From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Nikolay Borisov <nborisov@suse.com>,
David Sterba <dsterba@suse.com>, Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.4 64/91] btrfs: remove trivial locking wrappers of tree mod log
Date: Thu, 13 Feb 2020 07:20:21 -0800 [thread overview]
Message-ID: <20200213151847.037090188@linuxfoundation.org> (raw)
In-Reply-To: <20200213151821.384445454@linuxfoundation.org>
From: David Sterba <dsterba@suse.com>
[ Upstream commit b1a09f1ec540408abf3a50d15dff5d9506932693 ]
The wrappers are trivial and do not bring any extra value on top of the
plain locking primitives.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/btrfs/ctree.c | 58 ++++++++++++++++--------------------------------
1 file changed, 19 insertions(+), 39 deletions(-)
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 62caf3bcadf8e..f770488a0723b 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -332,26 +332,6 @@ struct tree_mod_elem {
struct tree_mod_root old_root;
};
-static inline void tree_mod_log_read_lock(struct btrfs_fs_info *fs_info)
-{
- read_lock(&fs_info->tree_mod_log_lock);
-}
-
-static inline void tree_mod_log_read_unlock(struct btrfs_fs_info *fs_info)
-{
- read_unlock(&fs_info->tree_mod_log_lock);
-}
-
-static inline void tree_mod_log_write_lock(struct btrfs_fs_info *fs_info)
-{
- write_lock(&fs_info->tree_mod_log_lock);
-}
-
-static inline void tree_mod_log_write_unlock(struct btrfs_fs_info *fs_info)
-{
- write_unlock(&fs_info->tree_mod_log_lock);
-}
-
/*
* Pull a new tree mod seq number for our operation.
*/
@@ -371,14 +351,14 @@ static inline u64 btrfs_inc_tree_mod_seq(struct btrfs_fs_info *fs_info)
u64 btrfs_get_tree_mod_seq(struct btrfs_fs_info *fs_info,
struct seq_list *elem)
{
- tree_mod_log_write_lock(fs_info);
+ write_lock(&fs_info->tree_mod_log_lock);
spin_lock(&fs_info->tree_mod_seq_lock);
if (!elem->seq) {
elem->seq = btrfs_inc_tree_mod_seq(fs_info);
list_add_tail(&elem->list, &fs_info->tree_mod_seq_list);
}
spin_unlock(&fs_info->tree_mod_seq_lock);
- tree_mod_log_write_unlock(fs_info);
+ write_unlock(&fs_info->tree_mod_log_lock);
return elem->seq;
}
@@ -420,7 +400,7 @@ void btrfs_put_tree_mod_seq(struct btrfs_fs_info *fs_info,
* anything that's lower than the lowest existing (read: blocked)
* sequence number can be removed from the tree.
*/
- tree_mod_log_write_lock(fs_info);
+ write_lock(&fs_info->tree_mod_log_lock);
tm_root = &fs_info->tree_mod_log;
for (node = rb_first(tm_root); node; node = next) {
next = rb_next(node);
@@ -430,7 +410,7 @@ void btrfs_put_tree_mod_seq(struct btrfs_fs_info *fs_info,
rb_erase(node, tm_root);
kfree(tm);
}
- tree_mod_log_write_unlock(fs_info);
+ write_unlock(&fs_info->tree_mod_log_lock);
}
/*
@@ -441,7 +421,7 @@ void btrfs_put_tree_mod_seq(struct btrfs_fs_info *fs_info,
* operations, or the shifted logical of the affected block for all other
* operations.
*
- * Note: must be called with write lock (tree_mod_log_write_lock).
+ * Note: must be called with write lock for fs_info::tree_mod_log_lock.
*/
static noinline int
__tree_mod_log_insert(struct btrfs_fs_info *fs_info, struct tree_mod_elem *tm)
@@ -481,7 +461,7 @@ __tree_mod_log_insert(struct btrfs_fs_info *fs_info, struct tree_mod_elem *tm)
* Determines if logging can be omitted. Returns 1 if it can. Otherwise, it
* returns zero with the tree_mod_log_lock acquired. The caller must hold
* this until all tree mod log insertions are recorded in the rb tree and then
- * call tree_mod_log_write_unlock() to release.
+ * write unlock fs_info::tree_mod_log_lock.
*/
static inline int tree_mod_dont_log(struct btrfs_fs_info *fs_info,
struct extent_buffer *eb) {
@@ -491,9 +471,9 @@ static inline int tree_mod_dont_log(struct btrfs_fs_info *fs_info,
if (eb && btrfs_header_level(eb) == 0)
return 1;
- tree_mod_log_write_lock(fs_info);
+ write_lock(&fs_info->tree_mod_log_lock);
if (list_empty(&(fs_info)->tree_mod_seq_list)) {
- tree_mod_log_write_unlock(fs_info);
+ write_unlock(&fs_info->tree_mod_log_lock);
return 1;
}
@@ -557,7 +537,7 @@ tree_mod_log_insert_key(struct btrfs_fs_info *fs_info,
}
ret = __tree_mod_log_insert(fs_info, tm);
- tree_mod_log_write_unlock(fs_info);
+ write_unlock(&eb->fs_info->tree_mod_log_lock);
if (ret)
kfree(tm);
@@ -621,7 +601,7 @@ tree_mod_log_insert_move(struct btrfs_fs_info *fs_info,
ret = __tree_mod_log_insert(fs_info, tm);
if (ret)
goto free_tms;
- tree_mod_log_write_unlock(fs_info);
+ write_unlock(&eb->fs_info->tree_mod_log_lock);
kfree(tm_list);
return 0;
@@ -632,7 +612,7 @@ tree_mod_log_insert_move(struct btrfs_fs_info *fs_info,
kfree(tm_list[i]);
}
if (locked)
- tree_mod_log_write_unlock(fs_info);
+ write_unlock(&eb->fs_info->tree_mod_log_lock);
kfree(tm_list);
kfree(tm);
@@ -713,7 +693,7 @@ tree_mod_log_insert_root(struct btrfs_fs_info *fs_info,
if (!ret)
ret = __tree_mod_log_insert(fs_info, tm);
- tree_mod_log_write_unlock(fs_info);
+ write_unlock(&fs_info->tree_mod_log_lock);
if (ret)
goto free_tms;
kfree(tm_list);
@@ -741,7 +721,7 @@ __tree_mod_log_search(struct btrfs_fs_info *fs_info, u64 start, u64 min_seq,
struct tree_mod_elem *found = NULL;
u64 index = start >> PAGE_CACHE_SHIFT;
- tree_mod_log_read_lock(fs_info);
+ read_lock(&fs_info->tree_mod_log_lock);
tm_root = &fs_info->tree_mod_log;
node = tm_root->rb_node;
while (node) {
@@ -769,7 +749,7 @@ __tree_mod_log_search(struct btrfs_fs_info *fs_info, u64 start, u64 min_seq,
break;
}
}
- tree_mod_log_read_unlock(fs_info);
+ read_unlock(&fs_info->tree_mod_log_lock);
return found;
}
@@ -850,7 +830,7 @@ tree_mod_log_eb_copy(struct btrfs_fs_info *fs_info, struct extent_buffer *dst,
goto free_tms;
}
- tree_mod_log_write_unlock(fs_info);
+ write_unlock(&fs_info->tree_mod_log_lock);
kfree(tm_list);
return 0;
@@ -862,7 +842,7 @@ tree_mod_log_eb_copy(struct btrfs_fs_info *fs_info, struct extent_buffer *dst,
kfree(tm_list[i]);
}
if (locked)
- tree_mod_log_write_unlock(fs_info);
+ write_unlock(&fs_info->tree_mod_log_lock);
kfree(tm_list);
return ret;
@@ -922,7 +902,7 @@ tree_mod_log_free_eb(struct btrfs_fs_info *fs_info, struct extent_buffer *eb)
goto free_tms;
ret = __tree_mod_log_free_eb(fs_info, tm_list, nritems);
- tree_mod_log_write_unlock(fs_info);
+ write_unlock(&eb->fs_info->tree_mod_log_lock);
if (ret)
goto free_tms;
kfree(tm_list);
@@ -1284,7 +1264,7 @@ __tree_mod_log_rewind(struct btrfs_fs_info *fs_info, struct extent_buffer *eb,
unsigned long p_size = sizeof(struct btrfs_key_ptr);
n = btrfs_header_nritems(eb);
- tree_mod_log_read_lock(fs_info);
+ read_lock(&fs_info->tree_mod_log_lock);
while (tm && tm->seq >= time_seq) {
/*
* all the operations are recorded with the operator used for
@@ -1339,7 +1319,7 @@ __tree_mod_log_rewind(struct btrfs_fs_info *fs_info, struct extent_buffer *eb,
if (tm->index != first_tm->index)
break;
}
- tree_mod_log_read_unlock(fs_info);
+ read_unlock(&fs_info->tree_mod_log_lock);
btrfs_set_header_nritems(eb, n);
}
--
2.20.1
next prev parent reply other threads:[~2020-02-13 15:23 UTC|newest]
Thread overview: 99+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-13 15:19 [PATCH 4.4 00/91] 4.4.214-stable review Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 01/91] media: iguanair: fix endpoint sanity check Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 02/91] x86/cpu: Update cached HLE state on write to TSX_CTRL_CPUID_CLEAR Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 03/91] sparc32: fix struct ipc64_perm type definition Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 04/91] ASoC: qcom: Fix of-node refcount unbalance to link->codec_of_node Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 05/91] cls_rsvp: fix rsvp_policy Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 06/91] net: hsr: fix possible NULL deref in hsr_handle_frame() Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 07/91] net_sched: fix an OOB access in cls_tcindex Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 08/91] tcp: clear tp->total_retrans in tcp_disconnect() Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 09/91] tcp: clear tp->segs_{in|out} " Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 10/91] media: uvcvideo: Avoid cyclic entity chains due to malformed USB descriptors Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 11/91] mfd: dln2: More sanity checking for endpoints Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 12/91] brcmfmac: Fix memory leak in brcmf_usbdev_qinit Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 13/91] usb: gadget: legacy: set max_speed to super-speed Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 14/91] usb: gadget: f_ncm: Use atomic_t to track in-flight request Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 15/91] usb: gadget: f_ecm: " Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 16/91] ALSA: dummy: Fix PCM format loop in proc output Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 17/91] lib/test_kasan.c: fix memory leak in kmalloc_oob_krealloc_more() Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 18/91] powerpc/pseries: Advance pfn if section is not present in lmb_is_removable() Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 19/91] mmc: spi: Toggle SPI polarity, do not hardcode it Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 20/91] PCI: keystone: Fix link training retries initiation Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 21/91] crypto: api - Check spawn->alg under lock in crypto_drop_spawn Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 22/91] scsi: qla2xxx: Fix mtcp dump collection failure Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 23/91] power: supply: ltc2941-battery-gauge: fix use-after-free Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 24/91] Revert "ovl: modify ovl_permission() to do checks on two inodes" Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 25/91] of: Add OF_DMA_DEFAULT_COHERENT & select it on powerpc Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 26/91] dm space map common: fix to ensure new block isnt already in use Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 27/91] padata: Remove broken queue flushing Greg Kroah-Hartman
2020-02-15 1:30 ` [PATCH v2 4.4] " Daniel Jordan
2020-02-13 15:19 ` [PATCH 4.4 28/91] crypto: pcrypt - Do not clear MAY_SLEEP flag in original request Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 29/91] crypto: api - Fix race condition in crypto_spawn_alg Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 30/91] crypto: picoxcell - adjust the position of tasklet_init and fix missed tasklet_kill Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 31/91] btrfs: set trans->drity in btrfs_commit_transaction Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 32/91] ARM: tegra: Enable PLLP bypass during Tegra124 LP1 Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 33/91] mwifiex: fix unbalanced locking in mwifiex_process_country_ie() Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 34/91] sunrpc: expiry_time should be seconds not timeval Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 35/91] KVM: x86: Refactor prefix decoding to prevent Spectre-v1/L1TF attacks Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 36/91] KVM: x86: Protect DR-based index computations from " Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 37/91] KVM: x86: Protect kvm_hv_msr_[get|set]_crash_data() " Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 38/91] KVM: x86: Protect ioapic_write_indirect() " Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 39/91] KVM: x86: Protect MSR-based index computations in pmu.h " Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 40/91] KVM: x86: Protect ioapic_read_indirect() " Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 41/91] KVM: x86: Protect MSR-based index computations from Spectre-v1/L1TF attacks in x86.c Greg Kroah-Hartman
2020-02-13 15:19 ` [PATCH 4.4 42/91] KVM: x86: Protect x86_decode_insn from Spectre-v1/L1TF attacks Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 43/91] KVM: x86: Protect MSR-based index computations in fixed_msr_to_seg_unit() " Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 44/91] KVM: PPC: Book3S HV: Uninit vCPU if vcore creation fails Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 45/91] KVM: PPC: Book3S PR: Free shared page if mmu initialization fails Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 46/91] KVM: x86: Free wbinvd_dirty_mask if vCPU creation fails Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 47/91] scsi: qla2xxx: Fix the endianness of the qla82xx_get_fw_size() return type Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 48/91] scsi: csiostor: Adjust indentation in csio_device_reset Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 49/91] scsi: qla4xxx: Adjust indentation in qla4xxx_mem_free Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 50/91] ext2: Adjust indentation in ext2_fill_super Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 51/91] powerpc/44x: Adjust indentation in ibm4xx_denali_fixup_memsize Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 52/91] NFC: pn544: Adjust indentation in pn544_hci_check_presence Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 53/91] ppp: Adjust indentation into ppp_async_input Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 54/91] net: smc911x: Adjust indentation in smc911x_phy_configure Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 55/91] net: tulip: Adjust indentation in {dmfe, uli526x}_init_module Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 56/91] mfd: da9062: Fix watchdog compatible string Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 57/91] mfd: rn5t618: Mark ADC control register volatile Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 58/91] net: systemport: Avoid RBUF stuck in Wake-on-LAN mode Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 59/91] bonding/alb: properly access headers in bond_alb_xmit() Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 60/91] NFS: Fix memory leaks and corruption in readdir Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 61/91] NFS: Fix bool initialization/comparison Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 62/91] NFS: Directory page cache pages need to be locked when read Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 63/91] Btrfs: fix assertion failure on fsync with NO_HOLES enabled Greg Kroah-Hartman
2020-02-13 15:20 ` Greg Kroah-Hartman [this message]
2020-02-13 15:20 ` [PATCH 4.4 65/91] Btrfs: fix race between adding and putting tree mod seq elements and nodes Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 66/91] drm: atmel-hlcdc: enable clock before configuring timing engine Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 67/91] drm/dp_mst: Remove VCPI while disabling topology mgr Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 68/91] KVM: x86: drop picdev_in_range() Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 69/91] KVM: x86: Refactor picdev_write() to prevent Spectre-v1/L1TF attacks Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 70/91] KVM: x86: Protect pmu_intel.c from " Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 71/91] KVM: x86: Protect kvm_lapic_reg_write() " Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 72/91] btrfs: flush write bio if we loop in extent_write_cache_pages Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 73/91] KVM: x86/mmu: Apply max PA check for MMIO sptes to 32-bit KVM Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 74/91] KVM: VMX: Add non-canonical check on writes to RTIT address MSRs Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 75/91] KVM: nVMX: vmread should not set rflags to specify success in case of #PF Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 76/91] cifs: fail i/o on soft mounts if sessionsetup errors out Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 77/91] clocksource: Prevent double add_timer_on() for watchdog_timer Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 78/91] perf/core: Fix mlock accounting in perf_mmap() Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 79/91] ASoC: pcm: update FE/BE trigger order based on the command Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 80/91] scsi: ufs: Fix ufshcd_probe_hba() reture value in case ufshcd_scsi_add_wlus() fails Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 81/91] rtc: hym8563: Return -EINVAL if the time is known to be invalid Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 82/91] ARC: [plat-axs10x]: Add missing multicast filter number to GMAC node Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 83/91] ARM: dts: at91: sama5d3: fix maximum peripheral clock rates Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 84/91] ARM: dts: at91: sama5d3: define clock rate range for tcb1 Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 85/91] powerpc/pseries: Allow not having ibm, hypertas-functions::hcall-multi-tce for DDW Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 86/91] pinctrl: sh-pfc: r8a7778: Fix duplicate SDSELF_B and SD1_CLK_B Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 87/91] mwifiex: Fix possible buffer overflows in mwifiex_ret_wmm_get_status() Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 88/91] mwifiex: Fix possible buffer overflows in mwifiex_cmd_append_vsie_tlv() Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 89/91] libertas: dont exit from lbs_ibss_join_existing() with RCU read lock held Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 90/91] libertas: make lbs_ibss_join_existing() return error code on rates overflow Greg Kroah-Hartman
2020-02-13 15:20 ` [PATCH 4.4 91/91] dm: fix potential for q->make_request_fn NULL pointer Greg Kroah-Hartman
2020-02-13 16:57 ` [PATCH 4.4 00/91] 4.4.214-stable review Chris Paterson
2020-02-13 23:17 ` Greg Kroah-Hartman
2020-02-14 1:21 ` shuah
2020-02-14 5:26 ` Guenter Roeck
2020-02-14 10:25 ` Jon Hunter
2020-02-14 10:37 ` Naresh Kamboju
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