fuzz: for fuzzing the rtrmapbt, find the path to the rt rmap btree file

The fs population code creates a realtime rmap btree in /some/ realtime
group with at least two levels.  This rmapbt file isn't necessarily the
one for group 0, so we need to find it programmatically.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>

diff --git a/common/xfs b/common/xfs
index 73616108366cde20b9588d8fe1bdd8a48b6ae5a6..42635bab3ac967162dead35c0b6e475b79f13fa0 100644 (file)
--- a/common/xfs
+++ b/common/xfs
@@ -1814,6 +1814,39 @@ _scratch_xfs_find_agbtree_height() {
        return 1
 }
 
+# Find us the path to the inode containing a realtime btree with a specific
+# height.
+_scratch_xfs_find_rgbtree_height() {
+       local bt_type="$1"
+       local bt_height="$2"
+       local rgcount=$(_xfs_mount_rgcount $SCRATCH_DEV)
+       local path
+       local path_format
+       local bt_prefix
+
+       case "${bt_type}" in
+       "rmap")
+               path_format="/rtgroups/%u.rmap"
+               bt_prefix="u3.rtrmapbt"
+               ;;
+       *)
+               _fail "Don't know about rt btree ${bt_type}"
+               ;;
+       esac
+
+       for ((rgno = 0; rgno < rgcount; rgno++)); do
+               path="$(printf "${path_format}" "${rgno}")"
+               bt_level=$(_scratch_xfs_db -c "path -m ${path}" -c "p ${bt_prefix}.level" | awk '{print $3}')
+               # "level" is the actual level within the btree
+               if [ "${bt_level}" -eq "$((bt_height - 1))" ]; then
+                       echo "${path}"
+                       return 0
+               fi
+       done
+
+       return 1
+}
+
 _require_xfs_mkfs_atomicswap()
 {
        # atomicswap can be activated on rmap or reflink filesystems.

diff --git a/tests/xfs/406 b/tests/xfs/406
index 444dbd7266f4987c562d566c0941bb9a70b398f0..4f7b0fde8b7845f261bfb53ad816767ea5d7bde2 100755 (executable)
--- a/tests/xfs/406
+++ b/tests/xfs/406
@@ -24,10 +24,12 @@ _require_scratch_xfs_fuzz_fields
 echo "Format and populate"
 _scratch_populate_cached nofill > $seqres.full 2>&1
 
-inode_ver=$(_scratch_xfs_get_metadata_field "core.version" 'sb 0' 'addr rrmapino')
+path="$(_scratch_xfs_find_rgbtree_height 'rmap' 2)" || \
+       _fail "could not find two-level rtrmapbt"
+inode_ver=$(_scratch_xfs_get_metadata_field "core.version" "path -m $path")
 
 echo "Fuzz rtrmapbt recs"
-_scratch_xfs_fuzz_metadata '' 'offline' 'sb 0' 'addr rrmapino' "addr u${inode_ver}.rtrmapbt.ptrs[1]" >> $seqres.full
+_scratch_xfs_fuzz_metadata '' 'offline' "path -m $path" "addr u${inode_ver}.rtrmapbt.ptrs[1]" >> $seqres.full
 echo "Done fuzzing rtrmapbt recs"
 
 # success, all done

diff --git a/tests/xfs/407 b/tests/xfs/407
index ee67a40f67566c497e03ec0dd698dc1a06828138..d0ac44cc3a530c9ef4cc88fa794118bc7d20d7f7 100755 (executable)
--- a/tests/xfs/407
+++ b/tests/xfs/407
@@ -24,10 +24,12 @@ _require_scratch_xfs_fuzz_fields
 echo "Format and populate"
 _scratch_populate_cached nofill > $seqres.full 2>&1
 
-inode_ver=$(_scratch_xfs_get_metadata_field "core.version" 'sb 0' 'addr rrmapino')
+path="$(_scratch_xfs_find_rgbtree_height 'rmap' 1)" || \
+       _fail "could not find two-level rtrmapbt"
+inode_ver=$(_scratch_xfs_get_metadata_field "core.version" "path -m $path")
 
 echo "Fuzz rtrmapbt recs"
-_scratch_xfs_fuzz_metadata '' 'online' 'sb 0' 'addr rrmapino' "addr u${inode_ver}.rtrmapbt.ptrs[1]" >> $seqres.full
+_scratch_xfs_fuzz_metadata '' 'online' "path -m $path" "addr u${inode_ver}.rtrmapbt.ptrs[1]" >> $seqres.full
 echo "Done fuzzing rtrmapbt recs"
 
 # success, all done

diff --git a/tests/xfs/408 b/tests/xfs/408
index 55b061ed4363762f1a72e54e3080f252b62d9f29..0c0134766d48ddcf359448aca2a0fbe63b15aed1 100755 (executable)
--- a/tests/xfs/408
+++ b/tests/xfs/408
@@ -4,7 +4,7 @@
 #
 # FS QA Test No. 408
 #
-# Populate a XFS filesystem and fuzz every rtrmapbt keyptr field.
+# Populate a XFS filesystem and fuzz every rtrmapbt key/pointer field.
 # Use xfs_repair to fix the corruption.
 #
 . ./common/preamble
@@ -24,8 +24,11 @@ _require_scratch_xfs_fuzz_fields
 echo "Format and populate"
 _scratch_populate_cached nofill > $seqres.full 2>&1
 
+path="$(_scratch_xfs_find_rgbtree_height 'rmap' 2)" || \
+       _fail "could not find two-level rtrmapbt"
+
 echo "Fuzz rtrmapbt keyptrs"
-_scratch_xfs_fuzz_metadata '(rtrmapbt)' 'offline' 'sb 0' 'addr rrmapino' >> $seqres.full
+_scratch_xfs_fuzz_metadata '(rtrmapbt)' 'offline' "path -m $path" >> $seqres.full
 echo "Done fuzzing rtrmapbt keyptrs"
 
 # success, all done

diff --git a/tests/xfs/409 b/tests/xfs/409
index 12d7c5cd9d76ee5b648aa9d5ffa71ffe0cebf729..cf7683e7e09b1eaea5a1a034efe413645c55980e 100755 (executable)
--- a/tests/xfs/409
+++ b/tests/xfs/409
@@ -4,7 +4,7 @@
 #
 # FS QA Test No. 409
 #
-# Populate a XFS filesystem and fuzz every rtrmapbt keyptr field.
+# Populate a XFS filesystem and fuzz every rtrmapbt key/pointer field.
 # Use xfs_scrub to fix the corruption.
 #
 . ./common/preamble
@@ -24,8 +24,11 @@ _require_scratch_xfs_fuzz_fields
 echo "Format and populate"
 _scratch_populate_cached nofill > $seqres.full 2>&1
 
+path="$(_scratch_xfs_find_rgbtree_height 'rmap' 2)" || \
+       _fail "could not find two-level rtrmapbt"
+
 echo "Fuzz rtrmapbt keyptrs"
-_scratch_xfs_fuzz_metadata '(rtrmapbt)' 'offline' 'sb 0' 'addr rrmapino' >> $seqres.full
+_scratch_xfs_fuzz_metadata '(rtrmapbt)' 'online' "path -m $path" >> $seqres.full
 echo "Done fuzzing rtrmapbt keyptrs"
 
 # success, all done

diff --git a/tests/xfs/481 b/tests/xfs/481
index bc36beeec657facbfcd0f475b400f911103d959c..dfa68d1c066a2b2878c7c9f3de2b5920279bb08a 100755 (executable)
--- a/tests/xfs/481
+++ b/tests/xfs/481
@@ -25,10 +25,12 @@ _disable_dmesg_check
 echo "Format and populate"
 _scratch_populate_cached nofill > $seqres.full 2>&1
 
-inode_ver=$(_scratch_xfs_get_metadata_field "core.version" 'sb 0' 'addr rrmapino')
+path="$(_scratch_xfs_find_rgbtree_height 'rmap' 2)" || \
+       _fail "could not find two-level rtrmapbt"
+inode_ver=$(_scratch_xfs_get_metadata_field "core.version" "path -m $path")
 
 echo "Fuzz rtrmapbt recs"
-_scratch_xfs_fuzz_metadata '' 'none' 'sb 0' 'addr rrmapino' "addr u${inode_ver}.rtrmapbt.ptrs[1]" >> $seqres.full
+_scratch_xfs_fuzz_metadata '' 'none' "path -m $path" "addr u${inode_ver}.rtrmapbt.ptrs[1]" >> $seqres.full
 echo "Done fuzzing rtrmapbt recs"
 
 # success, all done

diff --git a/tests/xfs/482 b/tests/xfs/482
index 66e44efd1a51921a45b524a34baaf4f84479349b..c551e37fe94b39a5c358e711a0c40e31e5eaa3cc 100755 (executable)
--- a/tests/xfs/482
+++ b/tests/xfs/482
@@ -4,7 +4,7 @@
 #
 # FS QA Test No. 482
 #
-# Populate a XFS filesystem and fuzz every rtrmapbt keyptr field.
+# Populate a XFS filesystem and fuzz every rtrmapbt key/pointer field.
 # Do not fix the filesystem, to test metadata verifiers.
 
 . ./common/preamble
@@ -25,8 +25,11 @@ _disable_dmesg_check
 echo "Format and populate"
 _scratch_populate_cached nofill > $seqres.full 2>&1
 
+path="$(_scratch_xfs_find_rgbtree_height 'rmap' 2)" || \
+       _fail "could not find two-level rtrmapbt"
+
 echo "Fuzz rtrmapbt keyptrs"
-_scratch_xfs_fuzz_metadata '(rtrmapbt)' 'offline' 'sb 0' 'addr rrmapino' >> $seqres.full
+_scratch_xfs_fuzz_metadata '(rtrmapbt)' 'offline' "path -m $path" >> $seqres.full
 echo "Done fuzzing rtrmapbt keyptrs"
 
 # success, all done