Chao Yu 28bc106b23 f2fs: support revoking atomic written pages ... f2fs support atomic write with following semantics: 1. open db file 2. ioctl start atomic write 3. (write db file) * n 4. ioctl commit atomic write 5. close db file With this flow we can avoid file becoming corrupted when abnormal power cut, because we hold data of transaction in referenced pages linked in inmem_pages list of inode, but without setting them dirty, so these data won't be persisted unless we commit them in step 4. But we should still hold journal db file in memory by using volatile write, because our semantics of 'atomic write support' is incomplete, in step 4, we could fail to submit all dirty data of transaction, once partial dirty data was committed in storage, then after a checkpoint & abnormal power-cut, db file will be corrupted forever. So this patch tries to improve atomic write flow by adding a revoking flow, once inner error occurs in committing, this gives another chance to try to revoke these partial submitted data of current transaction, it makes committing operation more like aotmical one. If we're not lucky, once revoking operation was failed, EAGAIN will be reported to user for suggesting doing the recovery with held journal file, or retrying current transaction again. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>		2016-02-22 16:07:23 -08:00
..
9p.h	net/9p/tracing: Export enums in tracepoints to userspace	2015-04-08 09:39:59 -04:00
asoc.h	ASoC: dapm: Consolidate path trace events	2015-08-13 12:40:16 +01:00
bcache.h	bcache: fix crash in bcache_btree_node_alloc_fail tracepoint	2014-08-04 15:23:03 -07:00
block.h	blktrace: fix accounting of partially completed requests	2014-03-05 16:11:21 -07:00
btrfs.h	Merge branch 'freespace-tree' into for-linus-4.5	2015-12-18 11:11:10 -08:00
clk.h	clk: Add tracepoints for hardware operations	2015-03-12 12:18:51 -07:00
cma.h	mm: cma: add trace events for CMA allocations and freeings	2015-04-15 16:35:19 -07:00
compaction.h	mm, compaction: distinguish contended status in tracepoints	2015-11-05 19:34:48 -08:00
context_tracking.h	context_tracking: User/kernel broundary cross trace events	2013-08-14 17:14:48 +02:00
ext4.h	ext4: implement allocation of pre-zeroed blocks	2015-12-07 15:10:26 -05:00
f2fs.h	f2fs: support revoking atomic written pages	2016-02-22 16:07:23 -08:00
fence.h	tracing/dma-buf/fence: Fix timeline str value on fence_annotate_wait_on	2016-01-25 11:03:17 -05:00
fib6.h	net: IPv6 fib lookup tracepoint	2015-11-22 11:54:10 -05:00
fib.h	net: Make table id type u32	2015-09-01 14:32:44 -07:00
filelock.h	locks: sprinkle some tracepoints around the file locking code	2016-01-08 11:38:13 -05:00
filemap.h	tracing, mm: Record pfn instead of pointer to struct page	2015-04-13 11:44:52 -03:00
gfpflags.h	mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd	2015-11-06 17:50:42 -08:00
gpio.h	tracing: gpio: Add Kconfig option for enabling/disabling trace events	2015-10-20 21:56:10 -04:00
host1x.h	gpu: host1x: Use struct host1x_bo pointers in traces	2014-11-13 16:11:32 +01:00
hswadsp.h	Merge remote-tracking branches 'asoc/topic/ml26124', 'asoc/topic/of', 'asoc/topic/omap', 'asoc/topic/pxa' and 'asoc/topic/rcar' into asoc-next	2014-03-12 23:04:35 +00:00
huge_memory.h	mm: fix kernel crash in khugepaged thread	2016-01-21 17:20:51 -08:00
i2c.h	i2c: Add message transfer tracepoints for SMBUS [ver #2]	2014-03-13 22:15:07 +01:00
intel-sst.h	tracing: Add TRACE_SYSTEM_VAR to intel-sst	2015-04-07 12:31:12 -04:00
iommu.h	iommu: Change trace unmap api to report unmapped size	2015-01-19 15:19:31 +01:00
ipi.h	tracepoint: add generic tracepoint definitions for IPI tracing	2014-08-07 20:40:40 -04:00
irq.h	irq_poll: make blk-iopoll available outside the block layer	2015-12-11 11:52:24 -08:00
jbd2.h
kmem.h	tracing/mm: don't trace mm_page_pcpu_drain on offline cpus	2015-05-28 18:25:18 -07:00
kvm.h	kvm: move new trace event outside #ifdef CONFIG_KVM_ASYNC_PF	2015-09-08 11:16:40 +02:00
libata.h	libata: Add tracepoints	2015-03-27 11:59:22 -04:00
lock.h
mce.h
migrate.h	mm: tracing: Export enums in tracepoints to user space	2015-04-08 09:40:01 -04:00
module.h	tracing: %pF is only for function pointers	2015-03-25 08:57:22 -04:00
napi.h
net.h	net: rename vlan_tx_* helpers since "tx" is misleading there	2015-01-13 17:51:08 -05:00
nilfs2.h	nilfs2: add tracepoints for analyzing reading and writing metadata files	2015-11-06 17:50:42 -08:00
nmi.h	x86: Add NMI duration tracepoints	2013-06-23 11:52:58 +02:00
oom.h
page_isolation.h	mm/page_isolation.c: add new tracepoint, test_pages_isolated	2016-01-14 16:00:49 -08:00
pagemap.h	mm: pagemap: avoid unnecessary overhead when tracepoints are deactivated	2014-08-06 18:01:20 -07:00
power_cpu_migrate.h	ARM: bL_switcher/trace: Add trace trigger for trace bootstrapping	2013-09-23 18:47:30 -04:00
power.h	This patch series contains several clean ups and even a new trace clock	2015-06-26 14:02:43 -07:00
printk.h
random.h	tracing: %pF is only for function pointers	2015-03-25 08:57:22 -04:00
rcu.h	rcu: Apply rcu_seq operations to _rcu_barrier()	2015-07-17 14:58:57 -07:00
regulator.h
rpm.h
sched.h	sched/core: Fix trace_sched_switch()	2015-10-06 17:08:15 +02:00
scsi.h	scsi: rename SERVICE_ACTION_IN to SERVICE_ACTION_IN_16	2014-11-24 20:01:40 +01:00
signal.h
skb.h
sock.h
spi.h	spi: Provide common spi_message processing loop	2013-10-11 20:09:50 +01:00
spmi.h	spmi: add command tracepoints for SPMI	2015-08-05 12:27:09 -07:00
sunrpc.h	net: sunrpc: fix tracepoint Warning: unknown op '->'	2015-08-31 16:32:15 -04:00
swiotlb.h	tracing/events: Add bounce tracing to swiotbl	2013-10-02 12:53:26 -04:00
syscalls.h	tracepoint: Fix sparse warnings in tracepoint.c	2014-04-09 10:12:11 -04:00
target.h	target: Minimize SCSI header #include directives	2015-06-02 08:03:25 -07:00
task.h	tracing: Don't make assumptions about length of string on task rename	2015-08-31 10:47:14 -04:00
thermal_power_allocator.h	thermal: consistently use int for temperatures	2015-08-03 23:15:50 +08:00
thermal.h	devfreq_cooling: add trace information	2015-10-30 10:41:38 -07:00
thp.h	powerpc/thp: Add tracepoints to track hugepage invalidate	2014-08-13 18:20:42 +10:00
timer.h	timer: Replace timer base by a cpu index	2015-06-19 15:18:27 +02:00
tlb.h	x86, mm: trace when an IPI is about to be sent	2015-09-04 16:54:41 -07:00
udp.h
v4l2.h	[media] media: videobuf2: Move timestamp to vb2_buffer	2015-12-18 13:53:31 -02:00
vb2.h	[media] media: videobuf2: Move timestamp to vb2_buffer	2015-12-18 13:53:31 -02:00
vmscan.h	mm: change mm_vmscan_lru_shrink_inactive() proto types	2016-01-14 16:00:49 -08:00
workqueue.h
writeback.h	writeback: update writeback tracepoints to report cgroup	2015-08-18 15:49:15 -07:00
xen.h	x86: expose number of page table levels on Kconfig level	2015-04-14 16:49:02 -07:00