Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) #include <linux/ceph/ceph_debug.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) #include <linux/in.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) #include "super.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) #include "mds_client.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include "ioctl.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <linux/ceph/striper.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  * ioctls
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15)  * get and set the file layout
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) static long ceph_ioctl_get_layout(struct file *file, void __user *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 	struct ceph_inode_info *ci = ceph_inode(file_inode(file));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 	struct ceph_ioctl_layout l;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 	err = ceph_do_getattr(file_inode(file), CEPH_STAT_CAP_LAYOUT, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	if (!err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 		l.stripe_unit = ci->i_layout.stripe_unit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 		l.stripe_count = ci->i_layout.stripe_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 		l.object_size = ci->i_layout.object_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 		l.data_pool = ci->i_layout.pool_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 		l.preferred_osd = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 		if (copy_to_user(arg, &l, sizeof(l)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) static long __validate_layout(struct ceph_mds_client *mdsc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 			      struct ceph_ioctl_layout *l)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	int i, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	/* validate striping parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	if ((l->object_size & ~PAGE_MASK) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	    (l->stripe_unit & ~PAGE_MASK) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	    ((unsigned)l->stripe_unit != 0 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	     ((unsigned)l->object_size % (unsigned)l->stripe_unit)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	/* make sure it's a valid data pool */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	mutex_lock(&mdsc->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	for (i = 0; i < mdsc->mdsmap->m_num_data_pg_pools; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 		if (mdsc->mdsmap->m_data_pg_pools[i] == l->data_pool) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 			err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	mutex_unlock(&mdsc->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) static long ceph_ioctl_set_layout(struct file *file, void __user *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	struct inode *inode = file_inode(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	struct ceph_mds_request *req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	struct ceph_ioctl_layout l;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	struct ceph_inode_info *ci = ceph_inode(file_inode(file));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	struct ceph_ioctl_layout nl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	if (copy_from_user(&l, arg, sizeof(l)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 		return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	/* validate changed params against current layout */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	err = ceph_do_getattr(file_inode(file), CEPH_STAT_CAP_LAYOUT, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	memset(&nl, 0, sizeof(nl));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	if (l.stripe_count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 		nl.stripe_count = l.stripe_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 		nl.stripe_count = ci->i_layout.stripe_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	if (l.stripe_unit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 		nl.stripe_unit = l.stripe_unit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 		nl.stripe_unit = ci->i_layout.stripe_unit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	if (l.object_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 		nl.object_size = l.object_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 		nl.object_size = ci->i_layout.object_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	if (l.data_pool)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 		nl.data_pool = l.data_pool;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 		nl.data_pool = ci->i_layout.pool_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	/* this is obsolete, and always -1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	nl.preferred_osd = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	err = __validate_layout(mdsc, &nl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_SETLAYOUT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 				       USE_AUTH_MDS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	if (IS_ERR(req))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 		return PTR_ERR(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	req->r_inode = inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	ihold(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	req->r_num_caps = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	req->r_inode_drop = CEPH_CAP_FILE_SHARED | CEPH_CAP_FILE_EXCL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	req->r_args.setlayout.layout.fl_stripe_unit =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 		cpu_to_le32(l.stripe_unit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	req->r_args.setlayout.layout.fl_stripe_count =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 		cpu_to_le32(l.stripe_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	req->r_args.setlayout.layout.fl_object_size =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 		cpu_to_le32(l.object_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	req->r_args.setlayout.layout.fl_pg_pool = cpu_to_le32(l.data_pool);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	err = ceph_mdsc_do_request(mdsc, NULL, req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	ceph_mdsc_put_request(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)  * Set a layout policy on a directory inode. All items in the tree
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)  * rooted at this inode will inherit this layout on creation,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)  * (It doesn't apply retroactively )
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)  * unless a subdirectory has its own layout policy.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) static long ceph_ioctl_set_layout_policy (struct file *file, void __user *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	struct inode *inode = file_inode(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	struct ceph_mds_request *req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	struct ceph_ioctl_layout l;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	/* copy and validate */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	if (copy_from_user(&l, arg, sizeof(l)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 		return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	err = __validate_layout(mdsc, &l);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_SETDIRLAYOUT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 				       USE_AUTH_MDS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	if (IS_ERR(req))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 		return PTR_ERR(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	req->r_inode = inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	ihold(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	req->r_num_caps = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	req->r_args.setlayout.layout.fl_stripe_unit =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 			cpu_to_le32(l.stripe_unit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	req->r_args.setlayout.layout.fl_stripe_count =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 			cpu_to_le32(l.stripe_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	req->r_args.setlayout.layout.fl_object_size =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 			cpu_to_le32(l.object_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	req->r_args.setlayout.layout.fl_pg_pool =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 			cpu_to_le32(l.data_pool);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	err = ceph_mdsc_do_request(mdsc, inode, req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	ceph_mdsc_put_request(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)  * Return object name, size/offset information, and location (OSD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)  * number, network address) for a given file offset.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) static long ceph_ioctl_get_dataloc(struct file *file, void __user *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	struct ceph_ioctl_dataloc dl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	struct inode *inode = file_inode(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	struct ceph_inode_info *ci = ceph_inode(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	struct ceph_osd_client *osdc =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 		&ceph_sb_to_client(inode->i_sb)->client->osdc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	struct ceph_object_locator oloc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	CEPH_DEFINE_OID_ONSTACK(oid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	u32 xlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	u64 tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	struct ceph_pg pgid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	int r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	/* copy and validate */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	if (copy_from_user(&dl, arg, sizeof(dl)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 		return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	down_read(&osdc->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	ceph_calc_file_object_mapping(&ci->i_layout, dl.file_offset, 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 				      &dl.object_no, &dl.object_offset, &xlen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	dl.file_offset -= dl.object_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	dl.object_size = ci->i_layout.object_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	dl.block_size = ci->i_layout.stripe_unit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	/* block_offset = object_offset % block_size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	tmp = dl.object_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	dl.block_offset = do_div(tmp, dl.block_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	snprintf(dl.object_name, sizeof(dl.object_name), "%llx.%08llx",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 		 ceph_ino(inode), dl.object_no);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	oloc.pool = ci->i_layout.pool_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	oloc.pool_ns = ceph_try_get_string(ci->i_layout.pool_ns);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	ceph_oid_printf(&oid, "%s", dl.object_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	r = ceph_object_locator_to_pg(osdc->osdmap, &oid, &oloc, &pgid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	ceph_oloc_destroy(&oloc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	if (r < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 		up_read(&osdc->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 		return r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	dl.osd = ceph_pg_to_acting_primary(osdc->osdmap, &pgid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	if (dl.osd >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 		struct ceph_entity_addr *a =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 			ceph_osd_addr(osdc->osdmap, dl.osd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 		if (a)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 			memcpy(&dl.osd_addr, &a->in_addr, sizeof(dl.osd_addr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 		memset(&dl.osd_addr, 0, sizeof(dl.osd_addr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	up_read(&osdc->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	/* send result back to user */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	if (copy_to_user(arg, &dl, sizeof(dl)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 		return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) static long ceph_ioctl_lazyio(struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	struct ceph_file_info *fi = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	struct inode *inode = file_inode(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	struct ceph_inode_info *ci = ceph_inode(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	struct ceph_mds_client *mdsc = ceph_inode_to_client(inode)->mdsc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	if ((fi->fmode & CEPH_FILE_MODE_LAZY) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 		spin_lock(&ci->i_ceph_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 		fi->fmode |= CEPH_FILE_MODE_LAZY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 		ci->i_nr_by_mode[ffs(CEPH_FILE_MODE_LAZY)]++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 		__ceph_touch_fmode(ci, mdsc, fi->fmode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 		spin_unlock(&ci->i_ceph_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 		dout("ioctl_layzio: file %p marked lazy\n", file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 		ceph_check_caps(ci, 0, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 		dout("ioctl_layzio: file %p already lazy\n", file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) static long ceph_ioctl_syncio(struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 	struct ceph_file_info *fi = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	fi->flags |= CEPH_F_SYNC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) long ceph_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	dout("ioctl file %p cmd %u arg %lu\n", file, cmd, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	case CEPH_IOC_GET_LAYOUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 		return ceph_ioctl_get_layout(file, (void __user *)arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	case CEPH_IOC_SET_LAYOUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 		return ceph_ioctl_set_layout(file, (void __user *)arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	case CEPH_IOC_SET_LAYOUT_POLICY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 		return ceph_ioctl_set_layout_policy(file, (void __user *)arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	case CEPH_IOC_GET_DATALOC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 		return ceph_ioctl_get_dataloc(file, (void __user *)arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	case CEPH_IOC_LAZYIO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 		return ceph_ioctl_lazyio(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	case CEPH_IOC_SYNCIO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 		return ceph_ioctl_syncio(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	return -ENOTTY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) }