75 lines
2.2 KiB
Diff
75 lines
2.2 KiB
Diff
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From cc59b82532b7a47051b5c64d554bf9f978ad92d4 Mon Sep 17 00:00:00 2001
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From: Baokun Li <libaokun1@huawei.com>
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Date: Fri, 17 Feb 2023 18:09:22 +0800
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Subject: [PATCH 2/2] tune2fs/fuse2fs/debugfs: save error information during
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journal replay
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Saving error information during journal replay, as in the kernel,
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prevents information loss from making problems difficult to locate.
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We save these error information until someone uses e2fsck to check
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for and fix possible errors.
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Signed-off-by: Baokun Li <libaokun1@huawei.com>
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Reviewed-by: Jan Kara <jack@suse.cz>
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Reviewed-by: zhanchengbin <zhanchengbin1@huawei.com>
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---
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debugfs/journal.c | 17 ++++++++++++++++-
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1 file changed, 16 insertions(+), 1 deletion(-)
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diff --git a/debugfs/journal.c b/debugfs/journal.c
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index 095fff0..a3128b7 100644
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--- a/debugfs/journal.c
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+++ b/debugfs/journal.c
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@@ -787,6 +787,8 @@ errcode_t ext2fs_run_ext3_journal(ext2_filsys *fsp)
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char *fsname;
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int fsflags;
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int fsblocksize;
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+ char *save;
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+ __u16 s_error_state;
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if (!(fs->flags & EXT2_FLAG_RW))
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return EXT2_ET_FILE_RO;
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@@ -806,6 +808,12 @@ errcode_t ext2fs_run_ext3_journal(ext2_filsys *fsp)
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if (stats && stats->bytes_written)
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kbytes_written = stats->bytes_written >> 10;
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+ save = malloc(EXT4_S_ERR_LEN);
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+ if (save)
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+ memcpy(save, ((char *) fs->super) + EXT4_S_ERR_START,
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+ EXT4_S_ERR_LEN);
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+ s_error_state = fs->super->s_state & EXT2_ERROR_FS;
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+
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ext2fs_mmp_stop(fs);
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fsname = fs->device_name;
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fs->device_name = NULL;
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@@ -816,11 +824,15 @@ errcode_t ext2fs_run_ext3_journal(ext2_filsys *fsp)
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retval = ext2fs_open(fsname, fsflags, 0, fsblocksize, io_ptr, fsp);
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ext2fs_free_mem(&fsname);
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if (retval)
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- return retval;
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+ goto outfree;
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fs = *fsp;
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fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
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fs->super->s_kbytes_written += kbytes_written;
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+ fs->super->s_state |= s_error_state;
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+ if (save)
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+ memcpy(((char *) fs->super) + EXT4_S_ERR_START, save,
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+ EXT4_S_ERR_LEN);
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/* Set the superblock flags */
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ext2fs_clear_recover(fs, recover_retval != 0);
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@@ -830,6 +842,9 @@ errcode_t ext2fs_run_ext3_journal(ext2_filsys *fsp)
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* the EXT2_ERROR_FS flag in the fs superblock if needed.
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*/
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retval = ext2fs_check_ext3_journal(fs);
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+
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+outfree:
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+ free(save);
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return retval ? retval : recover_retval;
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}
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--
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2.41.0
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