, pages_skipped )
+ __field( char, encountered_congestion )
+ __field( char, more_io )
+ __field( char, no_nrwrite_index_update )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, inode->i_sb->s_id, 32);
+ __entry->ino = inode->i_ino;
+ __entry->ret = ret;
+ __entry->pages_written = pages_written;
+ __entry->pages_skipped = wbc->pages_skipped;
+ __entry->encountered_congestion = wbc->encountered_congestion;
+ __entry->more_io = wbc->more_io;
+ __entry->no_nrwrite_index_update = wbc->no_nrwrite_index_update;
+ ),
+
+ TP_printk("dev %s ino %lu ret %d pages_written %d pages_skipped %ld congestion %d more_io %d no_nrwrite_index_update %d",
+ __entry->devname, __entry->ino, __entry->ret,
+ __entry->pages_written, __entry->pages_skipped,
+ __entry->encountered_congestion, __entry->more_io,
+ __entry->no_nrwrite_index_update)
+);
+
+TRACE_EVENT(ext4_da_write_begin,
+ TP_PROTO(struct inode *inode, loff_t pos, unsigned int len,
+ unsigned int flags),
+
+ TP_ARGS(inode, pos, len, flags),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( loff_t, pos )
+ __field( unsigned int, len )
+ __field( unsigned int, flags )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, inode->i_sb->s_id, 32);
+ __entry->ino = inode->i_ino;
+ __entry->pos = pos;
+ __entry->len = len;
+ __entry->flags = flags;
+ ),
+
+ TP_printk("dev %s ino %lu pos %llu len %u flags %u",
+ __entry->devname, __entry->ino, __entry->pos, __entry->len,
+ __entry->flags)
+);
+
+TRACE_EVENT(ext4_da_write_end,
+ TP_PROTO(struct inode *inode, loff_t pos, unsigned int len,
+ unsigned int copied),
+
+ TP_ARGS(inode, pos, len, copied),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( loff_t, pos )
+ __field( unsigned int, len )
+ __field( unsigned int, copied )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, inode->i_sb->s_id, 32);
+ __entry->ino = inode->i_ino;
+ __entry->pos = pos;
+ __entry->len = len;
+ __entry->copied = copied;
+ ),
+
+ TP_printk("dev %s ino %lu pos %llu len %u copied %u",
+ __entry->devname, __entry->ino, __entry->pos, __entry->len,
+ __entry->copied)
+);
+
+TRACE_EVENT(ext4_normal_writepage,
+ TP_PROTO(struct inode *inode, struct page *page),
+
+ TP_ARGS(inode, page),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( pgoff_t, index )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, inode->i_sb->s_id, 32);
+ __entry->ino = inode->i_ino;
+ __entry->index = page->index;
+ ),
+
+ TP_printk("dev %s ino %lu page_index %lu",
+ __entry->devname, __entry->ino, __entry->index)
+);
+
+TRACE_EVENT(ext4_journalled_writepage,
+ TP_PROTO(struct inode *inode, struct page *page),
+
+ TP_ARGS(inode, page),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( pgoff_t, index )
+
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, inode->i_sb->s_id, 32);
+ __entry->ino = inode->i_ino;
+ __entry->index = page->index;
+ ),
+
+ TP_printk("dev %s ino %lu page_index %lu",
+ __entry->devname, __entry->ino, __entry->index)
+);
+
+TRACE_EVENT(ext4_discard_blocks,
+ TP_PROTO(struct super_block *sb, unsigned long long blk,
+ unsigned long long count),
+
+ TP_ARGS(sb, blk, count),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( __u64, blk )
+ __field( __u64, count )
+
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, sb->s_id, 32);
+ __entry->blk = blk;
+ __entry->count = count;
+ ),
+
+ TP_printk("dev %s blk %llu count %llu",
+ __entry->devname, __entry->blk, __entry->count)
+);
+
+TRACE_EVENT(ext4_mb_new_inode_pa,
+ TP_PROTO(struct ext4_allocation_context *ac,
+ struct ext4_prealloc_space *pa),
+
+ TP_ARGS(ac, pa),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( __u64, pa_pstart )
+ __field( __u32, pa_len )
+ __field( __u64, pa_lstart )
+
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, ac->ac_sb->s_id, 32);
+ __entry->ino = ac->ac_inode->i_ino;
+ __entry->pa_pstart = pa->pa_pstart;
+ __entry->pa_len = pa->pa_len;
+ __entry->pa_lstart = pa->pa_lstart;
+ ),
+
+ TP_printk("dev %s ino %lu pstart %llu len %u lstart %llu",
+ __entry->devname, __entry->ino, __entry->pa_pstart,
+ __entry->pa_len, __entry->pa_lstart)
+);
+
+TRACE_EVENT(ext4_mb_new_group_pa,
+ TP_PROTO(struct ext4_allocation_context *ac,
+ struct ext4_prealloc_space *pa),
+
+ TP_ARGS(ac, pa),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( __u64, pa_pstart )
+ __field( __u32, pa_len )
+ __field( __u64, pa_lstart )
+
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, ac->ac_sb->s_id, 32);
+ __entry->ino = ac->ac_inode->i_ino;
+ __entry->pa_pstart = pa->pa_pstart;
+ __entry->pa_len = pa->pa_len;
+ __entry->pa_lstart = pa->pa_lstart;
+ ),
+
+ TP_printk("dev %s ino %lu pstart %llu len %u lstart %llu",
+ __entry->devname, __entry->ino, __entry->pa_pstart,
+ __entry->pa_len, __entry->pa_lstart)
+);
+
+TRACE_EVENT(ext4_mb_release_inode_pa,
+ TP_PROTO(struct ext4_allocation_context *ac,
+ struct ext4_prealloc_space *pa,
+ unsigned long long block, unsigned int count),
+
+ TP_ARGS(ac, pa, block, count),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( __u64, block )
+ __field( __u32, count )
+
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, ac->ac_sb->s_id, 32);
+ __entry->ino = ac->ac_inode->i_ino;
+ __entry->block = block;
+ __entry->count = count;
+ ),
+
+ TP_printk("dev %s ino %lu block %llu count %u",
+ __entry->devname, __entry->ino, __entry->block,
+ __entry->count)
+);
+
+TRACE_EVENT(ext4_mb_release_group_pa,
+ TP_PROTO(struct ext4_allocation_context *ac,
+ struct ext4_prealloc_space *pa),
+
+ TP_ARGS(ac, pa),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( __u64, pa_pstart )
+ __field( __u32, pa_len )
+
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, ac->ac_sb->s_id, 32);
+ __entry->ino = ac->ac_inode->i_ino;
+ __entry->pa_pstart = pa->pa_pstart;
+ __entry->pa_len = pa->pa_len;
+ ),
+
+ TP_printk("dev %s pstart %llu len %u",
+ __entry->devname, __entry->pa_pstart, __entry->pa_len)
+);
+
+TRACE_EVENT(ext4_discard_preallocations,
+ TP_PROTO(struct inode *inode),
+
+ TP_ARGS(inode),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, inode->i_sb->s_id, 32);
+ __entry->ino = inode->i_ino;
+ ),
+
+ TP_printk("dev %s ino %lu",
+ __entry->devname, __entry->ino)
+);
+
+TRACE_EVENT(ext4_mb_discard_preallocations,
+ TP_PROTO(struct super_block *sb, int needed),
+
+ TP_ARGS(sb, needed),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( int, needed )
+
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, sb->s_id, 32);
+ __entry->needed = needed;
+ ),
+
+ TP_printk("dev %s needed %d",
+ __entry->devname, __entry->needed)
+);
+
+TRACE_EVENT(ext4_request_blocks,
+ TP_PROTO(struct ext4_allocation_request *ar),
+
+ TP_ARGS(ar),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( struct ext4_allocation_request, ar )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, ar->inode->i_sb->s_id, 32);
+ __entry->ino = ar->inode->i_ino;
+ __entry->ar = *ar;
+ ),
+
+ TP_printk("dev %s ino %lu flags %u len %u lblk %llu goal %llu lleft %llu lright %llu pleft %llu pright %llu ",
+ __entry->devname, __entry->ino, __entry->ar.flags,
+ __entry->ar.len,
+ (unsigned long long) __entry->ar.logical,
+ (unsigned long long) __entry->ar.goal,
+ (unsigned long long) __entry->ar.lleft,
+ (unsigned long long) __entry->ar.lright,
+ (unsigned long long) __entry->ar.pleft,
+ (unsigned long long) __entry->ar.pright)
+);
+
+TRACE_EVENT(ext4_allocate_blocks,
+ TP_PROTO(struct ext4_allocation_request *ar, unsigned long long block),
+
+ TP_ARGS(ar, block),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( __u64, block )
+ __field( struct ext4_allocation_request, ar )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, ar->inode->i_sb->s_id, 32);
+ __entry->ino = ar->inode->i_ino;
+ __entry->block = block;
+ __entry->ar = *ar;
+ ),
+
+ TP_printk("dev %s ino %lu flags %u len %u block %llu lblk %llu goal %llu lleft %llu lright %llu pleft %llu pright %llu ",
+ __entry->devname, __entry->ino, __entry->ar.flags,
+ __entry->ar.len, __entry->block,
+ (unsigned long long) __entry->ar.logical,
+ (unsigned long long) __entry->ar.goal,
+ (unsigned long long) __entry->ar.lleft,
+ (unsigned long long) __entry->ar.lright,
+ (unsigned long long) __entry->ar.pleft,
+ (unsigned long long) __entry->ar.pright)
+);
+
+TRACE_EVENT(ext4_free_blocks,
+ TP_PROTO(struct inode *inode, __u64 block, unsigned long count,
+ int metadata),
+
+ TP_ARGS(inode, block, count, metadata),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( __u64, block )
+ __field( unsigned long, count )
+ __field( int, metadata )
+
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, inode->i_sb->s_id, 32);
+ __entry->ino = inode->i_ino;
+ __entry->block = block;
+ __entry->count = count;
+ __entry->metadata = metadata;
+ ),
+
+ TP_printk("dev %s ino %lu block %llu count %lu metadata %d",
+ __entry->devname, __entry->ino, __entry->block,
+ __entry->count, __entry->metadata)
+);
+
+TRACE_EVENT(ext4_sync_file,
+ TP_PROTO(struct file *file, struct dentry *dentry, int datasync),
+
+ TP_ARGS(file, dentry, datasync),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( ino_t, ino )
+ __field( ino_t, parent )
+ __field( int, datasync )
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, dentry->d_inode->i_sb->s_id, 32);
+ __entry->ino = dentry->d_inode->i_ino;
+ __entry->datasync = datasync;
+ __entry->parent = dentry->d_parent->d_inode->i_ino;
+ ),
+
+ TP_printk("dev %s ino %ld parent %ld datasync %d ",
+ __entry->devname, __entry->ino, __entry->parent,
+ __entry->datasync)
+);
+
+TRACE_EVENT(ext4_sync_fs,
+ TP_PROTO(struct super_block *sb, int wait),
+
+ TP_ARGS(sb, wait),
+
+ TP_STRUCT__entry(
+ __array( char, devname, 32 )
+ __field( int, wait )
+
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->devname, sb->s_id, 32);
+ __entry->wait = wait;
+ ),
+
+ TP_printk("dev %s wait %d", __entry->devname, __entry->wait)
+);
+
+
+#undef TRACE_SYSTEM
diff --git a/include/trace/trace_event_types.h b/include/trace/trace_event_types.h
index bd26f4d..26d7aee 100644
--- a/include/trace/trace_event_types.h
+++ b/include/trace/trace_event_types.h
@@ -4,3 +4,4 @@
#include <trace/irq_event_types.h>
#include <trace/lockdep_event_types.h>
#include <trace/jbd2_event_types.h>
+#include <trace/ext4_event_types.h>
diff --git a/include/trace/trace_events.h b/include/trace/trace_events.h
index 2a9b970..ad8f6eb 100644
--- a/include/trace/trace_events.h
+++ b/include/trace/trace_events.h
@@ -4,3 +4,4 @@
#include <trace/irq.h>
#include <trace/lockdep.h>
#include <trace/jbd2.h>
+#include <trace/ext4.h>
--
1.5.6.3
--
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