diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index c222137..09a97b5 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -479,6 +479,7 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
 	struct ceph_fs_client *fsc;
 	struct ceph_osd_client *osdc;
 	struct ceph_snap_context *snapc, *oldest;
+	struct timespec64 ts;
 	loff_t page_off = page_offset(page);
 	loff_t snap_size = -1;
 	long writeback_stat;
@@ -540,11 +541,12 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
 	ceph_readpage_to_fscache(inode, page);
 
 	set_page_writeback(page);
+	ts = vfs_time_to_timespec64(inode->i_mtime);
 	err = ceph_osdc_writepages(osdc, ceph_vino(inode),
 				   &ci->i_layout, snapc,
 				   page_off, len,
 				   truncate_seq, truncate_size,
-				   &inode->i_mtime, &page, 1);
+				   &ts, &page, 1);
 	if (err < 0) {
 		dout("writepage setting page/mapping error %d %p\n", err, page);
 		SetPageError(page);
@@ -699,6 +701,7 @@ static int ceph_writepages_start(struct address_space *mapping,
 	int rc = 0;
 	unsigned wsize = 1 << inode->i_blkbits;
 	struct ceph_osd_request *req = NULL;
+	struct timespec64 ts;
 	int do_sync = 0;
 	loff_t snap_size, i_size;
 	u64 truncate_size;
@@ -978,8 +981,9 @@ get_more_pages:
 		osd_req_op_extent_update(req, 0, len);
 
 		vino = ceph_vino(inode);
+		ts = vfs_time_to_timespec64(inode->i_mtime);
 		ceph_osdc_build_request(req, offset, snapc, vino.snap,
-					&inode->i_mtime);
+					&ts);
 
 		rc = ceph_osdc_start_request(&fsc->client->osdc, req, true);
 		BUG_ON(rc);
@@ -1465,6 +1469,7 @@ int ceph_uninline_data(struct file *filp, struct page *locked_page)
 	struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
 	struct ceph_osd_request *req;
 	struct page *page = NULL;
+	struct timespec64 ts;
 	u64 len, inline_version;
 	int err = 0;
 	bool from_pagecache = false;
@@ -1528,7 +1533,8 @@ int ceph_uninline_data(struct file *filp, struct page *locked_page)
 		goto out;
 	}
 
-	ceph_osdc_build_request(req, 0, NULL, CEPH_NOSNAP, &inode->i_mtime);
+	ts = vfs_time_to_timespec64(inode->i_mtime);
+	ceph_osdc_build_request(req, 0, NULL, CEPH_NOSNAP, &ts);
 	err = ceph_osdc_start_request(&fsc->client->osdc, req, false);
 	if (!err)
 		err = ceph_osdc_wait_request(&fsc->client->osdc, req);
@@ -1572,7 +1578,7 @@ int ceph_uninline_data(struct file *filp, struct page *locked_page)
 			goto out_put;
 	}
 
-	ceph_osdc_build_request(req, 0, NULL, CEPH_NOSNAP, &inode->i_mtime);
+	ceph_osdc_build_request(req, 0, NULL, CEPH_NOSNAP, &ts);
 	err = ceph_osdc_start_request(&fsc->client->osdc, req, false);
 	if (!err)
 		err = ceph_osdc_wait_request(&fsc->client->osdc, req);
@@ -1622,6 +1628,7 @@ static int __ceph_pool_perm_get(struct ceph_inode_info *ci, u32 pool)
 	struct ceph_osd_request *rd_req = NULL, *wr_req = NULL;
 	struct rb_node **p, *parent;
 	struct ceph_pool_perm *perm;
+	struct timespec64 ts;
 	struct page **pages;
 	int err = 0, err2 = 0, have = 0;
 
@@ -1701,12 +1708,13 @@ static int __ceph_pool_perm_get(struct ceph_inode_info *ci, u32 pool)
 
 	osd_req_op_raw_data_in_pages(rd_req, 0, pages, PAGE_SIZE,
 				     0, false, true);
+	ts = vfs_time_to_timespec64(ci->vfs_inode.i_mtime);
 	ceph_osdc_build_request(rd_req, 0, NULL, CEPH_NOSNAP,
-				&ci->vfs_inode.i_mtime);
+				&ts);
 	err = ceph_osdc_start_request(&fsc->client->osdc, rd_req, false);
 
 	ceph_osdc_build_request(wr_req, 0, NULL, CEPH_NOSNAP,
-				&ci->vfs_inode.i_mtime);
+				&ts);
 	err2 = ceph_osdc_start_request(&fsc->client->osdc, wr_req, false);
 
 	if (!err)
diff --git a/fs/ceph/cache.c b/fs/ceph/cache.c
index a351480..a773543 100644
--- a/fs/ceph/cache.c
+++ b/fs/ceph/cache.c
@@ -25,7 +25,7 @@
 #include "cache.h"
 
 struct ceph_aux_inode {
-	struct timespec	mtime;
+	struct timespec64	mtime;
 	loff_t          size;
 };
 
@@ -105,7 +105,7 @@ static uint16_t ceph_fscache_inode_get_aux(const void *cookie_netfs_data,
 	const struct inode* inode = &ci->vfs_inode;
 
 	memset(&aux, 0, sizeof(aux));
-	aux.mtime = inode->i_mtime;
+	aux.mtime = vfs_time_to_timespec64(inode->i_mtime);
 	aux.size = i_size_read(inode);
 
 	memcpy(buffer, &aux, sizeof(aux));
@@ -131,7 +131,7 @@ static enum fscache_checkaux ceph_fscache_inode_check_aux(
 		return FSCACHE_CHECKAUX_OBSOLETE;
 
 	memset(&aux, 0, sizeof(aux));
-	aux.mtime = inode->i_mtime;
+	aux.mtime = vfs_time_to_timespec64(inode->i_mtime);
 	aux.size = i_size_read(inode);
 
 	if (memcmp(data, &aux, sizeof(aux)) != 0)
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index cdbf8cf..ab186a1 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -990,7 +990,7 @@ static int send_cap_msg(struct ceph_mds_session *session,
 			int caps, int wanted, int dirty,
 			u32 seq, u64 flush_tid, u64 oldest_flush_tid,
 			u32 issue_seq, u32 mseq, u64 size, u64 max_size,
-			struct timespec *mtime, struct timespec *atime,
+			struct timespec64 *mtime, struct timespec64 *atime,
 			u64 time_warp_seq,
 			kuid_t uid, kgid_t gid, umode_t mode,
 			u64 xattr_version,
@@ -1116,7 +1116,7 @@ static int __send_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap,
 	int held, revoking, dropping, keep;
 	u64 seq, issue_seq, mseq, time_warp_seq, follows;
 	u64 size, max_size;
-	struct timespec mtime, atime;
+	struct timespec64 mtime, atime;
 	int wake = 0;
 	umode_t mode;
 	kuid_t uid;
@@ -1178,8 +1178,8 @@ static int __send_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap,
 	ci->i_reported_size = size;
 	max_size = ci->i_wanted_max_size;
 	ci->i_requested_max_size = max_size;
-	mtime = inode->i_mtime;
-	atime = inode->i_atime;
+	mtime = vfs_time_to_timespec64(inode->i_mtime);
+	atime = vfs_time_to_timespec64(inode->i_atime);
 	time_warp_seq = ci->i_time_warp_seq;
 	uid = inode->i_uid;
 	gid = inode->i_gid;
@@ -2764,7 +2764,7 @@ static void handle_cap_grant(struct ceph_mds_client *mdsc,
 	int used, wanted, dirty;
 	u64 size = le64_to_cpu(grant->size);
 	u64 max_size = le64_to_cpu(grant->max_size);
-	struct timespec mtime, atime, ctime;
+	struct timespec64 mtime, atime, ctime;
 	int check_caps = 0;
 	bool wake = false;
 	bool writeback = false;
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index fd11fb2..83e6602 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -1210,7 +1210,7 @@ static ssize_t ceph_read_dir(struct file *file, char __user *buf, size_t size,
 				" rfiles:   %20lld\n"
 				" rsubdirs: %20lld\n"
 				"rbytes:    %20lld\n"
-				"rctime:    %10ld.%09ld\n",
+				"rctime:    %10lld.%09ld\n",
 				ci->i_files + ci->i_subdirs,
 				ci->i_files,
 				ci->i_subdirs,
@@ -1218,7 +1218,7 @@ static ssize_t ceph_read_dir(struct file *file, char __user *buf, size_t size,
 				ci->i_rfiles,
 				ci->i_rsubdirs,
 				ci->i_rbytes,
-				(long)ci->i_rctime.tv_sec,
+				(long long)ci->i_rctime.tv_sec,
 				(long)ci->i_rctime.tv_nsec);
 	}
 
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 9b338ff..ec77278 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -555,7 +555,7 @@ struct ceph_aio_request {
 	struct list_head osd_reqs;
 	unsigned num_reqs;
 	atomic_t pending_reqs;
-	struct timespec mtime;
+	struct timespec64 mtime;
 	struct ceph_cap_flush *prealloc_cf;
 };
 
@@ -783,11 +783,13 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter *iter,
 	int num_pages = 0;
 	int flags;
 	int ret;
-	struct timespec mtime = current_fs_time(inode->i_sb);
+	struct timespec64 mtime;
 	size_t count = iov_iter_count(iter);
 	loff_t pos = iocb->ki_pos;
 	bool write = iov_iter_rw(iter) == WRITE;
 
+	mtime = vfs_time_to_timespec64(current_fs_time(inode->i_sb));
+
 	if (write && ceph_snap(file_inode(file)) != CEPH_NOSNAP)
 		return -EROFS;
 
@@ -988,9 +990,11 @@ ceph_sync_write(struct kiocb *iocb, struct iov_iter *from, loff_t pos,
 	int flags;
 	int check_caps = 0;
 	int ret;
-	struct timespec mtime = current_fs_time(inode->i_sb);
+	struct timespec64 mtime;
 	size_t count = iov_iter_count(from);
 
+	mtime = vfs_time_to_timespec64(current_fs_time(inode->i_sb));
+
 	if (ceph_snap(file_inode(file)) != CEPH_NOSNAP)
 		return -EROFS;
 
@@ -1497,6 +1501,7 @@ static int ceph_zero_partial_object(struct inode *inode,
 	struct ceph_inode_info *ci = ceph_inode(inode);
 	struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
 	struct ceph_osd_request *req;
+	struct timespec64 ts;
 	int ret = 0;
 	loff_t zero = 0;
 	int op;
@@ -1520,8 +1525,9 @@ static int ceph_zero_partial_object(struct inode *inode,
 		goto out;
 	}
 
+	ts = vfs_time_to_timespec64(inode->i_mtime);
 	ceph_osdc_build_request(req, offset, NULL, ceph_vino(inode).snap,
-				&inode->i_mtime);
+				&ts);
 
 	ret = ceph_osdc_start_request(&fsc->client->osdc, req, false);
 	if (!ret) {
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 63d0198..ecfdbe5 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -590,10 +590,11 @@ int ceph_fill_file_size(struct inode *inode, int issued,
 }
 
 void ceph_fill_file_time(struct inode *inode, int issued,
-			 u64 time_warp_seq, struct timespec *ctime,
-			 struct timespec *mtime, struct timespec *atime)
+			 u64 time_warp_seq, struct timespec64 *ctime,
+			 struct timespec64 *mtime, struct timespec64 *atime)
 {
 	struct ceph_inode_info *ci = ceph_inode(inode);
+	struct vfs_time vfs_ts;
 	int warn = 0;
 
 	if (issued & (CEPH_CAP_FILE_EXCL|
@@ -601,38 +602,42 @@ void ceph_fill_file_time(struct inode *inode, int issued,
 		      CEPH_CAP_FILE_BUFFER|
 		      CEPH_CAP_AUTH_EXCL|
 		      CEPH_CAP_XATTR_EXCL)) {
-		if (timespec_compare(ctime, &inode->i_ctime) > 0) {
-			dout("ctime %ld.%09ld -> %ld.%09ld inc w/ cap\n",
-			     inode->i_ctime.tv_sec, inode->i_ctime.tv_nsec,
+		vfs_ts = timespec64_to_vfs_time(*ctime);
+		if (vfs_time_compare(&vfs_ts, &inode->i_ctime) > 0) {
+			dout("ctime %lld.%09ld -> %lld.%09ld inc w/ cap\n",
+			     (long long)inode->i_ctime.tv_sec,
+			     inode->i_ctime.tv_nsec,
 			     ctime->tv_sec, ctime->tv_nsec);
-			inode->i_ctime = *ctime;
+			inode->i_ctime = vfs_ts;
 		}
 		if (ceph_seq_cmp(time_warp_seq, ci->i_time_warp_seq) > 0) {
 			/* the MDS did a utimes() */
-			dout("mtime %ld.%09ld -> %ld.%09ld "
+			dout("mtime %lld.%09ld -> %lld.%09ld "
 			     "tw %d -> %d\n",
-			     inode->i_mtime.tv_sec, inode->i_mtime.tv_nsec,
+			     (long long)inode->i_mtime.tv_sec,
+			     inode->i_mtime.tv_nsec,
 			     mtime->tv_sec, mtime->tv_nsec,
 			     ci->i_time_warp_seq, (int)time_warp_seq);
-
-			inode->i_mtime = *mtime;
-			inode->i_atime = *atime;
+			inode->i_mtime = timespec64_to_vfs_time(*mtime);
+			inode->i_atime = timespec64_to_vfs_time(*atime);
 			ci->i_time_warp_seq = time_warp_seq;
 		} else if (time_warp_seq == ci->i_time_warp_seq) {
 			/* nobody did utimes(); take the max */
-			if (timespec_compare(mtime, &inode->i_mtime) > 0) {
-				dout("mtime %ld.%09ld -> %ld.%09ld inc\n",
-				     inode->i_mtime.tv_sec,
-				     inode->i_mtime.tv_nsec,
-				     mtime->tv_sec, mtime->tv_nsec);
-				inode->i_mtime = *mtime;
+			vfs_ts = timespec64_to_vfs_time(*mtime);
+			if (vfs_time_compare(&vfs_ts, &inode->i_mtime) > 0) {
+				dout("mtime %lld.%09ld -> %lld.%09ld inc\n",
+					(long long)inode->i_mtime.tv_sec,
+					inode->i_mtime.tv_nsec,
+					mtime->tv_sec, mtime->tv_nsec);
+				inode->i_mtime = vfs_ts;
 			}
-			if (timespec_compare(atime, &inode->i_atime) > 0) {
-				dout("atime %ld.%09ld -> %ld.%09ld inc\n",
-				     inode->i_atime.tv_sec,
+			vfs_ts = timespec64_to_vfs_time(*atime);
+			if (vfs_time_compare(&vfs_ts, &inode->i_atime) > 0) {
+				dout("atime %lld.%09ld -> %lld.%09ld inc\n",
+				     (long long)inode->i_atime.tv_sec,
 				     inode->i_atime.tv_nsec,
 				     atime->tv_sec, atime->tv_nsec);
-				inode->i_atime = *atime;
+				inode->i_atime = vfs_ts;
 			}
 		} else if (issued & CEPH_CAP_FILE_EXCL) {
 			/* we did a utimes(); ignore mds values */
@@ -642,9 +647,9 @@ void ceph_fill_file_time(struct inode *inode, int issued,
 	} else {
 		/* we have no write|excl caps; whatever the MDS says is true */
 		if (ceph_seq_cmp(time_warp_seq, ci->i_time_warp_seq) >= 0) {
-			inode->i_ctime = *ctime;
-			inode->i_mtime = *mtime;
-			inode->i_atime = *atime;
+			inode->i_ctime = timespec64_to_vfs_time(*ctime);
+			inode->i_mtime = timespec64_to_vfs_time(*mtime);
+			inode->i_atime = timespec64_to_vfs_time(*atime);
 			ci->i_time_warp_seq = time_warp_seq;
 		} else {
 			warn = 1;
@@ -670,7 +675,7 @@ static int fill_inode(struct inode *inode, struct page *locked_page,
 	struct ceph_mds_reply_inode *info = iinfo->in;
 	struct ceph_inode_info *ci = ceph_inode(inode);
 	int issued = 0, implemented, new_issued;
-	struct timespec mtime, atime, ctime;
+	struct timespec64 mtime, atime, ctime;
 	struct ceph_buffer *xattr_blob = NULL;
 	struct ceph_cap *new_cap = NULL;
 	int err = 0;
@@ -1776,6 +1781,7 @@ int ceph_setattr(struct dentry *dentry, struct iattr *attr)
 	struct ceph_mds_request *req;
 	struct ceph_mds_client *mdsc = ceph_sb_to_client(dentry->d_sb)->mdsc;
 	struct ceph_cap_flush *prealloc_cf;
+	struct timespec64 iattr_ts;
 	int issued;
 	int release = 0, dirtied = 0;
 	int mask = 0;
@@ -1863,44 +1869,46 @@ int ceph_setattr(struct dentry *dentry, struct iattr *attr)
 	}
 
 	if (ia_valid & ATTR_ATIME) {
-		dout("setattr %p atime %ld.%ld -> %ld.%ld\n", inode,
-		     inode->i_atime.tv_sec, inode->i_atime.tv_nsec,
-		     attr->ia_atime.tv_sec, attr->ia_atime.tv_nsec);
+		dout("setattr %p atime %lld.%ld -> %lld.%ld\n", inode,
+			(long long)inode->i_mtime.tv_sec,
+			inode->i_mtime.tv_nsec,
+		    (long long)attr->ia_mtime.tv_sec, attr->ia_mtime.tv_nsec);
 		if (issued & CEPH_CAP_FILE_EXCL) {
 			ci->i_time_warp_seq++;
 			inode->i_atime = attr->ia_atime;
 			dirtied |= CEPH_CAP_FILE_EXCL;
 		} else if ((issued & CEPH_CAP_FILE_WR) &&
-			   timespec_compare(&inode->i_atime,
+			   vfs_time_compare(&inode->i_atime,
 					    &attr->ia_atime) < 0) {
 			inode->i_atime = attr->ia_atime;
 			dirtied |= CEPH_CAP_FILE_WR;
 		} else if ((issued & CEPH_CAP_FILE_SHARED) == 0 ||
-			   !timespec_equal(&inode->i_atime, &attr->ia_atime)) {
+			   !vfs_time_equal(&inode->i_atime, &attr->ia_atime)) {
+			iattr_ts = vfs_time_to_timespec64(attr->ia_atime);
 			ceph_encode_timespec(&req->r_args.setattr.atime,
-					     &attr->ia_atime);
+					     &iattr_ts);
 			mask |= CEPH_SETATTR_ATIME;
 			release |= CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_RD |
 				CEPH_CAP_FILE_WR;
 		}
 	}
 	if (ia_valid & ATTR_MTIME) {
-		dout("setattr %p mtime %ld.%ld -> %ld.%ld\n", inode,
-		     inode->i_mtime.tv_sec, inode->i_mtime.tv_nsec,
-		     attr->ia_mtime.tv_sec, attr->ia_mtime.tv_nsec);
+		dout("setattr %p mtime %lld.%ld -> %lld.%ld\n", inode,
+		   (long long)inode->i_mtime.tv_sec, inode->i_mtime.tv_nsec,
+		   (long long)attr->ia_mtime.tv_sec, attr->ia_mtime.tv_nsec);
 		if (issued & CEPH_CAP_FILE_EXCL) {
 			ci->i_time_warp_seq++;
 			inode->i_mtime = attr->ia_mtime;
 			dirtied |= CEPH_CAP_FILE_EXCL;
 		} else if ((issued & CEPH_CAP_FILE_WR) &&
-			   timespec_compare(&inode->i_mtime,
+			   vfs_time_compare(&inode->i_mtime,
 					    &attr->ia_mtime) < 0) {
 			inode->i_mtime = attr->ia_mtime;
 			dirtied |= CEPH_CAP_FILE_WR;
 		} else if ((issued & CEPH_CAP_FILE_SHARED) == 0 ||
-			   !timespec_equal(&inode->i_mtime, &attr->ia_mtime)) {
+			   !vfs_time_equal(&inode->i_mtime, &attr->ia_mtime)) {
 			ceph_encode_timespec(&req->r_args.setattr.mtime,
-					     &attr->ia_mtime);
+					     &iattr_ts);
 			mask |= CEPH_SETATTR_MTIME;
 			release |= CEPH_CAP_FILE_SHARED | CEPH_CAP_FILE_RD |
 				CEPH_CAP_FILE_WR;
@@ -1932,9 +1940,12 @@ int ceph_setattr(struct dentry *dentry, struct iattr *attr)
 	if (ia_valid & ATTR_CTIME) {
 		bool only = (ia_valid & (ATTR_SIZE|ATTR_MTIME|ATTR_ATIME|
 					 ATTR_MODE|ATTR_UID|ATTR_GID)) == 0;
-		dout("setattr %p ctime %ld.%ld -> %ld.%ld (%s)\n", inode,
-		     inode->i_ctime.tv_sec, inode->i_ctime.tv_nsec,
-		     attr->ia_ctime.tv_sec, attr->ia_ctime.tv_nsec,
+		dout("setattr %p ctime %lld.%ld -> %lld.%ld (%s)\n", inode,
+				 (long long)inode->i_ctime.tv_sec,
+				 inode->i_ctime.tv_nsec,
+				 (long long)attr->ia_ctime.tv_sec,
+				 attr->ia_ctime.tv_nsec,
+
 		     only ? "ctime only" : "ignored");
 		inode->i_ctime = attr->ia_ctime;
 		if (only) {
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 348b22e..bdf77065 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -1721,7 +1721,7 @@ ceph_mdsc_create_request(struct ceph_mds_client *mdsc, int op, int mode)
 	init_completion(&req->r_safe_completion);
 	INIT_LIST_HEAD(&req->r_unsafe_item);
 
-	ktime_get_real_ts(&req->r_stamp);
+	getnstimeofday64(&req->r_stamp);
 
 	req->r_op = op;
 	req->r_direct_mode = mode;
@@ -2791,6 +2791,7 @@ static int encode_caps_cb(struct inode *inode, struct ceph_cap *cap,
 	struct ceph_inode_info *ci;
 	struct ceph_reconnect_state *recon_state = arg;
 	struct ceph_pagelist *pagelist = recon_state->pagelist;
+	struct timespec64 ts;
 	char *path;
 	int pathlen, err;
 	u64 pathbase;
@@ -2839,8 +2840,10 @@ static int encode_caps_cb(struct inode *inode, struct ceph_cap *cap,
 		rec.v1.wanted = cpu_to_le32(__ceph_caps_wanted(ci));
 		rec.v1.issued = cpu_to_le32(cap->issued);
 		rec.v1.size = cpu_to_le64(inode->i_size);
-		ceph_encode_timespec(&rec.v1.mtime, &inode->i_mtime);
-		ceph_encode_timespec(&rec.v1.atime, &inode->i_atime);
+		ts = vfs_time_to_timespec64(inode->i_mtime);
+		ceph_encode_timespec(&rec.v1.mtime, &ts);
+		ts = vfs_time_to_timespec64(inode->i_atime);
+		ceph_encode_timespec(&rec.v1.atime, &ts);
 		rec.v1.snaprealm = cpu_to_le64(ci->i_snap_realm->ino);
 		rec.v1.pathbase = cpu_to_le64(pathbase);
 		reclen = sizeof(rec.v1);
diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h
index ccf11ef..6fb8568 100644
--- a/fs/ceph/mds_client.h
+++ b/fs/ceph/mds_client.h
@@ -202,7 +202,7 @@ struct ceph_mds_request {
 	int r_fmode;        /* file mode, if expecting cap */
 	kuid_t r_uid;
 	kgid_t r_gid;
-	struct timespec r_stamp;
+	struct timespec64 r_stamp;
 
 	/* for choosing which mds to send this request to */
 	int r_direct_mode;
diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c
index 4aa7122..312cdc2 100644
--- a/fs/ceph/snap.c
+++ b/fs/ceph/snap.c
@@ -593,9 +593,9 @@ int __ceph_finish_cap_snap(struct ceph_inode_info *ci,
 
 	BUG_ON(capsnap->writing);
 	capsnap->size = inode->i_size;
-	capsnap->mtime = inode->i_mtime;
-	capsnap->atime = inode->i_atime;
-	capsnap->ctime = inode->i_ctime;
+	capsnap->mtime = vfs_time_to_timespec64(inode->i_mtime);
+	capsnap->atime = vfs_time_to_timespec64(inode->i_atime);
+	capsnap->ctime = vfs_time_to_timespec64(inode->i_ctime);
 	capsnap->time_warp_seq = ci->i_time_warp_seq;
 	if (capsnap->dirty_pages) {
 		dout("finish_cap_snap %p cap_snap %p snapc %p %llu %s s=%llu "
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 75b7d12..19c31ba 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -169,7 +169,7 @@ struct ceph_cap_snap {
 	u64 xattr_version;
 
 	u64 size;
-	struct timespec mtime, atime, ctime;
+	struct timespec64 mtime, atime, ctime;
 	u64 time_warp_seq;
 	int writing;   /* a sync write is still in progress */
 	int dirty_pages;     /* dirty pages awaiting writeback */
@@ -290,7 +290,7 @@ struct ceph_inode_info {
 	char *i_symlink;
 
 	/* for dirs */
-	struct timespec i_rctime;
+	struct timespec64 i_rctime;
 	u64 i_rbytes, i_rfiles, i_rsubdirs;
 	u64 i_files, i_subdirs;
 
@@ -764,8 +764,9 @@ extern struct inode *ceph_get_snapdir(struct inode *parent);
 extern int ceph_fill_file_size(struct inode *inode, int issued,
 			       u32 truncate_seq, u64 truncate_size, u64 size);
 extern void ceph_fill_file_time(struct inode *inode, int issued,
-				u64 time_warp_seq, struct timespec *ctime,
-				struct timespec *mtime, struct timespec *atime);
+				u64 time_warp_seq, struct timespec64 *ctime,
+				struct timespec64 *mtime,
+				struct timespec64 *atime);
 extern int ceph_fill_trace(struct super_block *sb,
 			   struct ceph_mds_request *req,
 			   struct ceph_mds_session *session);
diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c
index 1e1c00a..db5328d 100644
--- a/fs/ceph/xattr.c
+++ b/fs/ceph/xattr.c
@@ -198,7 +198,7 @@ static size_t ceph_vxattrcb_dir_rbytes(struct ceph_inode_info *ci, char *val,
 static size_t ceph_vxattrcb_dir_rctime(struct ceph_inode_info *ci, char *val,
 				       size_t size)
 {
-	return snprintf(val, size, "%ld.09%ld", (long)ci->i_rctime.tv_sec,
+	return snprintf(val, size, "%lld.09%ld", (long long)ci->i_rctime.tv_sec,
 			(long)ci->i_rctime.tv_nsec);
 }
 
diff --git a/include/linux/ceph/decode.h b/include/linux/ceph/decode.h
index 633a130..b68edf5 100644
--- a/include/linux/ceph/decode.h
+++ b/include/linux/ceph/decode.h
@@ -4,6 +4,7 @@
 #include <linux/err.h>
 #include <linux/bug.h>
 #include <linux/time.h>
+#include <linux/fs.h>
 #include <asm/unaligned.h>
 
 #include <linux/ceph/types.h>
@@ -132,16 +133,16 @@ bad:
 }
 
 /*
- * struct ceph_timespec <-> struct timespec
+ * struct ceph_timespec <-> struct timespec64
  */
-static inline void ceph_decode_timespec(struct timespec *ts,
+static inline void ceph_decode_timespec(struct timespec64 *ts,
 					const struct ceph_timespec *tv)
 {
-	ts->tv_sec = (__kernel_time_t)le32_to_cpu(tv->tv_sec);
+	ts->tv_sec = (s64)le32_to_cpu(tv->tv_sec);
 	ts->tv_nsec = (long)le32_to_cpu(tv->tv_nsec);
 }
 static inline void ceph_encode_timespec(struct ceph_timespec *tv,
-					const struct timespec *ts)
+					const struct timespec64 *ts)
 {
 	tv->tv_sec = cpu_to_le32((u32)ts->tv_sec);
 	tv->tv_nsec = cpu_to_le32((u32)ts->tv_nsec);
diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h
index 7506b48..f4fdd97 100644
--- a/include/linux/ceph/osd_client.h
+++ b/include/linux/ceph/osd_client.h
@@ -322,7 +322,7 @@ extern struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *
 extern void ceph_osdc_build_request(struct ceph_osd_request *req, u64 off,
 				    struct ceph_snap_context *snapc,
 				    u64 snap_id,
-				    struct timespec *mtime);
+				    struct timespec64 *mtime);
 
 extern struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *,
 				      struct ceph_file_layout *layout,
@@ -364,7 +364,7 @@ extern int ceph_osdc_writepages(struct ceph_osd_client *osdc,
 				struct ceph_snap_context *sc,
 				u64 off, u64 len,
 				u32 truncate_seq, u64 truncate_size,
-				struct timespec *mtime,
+				struct timespec64 *mtime,
 				struct page **pages, int nr_pages);
 
 /* watch/notify events */
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index f8f2359..af1692a 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -2401,7 +2401,7 @@ bad:
  */
 void ceph_osdc_build_request(struct ceph_osd_request *req, u64 off,
 				struct ceph_snap_context *snapc, u64 snap_id,
-				struct timespec *mtime)
+				struct timespec64 *mtime)
 {
 	struct ceph_msg *msg = req->r_request;
 	void *p;
@@ -2735,7 +2735,7 @@ int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino,
 			 struct ceph_snap_context *snapc,
 			 u64 off, u64 len,
 			 u32 truncate_seq, u64 truncate_size,
-			 struct timespec *mtime,
+			 struct timespec64 *mtime,
 			 struct page **pages, int num_pages)
 {
 	struct ceph_osd_request *req;
