diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/osc/osc_cl_internal.h')
| -rw-r--r-- | drivers/staging/lustre/lustre/osc/osc_cl_internal.h | 41 |
1 files changed, 26 insertions, 15 deletions
diff --git a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h index 415c27e4ab66..d55d04d0428b 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h @@ -69,10 +69,12 @@ struct osc_io { /** true if this io is lockless. */ int oi_lockless; /** active extents, we know how many bytes is going to be written, - * so having an active extent will prevent it from being fragmented */ + * so having an active extent will prevent it from being fragmented + */ struct osc_extent *oi_active; /** partially truncated extent, we need to hold this extent to prevent - * page writeback from happening. */ + * page writeback from happening. + */ struct osc_extent *oi_trunc; struct obd_info oi_info; @@ -154,7 +156,8 @@ struct osc_object { atomic_t oo_nr_writes; /** Protect extent tree. Will be used to protect - * oo_{read|write}_pages soon. */ + * oo_{read|write}_pages soon. + */ spinlock_t oo_lock; }; @@ -472,7 +475,7 @@ static inline struct osc_thread_info *osc_env_info(const struct lu_env *env) struct osc_thread_info *info; info = lu_context_key_get(&env->le_ctx, &osc_key); - LASSERT(info != NULL); + LASSERT(info); return info; } @@ -481,7 +484,7 @@ static inline struct osc_session *osc_env_session(const struct lu_env *env) struct osc_session *ses; ses = lu_context_key_get(env->le_ses, &osc_session_key); - LASSERT(ses != NULL); + LASSERT(ses); return ses; } @@ -522,7 +525,7 @@ static inline struct cl_object *osc2cl(const struct osc_object *obj) return (struct cl_object *)&obj->oo_cl; } -static inline ldlm_mode_t osc_cl_lock2ldlm(enum cl_lock_mode mode) +static inline enum ldlm_mode osc_cl_lock2ldlm(enum cl_lock_mode mode) { LASSERT(mode == CLM_READ || mode == CLM_WRITE || mode == CLM_GROUP); if (mode == CLM_READ) @@ -533,7 +536,7 @@ static inline ldlm_mode_t osc_cl_lock2ldlm(enum cl_lock_mode mode) return LCK_GROUP; } -static inline enum cl_lock_mode osc_ldlm2cl_lock(ldlm_mode_t mode) +static inline enum cl_lock_mode osc_ldlm2cl_lock(enum ldlm_mode mode) { LASSERT(mode == LCK_PR || mode == LCK_PW || mode == LCK_GROUP); if (mode == LCK_PR) @@ -627,22 +630,26 @@ struct osc_extent { oe_srvlock:1, oe_memalloc:1, /** an ACTIVE extent is going to be truncated, so when this extent - * is released, it will turn into TRUNC state instead of CACHE. */ + * is released, it will turn into TRUNC state instead of CACHE. + */ oe_trunc_pending:1, /** this extent should be written asap and someone may wait for the * write to finish. This bit is usually set along with urgent if * the extent was CACHE state. * fsync_wait extent can't be merged because new extent region may - * exceed fsync range. */ + * exceed fsync range. + */ oe_fsync_wait:1, /** covering lock is being canceled */ oe_hp:1, /** this extent should be written back asap. set if one of pages is - * called by page WB daemon, or sync write or reading requests. */ + * called by page WB daemon, or sync write or reading requests. + */ oe_urgent:1; /** how many grants allocated for this extent. * Grant allocated for this extent. There is no grant allocated - * for reading extents and sync write extents. */ + * for reading extents and sync write extents. + */ unsigned int oe_grants; /** # of dirty pages in this extent */ unsigned int oe_nr_pages; @@ -655,21 +662,25 @@ struct osc_extent { struct osc_page *oe_next_page; /** start and end index of this extent, include start and end * themselves. Page offset here is the page index of osc_pages. - * oe_start is used as keyword for red-black tree. */ + * oe_start is used as keyword for red-black tree. + */ pgoff_t oe_start; pgoff_t oe_end; /** maximum ending index of this extent, this is limited by - * max_pages_per_rpc, lock extent and chunk size. */ + * max_pages_per_rpc, lock extent and chunk size. + */ pgoff_t oe_max_end; /** waitqueue - for those who want to be notified if this extent's - * state has changed. */ + * state has changed. + */ wait_queue_head_t oe_waitq; /** lock covering this extent */ struct cl_lock *oe_osclock; /** terminator of this extent. Must be true if this extent is in IO. */ struct task_struct *oe_owner; /** return value of writeback. If somebody is waiting for this extent, - * this value can be known by outside world. */ + * this value can be known by outside world. + */ int oe_rc; /** max pages per rpc when this extent was created */ unsigned int oe_mppr; |