+/* Blue Sky: File Systems in the Cloud
+ *
+ * Copyright (C) 2009 The Regents of the University of California
+ * Written by Michael Vrable <mvrable@cs.ucsd.edu>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
/*
* This is sample code generated by rpcgen.
* These are only templates and you can use them
extern BlueSkyFS *fs;
+#define NFS_BLOCKSIZE 32768
+#define NFS_MAXSIZE (1 << 20)
+
/* Check that a string is a valid file name. We require that it be valid
* UTF-8, that it not be empty, and that it not contain embedded forward
* slashes. Also checks that the length of the string is not more than the
inode);
result.status = NFS3_OK;
+ bluesky_inode_do_sync(inode);
+
g_mutex_unlock(inode->lock);
async_rpc_send_reply(req, &result);
}
{
read3res result;
memset(&result, 0, sizeof(result));
- char buf[32768];
+ char buf[NFS_MAXSIZE];
+
+ bluesky_flushd_invoke_conditional(fs);
BlueSkyInode *inode = lookup_fh(req, &argp->file);
if (inode == NULL) {
count = 0;
result.read3res_u.resok.eof = TRUE;
} else {
+ count = MIN(count, NFS_MAXSIZE);
count = MIN(count, inode->size - argp->offset);
if (argp->offset + count == inode->size)
result.read3res_u.resok.eof = TRUE;
struct wcc_data wcc;
memset(&wcc, 0, sizeof(wcc));
+ bluesky_flushd_invoke_conditional(fs);
+
BlueSkyInode *inode = lookup_fh(req, &argp->file);
if (inode == NULL) {
result.status = NFS3ERR_STALE;
return;
}
+#if 0
+ /* FIXME: Hack to throttle writes when there is too much dirty data still
+ * to be written out. */
+ while (g_atomic_int_get(&fs->cache_dirty) > 4096
+ || g_atomic_int_get(&fs->cache_total) > 8192) {
+ g_print("Too many dirty pages (%d) or total pages (%d); throttling writes...\n",
+ g_atomic_int_get(&fs->cache_dirty),
+ g_atomic_int_get(&fs->cache_total));
+ struct timespec delay;
+ delay.tv_sec = 2;
+ delay.tv_nsec = 0;
+ nanosleep(&delay, NULL);
+ }
+#endif
+
g_mutex_lock(inode->lock);
encode_pre_wcc(&wcc, inode);
encode_fattr3(&wcc.after.post_op_attr_u.attributes, inode);
result.write3res_u.resok.file_wcc = wcc;
result.write3res_u.resok.count = argp->count;
- result.write3res_u.resok.committed = FILE_SYNC;
+ result.write3res_u.resok.committed = UNSTABLE;
+ memcpy(result.write3res_u.resok.verf,
+ nfsd_instance_verf_cookie, NFS3_WRITEVERFSIZE);
+
+ if (argp->stable != UNSTABLE) {
+ bluesky_inode_do_sync(inode);
+ result.write3res_u.resok.committed = FILE_SYNC;
+ }
g_mutex_unlock(inode->lock);
return;
}
+ g_mutex_lock(fs->lock);
BlueSkyInode *file;
file = bluesky_new_inode(bluesky_fs_alloc_inode(fs), fs, BLUESKY_REGULAR);
file->nlink = 1;
file->mode = 0755;
int64_t time = bluesky_get_current_time();
- printf("time: %"PRIi64"\n", time);
file->mtime = time;
file->ctime = time;
file->atime = time;
file->ntime = time;
g_mutex_lock(file->lock);
bluesky_insert_inode(fs, file);
+ g_mutex_unlock(fs->lock);
bluesky_directory_insert(dir, argp->where.name, file->inum);
bluesky_inode_update_ctime(dir, TRUE);
+ bluesky_inode_update_ctime(file, FALSE);
wcc.after.present = TRUE;
encode_fattr3(&wcc.after.post_op_attr_u.attributes, dir);
result.diropres3_u.resok.obj.post_op_fh3_u.handle.data.data_len = 8;
result.diropres3_u.resok.obj.post_op_fh3_u.handle.data.data_val = (char *)&fh_bytes;
+ bluesky_inode_do_sync(file);
+ bluesky_inode_do_sync(dir);
g_mutex_unlock(file->lock);
g_mutex_unlock(dir->lock);
return;
}
+ g_mutex_lock(fs->lock);
BlueSkyInode *file;
file = bluesky_new_inode(bluesky_fs_alloc_inode(fs), fs, BLUESKY_DIRECTORY);
file->nlink = 1;
file->ntime = time;
g_mutex_lock(file->lock);
bluesky_insert_inode(fs, file);
+ g_mutex_unlock(fs->lock);
bluesky_directory_insert(dir, argp->where.name, file->inum);
set_attributes(file, &argp->attributes);
bluesky_inode_update_ctime(dir, TRUE);
+ bluesky_inode_update_ctime(file, FALSE);
wcc.after.present = TRUE;
encode_fattr3(&wcc.after.post_op_attr_u.attributes, dir);
result.diropres3_u.resok.obj.post_op_fh3_u.handle.data.data_len = 8;
result.diropres3_u.resok.obj.post_op_fh3_u.handle.data.data_val = (char *)&fh_bytes;
+ bluesky_inode_do_sync(file);
+ bluesky_inode_do_sync(dir);
g_mutex_unlock(file->lock);
g_mutex_unlock(dir->lock);
async_rpc_send_reply(req, &result);
return;
}
+ g_mutex_lock(fs->lock);
BlueSkyInode *file;
file = bluesky_new_inode(bluesky_fs_alloc_inode(fs), fs, BLUESKY_SYMLINK);
file->nlink = 1;
file->symlink_contents = g_strdup(argp->symlink.symlink_data);
g_mutex_lock(file->lock);
bluesky_insert_inode(fs, file);
+ g_mutex_unlock(fs->lock);
bluesky_directory_insert(dir, argp->where.name, file->inum);
bluesky_inode_update_ctime(dir, TRUE);
+ bluesky_inode_update_ctime(file, FALSE);
wcc.after.present = TRUE;
encode_fattr3(&wcc.after.post_op_attr_u.attributes, dir);
result.diropres3_u.resok.obj.post_op_fh3_u.handle.data.data_len = 8;
result.diropres3_u.resok.obj.post_op_fh3_u.handle.data.data_val = (char *)&fh_bytes;
+ bluesky_inode_do_sync(file);
+ bluesky_inode_do_sync(dir);
g_mutex_unlock(file->lock);
g_mutex_unlock(dir->lock);
async_rpc_send_reply(req, &result);
encode_fattr3(&result.wccstat3_u.wcc.after.post_op_attr_u.attributes,
dir);
+ bluesky_inode_do_sync(dir);
g_mutex_unlock(dir->lock);
async_rpc_send_reply(req, &result);
}
encode_fattr3(&result.wccstat3_u.wcc.after.post_op_attr_u.attributes,
dir);
+ bluesky_inode_do_sync(dir);
+ bluesky_inode_do_sync(inode);
g_mutex_unlock(inode->lock);
g_mutex_unlock(dir->lock);
async_rpc_send_reply(req, &result);
async_rpc_send_reply(req, &result);
return;
}
- g_mutex_lock(dir1->lock);
- encode_pre_wcc(wcc1, dir1);
BlueSkyInode *dir2 = lookup_fh(req, &argp->to.dir);
if (dir2 == NULL) {
result.status = NFS3ERR_STALE;
- g_mutex_unlock(dir1->lock);
async_rpc_send_reply(req, &result);
return;
}
- g_mutex_lock(dir2->lock);
+
+ if (dir1->inum < dir2->inum) {
+ g_mutex_lock(dir1->lock);
+ g_mutex_lock(dir2->lock);
+ } else if (dir1->inum > dir2->inum) {
+ g_mutex_lock(dir2->lock);
+ g_mutex_lock(dir1->lock);
+ }
+ encode_pre_wcc(wcc1, dir1);
encode_pre_wcc(wcc2, dir1);
gboolean status = bluesky_rename(dir1, argp->from.name,
else
result.status = NFS3ERR_PERM;
- g_mutex_unlock(dir2->lock);
+ bluesky_inode_do_sync(dir2);
+ bluesky_inode_do_sync(dir1);
+
g_mutex_unlock(dir1->lock);
+ if (dir1->inum != dir2->inum)
+ g_mutex_unlock(dir2->lock);
async_rpc_send_reply(req, &result);
}
encode_fattr3(&result.link3res_u.res.file_attributes.post_op_attr_u.attributes, inode);
result.link3res_u.res.linkdir_wcc = wcc;
+ bluesky_inode_do_sync(inode);
+ bluesky_inode_do_sync(dir);
g_mutex_unlock(inode->lock);
g_mutex_unlock(dir->lock);
async_rpc_send_reply(req, &result);
&& dircount + attrcount <= argp->maxcount)
{
BlueSkyDirent *d = g_sequence_get(i);
- BlueSkyInode *inode = bluesky_get_inode(fs, d->inum);
- if (inode != NULL)
- bluesky_inode_unref(inode);
+ bluesky_inode_prefetch(fs, d->inum);
dircount += 24 + ((strlen(d->name) + 3) & ~3);
attrcount += 88 + 8 + 8;
i = g_sequence_iter_next(i);
while (count < MAX_READDIR_DIRENTS && !g_sequence_iter_is_end(i)) {
BlueSkyDirent *d = g_sequence_get(i);
BlueSkyInode *inode = bluesky_get_inode(fs, d->inum);
- g_mutex_lock(inode->lock);
if (inode != NULL) {
+ g_mutex_lock(inode->lock);
dircount += 24 + ((strlen(d->name) + 3) & ~3);
attrcount += 88 + 8 + 8;
if (dircount > argp->dircount
result.status = NFS3_OK;
result.fsinfo3res_u.resok.obj_attributes.present = TRUE;
encode_fattr3(&result.fsinfo3res_u.resok.obj_attributes.post_op_attr_u.attributes, inode);
- result.fsinfo3res_u.resok.rtmax = 32768;
- result.fsinfo3res_u.resok.rtpref = 32768;
- result.fsinfo3res_u.resok.rtmult = 4096;
- result.fsinfo3res_u.resok.wtmax = 32768;
- result.fsinfo3res_u.resok.wtpref = 32768;
- result.fsinfo3res_u.resok.wtmult = 4096;
- result.fsinfo3res_u.resok.dtpref = 4096;
+ result.fsinfo3res_u.resok.rtmax = NFS_MAXSIZE;
+ result.fsinfo3res_u.resok.rtpref = NFS_MAXSIZE;
+ result.fsinfo3res_u.resok.rtmult = NFS_BLOCKSIZE;
+ result.fsinfo3res_u.resok.wtmax = NFS_MAXSIZE;
+ result.fsinfo3res_u.resok.wtpref = NFS_MAXSIZE;
+ result.fsinfo3res_u.resok.wtmult = NFS_BLOCKSIZE;
+ result.fsinfo3res_u.resok.dtpref = NFS_BLOCKSIZE;
result.fsinfo3res_u.resok.maxfilesize = 0x7fffffffffffffffULL;
result.fsinfo3res_u.resok.time_delta.seconds = 0;
result.fsinfo3res_u.resok.time_delta.nseconds = 1000;
commit3res result;
memset(&result, 0, sizeof(result));
- result.status = NFS3ERR_NOTSUPP;
+ result.status = NFS3_OK;
BlueSkyInode *inode = lookup_fh(req, &argp->file);
if (inode == NULL) {
result.commit3res_u.resok.file_wcc.after.present = TRUE;
encode_fattr3(&result.commit3res_u.resok.file_wcc.after.post_op_attr_u.attributes, inode);
+ memcpy(result.commit3res_u.resok.verf,
+ nfsd_instance_verf_cookie, NFS3_WRITEVERFSIZE);
g_mutex_unlock(inode->lock);
projects / bluesky.git / blobdiff