#define DEBUG_SUBSYSTEM S_LLITE
#include <linux/module.h>
+#include <linux/random.h>
#include <linux/statfs.h>
#include <linux/time.h>
#include <linux/types.h>
+#include <libcfs/linux/linux-uuid.h>
#include <linux/version.h>
#include <linux/mm.h>
#include <linux/user_namespace.h>
unsigned long pages;
unsigned long lru_page_max;
struct sysinfo si;
- class_uuid_t uuid;
int i;
ENTRY;
sbi->ll_ra_info.ra_max_pages = sbi->ll_ra_info.ra_max_pages_per_file;
sbi->ll_ra_info.ra_max_read_ahead_whole_pages = -1;
- ll_generate_random_uuid(uuid);
- class_uuid_unparse(uuid, &sbi->ll_sb_uuid);
- CDEBUG(D_CONFIG, "generated uuid: %s\n", sbi->ll_sb_uuid.uuid);
-
sbi->ll_flags |= LL_SBI_VERBOSE;
#ifdef ENABLE_CHECKSUM
sbi->ll_flags |= LL_SBI_CHECKSUM;
OBD_CONNECT_GRANT_PARAM |
OBD_CONNECT_SHORTIO | OBD_CONNECT_FLAGS2;
- data->ocd_connect_flags2 = OBD_CONNECT2_FLR |
- OBD_CONNECT2_LOCK_CONVERT |
- OBD_CONNECT2_DIR_MIGRATE |
+ data->ocd_connect_flags2 = OBD_CONNECT2_DIR_MIGRATE |
OBD_CONNECT2_SUM_STATFS |
+ OBD_CONNECT2_FLR |
+ OBD_CONNECT2_LOCK_CONVERT |
OBD_CONNECT2_ARCHIVE_ID_ARRAY |
OBD_CONNECT2_LSOM;
sb->s_root = d_make_root(root);
if (sb->s_root == NULL) {
- CERROR("%s: can't make root dentry\n",
- ll_get_fsname(sb, NULL, 0));
- GOTO(out_root, err = -ENOMEM);
+ err = -ENOMEM;
+ CERROR("%s: can't make root dentry: rc = %d\n",
+ sbi->ll_fsname, err);
+ GOTO(out_root, err);
}
#ifdef HAVE_DCACHE_LOCK
sb->s_root->d_op = &ll_d_ops;
sbi->ll_dt_obd->obd_type->typ_name);
if (err < 0) {
CERROR("%s: could not register %s in llite: rc = %d\n",
- dt, ll_get_fsname(sb, NULL, 0), err);
+ dt, sbi->ll_fsname, err);
err = 0;
}
}
sbi->ll_md_obd->obd_type->typ_name);
if (err < 0) {
CERROR("%s: could not register %s in llite: rc = %d\n",
- md, ll_get_fsname(sb, NULL, 0), err);
+ md, sbi->ll_fsname, err);
err = 0;
}
}
char name[MAX_STRING_SIZE];
int md_len = 0;
int dt_len = 0;
+ uuid_t uuid;
char *ptr;
int len;
int err;
if (err)
GOTO(out_free_cfg, err);
- err = super_setup_bdi_name(sb, "lustre-%016lx", cfg_instance);
- if (err)
- GOTO(out_free_cfg, err);
-
#ifndef HAVE_DCACHE_LOCK
/* kernel >= 2.6.38 store dentry operations in sb->s_d_op. */
sb->s_d_op = &ll_d_ops;
#endif
+ /* UUID handling */
+ generate_random_uuid(uuid.b);
+ snprintf(sbi->ll_sb_uuid.uuid, UUID_SIZE, "%pU", uuid.b);
+
+ CDEBUG(D_CONFIG, "llite sb uuid: %s\n", sbi->ll_sb_uuid.uuid);
+
/* Get fsname */
len = strlen(profilenm);
ptr = strrchr(profilenm, '-');
if (ptr && (strcmp(ptr, "-client") == 0))
len -= 7;
+ if (len > LUSTRE_MAXFSNAME) {
+ if (unlikely(len >= MAX_STRING_SIZE))
+ len = MAX_STRING_SIZE - 1;
+ strncpy(name, profilenm, len);
+ name[len] = '\0';
+ err = -ENAMETOOLONG;
+ CERROR("%s: fsname longer than %u characters: rc = %d\n",
+ name, LUSTRE_MAXFSNAME, err);
+ GOTO(out_free_cfg, err);
+ }
+ strncpy(sbi->ll_fsname, profilenm, len);
+ sbi->ll_fsname[len] = '\0';
+
/* Mount info */
- snprintf(name, MAX_STRING_SIZE, "%.*s-%016lx", len,
+ snprintf(name, sizeof(name), "%.*s-%016lx", len,
profilenm, cfg_instance);
+ err = super_setup_bdi_name(sb, "%s", name);
+ if (err)
+ GOTO(out_free_cfg, err);
+
/* Call ll_debugfs_register_super() before lustre_process_log()
* so that "llite.*.*" params can be processed correctly.
*/
err = ll_debugfs_register_super(sb, name);
if (err < 0) {
CERROR("%s: could not register mountpoint in llite: rc = %d\n",
- ll_get_fsname(sb, NULL, 0), err);
+ sbi->ll_fsname, err);
err = 0;
}
inode = iget_locked(sb, ino);
if (inode == NULL) {
CERROR("%s: failed get simple inode "DFID": rc = -ENOENT\n",
- ll_get_fsname(sb, NULL, 0), PFID(fid));
+ sbi->ll_fsname, PFID(fid));
RETURN(ERR_PTR(-ENOENT));
}
LASSERT(lsm != NULL);
CDEBUG(D_INODE, "%s: "DFID" set dir layout:\n",
- ll_get_fsname(inode->i_sb, NULL, 0),
- PFID(&lli->lli_fid));
+ ll_i2sbi(inode)->ll_fsname, PFID(&lli->lli_fid));
lsm_md_dump(D_INODE, lsm);
/* XXX sigh, this lsm_root initialization should be in
/*
* if dir layout mismatch, check whether version is increased, which
* means layout is changed, this happens in dir migration and lfsck.
+ *
+ * foreign LMV should not change.
*/
- if (lli->lli_lsm_md && !lsm_md_eq(lli->lli_lsm_md, lsm)) {
+ if (lli->lli_lsm_md &&
+ lli->lli_lsm_md->lsm_md_magic != LMV_MAGIC_FOREIGN &&
+ !lsm_md_eq(lli->lli_lsm_md, lsm)) {
if (lsm->lsm_md_layout_version <=
lli->lli_lsm_md->lsm_md_layout_version) {
CERROR("%s: "DFID" dir layout mismatch:\n",
- ll_get_fsname(inode->i_sb, NULL, 0),
- PFID(&lli->lli_fid));
+ ll_i2sbi(inode)->ll_fsname,
+ PFID(&lli->lli_fid));
lsm_md_dump(D_ERROR, lli->lli_lsm_md);
lsm_md_dump(D_ERROR, lsm);
GOTO(unlock, rc = -EINVAL);
if (!lli->lli_lsm_md) {
struct cl_attr *attr;
+ if (lsm->lsm_md_magic == LMV_MAGIC_FOREIGN) {
+ /* set md->lmv to NULL, so the following free lustre_md
+ * will not free this lsm */
+ md->lmv = NULL;
+ lli->lli_lsm_md = lsm;
+ up_write(&lli->lli_lsm_sem);
+ RETURN(0);
+ }
+
rc = ll_init_lsm_md(inode, md);
up_write(&lli->lli_lsm_sem);
if (rc != 0)
CDEBUG(D_VFSTRACE, "%s: setattr inode "DFID"(%p) from %llu to %llu, "
"valid %x, hsm_import %d\n",
- ll_get_fsname(inode->i_sb, NULL, 0), PFID(&lli->lli_fid),
+ ll_i2sbi(inode)->ll_fsname, PFID(&lli->lli_fid),
inode, i_size_read(inode), attr->ia_size, attr->ia_valid,
hsm_import);
LASSERTF(nrpages == 0, "%s: inode="DFID"(%p) nrpages=%lu, "
"see https://jira.whamcloud.com/browse/LU-118\n",
- ll_get_fsname(inode->i_sb, NULL, 0),
+ ll_i2sbi(inode)->ll_fsname,
PFID(ll_inode2fid(inode)), inode, nrpages);
#ifdef HAVE_SBOPS_EVICT_INODE
OBD_ALLOC_PTR(op_data);
if (op_data == NULL) {
CWARN("%s: cannot allocate op_data to release open handle for "
- DFID"\n",
- ll_get_fsname(sb, NULL, 0), PFID(&body->mbo_fid1));
+ DFID"\n", ll_s2sbi(sb)->ll_fsname, PFID(&body->mbo_fid1));
RETURN_EXIT;
}
rc = md_get_lustre_md(sbi->ll_md_exp, req, sbi->ll_dt_exp,
sbi->ll_md_exp, &md);
if (rc != 0)
- GOTO(cleanup, rc);
+ GOTO(out, rc);
if (*inode) {
rc = ll_update_inode(*inode, &md);
*/
if (!fid_is_sane(&md.body->mbo_fid1)) {
CERROR("%s: Fid is insane "DFID"\n",
- ll_get_fsname(sb, NULL, 0),
+ sbi->ll_fsname,
PFID(&md.body->mbo_fid1));
GOTO(out, rc = -EINVAL);
}
GOTO(out, rc = 0);
out:
+ /* cleanup will be done if necessary */
md_free_lustre_md(sbi->ll_md_exp, &md);
-cleanup:
if (rc != 0 && it != NULL && it->it_op & IT_OPEN)
ll_open_cleanup(sb != NULL ? sb : (*inode)->i_sb, req);
RETURN(0);
}
-/**
- * Get lustre file system name by \a sbi. If \a buf is provided(non-NULL), the
- * fsname will be returned in this buffer; otherwise, a static buffer will be
- * used to store the fsname and returned to caller.
- */
-char *ll_get_fsname(struct super_block *sb, char *buf, int buflen)
-{
- static char fsname_static[MTI_NAME_MAXLEN];
- struct lustre_sb_info *lsi = s2lsi(sb);
- char *ptr;
- int len;
-
- if (buf == NULL) {
- /* this means the caller wants to use static buffer
- * and it doesn't care about race. Usually this is
- * in error reporting path */
- buf = fsname_static;
- buflen = sizeof(fsname_static);
- }
-
- len = strlen(lsi->lsi_lmd->lmd_profile);
- ptr = strrchr(lsi->lsi_lmd->lmd_profile, '-');
- if (ptr && (strcmp(ptr, "-client") == 0))
- len -= 7;
-
- if (unlikely(len >= buflen))
- len = buflen - 1;
- strncpy(buf, lsi->lsi_lmd->lmd_profile, len);
- buf[len] = '\0';
-
- return buf;
-}
-
static char* ll_d_path(struct dentry *dentry, char *buf, int bufsize)
{
char *path = NULL;
CDEBUG(D_WARNING,
"%s: dirty page discard: %s/fid: "DFID"/%s may get corrupted "
- "(rc %d)\n", ll_get_fsname(page->mapping->host->i_sb, NULL, 0),
+ "(rc %d)\n", ll_i2sbi(inode)->ll_fsname,
s2lsi(page->mapping->host->i_sb)->lsi_lmd->lmd_dev,
PFID(ll_inode2fid(inode)),
(path && !IS_ERR(path)) ? path : "", ioret);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff