forked from Minki/linux
e34438c903
This patch adds to do sanity check with below fields of inode to avoid reported panic. - node footer - iblocks https://bugzilla.kernel.org/show_bug.cgi?id=200223 - Overview BUG() triggered in f2fs_truncate_inode_blocks() when un-mounting a mounted f2fs image after writing to it - Reproduce - POC (poc.c) static void activity(char *mpoint) { char *foo_bar_baz; int err; static int buf[8192]; memset(buf, 0, sizeof(buf)); err = asprintf(&foo_bar_baz, "%s/foo/bar/baz", mpoint); // open / write / read int fd = open(foo_bar_baz, O_RDWR | O_TRUNC, 0777); if (fd >= 0) { write(fd, (char *)buf, 517); write(fd, (char *)buf, sizeof(buf)); close(fd); } } int main(int argc, char *argv[]) { activity(argv[1]); return 0; } - Kernel meesage [ 552.479723] F2FS-fs (loop0): Mounted with checkpoint version = 2 [ 556.451891] ------------[ cut here ]------------ [ 556.451899] kernel BUG at fs/f2fs/node.c:987! [ 556.452920] invalid opcode: 0000 [#1] SMP KASAN PTI [ 556.453936] CPU: 1 PID: 1310 Comm: umount Not tainted 4.18.0-rc1+ #4 [ 556.455213] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014 [ 556.457140] RIP: 0010:f2fs_truncate_inode_blocks+0x4a7/0x6f0 [ 556.458280] Code: e8 ae ea ff ff 41 89 c7 c1 e8 1f 84 c0 74 0a 41 83 ff fe 0f 85 35 ff ff ff 81 85 b0 fe ff ff fb 03 00 00 e9 f7 fd ff ff 0f 0b <0f> 0b e8 62 b7 9a 00 48 8b bd a0 fe ff ff e8 56 54 ae ff 48 8b b5 [ 556.462015] RSP: 0018:ffff8801f292f808 EFLAGS: 00010286 [ 556.463068] RAX: ffffed003e73242d RBX: ffff8801f292f958 RCX: ffffffffb88b81bc [ 556.464479] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801f3992164 [ 556.465901] RBP: ffff8801f292f980 R08: ffffed003e73242d R09: ffffed003e73242d [ 556.467311] R10: 0000000000000001 R11: ffffed003e73242c R12: 00000000fffffc64 [ 556.468706] R13: ffff8801f3992000 R14: 0000000000000058 R15: 00000000ffff8801 [ 556.470117] FS: 00007f8029297840(0000) GS:ffff8801f6f00000(0000) knlGS:0000000000000000 [ 556.471702] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 556.472838] CR2: 000055f5f57305d8 CR3: 00000001f18b0000 CR4: 00000000000006e0 [ 556.474265] Call Trace: [ 556.474782] ? f2fs_alloc_nid_failed+0xf0/0xf0 [ 556.475686] ? truncate_nodes+0x980/0x980 [ 556.476516] ? pagecache_get_page+0x21f/0x2f0 [ 556.477412] ? __asan_loadN+0xf/0x20 [ 556.478153] ? __get_node_page+0x331/0x5b0 [ 556.478992] ? reweight_entity+0x1e6/0x3b0 [ 556.479826] f2fs_truncate_blocks+0x55e/0x740 [ 556.480709] ? f2fs_truncate_data_blocks+0x20/0x20 [ 556.481689] ? __radix_tree_lookup+0x34/0x160 [ 556.482630] ? radix_tree_lookup+0xd/0x10 [ 556.483445] f2fs_truncate+0xd4/0x1a0 [ 556.484206] f2fs_evict_inode+0x5ce/0x630 [ 556.485032] evict+0x16f/0x290 [ 556.485664] iput+0x280/0x300 [ 556.486300] dentry_unlink_inode+0x165/0x1e0 [ 556.487169] __dentry_kill+0x16a/0x260 [ 556.487936] dentry_kill+0x70/0x250 [ 556.488651] shrink_dentry_list+0x125/0x260 [ 556.489504] shrink_dcache_parent+0xc1/0x110 [ 556.490379] ? shrink_dcache_sb+0x200/0x200 [ 556.491231] ? bit_wait_timeout+0xc0/0xc0 [ 556.492047] do_one_tree+0x12/0x40 [ 556.492743] shrink_dcache_for_umount+0x3f/0xa0 [ 556.493656] generic_shutdown_super+0x43/0x1c0 [ 556.494561] kill_block_super+0x52/0x80 [ 556.495341] kill_f2fs_super+0x62/0x70 [ 556.496105] deactivate_locked_super+0x6f/0xa0 [ 556.497004] deactivate_super+0x5e/0x80 [ 556.497785] cleanup_mnt+0x61/0xa0 [ 556.498492] __cleanup_mnt+0x12/0x20 [ 556.499218] task_work_run+0xc8/0xf0 [ 556.499949] exit_to_usermode_loop+0x125/0x130 [ 556.500846] do_syscall_64+0x138/0x170 [ 556.501609] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 556.502659] RIP: 0033:0x7f8028b77487 [ 556.503384] Code: 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e1 c9 2b 00 f7 d8 64 89 01 48 [ 556.507137] RSP: 002b:00007fff9f2e3598 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 556.508637] RAX: 0000000000000000 RBX: 0000000000ebd030 RCX: 00007f8028b77487 [ 556.510069] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000ec41e0 [ 556.511481] RBP: 0000000000ec41e0 R08: 0000000000000000 R09: 0000000000000014 [ 556.512892] R10: 00000000000006b2 R11: 0000000000000246 R12: 00007f802908083c [ 556.514320] R13: 0000000000000000 R14: 0000000000ebd210 R15: 00007fff9f2e3820 [ 556.515745] Modules linked in: snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm snd_timer snd mac_hid i2c_piix4 soundcore ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx raid1 raid0 multipath linear 8139too crct10dif_pclmul crc32_pclmul qxl drm_kms_helper syscopyarea aesni_intel sysfillrect sysimgblt fb_sys_fops ttm drm aes_x86_64 crypto_simd cryptd 8139cp glue_helper mii pata_acpi floppy [ 556.529276] ---[ end trace 4ce02f25ff7d3df5 ]--- [ 556.530340] RIP: 0010:f2fs_truncate_inode_blocks+0x4a7/0x6f0 [ 556.531513] Code: e8 ae ea ff ff 41 89 c7 c1 e8 1f 84 c0 74 0a 41 83 ff fe 0f 85 35 ff ff ff 81 85 b0 fe ff ff fb 03 00 00 e9 f7 fd ff ff 0f 0b <0f> 0b e8 62 b7 9a 00 48 8b bd a0 fe ff ff e8 56 54 ae ff 48 8b b5 [ 556.535330] RSP: 0018:ffff8801f292f808 EFLAGS: 00010286 [ 556.536395] RAX: ffffed003e73242d RBX: ffff8801f292f958 RCX: ffffffffb88b81bc [ 556.537824] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801f3992164 [ 556.539290] RBP: ffff8801f292f980 R08: ffffed003e73242d R09: ffffed003e73242d [ 556.540709] R10: 0000000000000001 R11: ffffed003e73242c R12: 00000000fffffc64 [ 556.542131] R13: ffff8801f3992000 R14: 0000000000000058 R15: 00000000ffff8801 [ 556.543579] FS: 00007f8029297840(0000) GS:ffff8801f6f00000(0000) knlGS:0000000000000000 [ 556.545180] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 556.546338] CR2: 000055f5f57305d8 CR3: 00000001f18b0000 CR4: 00000000000006e0 [ 556.547809] ================================================================== [ 556.549248] BUG: KASAN: stack-out-of-bounds in arch_tlb_gather_mmu+0x52/0x170 [ 556.550672] Write of size 8 at addr ffff8801f292fd10 by task umount/1310 [ 556.552338] CPU: 1 PID: 1310 Comm: umount Tainted: G D 4.18.0-rc1+ #4 [ 556.553886] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014 [ 556.555756] Call Trace: [ 556.556264] dump_stack+0x7b/0xb5 [ 556.556944] print_address_description+0x70/0x290 [ 556.557903] kasan_report+0x291/0x390 [ 556.558649] ? arch_tlb_gather_mmu+0x52/0x170 [ 556.559537] __asan_store8+0x57/0x90 [ 556.560268] arch_tlb_gather_mmu+0x52/0x170 [ 556.561110] tlb_gather_mmu+0x12/0x40 [ 556.561862] exit_mmap+0x123/0x2a0 [ 556.562555] ? __ia32_sys_munmap+0x50/0x50 [ 556.563384] ? exit_aio+0x98/0x230 [ 556.564079] ? __x32_compat_sys_io_submit+0x260/0x260 [ 556.565099] ? taskstats_exit+0x1f4/0x640 [ 556.565925] ? kasan_check_read+0x11/0x20 [ 556.566739] ? mm_update_next_owner+0x322/0x380 [ 556.567652] mmput+0x8b/0x1d0 [ 556.568260] do_exit+0x43a/0x1390 [ 556.568937] ? mm_update_next_owner+0x380/0x380 [ 556.569855] ? deactivate_super+0x5e/0x80 [ 556.570668] ? cleanup_mnt+0x61/0xa0 [ 556.571395] ? __cleanup_mnt+0x12/0x20 [ 556.572156] ? task_work_run+0xc8/0xf0 [ 556.572917] ? exit_to_usermode_loop+0x125/0x130 [ 556.573861] rewind_stack_do_exit+0x17/0x20 [ 556.574707] RIP: 0033:0x7f8028b77487 [ 556.575428] Code: Bad RIP value. [ 556.576106] RSP: 002b:00007fff9f2e3598 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 556.577599] RAX: 0000000000000000 RBX: 0000000000ebd030 RCX: 00007f8028b77487 [ 556.579020] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000ec41e0 [ 556.580422] RBP: 0000000000ec41e0 R08: 0000000000000000 R09: 0000000000000014 [ 556.581833] R10: 00000000000006b2 R11: 0000000000000246 R12: 00007f802908083c [ 556.583252] R13: 0000000000000000 R14: 0000000000ebd210 R15: 00007fff9f2e3820 [ 556.584983] The buggy address belongs to the page: [ 556.585961] page:ffffea0007ca4bc0 count:0 mapcount:0 mapping:0000000000000000 index:0x0 [ 556.587540] flags: 0x2ffff0000000000() [ 556.588296] raw: 02ffff0000000000 0000000000000000 dead000000000200 0000000000000000 [ 556.589822] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 556.591359] page dumped because: kasan: bad access detected [ 556.592786] Memory state around the buggy address: [ 556.593753] ffff8801f292fc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 556.595191] ffff8801f292fc80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00 00 [ 556.596613] >ffff8801f292fd00: 00 00 f3 00 00 00 00 f3 f3 00 00 00 00 f4 f4 f4 [ 556.598044] ^ [ 556.598797] ffff8801f292fd80: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 [ 556.600225] ffff8801f292fe00: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 f4 f4 f4 [ 556.601647] ================================================================== - Location https://elixir.bootlin.com/linux/v4.18-rc1/source/fs/f2fs/node.c#L987 case NODE_DIND_BLOCK: err = truncate_nodes(&dn, nofs, offset[1], 3); cont = 0; break; default: BUG(); <--- } Reported-by Wen Xu <wen.xu@gatech.edu> Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
716 lines
19 KiB
C
716 lines
19 KiB
C
/*
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* fs/f2fs/inode.c
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*
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* Copyright (c) 2012 Samsung Electronics Co., Ltd.
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* http://www.samsung.com/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/fs.h>
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#include <linux/f2fs_fs.h>
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#include <linux/buffer_head.h>
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#include <linux/backing-dev.h>
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#include <linux/writeback.h>
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#include "f2fs.h"
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#include "node.h"
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#include "segment.h"
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#include <trace/events/f2fs.h>
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void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync)
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{
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if (is_inode_flag_set(inode, FI_NEW_INODE))
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return;
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if (f2fs_inode_dirtied(inode, sync))
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return;
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mark_inode_dirty_sync(inode);
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}
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void f2fs_set_inode_flags(struct inode *inode)
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{
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unsigned int flags = F2FS_I(inode)->i_flags;
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unsigned int new_fl = 0;
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if (flags & F2FS_SYNC_FL)
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new_fl |= S_SYNC;
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if (flags & F2FS_APPEND_FL)
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new_fl |= S_APPEND;
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if (flags & F2FS_IMMUTABLE_FL)
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new_fl |= S_IMMUTABLE;
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if (flags & F2FS_NOATIME_FL)
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new_fl |= S_NOATIME;
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if (flags & F2FS_DIRSYNC_FL)
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new_fl |= S_DIRSYNC;
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if (f2fs_encrypted_inode(inode))
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new_fl |= S_ENCRYPTED;
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inode_set_flags(inode, new_fl,
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S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|
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S_ENCRYPTED);
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}
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static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
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{
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int extra_size = get_extra_isize(inode);
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if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
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S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
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if (ri->i_addr[extra_size])
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inode->i_rdev = old_decode_dev(
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le32_to_cpu(ri->i_addr[extra_size]));
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else
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inode->i_rdev = new_decode_dev(
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le32_to_cpu(ri->i_addr[extra_size + 1]));
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}
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}
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static bool __written_first_block(struct f2fs_sb_info *sbi,
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struct f2fs_inode *ri)
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{
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block_t addr = le32_to_cpu(ri->i_addr[offset_in_addr(ri)]);
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if (is_valid_data_blkaddr(sbi, addr))
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return true;
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return false;
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}
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static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
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{
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int extra_size = get_extra_isize(inode);
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if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
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if (old_valid_dev(inode->i_rdev)) {
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ri->i_addr[extra_size] =
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cpu_to_le32(old_encode_dev(inode->i_rdev));
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ri->i_addr[extra_size + 1] = 0;
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} else {
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ri->i_addr[extra_size] = 0;
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ri->i_addr[extra_size + 1] =
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cpu_to_le32(new_encode_dev(inode->i_rdev));
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ri->i_addr[extra_size + 2] = 0;
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}
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}
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}
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static void __recover_inline_status(struct inode *inode, struct page *ipage)
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{
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void *inline_data = inline_data_addr(inode, ipage);
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__le32 *start = inline_data;
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__le32 *end = start + MAX_INLINE_DATA(inode) / sizeof(__le32);
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while (start < end) {
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if (*start++) {
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f2fs_wait_on_page_writeback(ipage, NODE, true);
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set_inode_flag(inode, FI_DATA_EXIST);
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set_raw_inline(inode, F2FS_INODE(ipage));
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set_page_dirty(ipage);
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return;
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}
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}
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return;
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}
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static bool f2fs_enable_inode_chksum(struct f2fs_sb_info *sbi, struct page *page)
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{
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struct f2fs_inode *ri = &F2FS_NODE(page)->i;
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if (!f2fs_sb_has_inode_chksum(sbi->sb))
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return false;
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if (!RAW_IS_INODE(F2FS_NODE(page)) || !(ri->i_inline & F2FS_EXTRA_ATTR))
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return false;
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if (!F2FS_FITS_IN_INODE(ri, le16_to_cpu(ri->i_extra_isize),
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i_inode_checksum))
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return false;
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return true;
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}
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static __u32 f2fs_inode_chksum(struct f2fs_sb_info *sbi, struct page *page)
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{
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struct f2fs_node *node = F2FS_NODE(page);
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struct f2fs_inode *ri = &node->i;
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__le32 ino = node->footer.ino;
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__le32 gen = ri->i_generation;
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__u32 chksum, chksum_seed;
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__u32 dummy_cs = 0;
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unsigned int offset = offsetof(struct f2fs_inode, i_inode_checksum);
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unsigned int cs_size = sizeof(dummy_cs);
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chksum = f2fs_chksum(sbi, sbi->s_chksum_seed, (__u8 *)&ino,
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sizeof(ino));
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chksum_seed = f2fs_chksum(sbi, chksum, (__u8 *)&gen, sizeof(gen));
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chksum = f2fs_chksum(sbi, chksum_seed, (__u8 *)ri, offset);
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chksum = f2fs_chksum(sbi, chksum, (__u8 *)&dummy_cs, cs_size);
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offset += cs_size;
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chksum = f2fs_chksum(sbi, chksum, (__u8 *)ri + offset,
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F2FS_BLKSIZE - offset);
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return chksum;
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}
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bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page)
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{
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struct f2fs_inode *ri;
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__u32 provided, calculated;
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if (unlikely(is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN)))
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return true;
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#ifdef CONFIG_F2FS_CHECK_FS
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if (!f2fs_enable_inode_chksum(sbi, page))
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#else
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if (!f2fs_enable_inode_chksum(sbi, page) ||
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PageDirty(page) || PageWriteback(page))
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#endif
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return true;
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ri = &F2FS_NODE(page)->i;
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provided = le32_to_cpu(ri->i_inode_checksum);
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calculated = f2fs_inode_chksum(sbi, page);
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if (provided != calculated)
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f2fs_msg(sbi->sb, KERN_WARNING,
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"checksum invalid, ino = %x, %x vs. %x",
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ino_of_node(page), provided, calculated);
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return provided == calculated;
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}
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void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page)
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{
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struct f2fs_inode *ri = &F2FS_NODE(page)->i;
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if (!f2fs_enable_inode_chksum(sbi, page))
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return;
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ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page));
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}
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static bool sanity_check_inode(struct inode *inode, struct page *node_page)
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{
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struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
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unsigned long long iblocks;
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iblocks = le64_to_cpu(F2FS_INODE(node_page)->i_blocks);
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if (!iblocks) {
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set_sbi_flag(sbi, SBI_NEED_FSCK);
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f2fs_msg(sbi->sb, KERN_WARNING,
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"%s: corrupted inode i_blocks i_ino=%lx iblocks=%llu, "
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"run fsck to fix.",
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__func__, inode->i_ino, iblocks);
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return false;
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}
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if (ino_of_node(node_page) != nid_of_node(node_page)) {
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set_sbi_flag(sbi, SBI_NEED_FSCK);
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f2fs_msg(sbi->sb, KERN_WARNING,
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"%s: corrupted inode footer i_ino=%lx, ino,nid: "
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"[%u, %u] run fsck to fix.",
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__func__, inode->i_ino,
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ino_of_node(node_page), nid_of_node(node_page));
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return false;
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}
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if (f2fs_sb_has_flexible_inline_xattr(sbi->sb)
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&& !f2fs_has_extra_attr(inode)) {
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set_sbi_flag(sbi, SBI_NEED_FSCK);
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f2fs_msg(sbi->sb, KERN_WARNING,
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"%s: corrupted inode ino=%lx, run fsck to fix.",
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__func__, inode->i_ino);
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return false;
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}
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if (f2fs_has_extra_attr(inode) &&
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!f2fs_sb_has_extra_attr(sbi->sb)) {
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set_sbi_flag(sbi, SBI_NEED_FSCK);
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f2fs_msg(sbi->sb, KERN_WARNING,
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"%s: inode (ino=%lx) is with extra_attr, "
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"but extra_attr feature is off",
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__func__, inode->i_ino);
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return false;
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}
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return true;
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}
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static int do_read_inode(struct inode *inode)
|
|
{
|
|
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
|
|
struct f2fs_inode_info *fi = F2FS_I(inode);
|
|
struct page *node_page;
|
|
struct f2fs_inode *ri;
|
|
projid_t i_projid;
|
|
|
|
/* Check if ino is within scope */
|
|
if (f2fs_check_nid_range(sbi, inode->i_ino))
|
|
return -EINVAL;
|
|
|
|
node_page = f2fs_get_node_page(sbi, inode->i_ino);
|
|
if (IS_ERR(node_page))
|
|
return PTR_ERR(node_page);
|
|
|
|
ri = F2FS_INODE(node_page);
|
|
|
|
inode->i_mode = le16_to_cpu(ri->i_mode);
|
|
i_uid_write(inode, le32_to_cpu(ri->i_uid));
|
|
i_gid_write(inode, le32_to_cpu(ri->i_gid));
|
|
set_nlink(inode, le32_to_cpu(ri->i_links));
|
|
inode->i_size = le64_to_cpu(ri->i_size);
|
|
inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1);
|
|
|
|
inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime);
|
|
inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime);
|
|
inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime);
|
|
inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec);
|
|
inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec);
|
|
inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec);
|
|
inode->i_generation = le32_to_cpu(ri->i_generation);
|
|
if (S_ISDIR(inode->i_mode))
|
|
fi->i_current_depth = le32_to_cpu(ri->i_current_depth);
|
|
else if (S_ISREG(inode->i_mode))
|
|
fi->i_gc_failures[GC_FAILURE_PIN] =
|
|
le16_to_cpu(ri->i_gc_failures);
|
|
fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
|
|
fi->i_flags = le32_to_cpu(ri->i_flags);
|
|
fi->flags = 0;
|
|
fi->i_advise = ri->i_advise;
|
|
fi->i_pino = le32_to_cpu(ri->i_pino);
|
|
fi->i_dir_level = ri->i_dir_level;
|
|
|
|
if (f2fs_init_extent_tree(inode, &ri->i_ext))
|
|
set_page_dirty(node_page);
|
|
|
|
get_inline_info(inode, ri);
|
|
|
|
if (!sanity_check_inode(inode, node_page)) {
|
|
f2fs_put_page(node_page, 1);
|
|
return -EINVAL;
|
|
}
|
|
|
|
fi->i_extra_isize = f2fs_has_extra_attr(inode) ?
|
|
le16_to_cpu(ri->i_extra_isize) : 0;
|
|
|
|
if (f2fs_sb_has_flexible_inline_xattr(sbi->sb)) {
|
|
fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size);
|
|
} else if (f2fs_has_inline_xattr(inode) ||
|
|
f2fs_has_inline_dentry(inode)) {
|
|
fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
|
|
} else {
|
|
|
|
/*
|
|
* Previous inline data or directory always reserved 200 bytes
|
|
* in inode layout, even if inline_xattr is disabled. In order
|
|
* to keep inline_dentry's structure for backward compatibility,
|
|
* we get the space back only from inline_data.
|
|
*/
|
|
fi->i_inline_xattr_size = 0;
|
|
}
|
|
|
|
/* check data exist */
|
|
if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode))
|
|
__recover_inline_status(inode, node_page);
|
|
|
|
/* get rdev by using inline_info */
|
|
__get_inode_rdev(inode, ri);
|
|
|
|
if (__written_first_block(sbi, ri))
|
|
set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN);
|
|
|
|
if (!f2fs_need_inode_block_update(sbi, inode->i_ino))
|
|
fi->last_disk_size = inode->i_size;
|
|
|
|
if (fi->i_flags & F2FS_PROJINHERIT_FL)
|
|
set_inode_flag(inode, FI_PROJ_INHERIT);
|
|
|
|
if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi->sb) &&
|
|
F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid))
|
|
i_projid = (projid_t)le32_to_cpu(ri->i_projid);
|
|
else
|
|
i_projid = F2FS_DEF_PROJID;
|
|
fi->i_projid = make_kprojid(&init_user_ns, i_projid);
|
|
|
|
if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi->sb) &&
|
|
F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
|
|
fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime);
|
|
fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec);
|
|
}
|
|
|
|
F2FS_I(inode)->i_disk_time[0] = inode->i_atime;
|
|
F2FS_I(inode)->i_disk_time[1] = inode->i_ctime;
|
|
F2FS_I(inode)->i_disk_time[2] = inode->i_mtime;
|
|
F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime;
|
|
f2fs_put_page(node_page, 1);
|
|
|
|
stat_inc_inline_xattr(inode);
|
|
stat_inc_inline_inode(inode);
|
|
stat_inc_inline_dir(inode);
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
|
|
{
|
|
struct f2fs_sb_info *sbi = F2FS_SB(sb);
|
|
struct inode *inode;
|
|
int ret = 0;
|
|
|
|
inode = iget_locked(sb, ino);
|
|
if (!inode)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
if (!(inode->i_state & I_NEW)) {
|
|
trace_f2fs_iget(inode);
|
|
return inode;
|
|
}
|
|
if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi))
|
|
goto make_now;
|
|
|
|
ret = do_read_inode(inode);
|
|
if (ret)
|
|
goto bad_inode;
|
|
make_now:
|
|
if (ino == F2FS_NODE_INO(sbi)) {
|
|
inode->i_mapping->a_ops = &f2fs_node_aops;
|
|
mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
|
|
} else if (ino == F2FS_META_INO(sbi)) {
|
|
inode->i_mapping->a_ops = &f2fs_meta_aops;
|
|
mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
|
|
} else if (S_ISREG(inode->i_mode)) {
|
|
inode->i_op = &f2fs_file_inode_operations;
|
|
inode->i_fop = &f2fs_file_operations;
|
|
inode->i_mapping->a_ops = &f2fs_dblock_aops;
|
|
} else if (S_ISDIR(inode->i_mode)) {
|
|
inode->i_op = &f2fs_dir_inode_operations;
|
|
inode->i_fop = &f2fs_dir_operations;
|
|
inode->i_mapping->a_ops = &f2fs_dblock_aops;
|
|
inode_nohighmem(inode);
|
|
} else if (S_ISLNK(inode->i_mode)) {
|
|
if (f2fs_encrypted_inode(inode))
|
|
inode->i_op = &f2fs_encrypted_symlink_inode_operations;
|
|
else
|
|
inode->i_op = &f2fs_symlink_inode_operations;
|
|
inode_nohighmem(inode);
|
|
inode->i_mapping->a_ops = &f2fs_dblock_aops;
|
|
} else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
|
|
S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
|
|
inode->i_op = &f2fs_special_inode_operations;
|
|
init_special_inode(inode, inode->i_mode, inode->i_rdev);
|
|
} else {
|
|
ret = -EIO;
|
|
goto bad_inode;
|
|
}
|
|
f2fs_set_inode_flags(inode);
|
|
unlock_new_inode(inode);
|
|
trace_f2fs_iget(inode);
|
|
return inode;
|
|
|
|
bad_inode:
|
|
iget_failed(inode);
|
|
trace_f2fs_iget_exit(inode, ret);
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino)
|
|
{
|
|
struct inode *inode;
|
|
retry:
|
|
inode = f2fs_iget(sb, ino);
|
|
if (IS_ERR(inode)) {
|
|
if (PTR_ERR(inode) == -ENOMEM) {
|
|
congestion_wait(BLK_RW_ASYNC, HZ/50);
|
|
goto retry;
|
|
}
|
|
}
|
|
return inode;
|
|
}
|
|
|
|
void f2fs_update_inode(struct inode *inode, struct page *node_page)
|
|
{
|
|
struct f2fs_inode *ri;
|
|
struct extent_tree *et = F2FS_I(inode)->extent_tree;
|
|
|
|
f2fs_wait_on_page_writeback(node_page, NODE, true);
|
|
set_page_dirty(node_page);
|
|
|
|
f2fs_inode_synced(inode);
|
|
|
|
ri = F2FS_INODE(node_page);
|
|
|
|
ri->i_mode = cpu_to_le16(inode->i_mode);
|
|
ri->i_advise = F2FS_I(inode)->i_advise;
|
|
ri->i_uid = cpu_to_le32(i_uid_read(inode));
|
|
ri->i_gid = cpu_to_le32(i_gid_read(inode));
|
|
ri->i_links = cpu_to_le32(inode->i_nlink);
|
|
ri->i_size = cpu_to_le64(i_size_read(inode));
|
|
ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1);
|
|
|
|
if (et) {
|
|
read_lock(&et->lock);
|
|
set_raw_extent(&et->largest, &ri->i_ext);
|
|
read_unlock(&et->lock);
|
|
} else {
|
|
memset(&ri->i_ext, 0, sizeof(ri->i_ext));
|
|
}
|
|
set_raw_inline(inode, ri);
|
|
|
|
ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
|
|
ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
|
|
ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
|
|
ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
|
|
ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
|
|
ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
|
|
if (S_ISDIR(inode->i_mode))
|
|
ri->i_current_depth =
|
|
cpu_to_le32(F2FS_I(inode)->i_current_depth);
|
|
else if (S_ISREG(inode->i_mode))
|
|
ri->i_gc_failures =
|
|
cpu_to_le16(F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]);
|
|
ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid);
|
|
ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags);
|
|
ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino);
|
|
ri->i_generation = cpu_to_le32(inode->i_generation);
|
|
ri->i_dir_level = F2FS_I(inode)->i_dir_level;
|
|
|
|
if (f2fs_has_extra_attr(inode)) {
|
|
ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize);
|
|
|
|
if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode)->sb))
|
|
ri->i_inline_xattr_size =
|
|
cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size);
|
|
|
|
if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)->sb) &&
|
|
F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
|
|
i_projid)) {
|
|
projid_t i_projid;
|
|
|
|
i_projid = from_kprojid(&init_user_ns,
|
|
F2FS_I(inode)->i_projid);
|
|
ri->i_projid = cpu_to_le32(i_projid);
|
|
}
|
|
|
|
if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)->sb) &&
|
|
F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
|
|
i_crtime)) {
|
|
ri->i_crtime =
|
|
cpu_to_le64(F2FS_I(inode)->i_crtime.tv_sec);
|
|
ri->i_crtime_nsec =
|
|
cpu_to_le32(F2FS_I(inode)->i_crtime.tv_nsec);
|
|
}
|
|
}
|
|
|
|
__set_inode_rdev(inode, ri);
|
|
|
|
/* deleted inode */
|
|
if (inode->i_nlink == 0)
|
|
clear_inline_node(node_page);
|
|
|
|
F2FS_I(inode)->i_disk_time[0] = inode->i_atime;
|
|
F2FS_I(inode)->i_disk_time[1] = inode->i_ctime;
|
|
F2FS_I(inode)->i_disk_time[2] = inode->i_mtime;
|
|
F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime;
|
|
|
|
#ifdef CONFIG_F2FS_CHECK_FS
|
|
f2fs_inode_chksum_set(F2FS_I_SB(inode), node_page);
|
|
#endif
|
|
}
|
|
|
|
void f2fs_update_inode_page(struct inode *inode)
|
|
{
|
|
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
|
|
struct page *node_page;
|
|
retry:
|
|
node_page = f2fs_get_node_page(sbi, inode->i_ino);
|
|
if (IS_ERR(node_page)) {
|
|
int err = PTR_ERR(node_page);
|
|
if (err == -ENOMEM) {
|
|
cond_resched();
|
|
goto retry;
|
|
} else if (err != -ENOENT) {
|
|
f2fs_stop_checkpoint(sbi, false);
|
|
}
|
|
return;
|
|
}
|
|
f2fs_update_inode(inode, node_page);
|
|
f2fs_put_page(node_page, 1);
|
|
}
|
|
|
|
int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
|
|
{
|
|
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
|
|
|
|
if (inode->i_ino == F2FS_NODE_INO(sbi) ||
|
|
inode->i_ino == F2FS_META_INO(sbi))
|
|
return 0;
|
|
|
|
if (!is_inode_flag_set(inode, FI_DIRTY_INODE))
|
|
return 0;
|
|
|
|
/*
|
|
* We need to balance fs here to prevent from producing dirty node pages
|
|
* during the urgent cleaning time when runing out of free sections.
|
|
*/
|
|
f2fs_update_inode_page(inode);
|
|
if (wbc && wbc->nr_to_write)
|
|
f2fs_balance_fs(sbi, true);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Called at the last iput() if i_nlink is zero
|
|
*/
|
|
void f2fs_evict_inode(struct inode *inode)
|
|
{
|
|
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
|
|
nid_t xnid = F2FS_I(inode)->i_xattr_nid;
|
|
int err = 0;
|
|
|
|
/* some remained atomic pages should discarded */
|
|
if (f2fs_is_atomic_file(inode))
|
|
f2fs_drop_inmem_pages(inode);
|
|
|
|
trace_f2fs_evict_inode(inode);
|
|
truncate_inode_pages_final(&inode->i_data);
|
|
|
|
if (inode->i_ino == F2FS_NODE_INO(sbi) ||
|
|
inode->i_ino == F2FS_META_INO(sbi))
|
|
goto out_clear;
|
|
|
|
f2fs_bug_on(sbi, get_dirty_pages(inode));
|
|
f2fs_remove_dirty_inode(inode);
|
|
|
|
f2fs_destroy_extent_tree(inode);
|
|
|
|
if (inode->i_nlink || is_bad_inode(inode))
|
|
goto no_delete;
|
|
|
|
dquot_initialize(inode);
|
|
|
|
f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO);
|
|
f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO);
|
|
f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO);
|
|
|
|
sb_start_intwrite(inode->i_sb);
|
|
set_inode_flag(inode, FI_NO_ALLOC);
|
|
i_size_write(inode, 0);
|
|
retry:
|
|
if (F2FS_HAS_BLOCKS(inode))
|
|
err = f2fs_truncate(inode);
|
|
|
|
#ifdef CONFIG_F2FS_FAULT_INJECTION
|
|
if (time_to_inject(sbi, FAULT_EVICT_INODE)) {
|
|
f2fs_show_injection_info(FAULT_EVICT_INODE);
|
|
err = -EIO;
|
|
}
|
|
#endif
|
|
if (!err) {
|
|
f2fs_lock_op(sbi);
|
|
err = f2fs_remove_inode_page(inode);
|
|
f2fs_unlock_op(sbi);
|
|
if (err == -ENOENT)
|
|
err = 0;
|
|
}
|
|
|
|
/* give more chances, if ENOMEM case */
|
|
if (err == -ENOMEM) {
|
|
err = 0;
|
|
goto retry;
|
|
}
|
|
|
|
if (err)
|
|
f2fs_update_inode_page(inode);
|
|
dquot_free_inode(inode);
|
|
sb_end_intwrite(inode->i_sb);
|
|
no_delete:
|
|
dquot_drop(inode);
|
|
|
|
stat_dec_inline_xattr(inode);
|
|
stat_dec_inline_dir(inode);
|
|
stat_dec_inline_inode(inode);
|
|
|
|
if (likely(!is_set_ckpt_flags(sbi, CP_ERROR_FLAG)))
|
|
f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE));
|
|
else
|
|
f2fs_inode_synced(inode);
|
|
|
|
/* ino == 0, if f2fs_new_inode() was failed t*/
|
|
if (inode->i_ino)
|
|
invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino,
|
|
inode->i_ino);
|
|
if (xnid)
|
|
invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid);
|
|
if (inode->i_nlink) {
|
|
if (is_inode_flag_set(inode, FI_APPEND_WRITE))
|
|
f2fs_add_ino_entry(sbi, inode->i_ino, APPEND_INO);
|
|
if (is_inode_flag_set(inode, FI_UPDATE_WRITE))
|
|
f2fs_add_ino_entry(sbi, inode->i_ino, UPDATE_INO);
|
|
}
|
|
if (is_inode_flag_set(inode, FI_FREE_NID)) {
|
|
f2fs_alloc_nid_failed(sbi, inode->i_ino);
|
|
clear_inode_flag(inode, FI_FREE_NID);
|
|
} else {
|
|
/*
|
|
* If xattr nid is corrupted, we can reach out error condition,
|
|
* err & !f2fs_exist_written_data(sbi, inode->i_ino, ORPHAN_INO)).
|
|
* In that case, f2fs_check_nid_range() is enough to give a clue.
|
|
*/
|
|
}
|
|
out_clear:
|
|
fscrypt_put_encryption_info(inode);
|
|
clear_inode(inode);
|
|
}
|
|
|
|
/* caller should call f2fs_lock_op() */
|
|
void f2fs_handle_failed_inode(struct inode *inode)
|
|
{
|
|
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
|
|
struct node_info ni;
|
|
|
|
/*
|
|
* clear nlink of inode in order to release resource of inode
|
|
* immediately.
|
|
*/
|
|
clear_nlink(inode);
|
|
|
|
/*
|
|
* we must call this to avoid inode being remained as dirty, resulting
|
|
* in a panic when flushing dirty inodes in gdirty_list.
|
|
*/
|
|
f2fs_update_inode_page(inode);
|
|
f2fs_inode_synced(inode);
|
|
|
|
/* don't make bad inode, since it becomes a regular file. */
|
|
unlock_new_inode(inode);
|
|
|
|
/*
|
|
* Note: we should add inode to orphan list before f2fs_unlock_op()
|
|
* so we can prevent losing this orphan when encoutering checkpoint
|
|
* and following suddenly power-off.
|
|
*/
|
|
f2fs_get_node_info(sbi, inode->i_ino, &ni);
|
|
|
|
if (ni.blk_addr != NULL_ADDR) {
|
|
int err = f2fs_acquire_orphan_inode(sbi);
|
|
if (err) {
|
|
set_sbi_flag(sbi, SBI_NEED_FSCK);
|
|
f2fs_msg(sbi->sb, KERN_WARNING,
|
|
"Too many orphan inodes, run fsck to fix.");
|
|
} else {
|
|
f2fs_add_orphan_inode(inode);
|
|
}
|
|
f2fs_alloc_nid_done(sbi, inode->i_ino);
|
|
} else {
|
|
set_inode_flag(inode, FI_FREE_NID);
|
|
}
|
|
|
|
f2fs_unlock_op(sbi);
|
|
|
|
/* iput will drop the inode object */
|
|
iput(inode);
|
|
}
|