From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Jaegeuk Kim <jaegeuk@kernel.org>, Chao Yu <yuchao0@huawei.com>,
Sasha Levin <sashal@kernel.org>,
linux-f2fs-devel@lists.sourceforge.net
Subject: [PATCH AUTOSEL 5.2 14/59] f2fs: fix to read source block before invalidating it
Date: Tue, 6 Aug 2019 17:32:34 -0400 [thread overview]
Message-ID: <20190806213319.19203-14-sashal@kernel.org> (raw)
In-Reply-To: <20190806213319.19203-1-sashal@kernel.org>
From: Jaegeuk Kim <jaegeuk@kernel.org>
[ Upstream commit 543b8c468f55f27f3c0178a22a91a51aabbbc428 ]
f2fs_allocate_data_block() invalidates old block address and enable new block
address. Then, if we try to read old block by f2fs_submit_page_bio(), it will
give WARN due to reading invalid blocks.
Let's make the order sanely back.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/f2fs/gc.c | 70 +++++++++++++++++++++++++---------------------------
1 file changed, 34 insertions(+), 36 deletions(-)
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 963fb4571fd98..bb6fd5a506d39 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -794,6 +794,29 @@ static int move_data_block(struct inode *inode, block_t bidx,
if (lfs_mode)
down_write(&fio.sbi->io_order_lock);
+ mpage = f2fs_grab_cache_page(META_MAPPING(fio.sbi),
+ fio.old_blkaddr, false);
+ if (!mpage)
+ goto up_out;
+
+ fio.encrypted_page = mpage;
+
+ /* read source block in mpage */
+ if (!PageUptodate(mpage)) {
+ err = f2fs_submit_page_bio(&fio);
+ if (err) {
+ f2fs_put_page(mpage, 1);
+ goto up_out;
+ }
+ lock_page(mpage);
+ if (unlikely(mpage->mapping != META_MAPPING(fio.sbi) ||
+ !PageUptodate(mpage))) {
+ err = -EIO;
+ f2fs_put_page(mpage, 1);
+ goto up_out;
+ }
+ }
+
f2fs_allocate_data_block(fio.sbi, NULL, fio.old_blkaddr, &newaddr,
&sum, CURSEG_COLD_DATA, NULL, false);
@@ -801,44 +824,18 @@ static int move_data_block(struct inode *inode, block_t bidx,
newaddr, FGP_LOCK | FGP_CREAT, GFP_NOFS);
if (!fio.encrypted_page) {
err = -ENOMEM;
- goto recover_block;
- }
-
- mpage = f2fs_pagecache_get_page(META_MAPPING(fio.sbi),
- fio.old_blkaddr, FGP_LOCK, GFP_NOFS);
- if (mpage) {
- bool updated = false;
-
- if (PageUptodate(mpage)) {
- memcpy(page_address(fio.encrypted_page),
- page_address(mpage), PAGE_SIZE);
- updated = true;
- }
f2fs_put_page(mpage, 1);
- invalidate_mapping_pages(META_MAPPING(fio.sbi),
- fio.old_blkaddr, fio.old_blkaddr);
- if (updated)
- goto write_page;
- }
-
- err = f2fs_submit_page_bio(&fio);
- if (err)
- goto put_page_out;
-
- /* write page */
- lock_page(fio.encrypted_page);
-
- if (unlikely(fio.encrypted_page->mapping != META_MAPPING(fio.sbi))) {
- err = -EIO;
- goto put_page_out;
- }
- if (unlikely(!PageUptodate(fio.encrypted_page))) {
- err = -EIO;
- goto put_page_out;
+ goto recover_block;
}
-write_page:
+ /* write target block */
f2fs_wait_on_page_writeback(fio.encrypted_page, DATA, true, true);
+ memcpy(page_address(fio.encrypted_page),
+ page_address(mpage), PAGE_SIZE);
+ f2fs_put_page(mpage, 1);
+ invalidate_mapping_pages(META_MAPPING(fio.sbi),
+ fio.old_blkaddr, fio.old_blkaddr);
+
set_page_dirty(fio.encrypted_page);
if (clear_page_dirty_for_io(fio.encrypted_page))
dec_page_count(fio.sbi, F2FS_DIRTY_META);
@@ -869,11 +866,12 @@ static int move_data_block(struct inode *inode, block_t bidx,
put_page_out:
f2fs_put_page(fio.encrypted_page, 1);
recover_block:
- if (lfs_mode)
- up_write(&fio.sbi->io_order_lock);
if (err)
f2fs_do_replace_block(fio.sbi, &sum, newaddr, fio.old_blkaddr,
true, true);
+up_out:
+ if (lfs_mode)
+ up_write(&fio.sbi->io_order_lock);
put_out:
f2fs_put_dnode(&dn);
out:
--
2.20.1
next prev parent reply other threads:[~2019-08-06 21:33 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-06 21:32 [PATCH AUTOSEL 5.2 01/59] RDMA/hns: Fix sg offset non-zero issue Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 02/59] IB/mlx5: Replace kfree with kvfree Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 03/59] clk: at91: generated: Truncate divisor to GENERATED_MAX_DIV + 1 Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 04/59] clk: sprd: Select REGMAP_MMIO to avoid compile errors Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 05/59] clk: renesas: cpg-mssr: Fix reset control race condition Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 06/59] dma-mapping: check pfn validity in dma_common_{mmap,get_sgtable} Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 07/59] xtensa: fix build for cores with coprocessors Sasha Levin
2019-08-06 21:55 ` Max Filippov
2019-08-18 1:45 ` Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 08/59] platform/x86: pcengines-apuv2: Fix softdep statement Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 09/59] platform/x86: intel_pmc_core: Add ICL-NNPI support to PMC Core Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 10/59] mm/hmm: always return EBUSY for invalid ranges in hmm_range_{fault,snapshot} Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 11/59] xen/pciback: remove set but not used variable 'old_state' Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 12/59] irqchip/gic-v3-its: Free unused vpt_page when alloc vpe table fail Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 13/59] irqchip/irq-imx-gpcv2: Forward irq type to parent Sasha Levin
2019-08-06 21:32 ` Sasha Levin [this message]
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 15/59] tools perf beauty: Fix usbdevfs_ioctl table generator to handle _IOC() Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 16/59] perf header: Fix divide by zero error if f_header.attr_size==0 Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 17/59] perf header: Fix use of unitialized value warning Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 18/59] RDMA/qedr: Fix the hca_type and hca_rev returned in device attributes Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 19/59] ALSA: pcm: fix lost wakeup event scenarios in snd_pcm_drain Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 20/59] libata: zpodd: Fix small read overflow in zpodd_get_mech_type() Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 21/59] powerpc/nvdimm: Pick nearby online node if the device node is not online Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 22/59] drm/bridge: lvds-encoder: Fix build error while CONFIG_DRM_KMS_HELPER=m Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 23/59] drm/bridge: tc358764: Fix build error Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 24/59] Btrfs: fix deadlock between fiemap and transaction commits Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 25/59] scsi: hpsa: correct scsi command status issue after reset Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 26/59] scsi: qla2xxx: Fix possible fcport null-pointer dereferences Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 27/59] exit: make setting exit_state consistent Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 28/59] tracing: Fix header include guards in trace event headers Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 29/59] drm/amdkfd: Fix byte align on VegaM Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 30/59] drm/amd/powerplay: fix null pointer dereference around dpm state relates Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 31/59] drm/amdgpu: fix error handling in amdgpu_cs_process_fence_dep Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 32/59] drm/amdgpu: fix a potential information leaking bug Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 33/59] ata: libahci: do not complain in case of deferred probe Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 34/59] kbuild: modpost: handle KBUILD_EXTRA_SYMBOLS only for external modules Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 35/59] kbuild: Check for unknown options with cc-option usage in Kconfig and clang Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 36/59] arm64/efi: fix variable 'si' set but not used Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 37/59] drm/vgem: fix cache synchronization on arm/arm64 Sasha Levin
2019-08-06 22:45 ` Rob Clark
2019-08-18 1:45 ` Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 38/59] riscv: Fix perf record without libelf support Sasha Levin
2019-08-06 21:32 ` [PATCH AUTOSEL 5.2 39/59] i2c: iproc: Fix i2c master read more than 63 bytes Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 40/59] arm64: Lower priority mask for GIC_PRIO_IRQON Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 41/59] arm64: unwind: Prohibit probing on return_address() Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 42/59] arm64/mm: fix variable 'pud' set but not used Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 43/59] arm64/mm: fix variable 'tag' " Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 44/59] IB/core: Add mitigation for Spectre V1 Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 45/59] IB/mlx5: Fix MR registration flow to use UMR properly Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 46/59] RDMA/restrack: Track driver QP types in resource tracker Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 47/59] IB/mad: Fix use-after-free in ib mad completion handling Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 48/59] RDMA/mlx5: Release locks during notifier unregister Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 49/59] drm: msm: Fix add_gpu_components Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 50/59] RDMA/hns: Fix error return code in hns_roce_v1_rsv_lp_qp() Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 51/59] drm/exynos: fix missing decrement of retry counter Sasha Levin
2019-08-07 8:49 ` David Laight
2019-08-18 1:47 ` Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 52/59] arm64: kprobes: Recover pstate.D in single-step exception handler Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 53/59] arm64: Make debug exception handlers visible from RCU Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 54/59] Revert "kmemleak: allow to coexist with fault injection" Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 55/59] ocfs2: remove set but not used variable 'last_hash' Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 56/59] page flags: prioritize kasan bits over last-cpuid Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 57/59] coredump: split pipe command whitespace before expanding template Sasha Levin
2019-08-07 1:41 ` Paul Wise
2019-08-18 1:48 ` Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 58/59] asm-generic: fix -Wtype-limits compiler warnings Sasha Levin
2019-08-06 21:33 ` [PATCH AUTOSEL 5.2 59/59] tpm: tpm_ibm_vtpm: Fix unallocated banks Sasha Levin
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