diff options
| author | Alexander Aring <aahringo@redhat.com> | 2023-03-06 21:48:16 +0100 |
|---|---|---|
| committer | David Teigland <teigland@redhat.com> | 2023-03-06 22:49:07 +0100 |
| commit | e1af8728f600f648be1f552552e834c170a0244c (patch) | |
| tree | 9f0890c486d91392832c8899912d003ed7396f86 /fs/dlm/dlm_internal.h | |
| parent | fs: dlm: change dflags to use atomic bits (diff) | |
| download | linux-e1af8728f600f648be1f552552e834c170a0244c.tar.xz linux-e1af8728f600f648be1f552552e834c170a0244c.zip | |
fs: dlm: move internal flags to atomic ops
This patch will move the lkb_flags value to the recently introduced
lkb_iflags value. For lkb_iflags we use atomic bit operations because
some flags like DLM_IFL_CB_PENDING are used while non rsb lock is held
to avoid issues with other flag manipulations which might run at the
same time we switch to atomic bit operations. Snapshot the bit values to
an uint32_t value is only used for debugging/logging use cases and don't
need to be 100% correct.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/dlm/dlm_internal.h')
| -rw-r--r-- | fs/dlm/dlm_internal.h | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h index cd4f89217ee1..b33473d9e3cf 100644 --- a/fs/dlm/dlm_internal.h +++ b/fs/dlm/dlm_internal.h @@ -194,17 +194,18 @@ struct dlm_args { #define DLM_LKSTS_GRANTED 2 #define DLM_LKSTS_CONVERT 3 -/* lkb_flags */ - -#define DLM_IFL_MSTCPY 0x00010000 -#define DLM_IFL_RESEND 0x00020000 -#define DLM_IFL_DEAD 0x00040000 -#define DLM_IFL_OVERLAP_UNLOCK 0x00080000 -#define DLM_IFL_OVERLAP_CANCEL 0x00100000 -#define DLM_IFL_ENDOFLIFE 0x00200000 -#define DLM_IFL_DEADLOCK_CANCEL 0x01000000 - -#define DLM_IFL_CB_PENDING_BIT 0 +/* lkb_iflags */ + +#define DLM_IFL_MSTCPY_BIT 16 +#define __DLM_IFL_MIN_BIT DLM_IFL_MSTCPY_BIT +#define DLM_IFL_RESEND_BIT 17 +#define DLM_IFL_DEAD_BIT 18 +#define DLM_IFL_OVERLAP_UNLOCK_BIT 19 +#define DLM_IFL_OVERLAP_CANCEL_BIT 20 +#define DLM_IFL_ENDOFLIFE_BIT 21 +#define DLM_IFL_DEADLOCK_CANCEL_BIT 24 +#define DLM_IFL_CB_PENDING_BIT 25 +#define __DLM_IFL_MAX_BIT DLM_IFL_CB_PENDING_BIT /* lkb_dflags */ @@ -235,7 +236,6 @@ struct dlm_lkb { uint32_t lkb_remid; /* lock ID on remote partner */ uint32_t lkb_exflags; /* external flags from caller */ uint32_t lkb_sbflags; /* lksb flags */ - uint32_t lkb_flags; /* internal flags */ unsigned long lkb_dflags; /* distributed flags */ unsigned long lkb_iflags; /* internal flags */ uint32_t lkb_lvbseq; /* lvb sequence number */ @@ -748,6 +748,12 @@ static inline uint32_t dlm_flags_val(const unsigned long *addr, return val; } +static inline uint32_t dlm_iflags_val(const struct dlm_lkb *lkb) +{ + return dlm_flags_val(&lkb->lkb_iflags, __DLM_IFL_MIN_BIT, + __DLM_IFL_MAX_BIT); +} + static inline uint32_t dlm_dflags_val(const struct dlm_lkb *lkb) { return dlm_flags_val(&lkb->lkb_dflags, __DLM_DFL_MIN_BIT, |