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e2fsck: reopen the file system with saved flags after a journal replay 

After a journal replay, we close and reopen the file system so that
any changes in the superblock can get reflected in the libext2fs's
internal data structures.  We need to save the flags passed to
ext2fs_open() that we used when we originally opened the file system.

Otherwise we will end up not be able to repair a file system which
requires a journal replay and which has bigalloc enabled or which has
more than 2**32 blocks; e2fsck will abort with the error message:

fsck.ext4: Filesystem too large to use legacy bitmaps while trying to re-open

Addresses-Debian-Bug: 744953
Cc: Андрей Василишин <a.vasilishin@kpi.ua>
Cc: Jon Severinsson <jon@severinsson.net>
Cc: 744953@bugs.debian.org
maint-test
Theodore Ts'o 2014-07-05 22:53:29 -04:00
parent d988201ef9
commit 0d19ccbdaa
3 changed files with 3 additions and 1 deletions
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1
e2fsck/e2fsck.h
View File

@ -232,6 +232,7 @@ struct e2fsck_struct {
blk64_t free_blocks;
ino_t free_inodes;
int mount_flags;
int openfs_flags;
blkid_cache blkid; /* blkid cache */
#ifdef HAVE_SETJMP_H

2
e2fsck/journal.c
View File

@ -903,7 +903,7 @@ errcode_t e2fsck_run_ext3_journal(e2fsck_t ctx)
ext2fs_mmp_stop(ctx->fs);
ext2fs_free(ctx->fs);
retval = ext2fs_open(ctx->filesystem_name, EXT2_FLAG_RW,
retval = ext2fs_open(ctx->filesystem_name, ctx->openfs_flags,
ctx->superblock, blocksize, io_ptr,
&ctx->fs);
if (retval) {

1
e2fsck/unix.c
View File

@ -1274,6 +1274,7 @@ restart:
flags &= ~EXT2_FLAG_EXCLUSIVE;
}
ctx->openfs_flags = flags;
retval = try_open_fs(ctx, flags, io_ptr, &fs);
if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&