* Group identifier for quota purposes.
*/
gid_t cat_gid;
+
+ /* nlink of the directory */
+ __u64 cat_nlink;
};
/**
#define XATTR_NAME_LOV "trusted.lov"
#define XATTR_NAME_LMA "trusted.lma"
#define XATTR_NAME_LMV "trusted.lmv"
+#define XATTR_NAME_DEFAULT_LMV "trusted.dmv"
#define XATTR_NAME_LINK "trusted.link"
#define XATTR_NAME_FID "trusted.fid"
#define XATTR_NAME_VERSION "trusted.version"
__u32 ld_tgt_count; /* how many MDS's */
__u32 ld_active_tgt_count; /* how many active */
__u32 ld_default_stripe_count; /* how many objects are used */
- __u32 ld_pattern; /* default MEA_MAGIC_* */
+ __u32 ld_pattern; /* default hash pattern */
__u64 ld_default_hash_size;
__u64 ld_padding_1; /* also fix lustre_swab_lmv_desc */
__u32 ld_padding_2; /* also fix lustre_swab_lmv_desc */
#define LMV_MAGIC_V1 0x0CD10CD0 /* normal stripe lmv magic */
#define LMV_USER_MAGIC 0x0CD20CD0 /* default lmv magic*/
#define LMV_MAGIC LMV_MAGIC_V1
+
+enum lmv_hash_type {
+ LMV_HASH_TYPE_ALL_CHARS = 1,
+ LMV_HASH_TYPE_FNV_1A_64 = 2,
+};
+
+#define LMV_HASH_NAME_ALL_CHARS "all_char"
+#define LMV_HASH_NAME_FNV_1A_64 "fnv_1a_64"
+
+/**
+ * The FNV-1a hash algorithm is as follows:
+ * hash = FNV_offset_basis
+ * for each octet_of_data to be hashed
+ * hash = hash XOR octet_of_data
+ * hash = hash × FNV_prime
+ * return hash
+ * http://en.wikipedia.org/wiki/Fowler–Noll–Vo_hash_function#FNV-1a_hash
+ *
+ * http://www.isthe.com/chongo/tech/comp/fnv/index.html#FNV-reference-source
+ * FNV_prime is 2^40 + 2^8 + 0xb3 = 0x100000001b3ULL
+ **/
+#define LUSTRE_FNV_1A_64_PRIME 0x100000001b3ULL
+#define LUSTRE_FNV_1A_64_OFFSET_BIAS 0xcbf29ce484222325ULL
+static inline __u64 lustre_hash_fnv_1a_64(const void *buf, size_t size)
+{
+ __u64 hash = LUSTRE_FNV_1A_64_OFFSET_BIAS;
+ const unsigned char *p = buf;
+ size_t i;
+
+ for (i = 0; i < size; i++) {
+ hash ^= p[i];
+ hash *= LUSTRE_FNV_1A_64_PRIME;
+ }
+
+ return hash;
+}
+
struct lmv_mds_md_v1 {
__u32 lmv_magic;
__u32 lmv_stripe_count; /* stripe count */
} __packed;
#endif
-/* keep this to be the same size as lov_user_ost_data_v1 */
struct lmv_user_mds_data {
struct lu_fid lum_fid;
__u32 lum_padding;
__u32 lum_mds;
};
-/* lum_type */
-enum {
- LMV_STRIPE_TYPE = 0,
- LMV_DEFAULT_TYPE = 1,
-};
-
+/*
+ * Got this according to how get LOV_MAX_STRIPE_COUNT, see above,
+ * (max buffer size - lmv+rpc header) / sizeof(struct lmv_user_mds_data)
+ */
+#define LMV_MAX_STRIPE_COUNT 2000 /* ((12 * 4096 - 256) / 24) */
#define lmv_user_md lmv_user_md_v1
struct lmv_user_md_v1 {
__u32 lum_magic; /* must be the first field */
__u32 lum_padding3;
char lum_pool_name[LOV_MAXPOOLNAME];
struct lmv_user_mds_data lum_objects[0];
-};
+} __packed;
static inline int lmv_user_md_size(int stripes, int lmm_magic)
{
stripes * sizeof(struct lmv_user_mds_data);
}
+void lustre_swab_lmv_user_md(struct lmv_user_md *lum);
+
struct ll_recreate_obj {
__u64 lrc_id;
__u32 lrc_ost_idx;
#define LOVEA_DELETE_VALUES(size, count, offset) (size == 0 && count == 0 && \
offset == (typeof(offset))(-1))
+#define LMVEA_DELETE_VALUES(count, offset) ((count) == 0 && \
+ (offset) == (typeof(offset))(-1))
/* #define POISON_BULK 0 */
/*
{
lmv_unpack_md(NULL, &lsm, NULL, 0);
}
+
+static inline void lmv1_cpu_to_le(struct lmv_mds_md_v1 *lmv_dst,
+ const struct lmv_mds_md_v1 *lmv_src)
+{
+ int i;
+
+ lmv_dst->lmv_magic = cpu_to_le32(lmv_src->lmv_magic);
+ lmv_dst->lmv_stripe_count = cpu_to_le32(lmv_src->lmv_stripe_count);
+ lmv_dst->lmv_master_mdt_index =
+ cpu_to_le32(lmv_src->lmv_master_mdt_index);
+ lmv_dst->lmv_hash_type = cpu_to_le32(lmv_src->lmv_hash_type);
+ lmv_dst->lmv_layout_version = cpu_to_le32(lmv_src->lmv_layout_version);
+
+ for (i = 0; i < lmv_src->lmv_stripe_count; i++)
+ fid_cpu_to_le(&lmv_dst->lmv_stripe_fids[i],
+ &lmv_src->lmv_stripe_fids[i]);
+}
+
+static inline void lmv1_le_to_cpu(struct lmv_mds_md_v1 *lmv_dst,
+ const struct lmv_mds_md_v1 *lmv_src)
+{
+ int i;
+
+ lmv_dst->lmv_magic = le32_to_cpu(lmv_src->lmv_magic);
+ lmv_dst->lmv_stripe_count = le32_to_cpu(lmv_src->lmv_stripe_count);
+ lmv_dst->lmv_master_mdt_index =
+ le32_to_cpu(lmv_src->lmv_master_mdt_index);
+ lmv_dst->lmv_hash_type = le32_to_cpu(lmv_src->lmv_hash_type);
+ lmv_dst->lmv_layout_version = le32_to_cpu(lmv_src->lmv_layout_version);
+
+ for (i = 0; i < lmv_src->lmv_stripe_count; i++)
+ fid_le_to_cpu(&lmv_dst->lmv_stripe_fids[i],
+ &lmv_src->lmv_stripe_fids[i]);
+}
+
+static inline void lmv_cpu_to_le(union lmv_mds_md *lmv_dst,
+ const union lmv_mds_md *lmv_src)
+{
+ switch (lmv_src->lmv_magic) {
+ case LMV_MAGIC_V1:
+ lmv1_cpu_to_le(&lmv_dst->lmv_md_v1, &lmv_src->lmv_md_v1);
+ break;
+ default:
+ break;
+ }
+}
+
+static inline void lmv_le_to_cpu(union lmv_mds_md *lmv_dst,
+ const union lmv_mds_md *lmv_src)
+{
+ switch (le32_to_cpu(lmv_src->lmv_magic)) {
+ case LMV_MAGIC_V1:
+ lmv1_le_to_cpu(&lmv_dst->lmv_md_v1, &lmv_src->lmv_md_v1);
+ break;
+ default:
+ break;
+ }
+}
+
#endif
};
/* lmv structures */
-#define MEA_MAGIC_LAST_CHAR 0xb2221ca1
-#define MEA_MAGIC_ALL_CHARS 0xb222a11c
-#define MEA_MAGIC_HASH_SEGMENT 0xb222a11b
-
-#define MAX_HASH_SIZE_32 0x7fffffffUL
-#define MAX_HASH_SIZE 0x7fffffffffffffffULL
-#define MAX_HASH_HIGHEST_BIT 0x1000000000000000ULL
-
struct lustre_md {
struct mdt_body *body;
struct lov_stripe_md *lsm;
};
struct lookup_intent;
+struct cl_attr;
struct md_ops {
int (*getstatus)(struct obd_export *, struct lu_fid *);
int (*free_lustre_md)(struct obd_export *, struct lustre_md *);
+ int (*merge_attr)(struct obd_export *,
+ const struct lmv_stripe_md *lsm,
+ struct cl_attr *attr);
+
+ int (*update_lsm_md)(struct obd_export *, struct lmv_stripe_md *lsm,
+ struct mdt_body *, ldlm_blocking_callback);
+
int (*set_open_replay_data)(struct obd_export *,
struct obd_client_handle *,
struct lookup_intent *);
return MDP(exp->exp_obd, free_lustre_md)(exp, md);
}
+static inline int md_update_lsm_md(struct obd_export *exp,
+ struct lmv_stripe_md *lsm,
+ struct mdt_body *body,
+ ldlm_blocking_callback cb)
+{
+ EXP_CHECK_MD_OP(exp, update_lsm_md);
+ EXP_MD_COUNTER_INCREMENT(exp, update_lsm_md);
+ return MDP(exp->exp_obd, update_lsm_md)(exp, lsm, body, cb);
+}
+
+static inline int md_merge_attr(struct obd_export *exp,
+ const struct lmv_stripe_md *lsm,
+ struct cl_attr *attr)
+{
+ EXP_CHECK_MD_OP(exp, merge_attr);
+ EXP_MD_COUNTER_INCREMENT(exp, merge_attr);
+ return MDP(exp->exp_obd, merge_attr)(exp, lsm, attr);
+}
+
static inline int md_setxattr(struct obd_export *exp, const struct lu_fid *fid,
u64 valid, const char *name,
const char *input, int input_size,
}
static int ll_dir_setdirstripe(struct inode *dir, struct lmv_user_md *lump,
- char *filename)
+ const char *filename)
{
struct ptlrpc_request *request = NULL;
struct md_op_data *op_data;
int mode;
int err;
+ if (unlikely(lump->lum_magic != LMV_USER_MAGIC))
+ return -EINVAL;
+
+ if (lump->lum_stripe_offset == (__u32)-1) {
+ int mdtidx;
+
+ mdtidx = ll_get_mdt_idx(dir);
+ if (mdtidx < 0)
+ return mdtidx;
+
+ lump->lum_stripe_offset = mdtidx;
+ }
+
+ CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p) name %s stripe_offset %d, stripe_count: %u\n",
+ PFID(ll_inode2fid(dir)), dir, filename,
+ (int)lump->lum_stripe_offset, lump->lum_stripe_count);
+
+ if (lump->lum_magic != cpu_to_le32(LMV_USER_MAGIC))
+ lustre_swab_lmv_user_md(lump);
+
mode = (~current_umask() & 0755) | S_IFDIR;
op_data = ll_prep_md_op_data(NULL, dir, NULL, filename,
strlen(filename), mode, LUSTRE_OPC_MKDIR,
if (IS_ERR(op_data))
return PTR_ERR(op_data);
- if (lump && lump->lmm_magic == cpu_to_le32(LMV_USER_MAGIC))
- op_data->op_cli_flags |= CLI_SET_MEA;
-
/* swabbing is done in lov_setstripe() on server side */
rc = md_setattr(sbi->ll_md_exp, op_data, lump, lum_size,
NULL, 0, &req, NULL);
}
*tmp = lum;
- tmp->lum_type = LMV_STRIPE_TYPE;
tmp->lum_stripe_count = 1;
mdtindex = ll_get_mdt_idx(inode);
if (mdtindex < 0) {
return rc;
}
+static int ll_merge_md_attr(struct inode *inode)
+{
+ struct cl_attr attr = { 0 };
+ int rc;
+
+ LASSERT(ll_i2info(inode)->lli_lsm_md);
+ rc = md_merge_attr(ll_i2mdexp(inode), ll_i2info(inode)->lli_lsm_md,
+ &attr);
+ if (rc)
+ return rc;
+
+ ll_i2info(inode)->lli_stripe_dir_size = attr.cat_size;
+ ll_i2info(inode)->lli_stripe_dir_nlink = attr.cat_nlink;
+
+ ll_i2info(inode)->lli_atime = attr.cat_atime;
+ ll_i2info(inode)->lli_mtime = attr.cat_mtime;
+ ll_i2info(inode)->lli_ctime = attr.cat_ctime;
+
+ return 0;
+}
+
static int ll_inode_revalidate(struct dentry *dentry, __u64 ibits)
{
struct inode *inode = d_inode(dentry);
/* if object isn't regular file, don't validate size */
if (!S_ISREG(inode->i_mode)) {
+ if (S_ISDIR(inode->i_mode) &&
+ ll_i2info(inode)->lli_lsm_md) {
+ rc = ll_merge_md_attr(inode);
+ if (rc)
+ return rc;
+ }
+
LTIME_S(inode->i_atime) = ll_i2info(inode)->lli_atime;
LTIME_S(inode->i_mtime) = ll_i2info(inode)->lli_mtime;
LTIME_S(inode->i_ctime) = ll_i2info(inode)->lli_ctime;
else
stat->ino = inode->i_ino;
stat->mode = inode->i_mode;
- stat->nlink = inode->i_nlink;
stat->uid = inode->i_uid;
stat->gid = inode->i_gid;
stat->rdev = inode->i_rdev;
stat->mtime = inode->i_mtime;
stat->ctime = inode->i_ctime;
stat->blksize = 1 << inode->i_blkbits;
-
- stat->size = i_size_read(inode);
stat->blocks = inode->i_blocks;
+ if (S_ISDIR(inode->i_mode) &&
+ ll_i2info(inode)->lli_lsm_md) {
+ stat->nlink = lli->lli_stripe_dir_nlink;
+ stat->size = lli->lli_stripe_dir_size;
+ } else {
+ stat->nlink = inode->i_nlink;
+ stat->size = i_size_read(inode);
+ }
+
return 0;
}
/* for struct cl_lock_descr and struct cl_io */
#include "../include/cl_object.h"
+#include "../include/lustre_lmv.h"
#include "../include/lustre_mdc.h"
#include "../include/lustre_intent.h"
#include <linux/compat.h>
*/
pid_t d_opendir_pid;
/* directory stripe information */
- struct lmv_stripe_md *d_lmv_md;
+ struct lmv_stripe_md *d_lsm_md;
+ /* striped directory size */
+ loff_t d_stripe_size;
+ /* striped directory nlink */
+ __u64 d_stripe_nlink;
} d;
#define lli_readdir_mutex u.d.d_readdir_mutex
#define lli_sai u.d.d_sai
#define lli_sa_lock u.d.d_sa_lock
#define lli_opendir_pid u.d.d_opendir_pid
-#define lli_lmv_md u.d.d_lmv_md
+#define lli_lsm_md u.d.d_lsm_md
+#define lli_stripe_dir_size u.d.d_stripe_size
+#define lli_stripe_dir_nlink u.d.d_stripe_nlink
/* for non-directory */
struct {
struct inode *dir);
struct inode *ll_iget(struct super_block *sb, ino_t hash,
struct lustre_md *lic);
+int ll_test_inode_by_fid(struct inode *inode, void *opaque);
int ll_md_blocking_ast(struct ldlm_lock *, struct ldlm_lock_desc *,
void *data, int flag);
struct dentry *ll_splice_alias(struct inode *inode, struct dentry *de);
return inode;
}
+static void ll_dir_clear_lsm_md(struct inode *inode)
+{
+ struct ll_inode_info *lli = ll_i2info(inode);
+
+ LASSERT(S_ISDIR(inode->i_mode));
+
+ if (lli->lli_lsm_md) {
+ lmv_free_memmd(lli->lli_lsm_md);
+ lli->lli_lsm_md = NULL;
+ }
+}
+
+static struct inode *ll_iget_anon_dir(struct super_block *sb,
+ const struct lu_fid *fid,
+ struct lustre_md *md)
+{
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ struct mdt_body *body = md->body;
+ struct inode *inode;
+ ino_t ino;
+
+ ino = cl_fid_build_ino(fid, sbi->ll_flags & LL_SBI_32BIT_API);
+ inode = iget_locked(sb, ino);
+ if (!inode) {
+ CERROR("%s: failed get simple inode "DFID": rc = -ENOENT\n",
+ ll_get_fsname(sb, NULL, 0), PFID(fid));
+ return ERR_PTR(-ENOENT);
+ }
+
+ if (inode->i_state & I_NEW) {
+ struct ll_inode_info *lli = ll_i2info(inode);
+ struct lmv_stripe_md *lsm = md->lmv;
+
+ inode->i_mode = (inode->i_mode & ~S_IFMT) |
+ (body->mode & S_IFMT);
+ LASSERTF(S_ISDIR(inode->i_mode), "Not slave inode "DFID"\n",
+ PFID(fid));
+
+ LTIME_S(inode->i_mtime) = 0;
+ LTIME_S(inode->i_atime) = 0;
+ LTIME_S(inode->i_ctime) = 0;
+ inode->i_rdev = 0;
+
+ inode->i_op = &ll_dir_inode_operations;
+ inode->i_fop = &ll_dir_operations;
+ lli->lli_fid = *fid;
+ ll_lli_init(lli);
+
+ LASSERT(lsm);
+ /* master stripe FID */
+ lli->lli_pfid = lsm->lsm_md_oinfo[0].lmo_fid;
+ CDEBUG(D_INODE, "lli %p master "DFID" slave "DFID"\n",
+ lli, PFID(fid), PFID(&lli->lli_pfid));
+ unlock_new_inode(inode);
+ }
+
+ return inode;
+}
+
+static int ll_init_lsm_md(struct inode *inode, struct lustre_md *md)
+{
+ struct lmv_stripe_md *lsm = md->lmv;
+ struct lu_fid *fid;
+ int i;
+
+ LASSERT(lsm);
+ /*
+ * XXX sigh, this lsm_root initialization should be in
+ * LMV layer, but it needs ll_iget right now, so we
+ * put this here right now.
+ */
+ for (i = 0; i < lsm->lsm_md_stripe_count; i++) {
+ fid = &lsm->lsm_md_oinfo[i].lmo_fid;
+ LASSERT(!lsm->lsm_md_oinfo[i].lmo_root);
+ if (!i) {
+ lsm->lsm_md_oinfo[i].lmo_root = inode;
+ } else {
+ /*
+ * Unfortunately ll_iget will call ll_update_inode,
+ * where the initialization of slave inode is slightly
+ * different, so it reset lsm_md to NULL to avoid
+ * initializing lsm for slave inode.
+ */
+ lsm->lsm_md_oinfo[i].lmo_root =
+ ll_iget_anon_dir(inode->i_sb, fid, md);
+ if (IS_ERR(lsm->lsm_md_oinfo[i].lmo_root)) {
+ int rc = PTR_ERR(lsm->lsm_md_oinfo[i].lmo_root);
+
+ lsm->lsm_md_oinfo[i].lmo_root = NULL;
+ return rc;
+ }
+ }
+ }
+
+ /*
+ * Here is where the lsm is being initialized(fill lmo_info) after
+ * client retrieve MD stripe information from MDT.
+ */
+ return md_update_lsm_md(ll_i2mdexp(inode), lsm, md->body,
+ ll_md_blocking_ast);
+}
+
+static inline int lli_lsm_md_eq(const struct lmv_stripe_md *lsm_md1,
+ const struct lmv_stripe_md *lsm_md2)
+{
+ return lsm_md1->lsm_md_magic == lsm_md2->lsm_md_magic &&
+ lsm_md1->lsm_md_stripe_count == lsm_md2->lsm_md_stripe_count &&
+ lsm_md1->lsm_md_master_mdt_index ==
+ lsm_md2->lsm_md_master_mdt_index &&
+ lsm_md1->lsm_md_hash_type == lsm_md2->lsm_md_hash_type &&
+ lsm_md1->lsm_md_layout_version ==
+ lsm_md2->lsm_md_layout_version &&
+ !strcmp(lsm_md1->lsm_md_pool_name,
+ lsm_md2->lsm_md_pool_name);
+}
+
+static void ll_update_lsm_md(struct inode *inode, struct lustre_md *md)
+{
+ struct ll_inode_info *lli = ll_i2info(inode);
+ struct lmv_stripe_md *lsm = md->lmv;
+ int idx;
+
+ LASSERT(lsm);
+ LASSERT(S_ISDIR(inode->i_mode));
+ if (!lli->lli_lsm_md) {
+ int rc;
+
+ rc = ll_init_lsm_md(inode, md);
+ if (rc) {
+ CERROR("%s: init "DFID" failed: rc = %d\n",
+ ll_get_fsname(inode->i_sb, NULL, 0),
+ PFID(&lli->lli_fid), rc);
+ return;
+ }
+ lli->lli_lsm_md = lsm;
+ /*
+ * set lsm_md to NULL, so the following free lustre_md
+ * will not free this lsm
+ */
+ md->lmv = NULL;
+ return;
+ }
+
+ /* Compare the old and new stripe information */
+ if (!lli_lsm_md_eq(lli->lli_lsm_md, lsm)) {
+ CERROR("inode %p %lu mismatch\n"
+ " new(%p) vs lli_lsm_md(%p):\n"
+ " magic: %x %x\n"
+ " count: %x %x\n"
+ " master: %x %x\n"
+ " hash_type: %x %x\n"
+ " layout: %x %x\n"
+ " pool: %s %s\n",
+ inode, inode->i_ino, lsm, lli->lli_lsm_md,
+ lsm->lsm_md_magic, lli->lli_lsm_md->lsm_md_magic,
+ lsm->lsm_md_stripe_count,
+ lli->lli_lsm_md->lsm_md_stripe_count,
+ lsm->lsm_md_master_mdt_index,
+ lli->lli_lsm_md->lsm_md_master_mdt_index,
+ lsm->lsm_md_hash_type, lli->lli_lsm_md->lsm_md_hash_type,
+ lsm->lsm_md_layout_version,
+ lli->lli_lsm_md->lsm_md_layout_version,
+ lsm->lsm_md_pool_name,
+ lli->lli_lsm_md->lsm_md_pool_name);
+ return;
+ }
+
+ for (idx = 0; idx < lli->lli_lsm_md->lsm_md_stripe_count; idx++) {
+ if (!lu_fid_eq(&lli->lli_lsm_md->lsm_md_oinfo[idx].lmo_fid,
+ &lsm->lsm_md_oinfo[idx].lmo_fid)) {
+ CERROR("%s: FID in lsm mismatch idx %d, old: "DFID" new:"DFID"\n",
+ ll_get_fsname(inode->i_sb, NULL, 0), idx,
+ PFID(&lli->lli_lsm_md->lsm_md_oinfo[idx].lmo_fid),
+ PFID(&lsm->lsm_md_oinfo[idx].lmo_fid));
+ return;
+ }
+ }
+
+ md_update_lsm_md(ll_i2mdexp(inode), ll_i2info(inode)->lli_lsm_md,
+ md->body, ll_md_blocking_ast);
+}
+
void ll_clear_inode(struct inode *inode)
{
struct ll_inode_info *lli = ll_i2info(inode);
#endif
lli->lli_inode_magic = LLI_INODE_DEAD;
- if (!S_ISDIR(inode->i_mode))
+ if (S_ISDIR(inode->i_mode))
+ ll_dir_clear_lsm_md(inode);
+ else
LASSERT(list_empty(&lli->lli_agl_list));
/*
lli->lli_maxbytes = MAX_LFS_FILESIZE;
}
+ if (S_ISDIR(inode->i_mode) && md->lmv)
+ ll_update_lsm_md(inode, md);
+
#ifdef CONFIG_FS_POSIX_ACL
if (body->valid & OBD_MD_FLACL) {
spin_lock(&lli->lli_lock);
ll_i2gids(op_data->op_suppgids, i1, i2);
op_data->op_fid1 = *ll_inode2fid(i1);
if (S_ISDIR(i1->i_mode))
- op_data->op_mea1 = ll_i2info(i1)->lli_lmv_md;
+ op_data->op_mea1 = ll_i2info(i1)->lli_lsm_md;
if (i2) {
op_data->op_fid2 = *ll_inode2fid(i2);
if (S_ISDIR(i2->i_mode))
- op_data->op_mea2 = ll_i2info(i2)->lli_lmv_md;
+ op_data->op_mea2 = ll_i2info(i2)->lli_lsm_md;
} else {
fid_zero(&op_data->op_fid2);
}
fsid->val[1] = key >> 32;
}
-static int ll_nfs_test_inode(struct inode *inode, void *opaque)
-{
- return lu_fid_eq(&ll_i2info(inode)->lli_fid, opaque);
-}
-
struct inode *search_inode_for_lustre(struct super_block *sb,
const struct lu_fid *fid)
{
CDEBUG(D_INFO, "searching inode for:(%lu,"DFID")\n", hash, PFID(fid));
- inode = ilookup5(sb, hash, ll_nfs_test_inode, (void *)fid);
+ inode = ilookup5(sb, hash, ll_test_inode_by_fid, (void *)fid);
if (inode)
return inode;
spin_unlock(&dir->i_lock);
}
+int ll_test_inode_by_fid(struct inode *inode, void *opaque)
+{
+ return lu_fid_eq(&ll_i2info(inode)->lli_fid, opaque);
+}
+
int ll_md_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
void *data, int flag)
{
}
if ((bits & MDS_INODELOCK_UPDATE) && S_ISDIR(inode->i_mode)) {
- CDEBUG(D_INODE, "invalidating inode "DFID"\n",
- PFID(ll_inode2fid(inode)));
+ struct ll_inode_info *lli = ll_i2info(inode);
+
+ CDEBUG(D_INODE, "invalidating inode "DFID" lli = %p, pfid = "DFID"\n",
+ PFID(ll_inode2fid(inode)), lli,
+ PFID(&lli->lli_pfid));
+
truncate_inode_pages(inode->i_mapping, 0);
- ll_invalidate_negative_children(inode);
+
+ if (unlikely(!fid_is_zero(&lli->lli_pfid))) {
+ struct inode *master_inode = NULL;
+ unsigned long hash;
+
+ /*
+ * This is slave inode, since all of the child
+ * dentry is connected on the master inode, so
+ * we have to invalidate the negative children
+ * on master inode
+ */
+ CDEBUG(D_INODE, "Invalidate s"DFID" m"DFID"\n",
+ PFID(ll_inode2fid(inode)),
+ PFID(&lli->lli_pfid));
+
+ hash = cl_fid_build_ino(&lli->lli_pfid,
+ ll_need_32bit_api(ll_i2sbi(inode)));
+
+ master_inode = ilookup5(inode->i_sb, hash,
+ ll_test_inode_by_fid,
+ (void *)&lli->lli_pfid);
+ if (master_inode && !IS_ERR(master_inode)) {
+ ll_invalidate_negative_children(master_inode);
+ iput(master_inode);
+ }
+ } else {
+ ll_invalidate_negative_children(inode);
+ }
}
if ((bits & (MDS_INODELOCK_LOOKUP | MDS_INODELOCK_PERM)) &&
return rc;
}
+int lmv_revalidate_slaves(struct obd_export *exp, struct mdt_body *mbody,
+ struct lmv_stripe_md *lsm,
+ ldlm_blocking_callback cb_blocking,
+ int extra_lock_flags)
+{
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct mdt_body *body;
+ struct md_op_data *op_data;
+ unsigned long size = 0;
+ unsigned long nlink = 0;
+ __s64 atime = 0;
+ __s64 ctime = 0;
+ __s64 mtime = 0;
+ int rc = 0, i;
+
+ /**
+ * revalidate slaves has some problems, temporarily return,
+ * we may not need that
+ */
+ if (lsm->lsm_md_stripe_count <= 1)
+ return 0;
+
+ op_data = kzalloc(sizeof(*op_data), GFP_NOFS);
+ if (!op_data)
+ return -ENOMEM;
+
+ /**
+ * Loop over the stripe information, check validity and update them
+ * from MDS if needed.
+ */
+ for (i = 0; i < lsm->lsm_md_stripe_count; i++) {
+ struct lookup_intent it = { .it_op = IT_GETATTR };
+ struct ptlrpc_request *req = NULL;
+ struct lustre_handle *lockh = NULL;
+ struct lmv_tgt_desc *tgt = NULL;
+ struct inode *inode;
+ struct lu_fid fid;
+
+ fid = lsm->lsm_md_oinfo[i].lmo_fid;
+ inode = lsm->lsm_md_oinfo[i].lmo_root;
+ if (!i) {
+ if (mbody) {
+ body = mbody;
+ goto update;
+ } else {
+ goto release_lock;
+ }
+ }
+
+ /*
+ * Prepare op_data for revalidating. Note that @fid2 shluld be
+ * defined otherwise it will go to server and take new lock
+ * which is not needed here.
+ */
+ memset(op_data, 0, sizeof(*op_data));
+ op_data->op_fid1 = fid;
+ op_data->op_fid2 = fid;
+
+ tgt = lmv_locate_mds(lmv, op_data, &fid);
+ if (IS_ERR(tgt)) {
+ rc = PTR_ERR(tgt);
+ goto cleanup;
+ }
+
+ CDEBUG(D_INODE, "Revalidate slave "DFID" -> mds #%d\n",
+ PFID(&fid), tgt->ltd_idx);
+
+ rc = md_intent_lock(tgt->ltd_exp, op_data, NULL, 0, &it, 0,
+ &req, cb_blocking, extra_lock_flags);
+ if (rc < 0)
+ goto cleanup;
+
+ lockh = (struct lustre_handle *)&it.it_lock_handle;
+ if (rc > 0 && !req) {
+ /* slave inode is still valid */
+ CDEBUG(D_INODE, "slave "DFID" is still valid.\n",
+ PFID(&fid));
+ rc = 0;
+ } else {
+ /* refresh slave from server */
+ body = req_capsule_server_get(&req->rq_pill,
+ &RMF_MDT_BODY);
+ LASSERT(body);
+update:
+ if (unlikely(body->nlink < 2)) {
+ CERROR("%s: nlink %d < 2 corrupt stripe %d "DFID":" DFID"\n",
+ obd->obd_name, body->nlink, i,
+ PFID(&lsm->lsm_md_oinfo[i].lmo_fid),
+ PFID(&lsm->lsm_md_oinfo[0].lmo_fid));
+
+ if (req)
+ ptlrpc_req_finished(req);
+
+ rc = -EIO;
+ goto cleanup;
+ }
+
+ if (i)
+ md_set_lock_data(tgt->ltd_exp, &lockh->cookie,
+ inode, NULL);
+
+ i_size_write(inode, body->size);
+ set_nlink(inode, body->nlink);
+ LTIME_S(inode->i_atime) = body->atime;
+ LTIME_S(inode->i_ctime) = body->ctime;
+ LTIME_S(inode->i_mtime) = body->mtime;
+
+ if (req)
+ ptlrpc_req_finished(req);
+ }
+release_lock:
+ size += i_size_read(inode);
+
+ if (i != 0)
+ nlink += inode->i_nlink - 2;
+ else
+ nlink += inode->i_nlink;
+
+ atime = LTIME_S(inode->i_atime) > atime ?
+ LTIME_S(inode->i_atime) : atime;
+ ctime = LTIME_S(inode->i_ctime) > ctime ?
+ LTIME_S(inode->i_ctime) : ctime;
+ mtime = LTIME_S(inode->i_mtime) > mtime ?
+ LTIME_S(inode->i_mtime) : mtime;
+
+ if (it.it_lock_mode && lockh) {
+ ldlm_lock_decref(lockh, it.it_lock_mode);
+ it.it_lock_mode = 0;
+ }
+
+ CDEBUG(D_INODE, "i %d "DFID" size %llu, nlink %u, atime %lu, mtime %lu, ctime %lu.\n",
+ i, PFID(&fid), i_size_read(inode), inode->i_nlink,
+ LTIME_S(inode->i_atime), LTIME_S(inode->i_mtime),
+ LTIME_S(inode->i_ctime));
+ }
+
+ /*
+ * update attr of master request.
+ */
+ CDEBUG(D_INODE, "Return refreshed attrs: size = %lu nlink %lu atime %llu ctime %llu mtime %llu for " DFID"\n",
+ size, nlink, atime, ctime, mtime,
+ PFID(&lsm->lsm_md_oinfo[0].lmo_fid));
+
+ if (mbody) {
+ mbody->atime = atime;
+ mbody->ctime = ctime;
+ mbody->mtime = mtime;
+ }
+cleanup:
+ kfree(op_data);
+ return rc;
+}
+
/*
* IT_OPEN is intended to open (and create, possible) an object. Parent (pid)
* may be split dir.
struct mdt_body *body;
int rc;
- tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid1);
- if (IS_ERR(tgt))
- return PTR_ERR(tgt);
+ if (it->it_flags & MDS_OPEN_BY_FID && fid_is_sane(&op_data->op_fid2)) {
+ if (op_data->op_mea1) {
+ struct lmv_stripe_md *lsm = op_data->op_mea1;
+ const struct lmv_oinfo *oinfo;
+
+ oinfo = lsm_name_to_stripe_info(lsm, op_data->op_name,
+ op_data->op_namelen);
+ op_data->op_fid1 = oinfo->lmo_fid;
+ }
+
+ tgt = lmv_find_target(lmv, &op_data->op_fid2);
+ if (IS_ERR(tgt))
+ return PTR_ERR(tgt);
+
+ op_data->op_mds = tgt->ltd_idx;
+ } else {
+ tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid1);
+ if (IS_ERR(tgt))
+ return PTR_ERR(tgt);
+ }
/* If it is ready to open the file by FID, do not need
* allocate FID at all, otherwise it will confuse MDT
body = req_capsule_server_get(&(*reqp)->rq_pill, &RMF_MDT_BODY);
if (!body)
return -EPROTO;
- /*
- * Not cross-ref case, just get out of here.
- */
- if (likely(!(body->valid & OBD_MD_MDS)))
- return 0;
- /*
- * Okay, MDS has returned success. Probably name has been resolved in
- * remote inode.
- */
- rc = lmv_intent_remote(exp, lmm, lmmsize, it, &op_data->op_fid1, flags,
- reqp, cb_blocking, extra_lock_flags);
- if (rc != 0) {
- LASSERT(rc < 0);
- /*
- * This is possible, that some userspace application will try to
- * open file as directory and we will have -ENOTDIR here. As
- * this is normal situation, we should not print error here,
- * only debug info.
- */
- CDEBUG(D_INODE, "Can't handle remote %s: dir " DFID "(" DFID "):%*s: %d\n",
- LL_IT2STR(it), PFID(&op_data->op_fid2),
- PFID(&op_data->op_fid1), op_data->op_namelen,
- op_data->op_name, rc);
- return rc;
+ /* Not cross-ref case, just get out of here. */
+ if (unlikely((body->valid & OBD_MD_MDS))) {
+ rc = lmv_intent_remote(exp, lmm, lmmsize, it, &op_data->op_fid1,
+ flags, reqp, cb_blocking,
+ extra_lock_flags);
+ if (rc != 0)
+ return rc;
+
+ body = req_capsule_server_get(&(*reqp)->rq_pill, &RMF_MDT_BODY);
+ if (!body)
+ return -EPROTO;
}
return rc;
rc = md_intent_lock(tgt->ltd_exp, op_data, lmm, lmmsize, it,
flags, reqp, cb_blocking, extra_lock_flags);
- if (rc < 0 || !*reqp)
+ if (rc < 0)
+ return rc;
+
+ if (!*reqp) {
+ /*
+ * If RPC happens, lsm information will be revalidated
+ * during update_inode process (see ll_update_lsm_md)
+ */
+ if (op_data->op_mea2) {
+ rc = lmv_revalidate_slaves(exp, NULL, op_data->op_mea2,
+ cb_blocking,
+ extra_lock_flags);
+ if (rc != 0)
+ return rc;
+ }
return rc;
+ }
/*
* MDS has returned success. Probably name has been resolved in
body = req_capsule_server_get(&(*reqp)->rq_pill, &RMF_MDT_BODY);
if (!body)
return -EPROTO;
- /* Not cross-ref case, just get out of here. */
- if (likely(!(body->valid & OBD_MD_MDS)))
- return 0;
- rc = lmv_intent_remote(exp, lmm, lmmsize, it, NULL, flags, reqp,
- cb_blocking, extra_lock_flags);
+ /* Not cross-ref case, just get out of here. */
+ if (unlikely((body->valid & OBD_MD_MDS))) {
+ rc = lmv_intent_remote(exp, lmm, lmmsize, it, NULL, flags,
+ reqp, cb_blocking, extra_lock_flags);
+ if (rc != 0)
+ return rc;
+ body = req_capsule_server_get(&(*reqp)->rq_pill, &RMF_MDT_BODY);
+ if (!body)
+ return -EPROTO;
+ }
return rc;
}
int lmv_fid_alloc(struct obd_export *exp, struct lu_fid *fid,
struct md_op_data *op_data);
+int lmv_unpack_md(struct obd_export *exp, struct lmv_stripe_md **lsmp,
+ const union lmv_mds_md *lmm, int stripe_count);
+
+int lmv_revalidate_slaves(struct obd_export *exp, struct mdt_body *mbody,
+ struct lmv_stripe_md *lsm,
+ ldlm_blocking_callback cb_blocking,
+ int extra_lock_flags);
+
static inline struct lmv_tgt_desc *
lmv_get_target(struct lmv_obd *lmv, u32 mds)
{
return sizeof(*lsm) + stripe_count * sizeof(lsm->lsm_md_oinfo[0]);
}
+int lmv_name_to_stripe_index(enum lmv_hash_type hashtype,
+ unsigned int max_mdt_index,
+ const char *name, int namelen);
+
+static inline const struct lmv_oinfo *
+lsm_name_to_stripe_info(const struct lmv_stripe_md *lsm, const char *name,
+ int namelen)
+{
+ int stripe_index;
+
+ stripe_index = lmv_name_to_stripe_index(lsm->lsm_md_hash_type,
+ lsm->lsm_md_stripe_count,
+ name, namelen);
+ if (stripe_index < 0)
+ return ERR_PTR(stripe_index);
+
+ LASSERTF(stripe_index < lsm->lsm_md_stripe_count,
+ "stripe_index = %d, stripe_count = %d hash_type = %x name = %.*s\n",
+ stripe_index, lsm->lsm_md_stripe_count,
+ lsm->lsm_md_hash_type, namelen, name);
+
+ return &lsm->lsm_md_oinfo[stripe_index];
+}
+
struct lmv_tgt_desc
*lmv_locate_mds(struct lmv_obd *lmv, struct md_op_data *op_data,
struct lu_fid *fid);
#include "../include/obd_class.h"
#include "../include/lustre_lmv.h"
#include "../include/lprocfs_status.h"
+#include "../include/cl_object.h"
#include "../include/lustre_lite.h"
#include "../include/lustre_fid.h"
#include "../include/lustre_kernelcomm.h"
#include "lmv_internal.h"
+/* This hash is only for testing purpose */
+static inline unsigned int
+lmv_hash_all_chars(unsigned int count, const char *name, int namelen)
+{
+ const unsigned char *p = (const unsigned char *)name;
+ unsigned int c = 0;
+
+ while (--namelen >= 0)
+ c += p[namelen];
+
+ c = c % count;
+
+ return c;
+}
+
+static inline unsigned int
+lmv_hash_fnv1a(unsigned int count, const char *name, int namelen)
+{
+ __u64 hash;
+
+ hash = lustre_hash_fnv_1a_64(name, namelen);
+
+ return do_div(hash, count);
+}
+
+int lmv_name_to_stripe_index(enum lmv_hash_type hashtype,
+ unsigned int max_mdt_index,
+ const char *name, int namelen)
+{
+ int idx;
+
+ LASSERT(namelen > 0);
+ if (max_mdt_index <= 1)
+ return 0;
+
+ switch (hashtype) {
+ case LMV_HASH_TYPE_ALL_CHARS:
+ idx = lmv_hash_all_chars(max_mdt_index, name, namelen);
+ break;
+ case LMV_HASH_TYPE_FNV_1A_64:
+ idx = lmv_hash_fnv1a(max_mdt_index, name, namelen);
+ break;
+ default:
+ CERROR("Unknown hash type 0x%x\n", hashtype);
+ return -EINVAL;
+ }
+
+ LASSERT(idx < max_mdt_index);
+ return idx;
+}
+
static void lmv_activate_target(struct lmv_obd *lmv,
struct lmv_tgt_desc *tgt,
int activate)
* If stripe_offset is provided during setdirstripe
* (setdirstripe -i xx), xx MDS will be chosen.
*/
- if (op_data->op_cli_flags & CLI_SET_MEA) {
+ if (op_data->op_cli_flags & CLI_SET_MEA && op_data->op_data) {
struct lmv_user_md *lum;
- lum = (struct lmv_user_md *)op_data->op_data;
- if (lum->lum_type == LMV_STRIPE_TYPE &&
- lum->lum_stripe_offset != -1) {
- if (lum->lum_stripe_offset >= lmv->desc.ld_tgt_count) {
- CERROR("%s: Stripe_offset %d > MDT count %d: rc = %d\n",
- obd->obd_name,
- lum->lum_stripe_offset,
- lmv->desc.ld_tgt_count, -ERANGE);
- return -ERANGE;
- }
- *mds = lum->lum_stripe_offset;
- return 0;
- }
+ lum = op_data->op_data;
+ *mds = lum->lum_stripe_offset;
+ } else {
+ /*
+ * Allocate new fid on target according to operation type and
+ * parent home mds.
+ */
+ *mds = op_data->op_mds;
}
- /* Allocate new fid on target according to operation type and parent
- * home mds.
- */
- *mds = op_data->op_mds;
return 0;
}
return rc;
}
+/**
+ * Choosing the MDT by name or FID in @op_data.
+ * For non-striped directory, it will locate MDT by fid.
+ * For striped-directory, it will locate MDT by name. And also
+ * it will reset op_fid1 with the FID of the chosen stripe.
+ **/
struct lmv_tgt_desc
*lmv_locate_mds(struct lmv_obd *lmv, struct md_op_data *op_data,
struct lu_fid *fid)
{
+ struct lmv_stripe_md *lsm = op_data->op_mea1;
+ const struct lmv_oinfo *oinfo;
struct lmv_tgt_desc *tgt;
- tgt = lmv_find_target(lmv, fid);
- if (IS_ERR(tgt))
+ if (!lsm || lsm->lsm_md_stripe_count <= 1 ||
+ !op_data->op_namelen) {
+ tgt = lmv_find_target(lmv, fid);
+ if (IS_ERR(tgt))
+ return tgt;
+
+ op_data->op_mds = tgt->ltd_idx;
+
return tgt;
+ }
- op_data->op_mds = tgt->ltd_idx;
+ oinfo = lsm_name_to_stripe_info(lsm, op_data->op_name,
+ op_data->op_namelen);
+ *fid = oinfo->lmo_fid;
+ op_data->op_mds = oinfo->lmo_mds;
+ tgt = lmv_get_target(lmv, op_data->op_mds);
+
+ CDEBUG(D_INFO, "locate on mds %u\n", op_data->op_mds);
return tgt;
}
if (IS_ERR(tgt))
return PTR_ERR(tgt);
+ CDEBUG(D_INODE, "CREATE name '%.*s' on "DFID" -> mds #%x\n",
+ op_data->op_namelen, op_data->op_name, PFID(&op_data->op_fid1),
+ op_data->op_mds);
+
rc = lmv_fid_alloc(exp, &op_data->op_fid2, op_data);
if (rc)
return rc;
- CDEBUG(D_INODE, "CREATE '%*s' on "DFID" -> mds #%x\n",
- op_data->op_namelen, op_data->op_name, PFID(&op_data->op_fid1),
- op_data->op_mds);
+ /*
+ * Send the create request to the MDT where the object
+ * will be located
+ */
+ tgt = lmv_find_target(lmv, &op_data->op_fid2);
+ if (IS_ERR(tgt))
+ return PTR_ERR(tgt);
+
+ op_data->op_mds = tgt->ltd_idx;
+
+ CDEBUG(D_INODE, "CREATE obj "DFID" -> mds #%x\n",
+ PFID(&op_data->op_fid1), op_data->op_mds);
op_data->op_flags |= MF_MDC_CANCEL_FID1;
rc = md_create(tgt->ltd_exp, op_data, data, datalen, mode, uid, gid,
op_data->op_fsuid = from_kuid(&init_user_ns, current_fsuid());
op_data->op_fsgid = from_kgid(&init_user_ns, current_fsgid());
op_data->op_cap = cfs_curproc_cap_pack();
+ if (op_data->op_mea2) {
+ struct lmv_stripe_md *lsm = op_data->op_mea2;
+ const struct lmv_oinfo *oinfo;
+
+ oinfo = lsm_name_to_stripe_info(lsm, op_data->op_name,
+ op_data->op_namelen);
+ op_data->op_fid2 = oinfo->lmo_fid;
+ }
+
tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid2);
if (IS_ERR(tgt))
return PTR_ERR(tgt);
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
struct lmv_tgt_desc *src_tgt;
- struct lmv_tgt_desc *tgt_tgt;
int rc;
LASSERT(oldlen != 0);
- CDEBUG(D_INODE, "RENAME %*s in "DFID" to %*s in "DFID"\n",
+ CDEBUG(D_INODE, "RENAME %.*s in "DFID":%d to %.*s in "DFID":%d\n",
oldlen, old, PFID(&op_data->op_fid1),
- newlen, new, PFID(&op_data->op_fid2));
+ op_data->op_mea1 ? op_data->op_mea1->lsm_md_stripe_count : 0,
+ newlen, new, PFID(&op_data->op_fid2),
+ op_data->op_mea2 ? op_data->op_mea2->lsm_md_stripe_count : 0);
rc = lmv_check_connect(obd);
if (rc)
op_data->op_fsuid = from_kuid(&init_user_ns, current_fsuid());
op_data->op_fsgid = from_kgid(&init_user_ns, current_fsgid());
op_data->op_cap = cfs_curproc_cap_pack();
- src_tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid1);
- if (IS_ERR(src_tgt))
- return PTR_ERR(src_tgt);
- tgt_tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid2);
- if (IS_ERR(tgt_tgt))
- return PTR_ERR(tgt_tgt);
+ if (op_data->op_mea1) {
+ struct lmv_stripe_md *lsm = op_data->op_mea1;
+ const struct lmv_oinfo *oinfo;
+
+ oinfo = lsm_name_to_stripe_info(lsm, old, oldlen);
+ op_data->op_fid1 = oinfo->lmo_fid;
+ op_data->op_mds = oinfo->lmo_mds;
+ src_tgt = lmv_get_target(lmv, op_data->op_mds);
+ if (IS_ERR(src_tgt))
+ return PTR_ERR(src_tgt);
+ } else {
+ src_tgt = lmv_find_target(lmv, &op_data->op_fid1);
+ if (IS_ERR(src_tgt))
+ return PTR_ERR(src_tgt);
+
+ op_data->op_mds = src_tgt->ltd_idx;
+ }
+
+ if (op_data->op_mea2) {
+ struct lmv_stripe_md *lsm = op_data->op_mea2;
+ const struct lmv_oinfo *oinfo;
+
+ oinfo = lsm_name_to_stripe_info(lsm, new, newlen);
+ op_data->op_fid2 = oinfo->lmo_fid;
+ }
+
/*
* LOOKUP lock on src child (fid3) should also be cancelled for
* src_tgt in mdc_rename.
}
return lsm_size;
}
+EXPORT_SYMBOL(lmv_unpack_md);
int lmv_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
struct lov_mds_md *lmm, int disk_len)
if (rc)
return rc;
- tgt = lmv_find_target(lmv, &op_data->op_fid1);
+ tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid1);
if (IS_ERR(tgt))
return PTR_ERR(tgt);
return rc;
}
+int lmv_update_lsm_md(struct obd_export *exp, struct lmv_stripe_md *lsm,
+ struct mdt_body *body, ldlm_blocking_callback cb_blocking)
+{
+ if (lsm->lsm_md_stripe_count <= 1)
+ return 0;
+
+ return lmv_revalidate_slaves(exp, body, lsm, cb_blocking, 0);
+}
+
+int lmv_merge_attr(struct obd_export *exp, const struct lmv_stripe_md *lsm,
+ struct cl_attr *attr)
+{
+ int i;
+
+ for (i = 0; i < lsm->lsm_md_stripe_count; i++) {
+ struct inode *inode = lsm->lsm_md_oinfo[i].lmo_root;
+
+ CDEBUG(D_INFO, ""DFID" size %llu, nlink %u, atime %lu ctime %lu, mtime %lu.\n",
+ PFID(&lsm->lsm_md_oinfo[i].lmo_fid),
+ i_size_read(inode), inode->i_nlink,
+ LTIME_S(inode->i_atime), LTIME_S(inode->i_ctime),
+ LTIME_S(inode->i_mtime));
+
+ /* for slave stripe, it needs to subtract nlink for . and .. */
+ if (i)
+ attr->cat_nlink += inode->i_nlink - 2;
+ else
+ attr->cat_nlink = inode->i_nlink;
+
+ attr->cat_size += i_size_read(inode);
+
+ if (attr->cat_atime < LTIME_S(inode->i_atime))
+ attr->cat_atime = LTIME_S(inode->i_atime);
+
+ if (attr->cat_ctime < LTIME_S(inode->i_ctime))
+ attr->cat_ctime = LTIME_S(inode->i_ctime);
+
+ if (attr->cat_mtime < LTIME_S(inode->i_mtime))
+ attr->cat_mtime = LTIME_S(inode->i_mtime);
+ }
+ return 0;
+}
+
static struct obd_ops lmv_obd_ops = {
.owner = THIS_MODULE,
.setup = lmv_setup,
.lock_match = lmv_lock_match,
.get_lustre_md = lmv_get_lustre_md,
.free_lustre_md = lmv_free_lustre_md,
+ .update_lsm_md = lmv_update_lsm_md,
+ .merge_attr = lmv_merge_attr,
.set_open_replay_data = lmv_set_open_replay_data,
.clear_open_replay_data = lmv_clear_open_replay_data,
.intent_getattr_async = lmv_intent_getattr_async,
mdc_open_pack(req, op_data, it->it_create_mode, 0, it->it_flags, lmm,
lmmsize);
+ req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
+ obddev->u.cli.cl_max_mds_easize);
+
ptlrpc_request_set_replen(req);
return req;
}
}
EXPORT_SYMBOL(lustre_swab_lov_desc);
+void lustre_swab_lmv_user_md(struct lmv_user_md *lum)
+{
+ __swab32s(&lum->lum_magic);
+ __swab32s(&lum->lum_stripe_count);
+ __swab32s(&lum->lum_stripe_offset);
+ __swab32s(&lum->lum_hash_type);
+ __swab32s(&lum->lum_type);
+ CLASSERT(offsetof(typeof(*lum), lum_padding1));
+}
+EXPORT_SYMBOL(lustre_swab_lmv_user_md);
+
static void print_lum(struct lov_user_md *lum)
{
CDEBUG(D_OTHER, "lov_user_md %p:\n", lum);
projects / users / dwmw2 / linux.git / commitdiff