4:02 a.m.
This series adds new APIs to support btrfs inspect-internal.
v2:
- use full name of btrfs command as inspect-internal
Hu Tao (4):
New API: btrfs_inspect_internal_rootid
New API: btrfs_inspect_internal_subvolid_resolve
New API: btrfs_inspect_internal_inode_resolve
New API: btrfs_inspect_internal_logical_resolve
daemon/btrfs.c | 161 +++++++++++++++++++++++++++++++++++++++++++++++++++
generator/actions.ml | 56 ++++++++++++++++++
src/MAX_PROC_NR | 2 +-
3 files changed, 218 insertions(+), 1 deletion(-)
--
2.1.0
4:02 a.m.
New subject: [PATCH v2 1/4] New API: btrfs_inspect_internal_rootid
From: Hu Tao <hutao(a)cn.fujitsu.com>
Signed-off-by: Hu Tao <hutao(a)cn.fujitsu.com>
Signed-off-by: Chen Hanxiao <chenhanxiao(a)cn.fujitsu.com>
---
daemon/btrfs.c | 38 ++++++++++++++++++++++++++++++++++++++
generator/actions.ml | 15 +++++++++++++++
src/MAX_PROC_NR | 2 +-
3 files changed, 54 insertions(+), 1 deletion(-)
diff --git a/daemon/btrfs.c b/daemon/btrfs.c
index 6b93973..e1f617d 100644
--- a/daemon/btrfs.c
+++ b/daemon/btrfs.c
@@ -1929,3 +1929,41 @@ error:
free (ret);
return NULL;
}
+
+int64_t
+do_btrfs_inspect_internal_rootid (const char *path)
+{
+ const size_t MAX_ARGS = 64;
+ const char *argv[MAX_ARGS];
+ size_t i = 0;
+ CLEANUP_FREE char *path_buf = NULL;
+ CLEANUP_FREE char *err = NULL;
+ CLEANUP_FREE char *out = NULL;
+ int r;
+ int64_t ret;
+
+ path_buf = sysroot_path (path);
+ if (path_buf == NULL) {
+ reply_with_perror ("malloc");
+ return -1;
+ }
+
+ ADD_ARG (argv, i, str_btrfs);
+ ADD_ARG (argv, i, "inspect-internal");
+ ADD_ARG (argv, i, "rootid");
+ ADD_ARG (argv, i, path_buf);
+ ADD_ARG (argv, i, NULL);
+
+ r = commandv (&out, &err, argv);
+ if (r == -1) {
+ reply_with_error ("%s: %s", path, err);
+ return -1;
+ }
+
+ if (sscanf (out, "%" SCNi64, &ret) != 1) {
+ reply_with_error ("%s: could not parse rootid: %s.", argv[0], out);
+ return -1;
+ }
+
+ return ret;
+}
diff --git a/generator/actions.ml b/generator/actions.ml
index c995787..be4cc98 100644
--- a/generator/actions.ml
+++ b/generator/actions.ml
@@ -12475,6 +12475,21 @@ Show the status of a running or paused balance on a btrfs
filesystem." };
longdesc = "\
Show status of running or finished scrub on a btrfs filesystem." };
+ { defaults with
+ name = "btrfs_inspect_internal_rootid";
+ style = RInt64 "id", [Pathname "path"], [];
+ proc_nr = Some 450;
+ optional = Some "btrfs"; camel_name = "BTRFSInspectRootid";
+ tests = [
+ InitPartition, Always, TestRun (
+ [["mkfs_btrfs"; "/dev/sda1"; ""; "";
"NOARG"; ""; "NOARG"; "NOARG"; "";
""];
+ ["mount"; "/dev/sda1"; "/"];
+ ["btrfs_inspect_internal_rootid"; "/"]]), [];
+ ];
+ shortdesc = "get tree ID of the containing subvolume of path";
+ longdesc = "\
+Get tree ID of the containing subvolume of path." };
+
]
(* Non-API meta-commands available only in guestfish.
diff --git a/src/MAX_PROC_NR b/src/MAX_PROC_NR
index 2b20fd0..29ba0df 100644
--- a/src/MAX_PROC_NR
+++ b/src/MAX_PROC_NR
@@ -1 +1 @@
-449
+450
--
2.1.0
4:02 a.m.
New subject: [PATCH v2 2/4] New API: btrfs_inspect_internal_subvolid_resolve
From: Hu Tao <hutao(a)cn.fujitsu.com>
Signed-off-by: Hu Tao <hutao(a)cn.fujitsu.com>
Signed-off-by: Chen Hanxiao <chenhanxiao(a)cn.fujitsu.com>
---
daemon/btrfs.c | 41 +++++++++++++++++++++++++++++++++++++++++
generator/actions.ml | 16 ++++++++++++++++
src/MAX_PROC_NR | 2 +-
3 files changed, 58 insertions(+), 1 deletion(-)
diff --git a/daemon/btrfs.c b/daemon/btrfs.c
index e1f617d..d460c19 100644
--- a/daemon/btrfs.c
+++ b/daemon/btrfs.c
@@ -1967,3 +1967,44 @@ do_btrfs_inspect_internal_rootid (const char *path)
return ret;
}
+
+char *
+do_btrfs_inspect_internal_subvolid_resolve (int64_t id, const char *fs)
+{
+ const size_t MAX_ARGS = 64;
+ const char *argv[MAX_ARGS];
+ size_t i = 0;
+ CLEANUP_FREE char *fs_buf = NULL;
+ CLEANUP_FREE char *err = NULL;
+ char *out;
+ size_t len;
+ int r;
+ char id_str[32];
+
+ fs_buf = sysroot_path (fs);
+ if (fs_buf == NULL) {
+ reply_with_perror ("malloc");
+ return NULL;
+ }
+
+ ADD_ARG (argv, i, str_btrfs);
+ ADD_ARG (argv, i, "inspect-internal");
+ ADD_ARG (argv, i, "subvolid-resolve");
+ snprintf (id_str, sizeof id_str, "%" PRIi64, id);
+ ADD_ARG (argv, i, id_str);
+ ADD_ARG (argv, i, fs_buf);
+ ADD_ARG (argv, i, NULL);
+
+ r = commandv (&out, &err, argv);
+ if (r == -1) {
+ reply_with_error ("%s: %s", fs, err);
+ return NULL;
+ }
+
+ /* Trim trailing '\n' */
+ len = strlen (out);
+ if (len > 0 && out[len-1] == '\n')
+ out[len-1] = '\0';
+
+ return out;
+}
diff --git a/generator/actions.ml b/generator/actions.ml
index be4cc98..e404f9f 100644
--- a/generator/actions.ml
+++ b/generator/actions.ml
@@ -12490,6 +12490,22 @@ Show status of running or finished scrub on a btrfs
filesystem." };
longdesc = "\
Get tree ID of the containing subvolume of path." };
+ { defaults with
+ name = "btrfs_inspect_internal_subvolid_resolve";
+ style = RString "path", [Int64 "id"; Pathname "fs"],
[];
+ proc_nr = Some 451;
+ optional = Some "btrfs"; camel_name =
"BTRFSInspectInternalSubvolIdResolve";
+ tests = [
+ InitPartition, Always, TestRun (
+ [["mkfs_btrfs"; "/dev/sda1"; ""; "";
"NOARG"; ""; "NOARG"; "NOARG"; "";
""];
+ ["mount"; "/dev/sda1"; "/"];
+ ["btrfs_subvolume_create"; "/sub1"; "NOARG"];
+ ["btrfs_inspect_internal_subvolid_resolve"; "256";
"/"]]), [];
+ ];
+ shortdesc = "get path for the given subvolume ID";
+ longdesc = "\
+Get path on a btrfs filesystem for the given subvolume ID." };
+
]
(* Non-API meta-commands available only in guestfish.
diff --git a/src/MAX_PROC_NR b/src/MAX_PROC_NR
index 29ba0df..4619a8a 100644
--- a/src/MAX_PROC_NR
+++ b/src/MAX_PROC_NR
@@ -1 +1 @@
-450
+451
--
2.1.0
4:02 a.m.
New subject: [PATCH v2 3/4] New API: btrfs_inspect_internal_inode_resolve
From: Hu Tao <hutao(a)cn.fujitsu.com>
Signed-off-by: Hu Tao <hutao(a)cn.fujitsu.com>
Signed-off-by: Chen Hanxiao <chenhanxiao(a)cn.fujitsu.com>
---
daemon/btrfs.c | 41 +++++++++++++++++++++++++++++++++++++++++
generator/actions.ml | 15 +++++++++++++++
src/MAX_PROC_NR | 2 +-
3 files changed, 57 insertions(+), 1 deletion(-)
diff --git a/daemon/btrfs.c b/daemon/btrfs.c
index d460c19..2c2eb57 100644
--- a/daemon/btrfs.c
+++ b/daemon/btrfs.c
@@ -2008,3 +2008,44 @@ do_btrfs_inspect_internal_subvolid_resolve (int64_t id, const char
*fs)
return out;
}
+
+char *
+do_btrfs_inspect_internal_inode_resolve (int64_t inode, const char *fs)
+{
+ const size_t MAX_ARGS = 64;
+ const char *argv[MAX_ARGS];
+ size_t i = 0;
+ CLEANUP_FREE char *fs_buf = NULL;
+ CLEANUP_FREE char *err = NULL;
+ char *out;
+ size_t len;
+ int r;
+ char inode_str[32];
+
+ fs_buf = sysroot_path (fs);
+ if (fs_buf == NULL) {
+ reply_with_perror ("malloc");
+ return NULL;
+ }
+
+ ADD_ARG (argv, i, str_btrfs);
+ ADD_ARG (argv, i, "inspect-internal");
+ ADD_ARG (argv, i, "inode-resolve");
+ snprintf (inode_str, sizeof inode_str, "%" PRIi64, inode);
+ ADD_ARG (argv, i, inode_str);
+ ADD_ARG (argv, i, fs_buf);
+ ADD_ARG (argv, i, NULL);
+
+ r = commandv (&out, &err, argv);
+ if (r == -1) {
+ reply_with_error ("%s: %s", fs, err);
+ return NULL;
+ }
+
+ /* Trim trailing '\n' */
+ len = strlen (out);
+ if (len > 0 && out[len-1] == '\n')
+ out[len-1] = '\0';
+
+ return out;
+}
diff --git a/generator/actions.ml b/generator/actions.ml
index e404f9f..0014c7d 100644
--- a/generator/actions.ml
+++ b/generator/actions.ml
@@ -12506,6 +12506,21 @@ Get tree ID of the containing subvolume of path." };
longdesc = "\
Get path on a btrfs filesystem for the given subvolume ID." };
+ { defaults with
+ name = "btrfs_inspect_internal_inode_resolve";
+ style = RString "path", [Int64 "inode"; Pathname "fs"],
[];
+ proc_nr = Some 452;
+ optional = Some "btrfs"; camel_name =
"BTRFSInspectInternalInodeResolve";
+ tests = [
+ InitPartition, Always, TestRun (
+ [["mkfs_btrfs"; "/dev/sda1"; ""; "";
"NOARG"; ""; "NOARG"; "NOARG"; "";
""];
+ ["mount"; "/dev/sda1"; "/"];
+ ["btrfs_inspect_internal_inode_resolve"; "256";
"/"]]), [];
+ ];
+ shortdesc = "get path for the given inode";
+ longdesc = "\
+Get path on a btrfs filesystem for the given inode." };
+
]
(* Non-API meta-commands available only in guestfish.
diff --git a/src/MAX_PROC_NR b/src/MAX_PROC_NR
index 4619a8a..8670c73 100644
--- a/src/MAX_PROC_NR
+++ b/src/MAX_PROC_NR
@@ -1 +1 @@
-451
+452
--
2.1.0
4:02 a.m.
New subject: [PATCH v2 4/4] New API: btrfs_inspect_internal_logical_resolve
From: Hu Tao <hutao(a)cn.fujitsu.com>
Signed-off-by: Hu Tao <hutao(a)cn.fujitsu.com>
Signed-off-by: Chen Hanxiao <chenhanxiao(a)cn.fujitsu.com>
---
daemon/btrfs.c | 41 +++++++++++++++++++++++++++++++++++++++++
generator/actions.ml | 10 ++++++++++
src/MAX_PROC_NR | 2 +-
3 files changed, 52 insertions(+), 1 deletion(-)
diff --git a/daemon/btrfs.c b/daemon/btrfs.c
index 2c2eb57..d84c28e 100644
--- a/daemon/btrfs.c
+++ b/daemon/btrfs.c
@@ -2049,3 +2049,44 @@ do_btrfs_inspect_internal_inode_resolve (int64_t inode, const char
*fs)
return out;
}
+
+char *
+do_btrfs_inspect_internal_logical_resolve (int64_t logical, const char *fs)
+{
+ const size_t MAX_ARGS = 64;
+ const char *argv[MAX_ARGS];
+ size_t i = 0;
+ CLEANUP_FREE char *fs_buf = NULL;
+ CLEANUP_FREE char *err = NULL;
+ char *out;
+ size_t len;
+ int r;
+ char logical_str[32];
+
+ fs_buf = sysroot_path (fs);
+ if (fs_buf == NULL) {
+ reply_with_perror ("malloc");
+ return NULL;
+ }
+
+ ADD_ARG (argv, i, str_btrfs);
+ ADD_ARG (argv, i, "inspect-internal");
+ ADD_ARG (argv, i, "logical-resolve");
+ snprintf (logical_str, sizeof logical_str, "%" PRIi64, logical);
+ ADD_ARG (argv, i, logical_str);
+ ADD_ARG (argv, i, fs_buf);
+ ADD_ARG (argv, i, NULL);
+
+ r = commandv (&out, &err, argv);
+ if (r == -1) {
+ reply_with_error ("%s: %s", fs, err);
+ return NULL;
+ }
+
+ /* Trim trailing '\n' */
+ len = strlen (out);
+ if (len > 0 && out[len-1] == '\n')
+ out[len-1] = '\0';
+
+ return out;
+}
diff --git a/generator/actions.ml b/generator/actions.ml
index 0014c7d..7b7655d 100644
--- a/generator/actions.ml
+++ b/generator/actions.ml
@@ -12521,6 +12521,16 @@ Get path on a btrfs filesystem for the given subvolume ID."
};
longdesc = "\
Get path on a btrfs filesystem for the given inode." };
+ { defaults with
+ name = "btrfs_inspect_internal_logical_resolve";
+ style = RString "path", [Int64 "logical"; Pathname
"fs"], [];
+ proc_nr = Some 453;
+ optional = Some "btrfs"; camel_name =
"BTRFSInspectInternalLogicalResolve";
+ test_excuse = "can't determine a valid logical address for test";
+ shortdesc = "get path for the given logical address";
+ longdesc = "\
+Get path on a btrfs filesystem for the logical address." };
+
]
(* Non-API meta-commands available only in guestfish.
diff --git a/src/MAX_PROC_NR b/src/MAX_PROC_NR
index 8670c73..534b992 100644
--- a/src/MAX_PROC_NR
+++ b/src/MAX_PROC_NR
@@ -1 +1 @@
-452
+453
--
2.1.0
9:11 p.m.
New subject: [PATCH v2 0/4] btrfs: add support to btrfs inspect-internal
-----Original Message-----
From: libguestfs-bounces(a)redhat.com [mailto:libguestfs-bounces@redhat.com] On
Behalf Of Chen Hanxiao
Sent: Saturday, February 21, 2015 6:02 PM
To: libguestfs(a)redhat.com
Subject: [Libguestfs] [PATCH v2 0/4] btrfs: add support to btrfs inspect-internal
This series adds new APIs to support btrfs inspect-internal.
v2:
- use full name of btrfs command as inspect-internal
Hu Tao (4):
New API: btrfs_inspect_internal_rootid
New API: btrfs_inspect_internal_subvolid_resolve
New API: btrfs_inspect_internal_inode_resolve
New API: btrfs_inspect_internal_logical_resolve
daemon/btrfs.c | 161 +++++++++++++++++++++++++++++++++++++++++++++++++++
generator/actions.ml | 56 ++++++++++++++++++
src/MAX_PROC_NR | 2 +-
3 files changed, 218 insertions(+), 1 deletion(-)
--
Hi,
I missed the previous thread that Rich and Hu had come to a conclusion
that we should not expose this debug command.
Please ignore this series.
Thanks,
- Chen
3557
days inactive
3562
days old
5 comments
2 participants
participants (2)
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Chen Hanxiao -
Chen, Hanxiao