#include <inode.h>
#include <file.h>
+#undef LIST_HEAD
+
#include "llite_lib.h"
static void llu_fsop_gone(struct filesys *fs)
obdo_refresh_inode(inode, &oa, refresh_valid);
-/*
- if (inode->i_blksize < PAGE_CACHE_SIZE)
- inode->i_blksize = PAGE_CACHE_SIZE;
-
- CDEBUG(D_INODE, "objid "LPX64" size %Lu, blocks %lu, blksize %lu\n",
- lsm->lsm_object_id, inode->i_size, inode->i_blocks,
- inode->i_blksize);
-*/
RETURN(0);
}
return inode;
}
-#if 0
-static int ll_intent_to_lock_mode(struct lookup_intent *it)
-{
- /* CREAT needs to be tested before open (both could be set) */
- if (it->it_op & IT_CREAT)
- return LCK_PW;
- else if (it->it_op & (IT_READDIR | IT_GETATTR | IT_OPEN | IT_LOOKUP))
- return LCK_PR;
-
- LBUG();
- RETURN(-EINVAL);
-}
-#endif
-
-#if 0
-int ll_it_open_error(int phase, struct lookup_intent *it)
-{
- if (it_disposition(it, DISP_OPEN_OPEN)) {
- if (phase == DISP_OPEN_OPEN)
- return it->d.lustre.it_status;
- else
- return 0;
- }
-
- if (it_disposition(it, DISP_OPEN_CREATE)) {
- if (phase == DISP_OPEN_CREATE)
- return it->d.lustre.it_status;
- else
- return 0;
- }
-
- if (it_disposition(it, DISP_LOOKUP_EXECD)) {
- if (phase == DISP_LOOKUP_EXECD)
- return it->d.lustre.it_status;
- else
- return 0;
- }
- CERROR("it disp: %X, status: %d\n", it->d.lustre.it_disposition, it->d.lustre.it_status);
- LBUG();
- return 0;
-}
-#endif
-
static int llu_have_md_lock(struct inode *inode)
{
struct llu_sb_info *sbi = llu_i2sbi(inode);
CDEBUG(D_INFO, "trying to match res "LPU64"\n", res_id.name[0]);
+ /* FIXME use LDLM_FL_TEST_LOCK instead */
flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_CBPENDING;
if (ldlm_lock_match(obddev->obd_namespace, flags, &res_id, LDLM_PLAIN,
- NULL, 0, LCK_PR, &lockh)) {
+ NULL, LCK_PR, &lockh)) {
ldlm_lock_decref(&lockh, LCK_PR);
RETURN(1);
}
if (ldlm_lock_match(obddev->obd_namespace, flags, &res_id, LDLM_PLAIN,
- NULL, 0, LCK_PW, &lockh)) {
+ NULL, LCK_PW, &lockh)) {
ldlm_lock_decref(&lockh, LCK_PW);
RETURN(1);
}
if (!lsm) /* object not yet allocated, don't validate size */
RETURN(0);
- /*
- * unfortunately stat comes in through revalidate and we don't
- * differentiate this use from initial instantiation. we're
- * also being wildly conservative and flushing write caches
- * so that stat really returns the proper size.
- */
+ /* ll_glimpse_size will prefer locally cached writes if they extend
+ * the file */
{
- struct ldlm_extent extent = {0, OBD_OBJECT_EOF};
- struct lustre_handle lockh = {0};
+ struct ost_lvb lvb;
ldlm_error_t err;
- err = llu_extent_lock(NULL, inode, lsm, LCK_PR, &extent, &lockh);
- if (err != ELDLM_OK)
- RETURN(err);
-
- llu_extent_unlock(NULL, inode, lsm, LCK_PR, &lockh);
+ err = llu_glimpse_size(inode, &lvb);
+ lli->lli_st_size = lvb.lvb_size;
}
RETURN(0);
}
rc = llu_inode_revalidate(ino);
if (!rc) {
copy_stat_buf(ino, b);
-
- if (llu_i2info(ino)->lli_it) {
- struct lookup_intent *it;
-
- LL_GET_INTENT(ino, it);
- it->it_op_release(it);
- OBD_FREE(it, sizeof(*it));
- }
+ LASSERT(!llu_i2info(ino)->lli_it);
}
RETURN(rc);
* I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE
* at the same time.
*/
-#define OST_ATTR (ATTR_MTIME | ATTR_MTIME_SET | ATTR_CTIME | \
- ATTR_ATIME | ATTR_ATIME_SET | ATTR_SIZE)
int llu_setattr_raw(struct inode *inode, struct iattr *attr)
{
struct lov_stripe_md *lsm = llu_i2info(inode)->lli_smd;
/* If only OST attributes being set on objects, don't do MDS RPC.
* In that case, we need to check permissions and update the local
* inode ourselves so we can call obdo_from_inode() always. */
- if (ia_valid & (lsm ? ~(OST_ATTR | ATTR_FROM_OPEN | ATTR_RAW) : ~0)) {
+ if (ia_valid & (lsm ? ~(ATTR_SIZE | ATTR_FROM_OPEN | ATTR_RAW) : ~0)) {
struct lustre_md md;
llu_prepare_mdc_op_data(&op_data, inode, NULL, NULL, 0, 0);
}
if (ia_valid & ATTR_SIZE) {
- struct ldlm_extent extent = { .start = attr->ia_size,
- .end = OBD_OBJECT_EOF };
+ ldlm_policy_data_t policy = { .l_extent = {attr->ia_size,
+ OBD_OBJECT_EOF} };
struct lustre_handle lockh = { 0 };
int err, ast_flags = 0;
/* XXX when we fix the AST intents to pass the discard-range
* XXX extent, make ast_flags always LDLM_AST_DISCARD_DATA
* XXX here. */
-
- /* Writeback uses inode->i_size to determine how far out
- * its cached pages go. ll_truncate gets a PW lock, canceling
- * our lock, _after_ it has updated i_size. this can confuse
- *
- * We really need to get our PW lock before we change
- * inode->i_size. If we don't we can race with other
- * i_size updaters on our node, like ll_file_read. We
- * can also race with i_size propogation to other
- * nodes through dirtying and writeback of final cached
- * pages. This last one is especially bad for racing
- * o_append users on other nodes. */
- if (extent.start == 0)
+ if (attr->ia_size == 0)
ast_flags = LDLM_AST_DISCARD_DATA;
- rc = llu_extent_lock_no_validate(NULL, inode, lsm, LCK_PW,
- &extent, &lockh, ast_flags);
+
+ rc = llu_extent_lock(NULL, inode, lsm, LCK_PW, &policy,
+ &lockh, ast_flags);
if (rc != ELDLM_OK) {
if (rc > 0)
RETURN(-ENOLCK);
RETURN(rc);
}
-/* FIXME here we simply act as a thin layer to glue it with
+/* here we simply act as a thin layer to glue it with
* llu_setattr_raw(), which is copy from kernel
*/
static int llu_iop_setattr(struct pnode *pno,
iattr.ia_valid |= ATTR_GID;
}
if (mask & SETATTR_LEN) {
- iattr.ia_size = stbuf->st_size; /* FIXME signed expansion problem */
+ iattr.ia_size = stbuf->st_size; /* XXX signed expansion problem */
iattr.ia_valid |= ATTR_SIZE;
}
int rc;
ENTRY;
- /* on symlinks lli_open_sem protects lli_symlink_name allocation/data */
-/*
- down(&lli->lli_open_sem);
-*/
rc = llu_readlink_internal(inode, &request, &symname);
if (rc)
GOTO(out, rc);
ptlrpc_req_finished(request);
out:
-/*
- up(&lli->lli_open_sem);
-*/
RETURN(rc);
}
RETURN(err);
}
-#if 0
-static int llu_mdc_unlink(struct inode *dir, struct inode *child, __u32 mode,
- const char *name, int len)
-{
- struct ptlrpc_request *request = NULL;
- struct mds_body *body;
- struct lov_mds_md *eadata;
- struct lov_stripe_md *lsm = NULL;
- struct obd_trans_info oti = { 0 };
- struct mdc_op_data op_data;
- struct obdo *oa;
- int rc;
- ENTRY;
-
- llu_prepare_mdc_op_data(&op_data, dir, child, name, len, mode);
- rc = mdc_unlink(&llu_i2sbi(dir)->ll_mdc_conn, &op_data, &request);
- if (rc)
- GOTO(out, rc);
- /* req is swabbed so this is safe */
- body = lustre_msg_buf(request->rq_repmsg, 0, sizeof(*body));
-
- if (!(body->valid & OBD_MD_FLEASIZE))
- GOTO(out, rc = 0);
-
- if (body->eadatasize == 0) {
- CERROR("OBD_MD_FLEASIZE set but eadatasize zero\n");
- GOTO(out, rc = -EPROTO);
- }
-
- /* The MDS sent back the EA because we unlinked the last reference
- * to this file. Use this EA to unlink the objects on the OST.
- * It's opaque so we don't swab here; we leave it to obd_unpackmd() to
- * check it is complete and sensible. */
- eadata = lustre_swab_repbuf(request, 1, body->eadatasize, NULL);
- LASSERT(eadata != NULL);
- if (eadata == NULL) {
- CERROR("Can't unpack MDS EA data\n");
- GOTO(out, rc = -EPROTO);
- }
-
- rc = obd_unpackmd(llu_i2obdconn(dir), &lsm, eadata, body->eadatasize);
- if (rc < 0) {
- CERROR("obd_unpackmd: %d\n", rc);
- GOTO(out, rc);
- }
- LASSERT(rc >= sizeof(*lsm));
-
- oa = obdo_alloc();
- if (oa == NULL)
- GOTO(out_free_memmd, rc = -ENOMEM);
-
- oa->o_id = lsm->lsm_object_id;
- oa->o_mode = body->mode & S_IFMT;
- oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE;
-
- if (body->valid & OBD_MD_FLCOOKIE) {
- oa->o_valid |= OBD_MD_FLCOOKIE;
- oti.oti_logcookies = lustre_msg_buf(request->rq_repmsg, 3,
- body->eadatasize);
- }
-
- rc = obd_destroy(llu_i2obdconn(dir), oa, lsm, &oti);
- obdo_free(oa);
- if (rc)
- CERROR("obd destroy objid 0x"LPX64" error %d\n",
- lsm->lsm_object_id, rc);
- out_free_memmd:
- obd_free_memmd(llu_i2obdconn(dir), &lsm);
- out:
- ptlrpc_req_finished(request);
- return rc;
-}
-#endif
-
static int llu_iop_link_raw(struct pnode *old, struct pnode *new)
{
struct inode *src = old->p_base->pb_ino;
RETURN(rc);
}
-#if 0
+#ifdef _HAVE_STATVFS
static int llu_statfs_internal(struct llu_sb_info *sbi,
struct obd_statfs *osfs,
unsigned long max_age)
RETURN(rc);
}
-static int llu_statfs(struct llu_sb_info *sbi, struct kstatfs *sfs)
+static int llu_statfs(struct llu_sb_info *sbi, struct statfs *sfs)
{
struct obd_statfs osfs;
int rc;
RETURN(0);
}
-#endif
+#endif /* _HAVE_STATVFS */
static int llu_iop_mkdir_raw(struct pnode *pno, mode_t mode)
{
return -ENOSYS;
}
+static int llu_get_cwlock(struct inode *inode, unsigned long arg)
+{
+ struct llu_inode_info *lli = llu_i2info(inode);
+ struct ll_file_data *fd = lli->lli_file_data;
+ ldlm_policy_data_t policy = { .l_extent = { .start = 0,
+ .end = OBD_OBJECT_EOF}};
+ struct lustre_handle lockh = { 0 };
+ struct lov_stripe_md *lsm = lli->lli_smd;
+ ldlm_error_t err;
+ int flags = 0;
+ ENTRY;
+
+ if (fd->fd_flags & LL_FILE_CW_LOCKED) {
+ RETURN(-EINVAL);
+ }
+
+ policy.l_extent.gid = arg;
+ if (lli->lli_open_flags & O_NONBLOCK)
+ flags = LDLM_FL_BLOCK_NOWAIT;
+
+ err = llu_extent_lock(fd, inode, lsm, LCK_CW, &policy, &lockh, flags);
+ if (err)
+ RETURN(err);
+
+ fd->fd_flags |= LL_FILE_CW_LOCKED|LL_FILE_IGNORE_LOCK;
+ fd->fd_gid = arg;
+ memcpy(&fd->fd_cwlockh, &lockh, sizeof(lockh));
+
+ RETURN(0);
+}
+
+static int llu_put_cwlock(struct inode *inode, unsigned long arg)
+{
+ struct llu_inode_info *lli = llu_i2info(inode);
+ struct ll_file_data *fd = lli->lli_file_data;
+ struct lov_stripe_md *lsm = lli->lli_smd;
+ ldlm_error_t err;
+ ENTRY;
+
+ if (!(fd->fd_flags & LL_FILE_CW_LOCKED))
+ RETURN(-EINVAL);
+
+ if (fd->fd_gid != arg)
+ RETURN(-EINVAL);
+
+ fd->fd_flags &= ~(LL_FILE_CW_LOCKED|LL_FILE_IGNORE_LOCK);
+
+ err = llu_extent_unlock(fd, inode, lsm, LCK_CW, &fd->fd_cwlockh);
+ if (err)
+ RETURN(err);
+
+ fd->fd_gid = 0;
+ memset(&fd->fd_cwlockh, 0, sizeof(fd->fd_cwlockh));
+
+ RETURN(0);
+}
+
static int llu_iop_ioctl(struct inode *ino, unsigned long int request,
va_list ap)
{
- CERROR("liblustre did not support ioctl\n");
+ unsigned long arg;
+
+ switch (request) {
+ case LL_IOC_CW_LOCK:
+ arg = va_arg(ap, unsigned long);
+ return llu_get_cwlock(ino, arg);
+ case LL_IOC_CW_UNLOCK:
+ arg = va_arg(ap, unsigned long);
+ return llu_put_cwlock(ino, arg);
+ }
+
+ CERROR("did not support ioctl cmd %lx\n", request);
return -ENOSYS;
}
inode = _sysio_i_find(fs, &fileid);
if (inode) {
- if (llu_i2info(inode)->lli_st_generation ==
- md->body->generation) {
+ struct llu_inode_info *lli = llu_i2info(inode);
+
+ if (lli->lli_stale_flag ||
+ lli->lli_st_generation != md->body->generation)
+ I_RELE(inode);
+ else {
llu_update_inode(inode, md->body, md->lsm);
return inode;
- } else
- I_RELE(inode);
+ }
}
inode = llu_new_inode(fs, &fid);
GOTO(out_free, err = -EINVAL);
}
- /* XXX */
/* generate a string unique to this super, let's try
the address of the super itself.*/
len = (sizeof(sbi) * 2) + 1;
cfg.cfg_instance = sbi->ll_instance;
cfg.cfg_uuid = sbi->ll_sb_uuid;
- err = liblustre_process_log(&cfg);
+ err = liblustre_process_log(&cfg, 1);
if (err < 0) {
CERROR("Unable to process log: %s\n", g_zconf_profile);
inop_lookup: llu_iop_lookup,
inop_getattr: llu_iop_getattr,
inop_setattr: llu_iop_setattr,
- inop_getdirentries: NULL,
+ inop_getdirentries: llu_iop_getdirentries,
inop_mkdir: llu_iop_mkdir_raw,
inop_rmdir: llu_iop_rmdir_raw,
inop_symlink: llu_iop_symlink_raw,
inop_datasync: llu_iop_datasync,
inop_ioctl: llu_iop_ioctl,
inop_mknod: llu_iop_mknod_raw,
-#if 0
+#ifdef _HAVE_STATVFS
inop_statvfs: llu_iop_statvfs,
#endif
inop_gone: llu_iop_gone,
};
+#warning "time_after() defined in liblustre.h need to be rewrite in userspace"
git://git.whamcloud.com / fs / lustre-release.git / blobdiff