diff options
| author | Sunil Mushran <sunil.mushran@oracle.com> | 2008-03-10 22:16:22 (GMT) |
|---|---|---|
| committer | Mark Fasheh <mfasheh@suse.com> | 2008-04-18 15:56:08 (GMT) |
| commit | 6325b4a22b8f5e40ea9353288b3d6a32181f9718 (patch) | |
| tree | 3a76692cc5c1c7dfa9d7341ea8b07cb7eb4dadd0 /fs/ocfs2/dlm/dlmdebug.c | |
| parent | 29576f8bb54045be944ba809d4fca1ad77c94165 (diff) | |
| download | linux-6325b4a22b8f5e40ea9353288b3d6a32181f9718.tar.xz | |
ocfs2/dlm: Create debugfs dirs
This patch creates the debugfs directories that will hold the
files to be used to dump the dlm state.
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2/dlm/dlmdebug.c')
| -rw-r--r-- | fs/ocfs2/dlm/dlmdebug.c | 50 |
1 files changed, 49 insertions, 1 deletions
diff --git a/fs/ocfs2/dlm/dlmdebug.c b/fs/ocfs2/dlm/dlmdebug.c index 64239b3..62e2a4c 100644 --- a/fs/ocfs2/dlm/dlmdebug.c +++ b/fs/ocfs2/dlm/dlmdebug.c @@ -30,6 +30,7 @@ #include <linux/utsname.h> #include <linux/sysctl.h> #include <linux/spinlock.h> +#include <linux/debugfs.h> #include "cluster/heartbeat.h" #include "cluster/nodemanager.h" @@ -37,8 +38,8 @@ #include "dlmapi.h" #include "dlmcommon.h" - #include "dlmdomain.h" +#include "dlmdebug.h" #define MLOG_MASK_PREFIX ML_DLM #include "cluster/masklog.h" @@ -266,3 +267,50 @@ const char *dlm_errname(enum dlm_status err) return dlm_errnames[err]; } EXPORT_SYMBOL_GPL(dlm_errname); + + +#ifdef CONFIG_DEBUG_FS + +static struct dentry *dlm_debugfs_root = NULL; + +#define DLM_DEBUGFS_DIR "o2dlm" + +/* subroot - domain dir */ +int dlm_create_debugfs_subroot(struct dlm_ctxt *dlm) +{ + dlm->dlm_debugfs_subroot = debugfs_create_dir(dlm->name, + dlm_debugfs_root); + if (!dlm->dlm_debugfs_subroot) { + mlog_errno(-ENOMEM); + goto bail; + } + + return 0; +bail: + dlm_destroy_debugfs_subroot(dlm); + return -ENOMEM; +} + +void dlm_destroy_debugfs_subroot(struct dlm_ctxt *dlm) +{ + if (dlm->dlm_debugfs_subroot) + debugfs_remove(dlm->dlm_debugfs_subroot); +} + +/* debugfs root */ +int dlm_create_debugfs_root(void) +{ + dlm_debugfs_root = debugfs_create_dir(DLM_DEBUGFS_DIR, NULL); + if (!dlm_debugfs_root) { + mlog_errno(-ENOMEM); + return -ENOMEM; + } + return 0; +} + +void dlm_destroy_debugfs_root(void) +{ + if (dlm_debugfs_root) + debugfs_remove(dlm_debugfs_root); +} +#endif /* CONFIG_DEBUG_FS */ |