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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-11-01 00:01:41 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-11-23 23:11:13 +0300 |
| commit | 099228000eff6b25e0f76b276043cd65cd4eba5a (patch) | |
| tree | a3d9ba92b131952618261db5f3c87543d5e2373a /fs/f2fs | |
| parent | ed6bd4b146527e7c6934e3582c47d7b857802676 (diff) | |
| download | linux-099228000eff6b25e0f76b276043cd65cd4eba5a.tar.xz | |
f2fs: avoid infinite loop in the EIO case on recover_orphan_inodes
This patch should fix an infinite loop case below.
F2FS-fs : inject IO error in f2fs_read_end_io+0xf3/0x120 [f2fs]
F2FS-fs (nvme0n1p1): recover_orphan_inode: orphan failed (ino=39ac1a), run fsck to fix.
...
[<ffffffffc0b11ede>] sync_meta_pages+0xae/0x270 [f2fs]
[<ffffffffc0b288dd>] ? flush_sit_entries+0x8d/0x960 [f2fs]
[<ffffffffc0b13801>] write_checkpoint+0x361/0xf20 [f2fs]
[<ffffffffb40e979d>] ? trace_hardirqs_on+0xd/0x10
[<ffffffffc0b0a199>] ? f2fs_sync_fs+0x79/0x190 [f2fs]
[<ffffffffc0b0a1a5>] f2fs_sync_fs+0x85/0x190 [f2fs]
[<ffffffffc0b2560e>] f2fs_balance_fs_bg+0x7e/0x1c0 [f2fs]
[<ffffffffc0b216c4>] f2fs_write_node_pages+0x34/0x320 [f2fs]
[<ffffffffb41dff21>] do_writepages+0x21/0x30
[<ffffffffb429edb1>] __writeback_single_inode+0x61/0x760
[<ffffffffb490a937>] ? _raw_spin_unlock+0x27/0x40
[<ffffffffb42a0805>] writeback_single_inode+0xd5/0x190
[<ffffffffb42a0959>] write_inode_now+0x99/0xc0
[<ffffffffb4289a16>] iput+0x1f6/0x2c0
[<ffffffffc0b0e3be>] f2fs_fill_super+0xe0e/0x1300 [f2fs]
[<ffffffffb426c394>] ? sget_userns+0x4f4/0x530
[<ffffffffb426c692>] mount_bdev+0x182/0x1b0
[<ffffffffc0b0d5b0>] ? f2fs_commit_super+0x100/0x100 [f2fs]
[<ffffffffc0b0a375>] f2fs_mount+0x15/0x20 [f2fs]
[<ffffffffb426d038>] mount_fs+0x38/0x170
[<ffffffffb428ec9b>] vfs_kern_mount+0x6b/0x160
[<ffffffffb4291d9e>] do_mount+0x1be/0xd60
[<ffffffffb4291a57>] ? copy_mount_options+0xb7/0x220
[<ffffffffb4292c54>] SyS_mount+0x94/0xd0
[<ffffffffb490b345>] entry_SYSCALL_64_fastpath+0x23/0xc6
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/super.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 9749758f9977..72603f1d8c2e 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -1889,6 +1889,13 @@ free_node_inode: mutex_lock(&sbi->umount_mutex); release_ino_entry(sbi, true); f2fs_leave_shrinker(sbi); + /* + * Some dirty meta pages can be produced by recover_orphan_inodes() + * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg() + * followed by write_checkpoint() through f2fs_write_node_pages(), which + * falls into an infinite loop in sync_meta_pages(). + */ + truncate_inode_pages_final(META_MAPPING(sbi)); iput(sbi->node_inode); mutex_unlock(&sbi->umount_mutex); free_nm: |