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Diffstat (limited to 'ANDROID_3.4.5/fs/ceph/ioctl.c')
-rw-r--r--ANDROID_3.4.5/fs/ceph/ioctl.c290
1 files changed, 0 insertions, 290 deletions
diff --git a/ANDROID_3.4.5/fs/ceph/ioctl.c b/ANDROID_3.4.5/fs/ceph/ioctl.c
deleted file mode 100644
index 790914a5..00000000
--- a/ANDROID_3.4.5/fs/ceph/ioctl.c
+++ /dev/null
@@ -1,290 +0,0 @@
-#include <linux/in.h>
-
-#include "super.h"
-#include "mds_client.h"
-#include <linux/ceph/ceph_debug.h>
-
-#include "ioctl.h"
-
-
-/*
- * ioctls
- */
-
-/*
- * get and set the file layout
- */
-static long ceph_ioctl_get_layout(struct file *file, void __user *arg)
-{
- struct ceph_inode_info *ci = ceph_inode(file->f_dentry->d_inode);
- struct ceph_ioctl_layout l;
- int err;
-
- err = ceph_do_getattr(file->f_dentry->d_inode, CEPH_STAT_CAP_LAYOUT);
- if (!err) {
- l.stripe_unit = ceph_file_layout_su(ci->i_layout);
- l.stripe_count = ceph_file_layout_stripe_count(ci->i_layout);
- l.object_size = ceph_file_layout_object_size(ci->i_layout);
- l.data_pool = le32_to_cpu(ci->i_layout.fl_pg_pool);
- l.preferred_osd =
- (s32)le32_to_cpu(ci->i_layout.fl_pg_preferred);
- if (copy_to_user(arg, &l, sizeof(l)))
- return -EFAULT;
- }
-
- return err;
-}
-
-static long ceph_ioctl_set_layout(struct file *file, void __user *arg)
-{
- struct inode *inode = file->f_dentry->d_inode;
- struct inode *parent_inode;
- struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
- struct ceph_mds_request *req;
- struct ceph_ioctl_layout l;
- struct ceph_inode_info *ci = ceph_inode(file->f_dentry->d_inode);
- struct ceph_ioctl_layout nl;
- int err, i;
-
- if (copy_from_user(&l, arg, sizeof(l)))
- return -EFAULT;
-
- /* validate changed params against current layout */
- err = ceph_do_getattr(file->f_dentry->d_inode, CEPH_STAT_CAP_LAYOUT);
- if (!err) {
- nl.stripe_unit = ceph_file_layout_su(ci->i_layout);
- nl.stripe_count = ceph_file_layout_stripe_count(ci->i_layout);
- nl.object_size = ceph_file_layout_object_size(ci->i_layout);
- nl.data_pool = le32_to_cpu(ci->i_layout.fl_pg_pool);
- nl.preferred_osd =
- (s32)le32_to_cpu(ci->i_layout.fl_pg_preferred);
- } else
- return err;
-
- if (l.stripe_count)
- nl.stripe_count = l.stripe_count;
- if (l.stripe_unit)
- nl.stripe_unit = l.stripe_unit;
- if (l.object_size)
- nl.object_size = l.object_size;
- if (l.data_pool)
- nl.data_pool = l.data_pool;
- if (l.preferred_osd)
- nl.preferred_osd = l.preferred_osd;
-
- if ((nl.object_size & ~PAGE_MASK) ||
- (nl.stripe_unit & ~PAGE_MASK) ||
- ((unsigned)nl.object_size % (unsigned)nl.stripe_unit))
- return -EINVAL;
-
- /* make sure it's a valid data pool */
- if (l.data_pool > 0) {
- mutex_lock(&mdsc->mutex);
- err = -EINVAL;
- for (i = 0; i < mdsc->mdsmap->m_num_data_pg_pools; i++)
- if (mdsc->mdsmap->m_data_pg_pools[i] == l.data_pool) {
- err = 0;
- break;
- }
- mutex_unlock(&mdsc->mutex);
- if (err)
- return err;
- }
-
- req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_SETLAYOUT,
- USE_AUTH_MDS);
- if (IS_ERR(req))
- return PTR_ERR(req);
- req->r_inode = inode;
- ihold(inode);
- req->r_inode_drop = CEPH_CAP_FILE_SHARED | CEPH_CAP_FILE_EXCL;
-
- req->r_args.setlayout.layout.fl_stripe_unit =
- cpu_to_le32(l.stripe_unit);
- req->r_args.setlayout.layout.fl_stripe_count =
- cpu_to_le32(l.stripe_count);
- req->r_args.setlayout.layout.fl_object_size =
- cpu_to_le32(l.object_size);
- req->r_args.setlayout.layout.fl_pg_pool = cpu_to_le32(l.data_pool);
- req->r_args.setlayout.layout.fl_pg_preferred =
- cpu_to_le32(l.preferred_osd);
-
- parent_inode = ceph_get_dentry_parent_inode(file->f_dentry);
- err = ceph_mdsc_do_request(mdsc, parent_inode, req);
- iput(parent_inode);
- ceph_mdsc_put_request(req);
- return err;
-}
-
-/*
- * Set a layout policy on a directory inode. All items in the tree
- * rooted at this inode will inherit this layout on creation,
- * (It doesn't apply retroactively )
- * unless a subdirectory has its own layout policy.
- */
-static long ceph_ioctl_set_layout_policy (struct file *file, void __user *arg)
-{
- struct inode *inode = file->f_dentry->d_inode;
- struct ceph_mds_request *req;
- struct ceph_ioctl_layout l;
- int err, i;
- struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
-
- /* copy and validate */
- if (copy_from_user(&l, arg, sizeof(l)))
- return -EFAULT;
-
- if ((l.object_size & ~PAGE_MASK) ||
- (l.stripe_unit & ~PAGE_MASK) ||
- !l.stripe_unit ||
- (l.object_size &&
- (unsigned)l.object_size % (unsigned)l.stripe_unit))
- return -EINVAL;
-
- /* make sure it's a valid data pool */
- if (l.data_pool > 0) {
- mutex_lock(&mdsc->mutex);
- err = -EINVAL;
- for (i = 0; i < mdsc->mdsmap->m_num_data_pg_pools; i++)
- if (mdsc->mdsmap->m_data_pg_pools[i] == l.data_pool) {
- err = 0;
- break;
- }
- mutex_unlock(&mdsc->mutex);
- if (err)
- return err;
- }
-
- req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_SETDIRLAYOUT,
- USE_AUTH_MDS);
-
- if (IS_ERR(req))
- return PTR_ERR(req);
- req->r_inode = inode;
- ihold(inode);
-
- req->r_args.setlayout.layout.fl_stripe_unit =
- cpu_to_le32(l.stripe_unit);
- req->r_args.setlayout.layout.fl_stripe_count =
- cpu_to_le32(l.stripe_count);
- req->r_args.setlayout.layout.fl_object_size =
- cpu_to_le32(l.object_size);
- req->r_args.setlayout.layout.fl_pg_pool =
- cpu_to_le32(l.data_pool);
- req->r_args.setlayout.layout.fl_pg_preferred =
- cpu_to_le32(l.preferred_osd);
-
- err = ceph_mdsc_do_request(mdsc, inode, req);
- ceph_mdsc_put_request(req);
- return err;
-}
-
-/*
- * Return object name, size/offset information, and location (OSD
- * number, network address) for a given file offset.
- */
-static long ceph_ioctl_get_dataloc(struct file *file, void __user *arg)
-{
- struct ceph_ioctl_dataloc dl;
- struct inode *inode = file->f_dentry->d_inode;
- struct ceph_inode_info *ci = ceph_inode(inode);
- struct ceph_osd_client *osdc =
- &ceph_sb_to_client(inode->i_sb)->client->osdc;
- u64 len = 1, olen;
- u64 tmp;
- struct ceph_object_layout ol;
- struct ceph_pg pgid;
-
- /* copy and validate */
- if (copy_from_user(&dl, arg, sizeof(dl)))
- return -EFAULT;
-
- down_read(&osdc->map_sem);
- ceph_calc_file_object_mapping(&ci->i_layout, dl.file_offset, &len,
- &dl.object_no, &dl.object_offset, &olen);
- dl.file_offset -= dl.object_offset;
- dl.object_size = ceph_file_layout_object_size(ci->i_layout);
- dl.block_size = ceph_file_layout_su(ci->i_layout);
-
- /* block_offset = object_offset % block_size */
- tmp = dl.object_offset;
- dl.block_offset = do_div(tmp, dl.block_size);
-
- snprintf(dl.object_name, sizeof(dl.object_name), "%llx.%08llx",
- ceph_ino(inode), dl.object_no);
- ceph_calc_object_layout(&ol, dl.object_name, &ci->i_layout,
- osdc->osdmap);
-
- pgid = ol.ol_pgid;
- dl.osd = ceph_calc_pg_primary(osdc->osdmap, pgid);
- if (dl.osd >= 0) {
- struct ceph_entity_addr *a =
- ceph_osd_addr(osdc->osdmap, dl.osd);
- if (a)
- memcpy(&dl.osd_addr, &a->in_addr, sizeof(dl.osd_addr));
- } else {
- memset(&dl.osd_addr, 0, sizeof(dl.osd_addr));
- }
- up_read(&osdc->map_sem);
-
- /* send result back to user */
- if (copy_to_user(arg, &dl, sizeof(dl)))
- return -EFAULT;
-
- return 0;
-}
-
-static long ceph_ioctl_lazyio(struct file *file)
-{
- struct ceph_file_info *fi = file->private_data;
- struct inode *inode = file->f_dentry->d_inode;
- struct ceph_inode_info *ci = ceph_inode(inode);
-
- if ((fi->fmode & CEPH_FILE_MODE_LAZY) == 0) {
- spin_lock(&ci->i_ceph_lock);
- ci->i_nr_by_mode[fi->fmode]--;
- fi->fmode |= CEPH_FILE_MODE_LAZY;
- ci->i_nr_by_mode[fi->fmode]++;
- spin_unlock(&ci->i_ceph_lock);
- dout("ioctl_layzio: file %p marked lazy\n", file);
-
- ceph_check_caps(ci, 0, NULL);
- } else {
- dout("ioctl_layzio: file %p already lazy\n", file);
- }
- return 0;
-}
-
-static long ceph_ioctl_syncio(struct file *file)
-{
- struct ceph_file_info *fi = file->private_data;
-
- fi->flags |= CEPH_F_SYNC;
- return 0;
-}
-
-long ceph_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
- dout("ioctl file %p cmd %u arg %lu\n", file, cmd, arg);
- switch (cmd) {
- case CEPH_IOC_GET_LAYOUT:
- return ceph_ioctl_get_layout(file, (void __user *)arg);
-
- case CEPH_IOC_SET_LAYOUT:
- return ceph_ioctl_set_layout(file, (void __user *)arg);
-
- case CEPH_IOC_SET_LAYOUT_POLICY:
- return ceph_ioctl_set_layout_policy(file, (void __user *)arg);
-
- case CEPH_IOC_GET_DATALOC:
- return ceph_ioctl_get_dataloc(file, (void __user *)arg);
-
- case CEPH_IOC_LAZYIO:
- return ceph_ioctl_lazyio(file);
-
- case CEPH_IOC_SYNCIO:
- return ceph_ioctl_syncio(file);
- }
-
- return -ENOTTY;
-}