linux.git/include/trace/events/f2fs.h, branch v4.13

f2fs: split bio cache

2017-05-24T04:05:39+00:00

Split DATA/NODE type bio cache according to different temperature,
so write IOs with the same temperature can be merged in corresponding
bio cache as much as possible, otherwise, different temperature write
IOs submitting into one bio cache will always cause split of bio.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: remove unnecessary read cases in merged IO flow

2017-05-24T04:05:37+00:00

Merged IO flow doesn't need to care about read IOs.

f2fs_submit_merged_bio -> f2fs_submit_merged_write
f2fs_submit_merged_bios -> f2fs_submit_merged_writes
f2fs_submit_merged_bio_cond -> f2fs_submit_merged_write_cond

Signed-off-by: Jaegeuk Kim

f2fs: enhance scalability of trace macro

2017-05-04T02:00:29+00:00

Use __print_flags in show_bio_op_flags and show_cpreason instead of
__print_symbolic, it enables tracer function traverses and shows all
bits in the flag.

Additionally, add missing REQ_FUA into F2FS_OP_FLAGS.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: introduce CP_TRIMMED_FLAG to avoid unneeded discard

2017-05-03T17:04:56+00:00

Introduce CP_TRIMMED_FLAG to indicate all invalid block were trimmed
before umount, so once we do mount with image which contain the flag,
we don't record invalid blocks as undiscard one, when fstrim is being
triggered, we can avoid issuing redundant discard commands.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: trace __submit_discard_cmd

2017-04-19T18:00:43+00:00

Add an even class f2fs_discard for introducing f2fs_queue_discard, then
use f2fs_{queue,issue}_discard to trace __{queue,submit}_discard_cmd.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: add missing INMEM_REVOKE trace enum definition

2017-03-22T02:34:35+00:00

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: make sure trace all f2fs_issue_flush

2017-03-22T02:34:19+00:00

The root device's issue flush trace is missing,
add it and tracing the result from submit.

Fixes d50aaeec90 ("f2fs: show actual device info in tracepoints")
Signed-off-by: Kinglong Mee 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: fix stale ATOMIC_WRITTEN_PAGE private pointer

2017-03-22T02:34:10+00:00

When I forced to enable atomic operations intentionally, I could hit the below
panic, since we didn't clear page->private in f2fs_invalidate_page called by
file truncation.

The panic occurs due to NULL mapping having page->private.

BUG: unable to handle kernel paging request at ffffffffffffffff
IP: drop_buffers+0x38/0xe0
PGD 5d00c067
PUD 5d00e067
PMD 0
CPU: 3 PID: 1648 Comm: fsstress Tainted: G      D    OE   4.10.0+ #5
Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
task: ffff9151952863c0 task.stack: ffffaaec40db4000
RIP: 0010:drop_buffers+0x38/0xe0
RSP: 0018:ffffaaec40db74c8 EFLAGS: 00010292
Call Trace:
 ? page_referenced+0x8b/0x170
 try_to_free_buffers+0xc5/0xe0
 try_to_release_page+0x49/0x50
 shrink_page_list+0x8bc/0x9f0
 shrink_inactive_list+0x1dd/0x500
 ? shrink_active_list+0x2c0/0x430
 shrink_node_memcg+0x5eb/0x7c0
 shrink_node+0xe1/0x320
 do_try_to_free_pages+0xef/0x2e0
 try_to_free_pages+0xe9/0x190
 __alloc_pages_slowpath+0x390/0xe70
 __alloc_pages_nodemask+0x291/0x2b0
 alloc_pages_current+0x95/0x140
 __page_cache_alloc+0xc4/0xe0
 pagecache_get_page+0xab/0x2a0
 grab_cache_page_write_begin+0x20/0x40
 get_read_data_page+0x2e6/0x4c0 [f2fs]
 ? f2fs_mark_inode_dirty_sync+0x16/0x30 [f2fs]
 ? truncate_data_blocks_range+0x238/0x2b0 [f2fs]
 get_lock_data_page+0x30/0x190 [f2fs]
 __exchange_data_block+0xaaf/0xf40 [f2fs]
 f2fs_fallocate+0x418/0xd00 [f2fs]
 vfs_fallocate+0x157/0x220
 SyS_fallocate+0x48/0x80

Signed-off-by: Yunlei He 
Signed-off-by: Chao Yu 
[Chao Yu: use INMEM_INVALIDATE for better tracing]
Signed-off-by: Jaegeuk Kim

f2fs: add f2fs_drop_inode tracepoint

2017-02-27T18:51:20+00:00

Signed-off-by: Hou Pengyang 
Signed-off-by: Jaegeuk Kim

f2fs: trace victim's cost selectecd by f2fs_gc

2017-02-23T19:23:26+00:00

This patch adds min_cost of each victims.

Signed-off-by: Jaegeuk Kim