From: Theodore Ts'o Subject: [PATCH, RFC 2/2] ext4: Convert instrumentation from markers to tracepoints Date: Sat, 11 Apr 2009 15:46:07 -0400 Message-ID: <1239479167-804-2-git-send-email-tytso@mit.edu> References: <1239479167-804-1-git-send-email-tytso@mit.edu> Cc: Theodore Ts'o To: Ext4 Developers List Return-path: Received: from thunk.org ([69.25.196.29]:55363 "EHLO thunker.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758502AbZDKU3y (ORCPT ); Sat, 11 Apr 2009 16:29:54 -0400 In-Reply-To: <1239479167-804-1-git-send-email-tytso@mit.edu> Sender: linux-ext4-owner@vger.kernel.org List-ID: Signed-off-by: "Theodore Ts'o" --- 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 #include #include +#include #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 #include -/* 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 #include #include -#include +#include #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 #include #include +#include #include #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 #include #include +#include #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 #include #include -#include #include +#include #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 #include #include -#include #include #include +#include #include #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 + +#include + +#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 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 +#include + +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 #include #include +#include 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 #include #include +#include -- 1.5.6.3