From: Bobi Jam <bobijam...@intel.com> Use cl_object_operations::coo_getstripe() to handle LL_IOC_LOV_GETSTRIPE ops.
Signed-off-by: Bobi Jam <bobijam...@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5823 Reviewed-on: http://review.whamcloud.com/12452 Reviewed-by: John L. Hammond <john.hamm...@intel.com> Reviewed-by: Jinshan Xiong <jinshan.xi...@intel.com> Reviewed-by: Oleg Drokin <oleg.dro...@intel.com> Signed-off-by: James Simmons <jsimm...@infradead.org> --- drivers/staging/lustre/lustre/include/cl_object.h | 7 +++ drivers/staging/lustre/lustre/llite/file.c | 38 +++++++++--------- .../staging/lustre/lustre/lov/lov_cl_internal.h | 6 +++ drivers/staging/lustre/lustre/lov/lov_internal.h | 2 - drivers/staging/lustre/lustre/lov/lov_obd.c | 3 - drivers/staging/lustre/lustre/lov/lov_object.c | 35 +++++++++++++---- drivers/staging/lustre/lustre/lov/lov_pack.c | 40 +++++++++++++------- drivers/staging/lustre/lustre/obdclass/cl_object.c | 21 ++++++++++ 8 files changed, 105 insertions(+), 47 deletions(-) diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index f360ec9..c1bcff8 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -395,6 +395,11 @@ struct cl_object_operations { * mainly pages and locks. */ int (*coo_prune)(const struct lu_env *env, struct cl_object *obj); + /** + * Object getstripe method. + */ + int (*coo_getstripe)(const struct lu_env *env, struct cl_object *obj, + struct lov_user_md __user *lum); }; /** @@ -2174,6 +2179,8 @@ int cl_conf_set(const struct lu_env *env, struct cl_object *obj, const struct cl_object_conf *conf); int cl_object_prune(const struct lu_env *env, struct cl_object *obj); void cl_object_kill(const struct lu_env *env, struct cl_object *obj); +int cl_object_getstripe(const struct lu_env *env, struct cl_object *obj, + struct lov_user_md __user *lum); /** * Returns true, iff \a o0 and \a o1 are slices of the same object. diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index 0b3b387..2cb0b65 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -1449,6 +1449,22 @@ static int ll_lov_setea(struct inode *inode, struct file *file, return rc; } +static int ll_file_getstripe(struct inode *inode, + struct lov_user_md __user *lum) +{ + struct lu_env *env; + int refcheck; + int rc; + + env = cl_env_get(&refcheck); + if (IS_ERR(env)) + return PTR_ERR(env); + + rc = cl_object_getstripe(env, ll_i2info(inode)->lli_clob, lum); + cl_env_put(env, &refcheck); + return rc; +} + static int ll_lov_setstripe(struct inode *inode, struct file *file, unsigned long arg) { @@ -1466,35 +1482,18 @@ static int ll_lov_setstripe(struct inode *inode, struct file *file, lum_size); cl_lov_delay_create_clear(&file->f_flags); if (rc == 0) { - struct lov_stripe_md *lsm; __u32 gen; put_user(0, &lum->lmm_stripe_count); ll_layout_refresh(inode, &gen); - lsm = ccc_inode_lsm_get(inode); - rc = obd_iocontrol(LL_IOC_LOV_GETSTRIPE, ll_i2dtexp(inode), - 0, lsm, lum); - ccc_inode_lsm_put(inode, lsm); + rc = ll_file_getstripe(inode, (struct lov_user_md __user *)arg); } kfree(klum); return rc; } -static int ll_lov_getstripe(struct inode *inode, unsigned long arg) -{ - struct lov_stripe_md *lsm; - int rc = -ENODATA; - - lsm = ccc_inode_lsm_get(inode); - if (lsm) - rc = obd_iocontrol(LL_IOC_LOV_GETSTRIPE, ll_i2dtexp(inode), 0, - lsm, (void __user *)arg); - ccc_inode_lsm_put(inode, lsm); - return rc; -} - static int ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg) { @@ -2233,7 +2232,8 @@ ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) return rc; } case LL_IOC_LOV_GETSTRIPE: - return ll_lov_getstripe(inode, arg); + return ll_file_getstripe(inode, + (struct lov_user_md __user *)arg); case FSFILT_IOC_FIEMAP: return ll_ioctl_fiemap(inode, arg); case FSFILT_IOC_GETFLAGS: diff --git a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h index 43d1a3f..ec40cf2 100644 --- a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h +++ b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h @@ -556,6 +556,8 @@ struct lov_lock_link *lov_lock_link_find(const struct lu_env *env, struct lovsub_lock *sub); struct lov_io_sub *lov_page_subio(const struct lu_env *env, struct lov_io *lio, const struct cl_page_slice *slice); + +struct lov_stripe_md *lov_lsm_addref(struct lov_object *lov); int lov_page_stripe(const struct cl_page *page); #define lov_foreach_target(lov, var) \ @@ -747,6 +749,10 @@ static inline struct lov_layout_raid0 *lov_r0(struct lov_object *lov) return &lov->u.raid0; } +/* lov_pack.c */ +int lov_getstripe(struct lov_object *obj, struct lov_stripe_md *lsm, + struct lov_user_md __user *lump); + /** @} lov */ #endif diff --git a/drivers/staging/lustre/lustre/lov/lov_internal.h b/drivers/staging/lustre/lustre/lov/lov_internal.h index 0e5fc2e..07e5ede 100644 --- a/drivers/staging/lustre/lustre/lov/lov_internal.h +++ b/drivers/staging/lustre/lustre/lov/lov_internal.h @@ -190,8 +190,6 @@ int lov_packmd(struct obd_export *exp, struct lov_mds_md **lmm, struct lov_stripe_md *lsm); int lov_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp, struct lov_mds_md *lmm, int lmm_bytes); -int lov_getstripe(struct obd_export *exp, - struct lov_stripe_md *lsm, struct lov_user_md __user *lump); int lov_alloc_memmd(struct lov_stripe_md **lsmp, __u16 stripe_count, int pattern, int magic); int lov_free_memmd(struct lov_stripe_md **lsmp); diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c index 9ab3033..b23016f 100644 --- a/drivers/staging/lustre/lustre/lov/lov_obd.c +++ b/drivers/staging/lustre/lustre/lov/lov_obd.c @@ -1299,9 +1299,6 @@ static int lov_iocontrol(unsigned int cmd, struct obd_export *exp, int len, obd_ioctl_freedata(buf, len); break; } - case LL_IOC_LOV_GETSTRIPE: - rc = lov_getstripe(exp, karg, uarg); - break; case OBD_IOC_QUOTACTL: { struct if_quotactl *qctl = karg; struct lov_tgt_desc *tgt = NULL; diff --git a/drivers/staging/lustre/lustre/lov/lov_object.c b/drivers/staging/lustre/lustre/lov/lov_object.c index 4f766e0..01f95a9 100644 --- a/drivers/staging/lustre/lustre/lov/lov_object.c +++ b/drivers/staging/lustre/lustre/lov/lov_object.c @@ -75,6 +75,13 @@ struct lov_layout_operations { static int lov_layout_wait(const struct lu_env *env, struct lov_object *lov); +void lov_lsm_put(struct cl_object *unused, struct lov_stripe_md *lsm) +{ + if (lsm) + lov_free_memmd(&lsm); +} +EXPORT_SYMBOL(lov_lsm_put); + /***************************************************************************** * * Lov object layout operations. @@ -904,13 +911,30 @@ int lov_lock_init(const struct lu_env *env, struct cl_object *obj, io); } +static int lov_object_getstripe(const struct lu_env *env, struct cl_object *obj, + struct lov_user_md __user *lum) +{ + struct lov_object *lov = cl2lov(obj); + struct lov_stripe_md *lsm; + int rc = 0; + + lsm = lov_lsm_addref(lov); + if (!lsm) + return -ENODATA; + + rc = lov_getstripe(cl2lov(obj), lsm, lum); + lov_lsm_put(obj, lsm); + return rc; +} + static const struct cl_object_operations lov_ops = { .coo_page_init = lov_page_init, .coo_lock_init = lov_lock_init, .coo_io_init = lov_io_init, .coo_attr_get = lov_attr_get, .coo_attr_set = lov_attr_set, - .coo_conf_set = lov_conf_set + .coo_conf_set = lov_conf_set, + .coo_getstripe = lov_object_getstripe }; static const struct lu_object_operations lov_lu_obj_ops = { @@ -947,7 +971,7 @@ struct lu_object *lov_object_alloc(const struct lu_env *env, return obj; } -static struct lov_stripe_md *lov_lsm_addref(struct lov_object *lov) +struct lov_stripe_md *lov_lsm_addref(struct lov_object *lov) { struct lov_stripe_md *lsm = NULL; @@ -978,13 +1002,6 @@ struct lov_stripe_md *lov_lsm_get(struct cl_object *clobj) } EXPORT_SYMBOL(lov_lsm_get); -void lov_lsm_put(struct cl_object *unused, struct lov_stripe_md *lsm) -{ - if (lsm) - lov_free_memmd(&lsm); -} -EXPORT_SYMBOL(lov_lsm_put); - int lov_read_and_clear_async_rc(struct cl_object *clob) { struct lu_object *luobj; diff --git a/drivers/staging/lustre/lustre/lov/lov_pack.c b/drivers/staging/lustre/lustre/lov/lov_pack.c index 595cf16..be6e985 100644 --- a/drivers/staging/lustre/lustre/lov/lov_pack.c +++ b/drivers/staging/lustre/lustre/lov/lov_pack.c @@ -45,6 +45,7 @@ #include "../include/lustre/lustre_user.h" #include "lov_internal.h" +#include "lov_cl_internal.h" void lov_dump_lmm_common(int level, void *lmmp) { @@ -104,11 +105,9 @@ void lov_dump_lmm_v3(int level, struct lov_mds_md_v3 *lmm) * LOVs properly. For now lov_mds_md_size() just assumes one u64 * per stripe. */ -int lov_packmd(struct obd_export *exp, struct lov_mds_md **lmmp, - struct lov_stripe_md *lsm) +int lov_obd_packmd(struct lov_obd *lov, struct lov_mds_md **lmmp, + struct lov_stripe_md *lsm) { - struct obd_device *obd = class_exp2obd(exp); - struct lov_obd *lov = &obd->u.lov; struct lov_mds_md_v1 *lmmv1; struct lov_mds_md_v3 *lmmv3; __u16 stripe_count; @@ -220,6 +219,15 @@ int lov_packmd(struct obd_export *exp, struct lov_mds_md **lmmp, return lmm_size; } +int lov_packmd(struct obd_export *exp, struct lov_mds_md **lmmp, + struct lov_stripe_md *lsm) +{ + struct obd_device *obd = class_exp2obd(exp); + struct lov_obd *lov = &obd->u.lov; + + return lov_obd_packmd(lov, lmmp, lsm); +} + /* Find the max stripecount we should use */ __u16 lov_get_stripecnt(struct lov_obd *lov, __u32 magic, __u16 stripe_count) { @@ -367,16 +375,17 @@ int lov_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp, * the maximum number of OST indices which will fit in the user buffer. * lmm_magic must be LOV_USER_MAGIC. */ -int lov_getstripe(struct obd_export *exp, struct lov_stripe_md *lsm, +int lov_getstripe(struct lov_object *obj, struct lov_stripe_md *lsm, struct lov_user_md __user *lump) { /* * XXX huge struct allocated on stack. */ /* we use lov_user_md_v3 because it is larger than lov_user_md_v1 */ + struct lov_obd *lov; struct lov_user_md_v3 lum; struct lov_mds_md *lmmk = NULL; - int rc, lmm_size; + int rc, lmmk_size, lmm_size; int lum_size; mm_segment_t seg; @@ -396,13 +405,13 @@ int lov_getstripe(struct obd_export *exp, struct lov_stripe_md *lsm, lum_size = sizeof(struct lov_user_md_v1); if (copy_from_user(&lum, lump, lum_size)) { rc = -EFAULT; - goto out_set; + goto out; } if (lum.lmm_magic != LOV_USER_MAGIC_V1 && lum.lmm_magic != LOV_USER_MAGIC_V3 && lum.lmm_magic != LOV_USER_MAGIC_SPECIFIC) { rc = -EINVAL; - goto out_set; + goto out; } if (lum.lmm_stripe_count && @@ -411,11 +420,13 @@ int lov_getstripe(struct obd_export *exp, struct lov_stripe_md *lsm, lum.lmm_stripe_count = lsm->lsm_stripe_count; rc = copy_to_user(lump, &lum, lum_size); rc = -EOVERFLOW; - goto out_set; + goto out; } - rc = lov_packmd(exp, &lmmk, lsm); + lov = lu2lov_dev(obj->lo_cl.co_lu.lo_dev)->ld_lov; + rc = lov_obd_packmd(lov, &lmmk, lsm); if (rc < 0) - goto out_set; + goto out; + lmmk_size = rc; lmm_size = rc; rc = 0; @@ -451,7 +462,7 @@ int lov_getstripe(struct obd_export *exp, struct lov_stripe_md *lsm, lmm_size = lum_size; } else if (lum.lmm_stripe_count < lmmk->lmm_stripe_count) { rc = -EOVERFLOW; - goto out_set; + goto out_free; } /* * Have a difference between lov_mds_md & lov_user_md. @@ -464,8 +475,9 @@ int lov_getstripe(struct obd_export *exp, struct lov_stripe_md *lsm, if (copy_to_user(lump, lmmk, lmm_size)) rc = -EFAULT; - obd_free_diskmd(exp, &lmmk); -out_set: +out_free: + kfree(lmmk); +out: set_fs(seg); return rc; } diff --git a/drivers/staging/lustre/lustre/obdclass/cl_object.c b/drivers/staging/lustre/lustre/obdclass/cl_object.c index bd85455..ef5b1aa 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_object.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_object.c @@ -321,6 +321,27 @@ int cl_object_prune(const struct lu_env *env, struct cl_object *obj) EXPORT_SYMBOL(cl_object_prune); /** + * Get stripe information of this object. + */ +int cl_object_getstripe(const struct lu_env *env, struct cl_object *obj, + struct lov_user_md __user *uarg) +{ + struct lu_object_header *top; + int result = 0; + + top = obj->co_lu.lo_header; + list_for_each_entry(obj, &top->loh_layers, co_lu.lo_linkage) { + if (obj->co_ops->coo_getstripe) { + result = obj->co_ops->coo_getstripe(env, obj, uarg); + if (result) + break; + } + } + return result; +} +EXPORT_SYMBOL(cl_object_getstripe); + +/** * Helper function removing all object locks, and marking object for * deletion. All object pages must have been deleted at this point. * -- 1.7.1
