cfs_mem_cache_t *ll_file_data_slab;
CFS_LIST_HEAD(ll_super_blocks);
-cfs_spinlock_t ll_sb_lock = CFS_SPIN_LOCK_UNLOCKED;
+DEFINE_SPINLOCK(ll_sb_lock);
#ifndef MS_HAS_NEW_AOPS
extern struct address_space_operations ll_aops;
CDEBUG(D_SUPER, "rootfid "DFID"\n", PFID(&sbi->ll_root_fid));
sb->s_op = &lustre_super_operations;
-#if THREAD_SIZE >= 8192
+#if THREAD_SIZE >= 8192 /*b=17630*/ && !defined(HAVE_FSTYPE_MOUNT) /*LU-812*/
sb->s_export_op = &lustre_export_operations;
#endif
if (recur == 0)
return;
- list_for_each(tmp, &dentry->d_subdirs) {
- struct dentry *d = list_entry(tmp, struct dentry, d_child);
- lustre_dump_dentry(d, recur - 1);
- }
+ list_for_each(tmp, &dentry->d_subdirs) {
+ struct dentry *d = list_entry(tmp, struct dentry, d_u.d_child);
+ lustre_dump_dentry(d, recur - 1);
+ }
}
void client_common_put_super(struct super_block *sb)
lli->lli_symlink_name = NULL;
cfs_init_rwsem(&lli->lli_trunc_sem);
cfs_mutex_init(&lli->lli_write_mutex);
- lli->lli_async_rc = 0;
- lli->lli_write_rc = 0;
- cfs_init_rwsem(&lli->lli_glimpse_sem);
- lli->lli_glimpse_time = 0;
- CFS_INIT_LIST_HEAD(&lli->lli_agl_list);
- lli->lli_agl_index = 0;
- }
+ cfs_init_rwsem(&lli->lli_glimpse_sem);
+ lli->lli_glimpse_time = 0;
+ CFS_INIT_LIST_HEAD(&lli->lli_agl_list);
+ lli->lli_agl_index = 0;
+ lli->lli_async_rc = 0;
+ }
cfs_mutex_init(&lli->lli_layout_mutex);
}
return rc;
}
+#ifndef HAVE_VFS_INODE_NEWSIZE_OK
+/**
+ * inode_newsize_ok - may this inode be truncated to a given size
+ * @inode: the inode to be truncated
+ * @offset: the new size to assign to the inode
+ * @Returns: 0 on success, -ve errno on failure
+ *
+ * inode_newsize_ok will check filesystem limits and ulimits to check that the
+ * new inode size is within limits. inode_newsize_ok will also send SIGXFSZ
+ * when necessary. Caller must not proceed with inode size change if failure is
+ * returned. @inode must be a file (not directory), with appropriate
+ * permissions to allow truncate (inode_newsize_ok does NOT check these
+ * conditions).
+ *
+ * inode_newsize_ok must be called with i_mutex held.
+ */
+int inode_newsize_ok(const struct inode *inode, loff_t offset)
+{
+ if (inode->i_size < offset) {
+ unsigned long limit;
+
+ limit = rlimit(RLIMIT_FSIZE);
+ if (limit != RLIM_INFINITY && offset > limit)
+ goto out_sig;
+ if (offset > inode->i_sb->s_maxbytes)
+ goto out_big;
+ } else {
+ /*
+ * truncation of in-use swapfiles is disallowed - it would
+ * cause subsequent swapout to scribble on the now-freed
+ * blocks.
+ */
+ if (IS_SWAPFILE(inode))
+ return -ETXTBSY;
+ }
+
+ return 0;
+out_sig:
+ send_sig(SIGXFSZ, current, 0);
+out_big:
+ return -EFBIG;
+}
+#endif
+
/* If this inode has objects allocated to it (lsm != NULL), then the OST
* object(s) determine the file size and mtime. Otherwise, the MDS will
* keep these values until such a time that objects are allocated for it.
if (op_data == NULL)
RETURN(-ENOMEM);
- if (!S_ISDIR(inode->i_mode)) {
- if (ia_valid & ATTR_SIZE)
- UP_WRITE_I_ALLOC_SEM(inode);
- UNLOCK_INODE_MUTEX(inode);
- cfs_down_write(&lli->lli_trunc_sem);
- LOCK_INODE_MUTEX(inode);
- if (ia_valid & ATTR_SIZE)
- DOWN_WRITE_I_ALLOC_SEM(inode);
- }
+ if (!S_ISDIR(inode->i_mode)) {
+ if (ia_valid & ATTR_SIZE)
+ UP_WRITE_I_ALLOC_SEM(inode);
+ mutex_unlock(&inode->i_mutex);
+ cfs_down_write(&lli->lli_trunc_sem);
+ mutex_lock(&inode->i_mutex);
+ if (ia_valid & ATTR_SIZE)
+ DOWN_WRITE_I_ALLOC_SEM(inode);
+ }
/* We need a steady stripe configuration for setattr to avoid
* confusion. */
RETURN(rc);
}
-#ifndef HAVE_STATFS_DENTRY_PARAM
-int ll_statfs(struct super_block *sb, struct kstatfs *sfs)
-{
-#else
int ll_statfs(struct dentry *de, struct kstatfs *sfs)
{
- struct super_block *sb = de->d_sb;
-#endif
- struct obd_statfs osfs;
- int rc;
+ struct super_block *sb = de->d_sb;
+ struct obd_statfs osfs;
+ int rc;
CDEBUG(D_VFSTRACE, "VFS Op: at "LPU64" jiffies\n", get_jiffies_64());
ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_STAFS, 1);
} else {
inode->i_blkbits = inode->i_sb->s_blocksize_bits;
}
-#ifdef HAVE_INODE_BLKSIZE
- inode->i_blksize = 1<<inode->i_blkbits;
-#endif
if (body->valid & OBD_MD_FLUID)
inode->i_uid = body->uid;
if (body->valid & OBD_MD_FLGID)