diff options
| author | Joel Becker <joel.becker@oracle.com> | 2008-02-01 12:14:57 -0800 |
|---|---|---|
| committer | Mark Fasheh <mfasheh@suse.com> | 2008-04-18 08:56:03 -0700 |
| commit | bd3e76105d4478ab89951a52d1a35250d24a9f16 (patch) | |
| tree | 3a024471d62491f0160031663e0db23f42be37b8 /fs/ocfs2/stackglue.c | |
| parent | 24ef1815e5e13e50196eb1ab8ddc0d783443bdf8 (diff) | |
ocfs2: Use global DLM_ constants in generic code.
The ocfs2 generic code should use the values in <linux/dlmconstants.h>.
stackglue.c will convert them to o2dlm values.
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2/stackglue.c')
| -rw-r--r-- | fs/ocfs2/stackglue.c | 71 |
1 files changed, 64 insertions, 7 deletions
diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c index 4f44f23795f0..99538043fc17 100644 --- a/fs/ocfs2/stackglue.c +++ b/fs/ocfs2/stackglue.c @@ -18,15 +18,65 @@ * General Public License for more details. */ -#include <linux/types.h> -#include <linux/list.h> - -#include "dlm/dlmapi.h" - #include "stackglue.h" static struct ocfs2_locking_protocol *lproto; +/* These should be identical */ +#if (DLM_LOCK_IV != LKM_IVMODE) +# error Lock modes do not match +#endif +#if (DLM_LOCK_NL != LKM_NLMODE) +# error Lock modes do not match +#endif +#if (DLM_LOCK_CR != LKM_CRMODE) +# error Lock modes do not match +#endif +#if (DLM_LOCK_CW != LKM_CWMODE) +# error Lock modes do not match +#endif +#if (DLM_LOCK_PR != LKM_PRMODE) +# error Lock modes do not match +#endif +#if (DLM_LOCK_PW != LKM_PWMODE) +# error Lock modes do not match +#endif +#if (DLM_LOCK_EX != LKM_EXMODE) +# error Lock modes do not match +#endif +static inline int mode_to_o2dlm(int mode) +{ + BUG_ON(mode > LKM_MAXMODE); + + return mode; +} + +#define map_flag(_generic, _o2dlm) \ + if (flags & (_generic)) { \ + flags &= ~(_generic); \ + o2dlm_flags |= (_o2dlm); \ + } +static int flags_to_o2dlm(u32 flags) +{ + int o2dlm_flags = 0; + + map_flag(DLM_LKF_NOQUEUE, LKM_NOQUEUE); + map_flag(DLM_LKF_CANCEL, LKM_CANCEL); + map_flag(DLM_LKF_CONVERT, LKM_CONVERT); + map_flag(DLM_LKF_VALBLK, LKM_VALBLK); + map_flag(DLM_LKF_IVVALBLK, LKM_INVVALBLK); + map_flag(DLM_LKF_ORPHAN, LKM_ORPHAN); + map_flag(DLM_LKF_FORCEUNLOCK, LKM_FORCE); + map_flag(DLM_LKF_TIMEOUT, LKM_TIMEOUT); + map_flag(DLM_LKF_LOCAL, LKM_LOCAL); + + /* map_flag() should have cleared every flag passed in */ + BUG_ON(flags != 0); + + return o2dlm_flags; +} +#undef map_flag + enum dlm_status ocfs2_dlm_lock(struct dlm_ctxt *dlm, int mode, struct dlm_lockstatus *lksb, @@ -35,8 +85,12 @@ enum dlm_status ocfs2_dlm_lock(struct dlm_ctxt *dlm, unsigned int namelen, void *astarg) { + int o2dlm_mode = mode_to_o2dlm(mode); + int o2dlm_flags = flags_to_o2dlm(flags); + BUG_ON(lproto == NULL); - return dlmlock(dlm, mode, lksb, flags, name, namelen, + + return dlmlock(dlm, o2dlm_mode, lksb, o2dlm_flags, name, namelen, lproto->lp_lock_ast, astarg, lproto->lp_blocking_ast); } @@ -46,9 +100,12 @@ enum dlm_status ocfs2_dlm_unlock(struct dlm_ctxt *dlm, u32 flags, void *astarg) { + int o2dlm_flags = flags_to_o2dlm(flags); + BUG_ON(lproto == NULL); - return dlmunlock(dlm, lksb, flags, lproto->lp_unlock_ast, astarg); + return dlmunlock(dlm, lksb, o2dlm_flags, + lproto->lp_unlock_ast, astarg); } |