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Message-ID: <20140908231228.25904.49070.stgit@birch.djwong.org>
Date: Mon, 08 Sep 2014 16:12:28 -0700
From: "Darrick J. Wong" <darrick.wong@...cle.com>
To: tytso@....edu, darrick.wong@...cle.com
Cc: linux-ext4@...r.kernel.org, TR Reardon <thomas_reardon@...mail.com>
Subject: [PATCH 08/25] dumpe2fs: display external journal feature flags
Display the feature flags of an external journal.
Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com>
Reported-by: TR Reardon <thomas_reardon@...mail.com>
---
misc/dumpe2fs.c | 14 ++++++++++
tests/j_ext_dumpe2fs/expect | 55 +++++++++++++++++++++++++++++++++++++++++
tests/j_ext_dumpe2fs/image.gz | Bin
tests/j_ext_dumpe2fs/name | 1 +
tests/j_ext_dumpe2fs/script | 40 ++++++++++++++++++++++++++++++
5 files changed, 109 insertions(+), 1 deletion(-)
create mode 100644 tests/j_ext_dumpe2fs/expect
create mode 100644 tests/j_ext_dumpe2fs/image.gz
create mode 100644 tests/j_ext_dumpe2fs/name
create mode 100644 tests/j_ext_dumpe2fs/script
diff --git a/misc/dumpe2fs.c b/misc/dumpe2fs.c
index 25dce9c..4c7bf46 100644
--- a/misc/dumpe2fs.c
+++ b/misc/dumpe2fs.c
@@ -433,8 +433,9 @@ static void print_journal_information(ext2_filsys fs)
errcode_t retval;
char buf[1024];
char str[80];
- unsigned int i;
+ unsigned int i, j, printed = 0;
journal_superblock_t *jsb;
+ __u32 *mask_ptr, mask, m;
/* Get the journal superblock */
if ((retval = io_channel_read_blk64(fs->io,
@@ -465,6 +466,17 @@ static void print_journal_information(ext2_filsys fs)
journal_checksum_type_str(jsb->s_checksum_type),
ext2fs_be32_to_cpu(jsb->s_checksum));
+ printf("%s", _("Journal features: "));
+ for (i = 0, mask_ptr = &jsb->s_feature_compat; i < 3; i++, mask_ptr++) {
+ mask = be32_to_cpu(*mask_ptr);
+ for (j = 0, m = 1; j < 32; j++, m <<= 1) {
+ if (mask & m) {
+ printf(" %s", e2p_jrnl_feature2string(i, m));
+ printed++;
+ }
+ }
+ }
+
printf(_("\nJournal block size: %u\n"
"Journal length: %u\n"
"Journal first block: %u\n"
diff --git a/tests/j_ext_dumpe2fs/expect b/tests/j_ext_dumpe2fs/expect
new file mode 100644
index 0000000..c75f74c
--- /dev/null
+++ b/tests/j_ext_dumpe2fs/expect
@@ -0,0 +1,55 @@
+e2fsck external journal
+../e2fsck/e2fsck: Filesystem has unsupported feature(s) while trying to open test.img
+
+The superblock could not be read or does not describe a valid ext2/ext3/ext4
+filesystem. If the device is valid and it really contains an ext2/ext3/ext4
+filesystem (and not swap or ufs or something else), then the superblock
+is corrupt, and you might try running e2fsck with an alternate superblock:
+ e2fsck -b 8193 <device>
+ or
+ e2fsck -b 32768 <device>
+
+Exit status is 8
+dumpe2fs external journal
+Filesystem volume name: <none>
+Last mounted on: <not available>
+Filesystem magic number: 0xEF53
+Filesystem revision #: 1 (dynamic)
+Filesystem features: journal_dev metadata_csum
+Default mount options: user_xattr acl block_validity
+Filesystem state: clean
+Errors behavior: Continue
+Filesystem OS type: Linux
+Inode count: 0
+Block count: 2048
+Reserved block count: 0
+Free blocks: 0
+Free inodes: 0
+First block: 1
+Block size: 1024
+Fragment size: 1024
+Blocks per group: 8192
+Fragments per group: 8192
+Inodes per group: 0
+Inode blocks per group: 0
+Mount count: 0
+Check interval: 0 (<none>)
+Reserved blocks uid: 0
+Reserved blocks gid: 0
+First inode: 11
+Inode size: 256
+Required extra isize: 28
+Desired extra isize: 28
+Default directory hash: half_md4
+Checksum type: crc32c
+Checksum: 0x3a9935ab
+Journal checksum type: crc32c
+Journal checksum: 0x661e816f
+Journal features: journal_64bit journal_checksum_v3
+Journal block size: 1024
+Journal length: 2048
+Journal first block: 3
+Journal sequence: 0x00000003
+Journal start: 0
+Journal number of users: 1
+Journal users: 117f752e-f27d-4f6f-a652-072586a29b82
diff --git a/tests/j_ext_dumpe2fs/image.gz b/tests/j_ext_dumpe2fs/image.gz
new file mode 100644
index 0000000000000000000000000000000000000000..781b591c0f81778a4209096878b15bc0be99e04e
GIT binary patch
literal 2963
zcmeIu{ZpC+00(euw^_RI&`eE((a35qap@...QV{cx#nCr=F8OE(saJ$Is<VK&u&i1
zbLpJ3@...+rb}g=3JAX8sZ)b+Y6BD;hz=1D*;s)3@...u{)~?APv7tN#}Bsh6^{+E
zSK`Y%EGov2iDyDQpE9zQG)`CIIHqBNbdsCQJ&*>HjK|}0Lvw+$Oz)v{aRGR2%Pkxl
zLdW`|lNPYM(6I!CGO7l>3p$e!{W*TWYV5U&tCl8CeZfbC>9Ga3Am-2Ey@m~@...uc
z+c?sQAGxAf6gMhp6O@...G=AWc%xBdZRa_u%}xhsnEu1~4{VyiZ(WuS@...2X*QSX
zF4$Iw(k55S*XJX_%{1@...tiX^6U=~i-^MyaAmfKxyqIAgWehrD;qs2qa8KnP4c*0
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ztM))p9r^3!kqoSf4h3uHXNzWkhpI43P1I!J+o!y^hj~6RwDvl+?#}aN4mj}lsyAX0
zYU!E!o135RdlJfaoX&}=s!(n>sLMxNVv4Laq>cV0@...br`4`1gU$8}d)?m6!ga#L
z>L>ciYx(ah3a2`dk)}bHKThpyCT7Z;H!10?{Hgc~dvLGGDk2hqtf}~){u|c6q#6D_
z#PRLY9+Q~2p8!y&G=XLxNe41^b<lMf#~^nB=@...vI6I(;w$ap&uhyK`bqY>teZuq
zuylSUTd(36C%T&Jqc#iDVbu)|#!SrCSEkx*ek5A-i(h*P%7<Ou)U#o~$s%ZPEFv<L
z4_UI(FQ*L22kv}xNk~6nAqv9ry!z5pTn9OCIna3RJYU*BJ@...pM%{kF6N;}T*2@$
zm1Ntg;bB1Q*QrhyoV8lAwz2XZ6d;BTI=l94Y8SQ{u|iAZ7GO0(*b9S5&4T`z^uC_}
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literal 0
HcmV?d00001
diff --git a/tests/j_ext_dumpe2fs/name b/tests/j_ext_dumpe2fs/name
new file mode 100644
index 0000000..60d276c
--- /dev/null
+++ b/tests/j_ext_dumpe2fs/name
@@ -0,0 +1 @@
+dumpe2fs of external journal device
diff --git a/tests/j_ext_dumpe2fs/script b/tests/j_ext_dumpe2fs/script
new file mode 100644
index 0000000..1611c45
--- /dev/null
+++ b/tests/j_ext_dumpe2fs/script
@@ -0,0 +1,40 @@
+FSCK_OPT=-fy
+OUT=$test_name.log
+if [ -f $test_dir/expect.gz ]; then
+ EXP=$test_name.tmp
+ gunzip < $test_dir/expect.gz > $EXP1
+else
+ EXP=$test_dir/expect
+fi
+
+cp /dev/null $OUT
+
+gunzip < $test_dir/image.gz > $TMPFILE
+
+echo "e2fsck external journal" >> $OUT
+$FSCK -fy -N test_filesys $TMPFILE > $OUT.new 2>&1
+status=$?
+echo Exit status is $status >> $OUT.new
+sed -f $cmd_dir/filter.sed -e "s;$TMPFILE;test.img;" $OUT.new >> $OUT
+rm -f $OUT.new
+
+echo "dumpe2fs external journal" >> $OUT
+$DUMPE2FS $TMPFILE > $OUT.new 2>&1
+sed -f $cmd_dir/filter.sed -e "s;$TMPFILE;test.img;" $OUT.new >> $OUT
+rm -f $OUT.new
+
+rm -f $TMPFILE
+
+cmp -s $OUT $EXP
+status=$?
+
+if [ "$status" = 0 ] ; then
+ echo "$test_name: $test_description: ok"
+ touch $test_name.ok
+else
+ echo "$test_name: $test_description: failed"
+ diff $DIFF_OPTS $EXP $OUT > $test_name.failed
+ rm -f $test_name.tmp
+fi
+
+unset IMAGE FSCK_OPT OUT EXP
--
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