diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/llite/file.c')
| -rw-r--r-- | drivers/staging/lustre/lustre/llite/file.c | 458 |
1 files changed, 206 insertions, 252 deletions
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index ed1e3f7b4e58..bc534db12431 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -55,6 +55,8 @@ struct ll_file_data *ll_file_data_get(void) struct ll_file_data *fd; OBD_SLAB_ALLOC_PTR_GFP(fd, ll_file_data_slab, __GFP_IO); + if (fd == NULL) + return NULL; fd->fd_write_failed = false; return fd; } @@ -93,8 +95,6 @@ void ll_pack_inode2opdata(struct inode *inode, struct md_op_data *op_data, static void ll_prepare_close(struct inode *inode, struct md_op_data *op_data, struct obd_client_handle *och) { - ENTRY; - op_data->op_attr.ia_valid = ATTR_MODE | ATTR_ATIME | ATTR_ATIME_SET | ATTR_MTIME | ATTR_MTIME_SET | ATTR_CTIME | ATTR_CTIME_SET; @@ -111,7 +111,6 @@ out: ll_pack_inode2opdata(inode, op_data, &och->och_fh); ll_prep_md_op_data(op_data, inode, NULL, NULL, 0, 0, LUSTRE_OPC_ANY, NULL); - EXIT; } static int ll_close_inode_openhandle(struct obd_export *md_exp, @@ -124,7 +123,6 @@ static int ll_close_inode_openhandle(struct obd_export *md_exp, struct obd_device *obd = class_exp2obd(exp); int epoch_close = 1; int rc; - ENTRY; if (obd == NULL) { /* @@ -178,9 +176,7 @@ static int ll_close_inode_openhandle(struct obd_export *md_exp, inode->i_ino, rc); } - EXIT; out: - if (exp_connect_som(exp) && !epoch_close && S_ISREG(inode->i_mode) && (och->och_flags & FMODE_WRITE)) { ll_queue_done_writing(inode, LLIF_DONE_WRITING); @@ -202,7 +198,6 @@ int ll_md_real_close(struct inode *inode, int flags) struct obd_client_handle *och; __u64 *och_usecount; int rc = 0; - ENTRY; if (flags & FMODE_WRITE) { och_p = &lli->lli_mds_write_och; @@ -220,7 +215,7 @@ int ll_md_real_close(struct inode *inode, int flags) if (*och_usecount) { /* There are still users of this handle, so skip freeing it. */ mutex_unlock(&lli->lli_och_mutex); - RETURN(0); + return 0; } och=*och_p; *och_p = NULL; @@ -232,7 +227,7 @@ int ll_md_real_close(struct inode *inode, int flags) inode, och); } - RETURN(rc); + return rc; } int ll_md_close(struct obd_export *md_exp, struct inode *inode, @@ -241,7 +236,6 @@ int ll_md_close(struct obd_export *md_exp, struct inode *inode, struct ll_file_data *fd = LUSTRE_FPRIVATE(file); struct ll_inode_info *lli = ll_i2info(inode); int rc = 0; - ENTRY; /* clear group lock, if present */ if (unlikely(fd->fd_flags & LL_FILE_GROUP_LOCKED)) @@ -287,7 +281,7 @@ int ll_md_close(struct obd_export *md_exp, struct inode *inode, ll_file_data_put(fd); ll_capa_close(inode); - RETURN(rc); + return rc; } /* While this returns an error code, fput() the caller does not, so we need @@ -301,7 +295,6 @@ int ll_file_release(struct inode *inode, struct file *file) struct ll_sb_info *sbi = ll_i2sbi(inode); struct ll_inode_info *lli = ll_i2info(inode); int rc; - ENTRY; CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino, inode->i_generation, inode); @@ -335,7 +328,7 @@ int ll_file_release(struct inode *inode, struct file *file) if (inode->i_sb->s_root == file->f_dentry) { LUSTRE_FPRIVATE(file) = NULL; ll_file_data_put(fd); - RETURN(0); + return 0; } if (!S_ISDIR(inode->i_mode)) { @@ -348,7 +341,7 @@ int ll_file_release(struct inode *inode, struct file *file) if (CFS_FAIL_TIMEOUT_MS(OBD_FAIL_PTLRPC_DUMP_LOG, cfs_fail_val)) libcfs_debug_dumplog(); - RETURN(rc); + return rc; } static int ll_intent_file_open(struct file *file, void *lmm, @@ -362,10 +355,9 @@ static int ll_intent_file_open(struct file *file, void *lmm, struct ptlrpc_request *req; __u32 opc = LUSTRE_OPC_ANY; int rc; - ENTRY; if (!parent) - RETURN(-ENOENT); + return -ENOENT; /* Usually we come here only for NFSD, and we want open lock. But we can also get here with pre 2.6.15 patchless kernels, and in @@ -386,7 +378,7 @@ static int ll_intent_file_open(struct file *file, void *lmm, file->f_dentry->d_inode, name, len, O_RDWR, opc, NULL); if (IS_ERR(op_data)) - RETURN(PTR_ERR(op_data)); + return PTR_ERR(op_data); itp->it_flags |= MDS_OPEN_BY_FID; rc = md_intent_lock(sbi->ll_md_exp, op_data, lmm, lmmsize, itp, @@ -422,7 +414,7 @@ out: it_clear_disposition(itp, DISP_ENQ_COMPLETE); ll_intent_drop_lock(itp); - RETURN(rc); + return rc; } /** @@ -464,7 +456,6 @@ int ll_local_open(struct file *file, struct lookup_intent *it, { struct inode *inode = file->f_dentry->d_inode; struct ll_inode_info *lli = ll_i2info(inode); - ENTRY; LASSERT(!LUSTRE_FPRIVATE(file)); @@ -477,7 +468,7 @@ int ll_local_open(struct file *file, struct lookup_intent *it, rc = ll_och_fill(ll_i2sbi(inode)->ll_md_exp, lli, it, och); if (rc) - RETURN(rc); + return rc; body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); if ((it->it_flags & FMODE_WRITE) && @@ -489,7 +480,7 @@ int ll_local_open(struct file *file, struct lookup_intent *it, LUSTRE_FPRIVATE(file) = fd; ll_readahead_init(inode, &fd->fd_ras); fd->fd_omode = it->it_flags; - RETURN(0); + return 0; } /* Open a file, and (for the very first open) create objects on the OSTs at @@ -514,7 +505,6 @@ int ll_file_open(struct inode *inode, struct file *file) __u64 *och_usecount = NULL; struct ll_file_data *fd; int rc = 0, opendir_set = 0; - ENTRY; CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), flags %o\n", inode->i_ino, inode->i_generation, inode, file->f_flags); @@ -524,7 +514,7 @@ int ll_file_open(struct inode *inode, struct file *file) fd = ll_file_data_get(); if (fd == NULL) - GOTO(out_och_free, rc = -ENOMEM); + GOTO(out_openerr, rc = -ENOMEM); fd->fd_file = file; if (S_ISDIR(inode->i_mode)) { @@ -540,7 +530,7 @@ int ll_file_open(struct inode *inode, struct file *file) if (inode->i_sb->s_root == file->f_dentry) { LUSTRE_FPRIVATE(file) = fd; - RETURN(0); + return 0; } if (!it || !it->d.lustre.it_disposition) { @@ -700,8 +690,6 @@ static int ll_lsm_getattr(struct lov_stripe_md *lsm, struct obd_export *exp, struct obd_info oinfo = { { { 0 } } }; int rc; - ENTRY; - LASSERT(lsm != NULL); oinfo.oi_md = lsm; @@ -736,7 +724,7 @@ static int ll_lsm_getattr(struct lov_stripe_md *lsm, struct obd_export *exp, OBD_MD_FLATIME | OBD_MD_FLMTIME | OBD_MD_FLCTIME | OBD_MD_FLSIZE | OBD_MD_FLDATAVERSION); - RETURN(rc); + return rc; } /** @@ -749,7 +737,6 @@ int ll_inode_getattr(struct inode *inode, struct obdo *obdo, struct obd_capa *capa = ll_mdscapa_get(inode); struct lov_stripe_md *lsm; int rc; - ENTRY; lsm = ccc_inode_lsm_get(inode); rc = ll_lsm_getattr(lsm, ll_i2dtexp(inode), @@ -765,7 +752,7 @@ int ll_inode_getattr(struct inode *inode, struct obdo *obdo, (unsigned long)ll_inode_blksize(inode)); } ccc_inode_lsm_put(inode, lsm); - RETURN(rc); + return rc; } int ll_merge_lvb(const struct lu_env *env, struct inode *inode) @@ -776,8 +763,6 @@ int ll_merge_lvb(const struct lu_env *env, struct inode *inode) struct ost_lvb lvb; int rc = 0; - ENTRY; - ll_inode_size_lock(inode); /* merge timestamps the most recently obtained from mds with timestamps obtained from osts */ @@ -810,7 +795,7 @@ int ll_merge_lvb(const struct lu_env *env, struct inode *inode) } ll_inode_size_unlock(inode); - RETURN(rc); + return rc; } int ll_glimpse_ioctl(struct ll_sb_info *sbi, struct lov_stripe_md *lsm, @@ -860,7 +845,6 @@ ll_file_io_generic(const struct lu_env *env, struct vvp_io_args *args, struct ll_file_data *fd = LUSTRE_FPRIVATE(file); struct cl_io *io; ssize_t result; - ENTRY; restart: io = ccc_env_thread_io(env); @@ -986,15 +970,14 @@ static ssize_t ll_file_aio_read(struct kiocb *iocb, const struct iovec *iov, size_t count; ssize_t result; int refcheck; - ENTRY; result = ll_file_get_iov_count(iov, &nr_segs, &count); if (result) - RETURN(result); + return result; env = cl_env_get(&refcheck); if (IS_ERR(env)) - RETURN(PTR_ERR(env)); + return PTR_ERR(env); args = vvp_env_args(env, IO_NORMAL); args->u.normal.via_iov = (struct iovec *)iov; @@ -1004,7 +987,7 @@ static ssize_t ll_file_aio_read(struct kiocb *iocb, const struct iovec *iov, result = ll_file_io_generic(env, args, iocb->ki_filp, CIT_READ, &iocb->ki_pos, count); cl_env_put(env, &refcheck); - RETURN(result); + return result; } static ssize_t ll_file_read(struct file *file, char *buf, size_t count, @@ -1015,11 +998,10 @@ static ssize_t ll_file_read(struct file *file, char *buf, size_t count, struct kiocb *kiocb; ssize_t result; int refcheck; - ENTRY; env = cl_env_get(&refcheck); if (IS_ERR(env)) - RETURN(PTR_ERR(env)); + return PTR_ERR(env); local_iov = &vvp_env_info(env)->vti_local_iov; kiocb = &vvp_env_info(env)->vti_kiocb; @@ -1027,13 +1009,13 @@ static ssize_t ll_file_read(struct file *file, char *buf, size_t count, local_iov->iov_len = count; init_sync_kiocb(kiocb, file); kiocb->ki_pos = *ppos; - kiocb->ki_left = count; + kiocb->ki_nbytes = count; result = ll_file_aio_read(kiocb, local_iov, 1, kiocb->ki_pos); *ppos = kiocb->ki_pos; cl_env_put(env, &refcheck); - RETURN(result); + return result; } /* @@ -1047,15 +1029,14 @@ static ssize_t ll_file_aio_write(struct kiocb *iocb, const struct iovec *iov, size_t count; ssize_t result; int refcheck; - ENTRY; result = ll_file_get_iov_count(iov, &nr_segs, &count); if (result) - RETURN(result); + return result; env = cl_env_get(&refcheck); if (IS_ERR(env)) - RETURN(PTR_ERR(env)); + return PTR_ERR(env); args = vvp_env_args(env, IO_NORMAL); args->u.normal.via_iov = (struct iovec *)iov; @@ -1065,7 +1046,7 @@ static ssize_t ll_file_aio_write(struct kiocb *iocb, const struct iovec *iov, result = ll_file_io_generic(env, args, iocb->ki_filp, CIT_WRITE, &iocb->ki_pos, count); cl_env_put(env, &refcheck); - RETURN(result); + return result; } static ssize_t ll_file_write(struct file *file, const char *buf, size_t count, @@ -1076,11 +1057,10 @@ static ssize_t ll_file_write(struct file *file, const char *buf, size_t count, struct kiocb *kiocb; ssize_t result; int refcheck; - ENTRY; env = cl_env_get(&refcheck); if (IS_ERR(env)) - RETURN(PTR_ERR(env)); + return PTR_ERR(env); local_iov = &vvp_env_info(env)->vti_local_iov; kiocb = &vvp_env_info(env)->vti_kiocb; @@ -1088,13 +1068,13 @@ static ssize_t ll_file_write(struct file *file, const char *buf, size_t count, local_iov->iov_len = count; init_sync_kiocb(kiocb, file); kiocb->ki_pos = *ppos; - kiocb->ki_left = count; + kiocb->ki_nbytes = count; result = ll_file_aio_write(kiocb, local_iov, 1, kiocb->ki_pos); *ppos = kiocb->ki_pos; cl_env_put(env, &refcheck); - RETURN(result); + return result; } @@ -1110,11 +1090,10 @@ static ssize_t ll_file_splice_read(struct file *in_file, loff_t *ppos, struct vvp_io_args *args; ssize_t result; int refcheck; - ENTRY; env = cl_env_get(&refcheck); if (IS_ERR(env)) - RETURN(PTR_ERR(env)); + return PTR_ERR(env); args = vvp_env_args(env, IO_SPLICE); args->u.splice.via_pipe = pipe; @@ -1122,7 +1101,7 @@ static ssize_t ll_file_splice_read(struct file *in_file, loff_t *ppos, result = ll_file_io_generic(env, args, in_file, CIT_READ, ppos, count); cl_env_put(env, &refcheck); - RETURN(result); + return result; } static int ll_lov_recreate(struct inode *inode, struct ost_id *oi, @@ -1134,14 +1113,13 @@ static int ll_lov_recreate(struct inode *inode, struct ost_id *oi, int lsm_size; int rc = 0; struct lov_stripe_md *lsm = NULL, *lsm2; - ENTRY; OBDO_ALLOC(oa); if (oa == NULL) - RETURN(-ENOMEM); + return -ENOMEM; lsm = ccc_inode_lsm_get(inode); - if (lsm == NULL) + if (!lsm_has_objects(lsm)) GOTO(out, rc = -ENOENT); lsm_size = sizeof(*lsm) + (sizeof(struct lov_oinfo) * @@ -1175,18 +1153,17 @@ static int ll_lov_recreate_obj(struct inode *inode, unsigned long arg) { struct ll_recreate_obj ucreat; struct ost_id oi; - ENTRY; if (!cfs_capable(CFS_CAP_SYS_ADMIN)) - RETURN(-EPERM); + return -EPERM; if (copy_from_user(&ucreat, (struct ll_recreate_obj *)arg, sizeof(ucreat))) - RETURN(-EFAULT); + return -EFAULT; ostid_set_seq_mdt0(&oi); ostid_set_id(&oi, ucreat.lrc_id); - RETURN(ll_lov_recreate(inode, &oi, ucreat.lrc_ost_idx)); + return ll_lov_recreate(inode, &oi, ucreat.lrc_ost_idx); } static int ll_lov_recreate_fid(struct inode *inode, unsigned long arg) @@ -1194,17 +1171,16 @@ static int ll_lov_recreate_fid(struct inode *inode, unsigned long arg) struct lu_fid fid; struct ost_id oi; obd_count ost_idx; - ENTRY; if (!cfs_capable(CFS_CAP_SYS_ADMIN)) - RETURN(-EPERM); + return -EPERM; if (copy_from_user(&fid, (struct lu_fid *)arg, sizeof(fid))) - RETURN(-EFAULT); + return -EFAULT; fid_to_ostid(&fid, &oi); ost_idx = (fid_seq(&fid) >> 16) & 0xffff; - RETURN(ll_lov_recreate(inode, &oi, ost_idx)); + return ll_lov_recreate(inode, &oi, ost_idx); } int ll_lov_setstripe_ea_info(struct inode *inode, struct file *file, @@ -1213,14 +1189,13 @@ int ll_lov_setstripe_ea_info(struct inode *inode, struct file *file, struct lov_stripe_md *lsm = NULL; struct lookup_intent oit = {.it_op = IT_OPEN, .it_flags = flags}; int rc = 0; - ENTRY; lsm = ccc_inode_lsm_get(inode); if (lsm != NULL) { ccc_inode_lsm_put(inode, lsm); CDEBUG(D_IOCTL, "stripe already exists for ino %lu\n", inode->i_ino); - RETURN(-EEXIST); + return -EEXIST; } ll_inode_size_lock(inode); @@ -1237,7 +1212,7 @@ int ll_lov_setstripe_ea_info(struct inode *inode, struct file *file, ll_inode_size_unlock(inode); ll_intent_release(&oit); ccc_inode_lsm_put(inode, lsm); - RETURN(rc); + return rc; out_req_free: ptlrpc_req_finished((struct ptlrpc_request *) oit.d.lustre.it_data); goto out; @@ -1256,13 +1231,13 @@ int ll_lov_getstripe_ea_info(struct inode *inode, const char *filename, rc = ll_get_max_mdsize(sbi, &lmmsize); if (rc) - RETURN(rc); + return rc; op_data = ll_prep_md_op_data(NULL, inode, NULL, filename, strlen(filename), lmmsize, LUSTRE_OPC_ANY, NULL); if (IS_ERR(op_data)) - RETURN(PTR_ERR(op_data)); + return PTR_ERR(op_data); op_data->op_valid = OBD_MD_FLEASIZE | OBD_MD_FLDIREA; rc = md_getattr_name(sbi->ll_md_exp, op_data, &req); @@ -1297,6 +1272,12 @@ int ll_lov_getstripe_ea_info(struct inode *inode, const char *filename, * passing it to userspace. */ if (LOV_MAGIC != cpu_to_le32(LOV_MAGIC)) { + int stripe_count; + + stripe_count = le16_to_cpu(lmm->lmm_stripe_count); + if (le32_to_cpu(lmm->lmm_pattern) & LOV_PATTERN_F_RELEASED) + stripe_count = 0; + /* if function called for directory - we should * avoid swab not existent lsm objects */ if (lmm->lmm_magic == cpu_to_le32(LOV_MAGIC_V1)) { @@ -1304,13 +1285,13 @@ int ll_lov_getstripe_ea_info(struct inode *inode, const char *filename, if (S_ISREG(body->mode)) lustre_swab_lov_user_md_objects( ((struct lov_user_md_v1 *)lmm)->lmm_objects, - ((struct lov_user_md_v1 *)lmm)->lmm_stripe_count); + stripe_count); } else if (lmm->lmm_magic == cpu_to_le32(LOV_MAGIC_V3)) { lustre_swab_lov_user_md_v3((struct lov_user_md_v3 *)lmm); if (S_ISREG(body->mode)) lustre_swab_lov_user_md_objects( ((struct lov_user_md_v3 *)lmm)->lmm_objects, - ((struct lov_user_md_v3 *)lmm)->lmm_stripe_count); + stripe_count); } } @@ -1329,24 +1310,23 @@ static int ll_lov_setea(struct inode *inode, struct file *file, int lum_size = sizeof(struct lov_user_md) + sizeof(struct lov_user_ost_data); int rc; - ENTRY; if (!cfs_capable(CFS_CAP_SYS_ADMIN)) - RETURN(-EPERM); + return -EPERM; OBD_ALLOC_LARGE(lump, lum_size); if (lump == NULL) - RETURN(-ENOMEM); + return -ENOMEM; if (copy_from_user(lump, (struct lov_user_md *)arg, lum_size)) { OBD_FREE_LARGE(lump, lum_size); - RETURN(-EFAULT); + return -EFAULT; } rc = ll_lov_setstripe_ea_info(inode, file, flags, lump, lum_size); OBD_FREE_LARGE(lump, lum_size); - RETURN(rc); + return rc; } static int ll_lov_setstripe(struct inode *inode, struct file *file, @@ -1358,17 +1338,16 @@ static int ll_lov_setstripe(struct inode *inode, struct file *file, struct lov_user_md_v3 *lumv3p = (struct lov_user_md_v3 *)arg; int lum_size, rc; int flags = FMODE_WRITE; - ENTRY; /* first try with v1 which is smaller than v3 */ lum_size = sizeof(struct lov_user_md_v1); if (copy_from_user(lumv1, lumv1p, lum_size)) - RETURN(-EFAULT); + return -EFAULT; if (lumv1->lmm_magic == LOV_USER_MAGIC_V3) { lum_size = sizeof(struct lov_user_md_v3); if (copy_from_user(&lumv3, lumv3p, lum_size)) - RETURN(-EFAULT); + return -EFAULT; } rc = ll_lov_setstripe_ea_info(inode, file, flags, lumv1, lum_size); @@ -1384,21 +1363,20 @@ static int ll_lov_setstripe(struct inode *inode, struct file *file, 0, lsm, (void *)arg); ccc_inode_lsm_put(inode, lsm); } - RETURN(rc); + return rc; } static int ll_lov_getstripe(struct inode *inode, unsigned long arg) { struct lov_stripe_md *lsm; int rc = -ENODATA; - ENTRY; lsm = ccc_inode_lsm_get(inode); if (lsm != NULL) rc = obd_iocontrol(LL_IOC_LOV_GETSTRIPE, ll_i2dtexp(inode), 0, lsm, (void *)arg); ccc_inode_lsm_put(inode, lsm); - RETURN(rc); + return rc; } int ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg) @@ -1407,17 +1385,16 @@ int ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg) struct ll_file_data *fd = LUSTRE_FPRIVATE(file); struct ccc_grouplock grouplock; int rc; - ENTRY; if (ll_file_nolock(file)) - RETURN(-EOPNOTSUPP); + return -EOPNOTSUPP; spin_lock(&lli->lli_lock); if (fd->fd_flags & LL_FILE_GROUP_LOCKED) { CWARN("group lock already existed with gid %lu\n", fd->fd_grouplock.cg_gid); spin_unlock(&lli->lli_lock); - RETURN(-EINVAL); + return -EINVAL; } LASSERT(fd->fd_grouplock.cg_lock == NULL); spin_unlock(&lli->lli_lock); @@ -1425,14 +1402,14 @@ int ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg) rc = cl_get_grouplock(cl_i2info(inode)->lli_clob, arg, (file->f_flags & O_NONBLOCK), &grouplock); if (rc) - RETURN(rc); + return rc; spin_lock(&lli->lli_lock); if (fd->fd_flags & LL_FILE_GROUP_LOCKED) { spin_unlock(&lli->lli_lock); CERROR("another thread just won the race\n"); cl_put_grouplock(&grouplock); - RETURN(-EINVAL); + return -EINVAL; } fd->fd_flags |= LL_FILE_GROUP_LOCKED; @@ -1440,7 +1417,7 @@ int ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg) spin_unlock(&lli->lli_lock); CDEBUG(D_INFO, "group lock %lu obtained\n", arg); - RETURN(0); + return 0; } int ll_put_grouplock(struct inode *inode, struct file *file, unsigned long arg) @@ -1448,13 +1425,12 @@ int ll_put_grouplock(struct inode *inode, struct file *file, unsigned long arg) struct ll_inode_info *lli = ll_i2info(inode); struct ll_file_data *fd = LUSTRE_FPRIVATE(file); struct ccc_grouplock grouplock; - ENTRY; spin_lock(&lli->lli_lock); if (!(fd->fd_flags & LL_FILE_GROUP_LOCKED)) { spin_unlock(&lli->lli_lock); CWARN("no group lock held\n"); - RETURN(-EINVAL); + return -EINVAL; } LASSERT(fd->fd_grouplock.cg_lock != NULL); @@ -1462,7 +1438,7 @@ int ll_put_grouplock(struct inode *inode, struct file *file, unsigned long arg) CWARN("group lock %lu doesn't match current id %lu\n", arg, fd->fd_grouplock.cg_gid); spin_unlock(&lli->lli_lock); - RETURN(-EINVAL); + return -EINVAL; } grouplock = fd->fd_grouplock; @@ -1472,7 +1448,7 @@ int ll_put_grouplock(struct inode *inode, struct file *file, unsigned long arg) cl_put_grouplock(&grouplock); CDEBUG(D_INFO, "group lock %lu released\n", arg); - RETURN(0); + return 0; } /** @@ -1489,17 +1465,16 @@ int ll_release_openhandle(struct dentry *dentry, struct lookup_intent *it) struct inode *inode = dentry->d_inode; struct obd_client_handle *och; int rc; - ENTRY; LASSERT(inode); /* Root ? Do nothing. */ if (dentry->d_inode->i_sb->s_root == dentry) - RETURN(0); + return 0; /* No open handle to close? Move away */ if (!it_disposition(it, DISP_OPEN_OPEN)) - RETURN(0); + return 0; LASSERT(it_open_error(DISP_OPEN_OPEN, it) == 0); @@ -1518,7 +1493,7 @@ int ll_release_openhandle(struct dentry *dentry, struct lookup_intent *it) ptlrpc_req_finished(it->d.lustre.it_data); it_clear_disposition(it, DISP_ENQ_OPEN_REF); } - RETURN(rc); + return rc; } /** @@ -1533,7 +1508,6 @@ int ll_do_fiemap(struct inode *inode, struct ll_user_fiemap *fiemap, struct ll_fiemap_info_key fm_key = { .name = KEY_FIEMAP, }; int vallen = num_bytes; int rc; - ENTRY; /* Checks for fiemap flags */ if (fiemap->fm_flags & ~LUSTRE_FIEMAP_FLAGS_COMPAT) { @@ -1579,7 +1553,7 @@ int ll_do_fiemap(struct inode *inode, struct ll_user_fiemap *fiemap, out: ccc_inode_lsm_put(inode, lsm); - RETURN(rc); + return rc; } int ll_fid2path(struct inode *inode, void *arg) @@ -1587,26 +1561,25 @@ int ll_fid2path(struct inode *inode, void *arg) struct obd_export *exp = ll_i2mdexp(inode); struct getinfo_fid2path *gfout, *gfin; int outsize, rc; - ENTRY; if (!cfs_capable(CFS_CAP_DAC_READ_SEARCH) && !(ll_i2sbi(inode)->ll_flags & LL_SBI_USER_FID2PATH)) - RETURN(-EPERM); + return -EPERM; /* Need to get the buflen */ OBD_ALLOC_PTR(gfin); if (gfin == NULL) - RETURN(-ENOMEM); + return -ENOMEM; if (copy_from_user(gfin, arg, sizeof(*gfin))) { OBD_FREE_PTR(gfin); - RETURN(-EFAULT); + return -EFAULT; } outsize = sizeof(*gfout) + gfin->gf_pathlen; OBD_ALLOC(gfout, outsize); if (gfout == NULL) { OBD_FREE_PTR(gfin); - RETURN(-ENOMEM); + return -ENOMEM; } memcpy(gfout, gfin, sizeof(*gfout)); OBD_FREE_PTR(gfin); @@ -1621,7 +1594,7 @@ int ll_fid2path(struct inode *inode, void *arg) gf_free: OBD_FREE(gfout, outsize); - RETURN(rc); + return rc; } static int ll_ioctl_fiemap(struct inode *inode, unsigned long arg) @@ -1635,13 +1608,13 @@ static int ll_ioctl_fiemap(struct inode *inode, unsigned long arg) * required fiemap buffer */ if (get_user(extent_count, &((struct ll_user_fiemap __user *)arg)->fm_extent_count)) - RETURN(-EFAULT); + return -EFAULT; num_bytes = sizeof(*fiemap_s) + (extent_count * sizeof(struct ll_fiemap_extent)); OBD_ALLOC_LARGE(fiemap_s, num_bytes); if (fiemap_s == NULL) - RETURN(-ENOMEM); + return -ENOMEM; /* get the fiemap value */ if (copy_from_user(fiemap_s, (struct ll_user_fiemap __user *)arg, @@ -1673,7 +1646,7 @@ static int ll_ioctl_fiemap(struct inode *inode, unsigned long arg) error: OBD_FREE_LARGE(fiemap_s, num_bytes); - RETURN(rc); + return rc; } /* @@ -1692,24 +1665,21 @@ int ll_data_version(struct inode *inode, __u64 *data_version, struct ll_sb_info *sbi = ll_i2sbi(inode); struct obdo *obdo = NULL; int rc; - ENTRY; /* If no stripe, we consider version is 0. */ lsm = ccc_inode_lsm_get(inode); - if (lsm == NULL) { + if (!lsm_has_objects(lsm)) { *data_version = 0; CDEBUG(D_INODE, "No object for inode\n"); - RETURN(0); + GOTO(out, rc = 0); } OBD_ALLOC_PTR(obdo); - if (obdo == NULL) { - ccc_inode_lsm_put(inode, lsm); - RETURN(-ENOMEM); - } + if (obdo == NULL) + GOTO(out, rc = -ENOMEM); rc = ll_lsm_getattr(lsm, sbi->ll_dt_exp, NULL, obdo, 0, extent_lock); - if (!rc) { + if (rc == 0) { if (!(obdo->o_valid & OBD_MD_FLDATAVERSION)) rc = -EOPNOTSUPP; else @@ -1717,9 +1687,9 @@ int ll_data_version(struct inode *inode, __u64 *data_version, } OBD_FREE_PTR(obdo); +out: ccc_inode_lsm_put(inode, lsm); - - RETURN(rc); + return rc; } struct ll_swap_stack { @@ -1741,7 +1711,7 @@ static int ll_swap_layouts(struct file *file1, struct file *file2, OBD_ALLOC_PTR(llss); if (llss == NULL) - RETURN(-ENOMEM); + return -ENOMEM; llss->inode1 = file1->f_dentry->d_inode; llss->inode2 = file2->f_dentry->d_inode; @@ -1749,8 +1719,8 @@ static int ll_swap_layouts(struct file *file1, struct file *file2, if (!S_ISREG(llss->inode2->i_mode)) GOTO(free, rc = -EINVAL); - if (ll_permission(llss->inode1, MAY_WRITE, NULL) || - ll_permission(llss->inode2, MAY_WRITE, NULL)) + if (inode_permission(llss->inode1, MAY_WRITE) || + inode_permission(llss->inode2, MAY_WRITE)) GOTO(free, rc = -EPERM); if (llss->inode2->i_sb != llss->inode1->i_sb) @@ -1830,12 +1800,12 @@ static int ll_swap_layouts(struct file *file1, struct file *file2, rc = -ENOMEM; op_data = ll_prep_md_op_data(NULL, llss->inode1, llss->inode2, NULL, 0, 0, LUSTRE_OPC_ANY, &msl); - if (op_data != NULL) { - rc = obd_iocontrol(LL_IOC_LOV_SWAP_LAYOUTS, - ll_i2mdexp(llss->inode1), - sizeof(*op_data), op_data, NULL); - ll_finish_md_op_data(op_data); - } + if (IS_ERR(op_data)) + GOTO(free, rc = PTR_ERR(op_data)); + + rc = obd_iocontrol(LL_IOC_LOV_SWAP_LAYOUTS, ll_i2mdexp(llss->inode1), + sizeof(*op_data), op_data, NULL); + ll_finish_md_op_data(op_data); putgl: if (gid != 0) { @@ -1880,7 +1850,7 @@ free: if (llss != NULL) OBD_FREE_PTR(llss); - RETURN(rc); + return rc; } long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) @@ -1888,7 +1858,6 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) struct inode *inode = file->f_dentry->d_inode; struct ll_file_data *fd = LUSTRE_FPRIVATE(file); int flags, rc; - ENTRY; CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p),cmd=%x\n", inode->i_ino, inode->i_generation, inode, cmd); @@ -1896,7 +1865,7 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) /* asm-ppc{,64} declares TCGETS, et. al. as type 't' not 'T' */ if (_IOC_TYPE(cmd) == 'T' || _IOC_TYPE(cmd) == 't') /* tty ioctls */ - RETURN(-ENOTTY); + return -ENOTTY; switch(cmd) { case LL_IOC_GETFLAGS: @@ -1909,66 +1878,66 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) * not abused, and to handle any flag side effects. */ if (get_user(flags, (int *) arg)) - RETURN(-EFAULT); + return -EFAULT; if (cmd == LL_IOC_SETFLAGS) { if ((flags & LL_FILE_IGNORE_LOCK) && !(file->f_flags & O_DIRECT)) { CERROR("%s: unable to disable locking on " "non-O_DIRECT file\n", current->comm); - RETURN(-EINVAL); + return -EINVAL; } fd->fd_flags |= flags; } else { fd->fd_flags &= ~flags; } - RETURN(0); + return 0; case LL_IOC_LOV_SETSTRIPE: - RETURN(ll_lov_setstripe(inode, file, arg)); + return ll_lov_setstripe(inode, file, arg); case LL_IOC_LOV_SETEA: - RETURN(ll_lov_setea(inode, file, arg)); + return ll_lov_setea(inode, file, arg); case LL_IOC_LOV_SWAP_LAYOUTS: { struct file *file2; struct lustre_swap_layouts lsl; if (copy_from_user(&lsl, (char *)arg, sizeof(struct lustre_swap_layouts))) - RETURN(-EFAULT); + return -EFAULT; if ((file->f_flags & O_ACCMODE) == 0) /* O_RDONLY */ - RETURN(-EPERM); + return -EPERM; file2 = fget(lsl.sl_fd); if (file2 == NULL) - RETURN(-EBADF); + return -EBADF; rc = -EPERM; if ((file2->f_flags & O_ACCMODE) != 0) /* O_WRONLY or O_RDWR */ rc = ll_swap_layouts(file, file2, &lsl); fput(file2); - RETURN(rc); + return rc; } case LL_IOC_LOV_GETSTRIPE: - RETURN(ll_lov_getstripe(inode, arg)); + return ll_lov_getstripe(inode, arg); case LL_IOC_RECREATE_OBJ: - RETURN(ll_lov_recreate_obj(inode, arg)); + return ll_lov_recreate_obj(inode, arg); case LL_IOC_RECREATE_FID: - RETURN(ll_lov_recreate_fid(inode, arg)); + return ll_lov_recreate_fid(inode, arg); case FSFILT_IOC_FIEMAP: - RETURN(ll_ioctl_fiemap(inode, arg)); + return ll_ioctl_fiemap(inode, arg); case FSFILT_IOC_GETFLAGS: case FSFILT_IOC_SETFLAGS: - RETURN(ll_iocontrol(inode, file, cmd, arg)); + return ll_iocontrol(inode, file, cmd, arg); case FSFILT_IOC_GETVERSION_OLD: case FSFILT_IOC_GETVERSION: - RETURN(put_user(inode->i_generation, (int *)arg)); + return put_user(inode->i_generation, (int *)arg); case LL_IOC_GROUP_LOCK: - RETURN(ll_get_grouplock(inode, file, arg)); + return ll_get_grouplock(inode, file, arg); case LL_IOC_GROUP_UNLOCK: - RETURN(ll_put_grouplock(inode, file, arg)); + return ll_put_grouplock(inode, file, arg); case IOC_OBD_STATFS: - RETURN(ll_obd_statfs(inode, (void *)arg)); + return ll_obd_statfs(inode, (void *)arg); /* We need to special case any other ioctls we want to handle, * to send them to the MDS/OST as appropriate and to properly @@ -1977,30 +1946,30 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case FSFILT_IOC_SETVERSION: */ case LL_IOC_FLUSHCTX: - RETURN(ll_flush_ctx(inode)); + return ll_flush_ctx(inode); case LL_IOC_PATH2FID: { if (copy_to_user((void *)arg, ll_inode2fid(inode), sizeof(struct lu_fid))) - RETURN(-EFAULT); + return -EFAULT; - RETURN(0); + return 0; } case OBD_IOC_FID2PATH: - RETURN(ll_fid2path(inode, (void *)arg)); + return ll_fid2path(inode, (void *)arg); case LL_IOC_DATA_VERSION: { struct ioc_data_version idv; int rc; if (copy_from_user(&idv, (char *)arg, sizeof(idv))) - RETURN(-EFAULT); + return -EFAULT; rc = ll_data_version(inode, &idv.idv_version, !(idv.idv_flags & LL_DV_NOFLUSH)); if (rc == 0 && copy_to_user((char *) arg, &idv, sizeof(idv))) - RETURN(-EFAULT); + return -EFAULT; - RETURN(rc); + return rc; } case LL_IOC_GET_MDTIDX: { @@ -2008,16 +1977,16 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) mdtidx = ll_get_mdt_idx(inode); if (mdtidx < 0) - RETURN(mdtidx); + return mdtidx; if (put_user((int)mdtidx, (int*)arg)) - RETURN(-EFAULT); + return -EFAULT; - RETURN(0); + return 0; } case OBD_IOC_GETDTNAME: case OBD_IOC_GETMDNAME: - RETURN(ll_get_obd_name(inode, cmd, arg)); + return ll_get_obd_name(inode, cmd, arg); case LL_IOC_HSM_STATE_GET: { struct md_op_data *op_data; struct hsm_user_state *hus; @@ -2025,13 +1994,13 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) OBD_ALLOC_PTR(hus); if (hus == NULL) - RETURN(-ENOMEM); + return -ENOMEM; op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0, LUSTRE_OPC_ANY, hus); - if (op_data == NULL) { + if (IS_ERR(op_data)) { OBD_FREE_PTR(hus); - RETURN(-ENOMEM); + return PTR_ERR(op_data); } rc = obd_iocontrol(cmd, ll_i2mdexp(inode), sizeof(*op_data), @@ -2042,7 +2011,7 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) ll_finish_md_op_data(op_data); OBD_FREE_PTR(hus); - RETURN(rc); + return rc; } case LL_IOC_HSM_STATE_SET: { struct md_op_data *op_data; @@ -2051,10 +2020,10 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) OBD_ALLOC_PTR(hss); if (hss == NULL) - RETURN(-ENOMEM); + return -ENOMEM; if (copy_from_user(hss, (char *)arg, sizeof(*hss))) { OBD_FREE_PTR(hss); - RETURN(-EFAULT); + return -EFAULT; } /* Non-root users are forbidden to set or clear flags which are @@ -2062,14 +2031,14 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if (((hss->hss_setmask | hss->hss_clearmask) & ~HSM_USER_MASK) && !cfs_capable(CFS_CAP_SYS_ADMIN)) { OBD_FREE_PTR(hss); - RETURN(-EPERM); + return -EPERM; } op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0, LUSTRE_OPC_ANY, hss); - if (op_data == NULL) { + if (IS_ERR(op_data)) { OBD_FREE_PTR(hss); - RETURN(-ENOMEM); + return PTR_ERR(op_data); } rc = obd_iocontrol(cmd, ll_i2mdexp(inode), sizeof(*op_data), @@ -2078,7 +2047,7 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) ll_finish_md_op_data(op_data); OBD_FREE_PTR(hss); - RETURN(rc); + return rc; } case LL_IOC_HSM_ACTION: { struct md_op_data *op_data; @@ -2087,13 +2056,13 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) OBD_ALLOC_PTR(hca); if (hca == NULL) - RETURN(-ENOMEM); + return -ENOMEM; op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0, LUSTRE_OPC_ANY, hca); - if (op_data == NULL) { + if (IS_ERR(op_data)) { OBD_FREE_PTR(hca); - RETURN(-ENOMEM); + return PTR_ERR(op_data); } rc = obd_iocontrol(cmd, ll_i2mdexp(inode), sizeof(*op_data), @@ -2104,17 +2073,17 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) ll_finish_md_op_data(op_data); OBD_FREE_PTR(hca); - RETURN(rc); + return rc; } default: { int err; if (LLIOC_STOP == ll_iocontrol_call(inode, file, cmd, arg, &err)) - RETURN(err); + return err; - RETURN(obd_iocontrol(cmd, ll_i2dtexp(inode), 0, NULL, - (void *)arg)); + return obd_iocontrol(cmd, ll_i2dtexp(inode), 0, NULL, + (void *)arg); } } } @@ -2125,7 +2094,6 @@ loff_t ll_file_seek(struct file *file, loff_t offset, int origin) struct inode *inode = file->f_dentry->d_inode; loff_t retval, eof = 0; - ENTRY; retval = offset + ((origin == SEEK_END) ? i_size_read(inode) : (origin == SEEK_CUR) ? file->f_pos : 0); CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), to=%llu=%#llx(%d)\n", @@ -2136,13 +2104,13 @@ loff_t ll_file_seek(struct file *file, loff_t offset, int origin) if (origin == SEEK_END || origin == SEEK_HOLE || origin == SEEK_DATA) { retval = ll_glimpse_size(inode); if (retval != 0) - RETURN(retval); + return retval; eof = i_size_read(inode); } - retval = ll_generic_file_llseek_size(file, offset, origin, + retval = generic_file_llseek_size(file, offset, origin, ll_file_maxbytes(inode), eof); - RETURN(retval); + return retval; } int ll_flush(struct file *file, fl_owner_t id) @@ -2184,15 +2152,14 @@ int cl_sync_file_range(struct inode *inode, loff_t start, loff_t end, struct obd_capa *capa = NULL; struct cl_fsync_io *fio; int result; - ENTRY; if (mode != CL_FSYNC_NONE && mode != CL_FSYNC_LOCAL && mode != CL_FSYNC_DISCARD && mode != CL_FSYNC_ALL) - RETURN(-EINVAL); + return -EINVAL; env = cl_env_nested_get(&nest); if (IS_ERR(env)) - RETURN(PTR_ERR(env)); + return PTR_ERR(env); capa = ll_osscapa_get(inode, CAPA_OPC_OSS_WRITE); @@ -2220,7 +2187,7 @@ int cl_sync_file_range(struct inode *inode, loff_t start, loff_t end, capa_put(capa); - RETURN(result); + return result; } /* @@ -2237,7 +2204,6 @@ int ll_fsync(struct file *file, loff_t start, loff_t end, int datasync) struct ptlrpc_request *req; struct obd_capa *oc; int rc, err; - ENTRY; CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino, inode->i_generation, inode); @@ -2281,23 +2247,24 @@ int ll_fsync(struct file *file, loff_t start, loff_t end, int datasync) } mutex_unlock(&inode->i_mutex); - RETURN(rc); + return rc; } int ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock) { struct inode *inode = file->f_dentry->d_inode; struct ll_sb_info *sbi = ll_i2sbi(inode); - struct ldlm_enqueue_info einfo = { .ei_type = LDLM_FLOCK, - .ei_cb_cp =ldlm_flock_completion_ast, - .ei_cbdata = file_lock }; + struct ldlm_enqueue_info einfo = { + .ei_type = LDLM_FLOCK, + .ei_cb_cp = ldlm_flock_completion_ast, + .ei_cbdata = file_lock, + }; struct md_op_data *op_data; struct lustre_handle lockh = {0}; ldlm_policy_data_t flock = {{0}}; int flags = 0; int rc; int rc2 = 0; - ENTRY; CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu file_lock=%p\n", inode->i_ino, file_lock); @@ -2315,7 +2282,7 @@ int ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock) flock.l_flock.start = file_lock->fl_start; flock.l_flock.end = file_lock->fl_end; } else { - RETURN(-EINVAL); + return -EINVAL; } flock.l_flock.pid = file_lock->fl_pid; @@ -2350,7 +2317,7 @@ int ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock) default: CDEBUG(D_INFO, "Unknown fcntl lock type: %d\n", file_lock->fl_type); - RETURN (-ENOTSUPP); + return -ENOTSUPP; } switch (cmd) { @@ -2377,13 +2344,13 @@ int ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock) break; default: CERROR("unknown fcntl lock command: %d\n", cmd); - RETURN (-EINVAL); + return -EINVAL; } op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0, LUSTRE_OPC_ANY, NULL); if (IS_ERR(op_data)) - RETURN(PTR_ERR(op_data)); + return PTR_ERR(op_data); CDEBUG(D_DLMTRACE, "inode=%lu, pid=%u, flags=%#x, mode=%u, " "start="LPU64", end="LPU64"\n", inode->i_ino, flock.l_flock.pid, @@ -2409,14 +2376,12 @@ int ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock) ll_finish_md_op_data(op_data); - RETURN(rc); + return rc; } int ll_file_noflock(struct file *file, int cmd, struct file_lock *file_lock) { - ENTRY; - - RETURN(-ENOSYS); + return -ENOSYS; } /** @@ -2438,17 +2403,16 @@ int ll_have_md_lock(struct inode *inode, __u64 *bits, ldlm_mode_t l_req_mode) struct lu_fid *fid; __u64 flags; int i; - ENTRY; if (!inode) - RETURN(0); + return 0; fid = &ll_i2info(inode)->lli_fid; CDEBUG(D_INFO, "trying to match res "DFID" mode %s\n", PFID(fid), ldlm_lockname[mode]); flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_CBPENDING | LDLM_FL_TEST_LOCK; - for (i = 0; i < MDS_INODELOCK_MAXSHIFT && *bits != 0; i++) { + for (i = 0; i <= MDS_INODELOCK_MAXSHIFT && *bits != 0; i++) { policy.l_inodebits.bits = *bits & (1 << i); if (policy.l_inodebits.bits == 0) continue; @@ -2467,7 +2431,7 @@ int ll_have_md_lock(struct inode *inode, __u64 *bits, ldlm_mode_t l_req_mode) } } } - RETURN(*bits == 0); + return *bits == 0; } ldlm_mode_t ll_take_md_lock(struct inode *inode, __u64 bits, @@ -2476,7 +2440,6 @@ ldlm_mode_t ll_take_md_lock(struct inode *inode, __u64 bits, ldlm_policy_data_t policy = { .l_inodebits = {bits}}; struct lu_fid *fid; ldlm_mode_t rc; - ENTRY; fid = &ll_i2info(inode)->lli_fid; CDEBUG(D_INFO, "trying to match res "DFID"\n", PFID(fid)); @@ -2484,7 +2447,7 @@ ldlm_mode_t ll_take_md_lock(struct inode *inode, __u64 bits, rc = md_lock_match(ll_i2mdexp(inode), LDLM_FL_BLOCK_GRANTED|flags, fid, LDLM_IBITS, &policy, LCK_CR|LCK_CW|LCK_PR|LCK_PW, lockh); - RETURN(rc); + return rc; } static int ll_inode_revalidate_fini(struct inode *inode, int rc) @@ -2513,7 +2476,6 @@ int __ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it, struct ptlrpc_request *req = NULL; struct obd_export *exp; int rc = 0; - ENTRY; LASSERT(inode != NULL); @@ -2537,7 +2499,7 @@ int __ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it, dentry->d_inode, NULL, 0, 0, LUSTRE_OPC_ANY, NULL); if (IS_ERR(op_data)) - RETURN(PTR_ERR(op_data)); + return PTR_ERR(op_data); oit.it_create_mode |= M_CHECK_STALE; rc = md_intent_lock(exp, op_data, NULL, 0, @@ -2575,7 +2537,7 @@ int __ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it, if (S_ISREG(inode->i_mode)) { rc = ll_get_max_mdsize(sbi, &ealen); if (rc) - RETURN(rc); + return rc; valid |= OBD_MD_FLEASIZE | OBD_MD_FLMODEASIZE; } @@ -2583,7 +2545,7 @@ int __ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it, 0, ealen, LUSTRE_OPC_ANY, NULL); if (IS_ERR(op_data)) - RETURN(PTR_ERR(op_data)); + return PTR_ERR(op_data); op_data->op_valid = valid; /* Once OBD_CONNECT_ATTRFID is not supported, we can't find one @@ -2593,7 +2555,7 @@ int __ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it, ll_finish_md_op_data(op_data); if (rc) { rc = ll_inode_revalidate_fini(inode, rc); - RETURN(rc); + return rc; } rc = ll_prep_inode(&inode, req, NULL, NULL); @@ -2608,11 +2570,10 @@ int ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it, { struct inode *inode = dentry->d_inode; int rc; - ENTRY; rc = __ll_inode_revalidate_it(dentry, it, ibits); if (rc != 0) - RETURN(rc); + return rc; /* if object isn't regular file, don't validate size */ if (!S_ISREG(inode->i_mode)) { @@ -2622,7 +2583,7 @@ int ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it, } else { rc = ll_glimpse_size(inode); } - RETURN(rc); + return rc; } int ll_getattr_it(struct vfsmount *mnt, struct dentry *de, @@ -2672,21 +2633,19 @@ struct posix_acl * ll_get_acl(struct inode *inode, int type) { struct ll_inode_info *lli = ll_i2info(inode); struct posix_acl *acl = NULL; - ENTRY; spin_lock(&lli->lli_lock); /* VFS' acl_permission_check->check_acl will release the refcount */ acl = posix_acl_dup(lli->lli_posix_acl); spin_unlock(&lli->lli_lock); - RETURN(acl); + return acl; } int ll_inode_permission(struct inode *inode, int mask) { int rc = 0; - ENTRY; #ifdef MAY_NOT_BLOCK if (mask & MAY_NOT_BLOCK) @@ -2702,7 +2661,7 @@ int ll_inode_permission(struct inode *inode, int mask) rc = __ll_inode_revalidate_it(inode->i_sb->s_root, &it, MDS_INODELOCK_LOOKUP); if (rc) - RETURN(rc); + return rc; } CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), inode mode %x mask %o\n", @@ -2712,9 +2671,9 @@ int ll_inode_permission(struct inode *inode, int mask) return lustre_check_remote_perm(inode, mask); ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_INODE_PERM, 1); - rc = ll_generic_permission(inode, mask, flags, ll_check_acl); + rc = generic_permission(inode, mask); - RETURN(rc); + return rc; } #define READ_METHOD aio_read @@ -2806,16 +2765,15 @@ void *ll_iocontrol_register(llioc_callback_t cb, int count, unsigned int *cmd) { unsigned int size; struct llioc_data *in_data = NULL; - ENTRY; if (cb == NULL || cmd == NULL || count > LLIOC_MAX_CMD || count < 0) - RETURN(NULL); + return NULL; size = sizeof(*in_data) + count * sizeof(unsigned int); OBD_ALLOC(in_data, size); if (in_data == NULL) - RETURN(NULL); + return NULL; memset(in_data, 0, sizeof(*in_data)); in_data->iocd_size = size; @@ -2827,7 +2785,7 @@ void *ll_iocontrol_register(llioc_callback_t cb, int count, unsigned int *cmd) list_add_tail(&in_data->iocd_list, &llioc.ioc_head); up_write(&llioc.ioc_sem); - RETURN(in_data); + return in_data; } void ll_iocontrol_unregister(void *magic) @@ -2890,14 +2848,13 @@ int ll_layout_conf(struct inode *inode, const struct cl_object_conf *conf) struct cl_env_nest nest; struct lu_env *env; int result; - ENTRY; if (lli->lli_clob == NULL) - RETURN(0); + return 0; env = cl_env_nested_get(&nest); if (IS_ERR(env)) - RETURN(PTR_ERR(env)); + return PTR_ERR(env); result = cl_conf_set(env, lli->lli_clob, conf); cl_env_nested_put(&nest, env); @@ -2915,7 +2872,7 @@ int ll_layout_conf(struct inode *inode, const struct cl_object_conf *conf) ldlm_lock_allow_match(lock); } } - RETURN(result); + return result; } /* Fetch layout from MDT with getxattr request, if it's not ready yet */ @@ -2930,10 +2887,13 @@ static int ll_layout_fetch(struct inode *inode, struct ldlm_lock *lock) void *lmm; int lmmsize; int rc; - ENTRY; - if (lock->l_lvb_data != NULL) - RETURN(0); + CDEBUG(D_INODE, DFID" LVB_READY=%d l_lvb_data=%p l_lvb_len=%d\n", + PFID(ll_inode2fid(inode)), !!(lock->l_flags & LDLM_FL_LVB_READY), + lock->l_lvb_data, lock->l_lvb_len); + + if ((lock->l_lvb_data != NULL) && (lock->l_flags & LDLM_FL_LVB_READY)) + return 0; /* if layout lock was granted right away, the layout is returned * within DLM_LVB of dlm reply; otherwise if the lock was ever @@ -2948,7 +2908,7 @@ static int ll_layout_fetch(struct inode *inode, struct ldlm_lock *lock) lmmsize, 0, &req); capa_put(oc); if (rc < 0) - RETURN(rc); + return rc; body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); if (body == NULL || body->eadatasize > lmmsize) @@ -2968,16 +2928,12 @@ static int ll_layout_fetch(struct inode *inode, struct ldlm_lock *lock) memcpy(lvbdata, lmm, lmmsize); lock_res_and_lock(lock); - if (lock->l_lvb_data == NULL) { - lock->l_lvb_data = lvbdata; - lock->l_lvb_len = lmmsize; - lvbdata = NULL; - } - unlock_res_and_lock(lock); + if (lock->l_lvb_data != NULL) + OBD_FREE_LARGE(lock->l_lvb_data, lock->l_lvb_len); - if (lvbdata != NULL) - OBD_FREE_LARGE(lvbdata, lmmsize); - EXIT; + lock->l_lvb_data = lvbdata; + lock->l_lvb_len = lmmsize; + unlock_res_and_lock(lock); out: ptlrpc_req_finished(req); @@ -2999,7 +2955,6 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode, int rc = 0; bool lvb_ready; bool wait_layout = false; - ENTRY; LASSERT(lustre_handle_is_used(lockh)); @@ -3008,7 +2963,7 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode, LASSERT(ldlm_has_layout(lock)); LDLM_DEBUG(lock, "File %p/"DFID" being reconfigured: %d.\n", - inode, PFID(&lli->lli_fid), reconf); + inode, PFID(&lli->lli_fid), reconf); /* in case this is a caching lock and reinstate with new inode */ md_set_lock_data(sbi->ll_md_exp, &lockh->cookie, inode, NULL); @@ -3068,7 +3023,6 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode, /* refresh layout failed, need to wait */ wait_layout = rc == -EBUSY; - EXIT; out: LDLM_LOCK_PUT(lock); @@ -3090,7 +3044,7 @@ out: CDEBUG(D_INODE, "file: "DFID" waiting layout return: %d.\n", PFID(&lli->lli_fid), rc); } - RETURN(rc); + return rc; } /** @@ -3114,17 +3068,17 @@ int ll_layout_refresh(struct inode *inode, __u32 *gen) struct lookup_intent it; struct lustre_handle lockh; ldlm_mode_t mode; - struct ldlm_enqueue_info einfo = { .ei_type = LDLM_IBITS, - .ei_mode = LCK_CR, - .ei_cb_bl = ll_md_blocking_ast, - .ei_cb_cp = ldlm_completion_ast, - .ei_cbdata = NULL }; + struct ldlm_enqueue_info einfo = { + .ei_type = LDLM_IBITS, + .ei_mode = LCK_CR, + .ei_cb_bl = ll_md_blocking_ast, + .ei_cb_cp = ldlm_completion_ast, + }; int rc; - ENTRY; *gen = lli->lli_layout_gen; if (!(sbi->ll_flags & LL_SBI_LAYOUT_LOCK)) - RETURN(0); + return 0; /* sanity checks */ LASSERT(fid_is_sane(ll_inode2fid(inode))); @@ -3136,7 +3090,7 @@ int ll_layout_refresh(struct inode *inode, __u32 *gen) if (mode != 0) { /* hit cached lock */ rc = ll_layout_lock_set(&lockh, mode, inode, gen, false); if (rc == 0) - RETURN(0); + return 0; /* better hold lli_layout_mutex to try again otherwise * it will have starvation problem. */ @@ -3154,14 +3108,14 @@ again: goto again; mutex_unlock(&lli->lli_layout_mutex); - RETURN(rc); + return rc; } op_data = ll_prep_md_op_data(NULL, inode, inode, NULL, 0, 0, LUSTRE_OPC_ANY, NULL); if (IS_ERR(op_data)) { mutex_unlock(&lli->lli_layout_mutex); - RETURN(PTR_ERR(op_data)); + return PTR_ERR(op_data); } /* have to enqueue one */ @@ -3194,5 +3148,5 @@ again: } mutex_unlock(&lli->lli_layout_mutex); - RETURN(rc); + return rc; } |