Merge tag 'ceph-for-6.6-rc1' of https://github.com/ceph/ceph-client
Merge commit. Changes below are compared with the first parent: 744a7594.
Changes
28 files changed · +4484 −528
Only the first 600 diff lines are shown. Download the complete patch.
Documentation/filesystems/ceph.rst
View filediff --git a/Documentation/filesystems/ceph.rst b/Documentation/filesystems/ceph.rst
index 76ce938..085f309 100644
--- a/Documentation/filesystems/ceph.rst
+++ b/Documentation/filesystems/ceph.rst
@@ -57,6 +57,16 @@ a snapshot on any subdirectory (and its nested contents) in the
system. Snapshot creation and deletion are as simple as 'mkdir
.snap/foo' and 'rmdir .snap/foo'.
+Snapshot names have two limitations:
+
+* They can not start with an underscore ('_'), as these names are reserved
+ for internal usage by the MDS.
+* They can not exceed 240 characters in size. This is because the MDS makes
+ use of long snapshot names internally, which follow the format:
+ `_<SNAPSHOT-NAME>_<INODE-NUMBER>`. Since filenames in general can't have
+ more than 255 characters, and `<node-id>` takes 13 characters, the long
+ snapshot names can take as much as 255 - 1 - 1 - 13 = 240.
+
Ceph also provides some recursive accounting on directories for nested
files and bytes. That is, a 'getfattr -d foo' on any directory in the
system will reveal the total number of nested regular files and
drivers/block/rbd.c
View filediff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 2328cc0..3de11f0 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -7199,7 +7199,6 @@ static void rbd_dev_remove_parent(struct rbd_device *rbd_dev)
static ssize_t do_rbd_remove(const char *buf, size_t count)
{
struct rbd_device *rbd_dev = NULL;
- struct list_head *tmp;
int dev_id;
char opt_buf[6];
bool force = false;
@@ -7226,8 +7225,7 @@ static ssize_t do_rbd_remove(const char *buf, size_t count)
ret = -ENOENT;
spin_lock(&rbd_dev_list_lock);
- list_for_each(tmp, &rbd_dev_list) {
- rbd_dev = list_entry(tmp, struct rbd_device, node);
+ list_for_each_entry(rbd_dev, &rbd_dev_list, node) {
if (rbd_dev->dev_id == dev_id) {
ret = 0;
break;
fs/ceph/Makefile
View filediff --git a/fs/ceph/Makefile b/fs/ceph/Makefile
index 50c635d..1f77ca0 100644
--- a/fs/ceph/Makefile
+++ b/fs/ceph/Makefile
@@ -12,3 +12,4 @@ ceph-y := super.o inode.o dir.o file.o locks.o addr.o ioctl.o \
ceph-$(CONFIG_CEPH_FSCACHE) += cache.o
ceph-$(CONFIG_CEPH_FS_POSIX_ACL) += acl.o
+ceph-$(CONFIG_FS_ENCRYPTION) += crypto.o
fs/ceph/acl.c
View filediff --git a/fs/ceph/acl.c b/fs/ceph/acl.c
index c91b293..c53a1d2 100644
--- a/fs/ceph/acl.c
+++ b/fs/ceph/acl.c
@@ -140,7 +140,7 @@ int ceph_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,
newattrs.ia_ctime = current_time(inode);
newattrs.ia_mode = new_mode;
newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
- ret = __ceph_setattr(inode, &newattrs);
+ ret = __ceph_setattr(inode, &newattrs, NULL);
if (ret)
goto out_free;
}
@@ -151,7 +151,7 @@ int ceph_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,
newattrs.ia_ctime = old_ctime;
newattrs.ia_mode = old_mode;
newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
- __ceph_setattr(inode, &newattrs);
+ __ceph_setattr(inode, &newattrs, NULL);
}
goto out_free;
}
fs/ceph/addr.c
View filediff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 59cbfb8..f486307 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -18,6 +18,7 @@
#include "mds_client.h"
#include "cache.h"
#include "metric.h"
+#include "crypto.h"
#include <linux/ceph/osd_client.h>
#include <linux/ceph/striper.h>
@@ -242,11 +243,13 @@ static bool ceph_netfs_clamp_length(struct netfs_io_subrequest *subreq)
static void finish_netfs_read(struct ceph_osd_request *req)
{
- struct ceph_fs_client *fsc = ceph_inode_to_client(req->r_inode);
+ struct inode *inode = req->r_inode;
+ struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
struct ceph_osd_data *osd_data = osd_req_op_extent_osd_data(req, 0);
struct netfs_io_subrequest *subreq = req->r_priv;
- int num_pages;
+ struct ceph_osd_req_op *op = &req->r_ops[0];
int err = req->r_result;
+ bool sparse = (op->op == CEPH_OSD_OP_SPARSE_READ);
ceph_update_read_metrics(&fsc->mdsc->metric, req->r_start_latency,
req->r_end_latency, osd_data->length, err);
@@ -260,14 +263,29 @@ static void finish_netfs_read(struct ceph_osd_request *req)
else if (err == -EBLOCKLISTED)
fsc->blocklisted = true;
- if (err >= 0 && err < subreq->len)
- __set_bit(NETFS_SREQ_CLEAR_TAIL, &subreq->flags);
+ if (err >= 0) {
+ if (sparse && err > 0)
+ err = ceph_sparse_ext_map_end(op);
+ if (err < subreq->len)
+ __set_bit(NETFS_SREQ_CLEAR_TAIL, &subreq->flags);
+ if (IS_ENCRYPTED(inode) && err > 0) {
+ err = ceph_fscrypt_decrypt_extents(inode,
+ osd_data->pages, subreq->start,
+ op->extent.sparse_ext,
+ op->extent.sparse_ext_cnt);
+ if (err > subreq->len)
+ err = subreq->len;
+ }
+ }
+ if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) {
+ ceph_put_page_vector(osd_data->pages,
+ calc_pages_for(osd_data->alignment,
+ osd_data->length), false);
+ }
netfs_subreq_terminated(subreq, err, false);
-
- num_pages = calc_pages_for(osd_data->alignment, osd_data->length);
- ceph_put_page_vector(osd_data->pages, num_pages, false);
iput(req->r_inode);
+ ceph_dec_osd_stopping_blocker(fsc->mdsc);
}
static bool ceph_netfs_issue_op_inline(struct netfs_io_subrequest *subreq)
@@ -334,10 +352,10 @@ static void ceph_netfs_issue_read(struct netfs_io_subrequest *subreq)
struct ceph_osd_request *req = NULL;
struct ceph_vino vino = ceph_vino(inode);
struct iov_iter iter;
- struct page **pages;
- size_t page_off;
int err = 0;
u64 len = subreq->len;
+ bool sparse = IS_ENCRYPTED(inode) || ceph_test_mount_opt(fsc, SPARSEREAD);
+ u64 off = subreq->start;
if (ceph_inode_is_shutdown(inode)) {
err = -EIO;
@@ -347,8 +365,10 @@ static void ceph_netfs_issue_read(struct netfs_io_subrequest *subreq)
if (ceph_has_inline_data(ci) && ceph_netfs_issue_op_inline(subreq))
return;
- req = ceph_osdc_new_request(&fsc->client->osdc, &ci->i_layout, vino, subreq->start, &len,
- 0, 1, CEPH_OSD_OP_READ,
+ ceph_fscrypt_adjust_off_and_len(inode, &off, &len);
+
+ req = ceph_osdc_new_request(&fsc->client->osdc, &ci->i_layout, vino,
+ off, &len, 0, 1, sparse ? CEPH_OSD_OP_SPARSE_READ : CEPH_OSD_OP_READ,
CEPH_OSD_FLAG_READ | fsc->client->osdc.client->options->read_from_replica,
NULL, ci->i_truncate_seq, ci->i_truncate_size, false);
if (IS_ERR(req)) {
@@ -357,20 +377,48 @@ static void ceph_netfs_issue_read(struct netfs_io_subrequest *subreq)
goto out;
}
+ if (sparse) {
+ err = ceph_alloc_sparse_ext_map(&req->r_ops[0]);
+ if (err)
+ goto out;
+ }
+
dout("%s: pos=%llu orig_len=%zu len=%llu\n", __func__, subreq->start, subreq->len, len);
+
iov_iter_xarray(&iter, ITER_DEST, &rreq->mapping->i_pages, subreq->start, len);
- err = iov_iter_get_pages_alloc2(&iter, &pages, len, &page_off);
- if (err < 0) {
- dout("%s: iov_ter_get_pages_alloc returned %d\n", __func__, err);
- goto out;
- }
- /* should always give us a page-aligned read */
- WARN_ON_ONCE(page_off);
- len = err;
- err = 0;
+ /*
+ * FIXME: For now, use CEPH_OSD_DATA_TYPE_PAGES instead of _ITER for
+ * encrypted inodes. We'd need infrastructure that handles an iov_iter
+ * instead of page arrays, and we don't have that as of yet. Once the
+ * dust settles on the write helpers and encrypt/decrypt routines for
+ * netfs, we should be able to rework this.
+ */
+ if (IS_ENCRYPTED(inode)) {
+ struct page **pages;
+ size_t page_off;
+
+ err = iov_iter_get_pages_alloc2(&iter, &pages, len, &page_off);
+ if (err < 0) {
+ dout("%s: iov_ter_get_pages_alloc returned %d\n",
+ __func__, err);
+ goto out;
+ }
+
+ /* should always give us a page-aligned read */
+ WARN_ON_ONCE(page_off);
+ len = err;
+ err = 0;
- osd_req_op_extent_osd_data_pages(req, 0, pages, len, 0, false, false);
+ osd_req_op_extent_osd_data_pages(req, 0, pages, len, 0, false,
+ false);
+ } else {
+ osd_req_op_extent_osd_iter(req, 0, &iter);
+ }
+ if (!ceph_inc_osd_stopping_blocker(fsc->mdsc)) {
+ err = -EIO;
+ goto out;
+ }
req->r_callback = finish_netfs_read;
req->r_priv = subreq;
req->r_inode = inode;
@@ -571,10 +619,12 @@ static u64 get_writepages_data_length(struct inode *inode,
struct page *page, u64 start)
{
struct ceph_inode_info *ci = ceph_inode(inode);
- struct ceph_snap_context *snapc = page_snap_context(page);
+ struct ceph_snap_context *snapc;
struct ceph_cap_snap *capsnap = NULL;
u64 end = i_size_read(inode);
+ u64 ret;
+ snapc = page_snap_context(ceph_fscrypt_pagecache_page(page));
if (snapc != ci->i_head_snapc) {
bool found = false;
spin_lock(&ci->i_ceph_lock);
@@ -589,9 +639,12 @@ static u64 get_writepages_data_length(struct inode *inode,
spin_unlock(&ci->i_ceph_lock);
WARN_ON(!found);
}
- if (end > page_offset(page) + thp_size(page))
- end = page_offset(page) + thp_size(page);
- return end > start ? end - start : 0;
+ if (end > ceph_fscrypt_page_offset(page) + thp_size(page))
+ end = ceph_fscrypt_page_offset(page) + thp_size(page);
+ ret = end > start ? end - start : 0;
+ if (ret && fscrypt_is_bounce_page(page))
+ ret = round_up(ret, CEPH_FSCRYPT_BLOCK_SIZE);
+ return ret;
}
/*
@@ -610,10 +663,12 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
loff_t page_off = page_offset(page);
int err;
loff_t len = thp_size(page);
+ loff_t wlen;
struct ceph_writeback_ctl ceph_wbc;
struct ceph_osd_client *osdc = &fsc->client->osdc;
struct ceph_osd_request *req;
bool caching = ceph_is_cache_enabled(inode);
+ struct page *bounce_page = NULL;
dout("writepage %p idx %lu\n", page, page->index);
@@ -649,31 +704,51 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
if (ceph_wbc.i_size < page_off + len)
len = ceph_wbc.i_size - page_off;
+ wlen = IS_ENCRYPTED(inode) ? round_up(len, CEPH_FSCRYPT_BLOCK_SIZE) : len;
dout("writepage %p page %p index %lu on %llu~%llu snapc %p seq %lld\n",
- inode, page, page->index, page_off, len, snapc, snapc->seq);
+ inode, page, page->index, page_off, wlen, snapc, snapc->seq);
if (atomic_long_inc_return(&fsc->writeback_count) >
CONGESTION_ON_THRESH(fsc->mount_options->congestion_kb))
fsc->write_congested = true;
- req = ceph_osdc_new_request(osdc, &ci->i_layout, ceph_vino(inode), page_off, &len, 0, 1,
- CEPH_OSD_OP_WRITE, CEPH_OSD_FLAG_WRITE, snapc,
- ceph_wbc.truncate_seq, ceph_wbc.truncate_size,
- true);
+ req = ceph_osdc_new_request(osdc, &ci->i_layout, ceph_vino(inode),
+ page_off, &wlen, 0, 1, CEPH_OSD_OP_WRITE,
+ CEPH_OSD_FLAG_WRITE, snapc,
+ ceph_wbc.truncate_seq,
+ ceph_wbc.truncate_size, true);
if (IS_ERR(req)) {
redirty_page_for_writepage(wbc, page);
return PTR_ERR(req);
}
+ if (wlen < len)
+ len = wlen;
+
set_page_writeback(page);
if (caching)
ceph_set_page_fscache(page);
ceph_fscache_write_to_cache(inode, page_off, len, caching);
+ if (IS_ENCRYPTED(inode)) {
+ bounce_page = fscrypt_encrypt_pagecache_blocks(page,
+ CEPH_FSCRYPT_BLOCK_SIZE, 0,
+ GFP_NOFS);
+ if (IS_ERR(bounce_page)) {
+ redirty_page_for_writepage(wbc, page);
+ end_page_writeback(page);
+ ceph_osdc_put_request(req);
+ return PTR_ERR(bounce_page);
+ }
+ }
+
/* it may be a short write due to an object boundary */
WARN_ON_ONCE(len > thp_size(page));
- osd_req_op_extent_osd_data_pages(req, 0, &page, len, 0, false, false);
- dout("writepage %llu~%llu (%llu bytes)\n", page_off, len, len);
+ osd_req_op_extent_osd_data_pages(req, 0,
+ bounce_page ? &bounce_page : &page, wlen, 0,
+ false, false);
+ dout("writepage %llu~%llu (%llu bytes, %sencrypted)\n",
+ page_off, len, wlen, IS_ENCRYPTED(inode) ? "" : "not ");
req->r_mtime = inode->i_mtime;
ceph_osdc_start_request(osdc, req);
@@ -681,7 +756,7 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
ceph_update_write_metrics(&fsc->mdsc->metric, req->r_start_latency,
req->r_end_latency, len, err);
-
+ fscrypt_free_bounce_page(bounce_page);
ceph_osdc_put_request(req);
if (err == 0)
err = len;
@@ -800,6 +875,11 @@ static void writepages_finish(struct ceph_osd_request *req)
total_pages += num_pages;
for (j = 0; j < num_pages; j++) {
page = osd_data->pages[j];
+ if (fscrypt_is_bounce_page(page)) {
+ page = fscrypt_pagecache_page(page);
+ fscrypt_free_bounce_page(osd_data->pages[j]);
+ osd_data->pages[j] = page;
+ }
BUG_ON(!page);
WARN_ON(!PageUptodate(page));
@@ -835,6 +915,7 @@ static void writepages_finish(struct ceph_osd_request *req)
else
kfree(osd_data->pages);
ceph_osdc_put_request(req);
+ ceph_dec_osd_stopping_blocker(fsc->mdsc);
}
/*
@@ -1070,9 +1151,28 @@ get_more_pages:
fsc->mount_options->congestion_kb))
fsc->write_congested = true;
- pages[locked_pages++] = page;
- fbatch.folios[i] = NULL;
+ if (IS_ENCRYPTED(inode)) {
+ pages[locked_pages] =
+ fscrypt_encrypt_pagecache_blocks(page,
+ PAGE_SIZE, 0,
+ locked_pages ? GFP_NOWAIT : GFP_NOFS);
+ if (IS_ERR(pages[locked_pages])) {
+ if (PTR_ERR(pages[locked_pages]) == -EINVAL)
+ pr_err("%s: inode->i_blkbits=%hhu\n",
+ __func__, inode->i_blkbits);
+ /* better not fail on first page! */
+ BUG_ON(locked_pages == 0);
+ pages[locked_pages] = NULL;
+ redirty_page_for_writepage(wbc, page);
+ unlock_page(page);
+ break;
+ }
+ ++locked_pages;
+ } else {
+ pages[locked_pages++] = page;
+ }
+ fbatch.folios[i] = NULL;
len += thp_size(page);
}
@@ -1100,7 +1200,7 @@ get_more_pages:
}
new_request:
- offset = page_offset(pages[0]);
+ offset = ceph_fscrypt_page_offset(pages[0]);
len = wsize;
req = ceph_osdc_new_request(&fsc->client->osdc,
@@ -1121,9 +1221,13 @@ new_request:
ceph_wbc.truncate_size, true);
BUG_ON(IS_ERR(req));
}
- BUG_ON(len < page_offset(pages[locked_pages - 1]) +
- thp_size(page) - offset);
+ BUG_ON(len < ceph_fscrypt_page_offset(pages[locked_pages - 1]) +
+ thp_size(pages[locked_pages - 1]) - offset);
+ if (!ceph_inc_osd_stopping_blocker(fsc->mdsc)) {
+ rc = -EIO;
+ goto release_folios;
+ }
req->r_callback = writepages_finish;
req->r_inode = inode;
@@ -1132,7 +1236,9 @@ new_request:
data_pages = pages;
op_idx = 0;
for (i = 0; i < locked_pages; i++) {
- u64 cur_offset = page_offset(pages[i]);
+ struct page *page = ceph_fscrypt_pagecache_page(pages[i]);
+
+ u64 cur_offset = page_offset(page);
/*
* Discontinuity in page range? Ceph can handle that by just passing
* multiple extents in the write op.
@@ -1161,9 +1267,9 @@ new_request:
op_idx++;
}
- set_page_writeback(pages[i]);
+ set_page_writeback(page);
if (caching)
- ceph_set_page_fscache(pages[i]);
+ ceph_set_page_fscache(page);
len += thp_size(page);
}
ceph_fscache_write_to_cache(inode, offset, len, caching);
@@ -1179,8 +1285,16 @@ new_request:
offset);
len = max(len, min_len);
}
+ if (IS_ENCRYPTED(inode))
+ len = round_up(len, CEPH_FSCRYPT_BLOCK_SIZE);
+
dout("writepages got pages at %llu~%llu\n", offset, len);
+ if (IS_ENCRYPTED(inode) &&
+ ((offset | len) & ~CEPH_FSCRYPT_BLOCK_MASK))
+ pr_warn("%s: bad encrypted write offset=%lld len=%llu\n",
+ __func__, offset, len);
+
osd_req_op_extent_osd_data_pages(req, op_idx, data_pages, len,
0, from_pool, false);
osd_req_op_extent_update(req, op_idx, len);
fs/ceph/caps.c
View filediff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 09cd6d3..14215ec 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -14,6 +14,7 @@
#include "super.h"
#include "mds_client.h"
#include "cache.h"
+#include "crypto.h"
#include <linux/ceph/decode.h>
#include <linux/ceph/messenger.h>
@@ -1216,15 +1217,11 @@ struct cap_msg_args {
umode_t mode;
bool inline_data;
bool wake;
+ bool encrypted;
+ u32 fscrypt_auth_len;
+ u8 fscrypt_auth[sizeof(struct ceph_fscrypt_auth)]; // for context
};
-/*
- * cap struct size + flock buffer size + inline version + inline data size +
- * osd_epoch_barrier + oldest_flush_tid
- */
-#define CAP_MSG_SIZE (sizeof(struct ceph_mds_caps) + \
- 4 + 8 + 4 + 4 + 8 + 4 + 4 + 4 + 8 + 8 + 4)
-
/* Marshal up the cap msg to the MDS */
static void encode_cap_msg(struct ceph_msg *msg, struct cap_msg_args *arg)
{
@@ -1240,7 +1237,7 @@ static void encode_cap_msg(struct ceph_msg *msg, struct cap_msg_args *arg)
arg->size, arg->max_size, arg->xattr_version,
arg->xattr_buf ? (int)arg->xattr_buf->vec.iov_len : 0);
- msg->hdr.version = cpu_to_le16(10);
+ msg->hdr.version = cpu_to_le16(12);
msg->hdr.tid = cpu_to_le64(arg->flush_tid);
fc = msg->front.iov_base;
@@ -1257,7 +1254,13 @@ static void encode_cap_msg(struct ceph_msg *msg, struct cap_msg_args *arg)
fc->ino = cpu_to_le64(arg->ino);
fc->snap_follows = cpu_to_le64(arg->follows);
- fc->size = cpu_to_le64(arg->size);
+#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
+ if (arg->encrypted)
+ fc->size = cpu_to_le64(round_up(arg->size,
+ CEPH_FSCRYPT_BLOCK_SIZE));
+ else
+#endif
+ fc->size = cpu_to_le64(arg->size);
fc->max_size = cpu_to_le64(arg->max_size);
ceph_encode_timespec64(&fc->mtime, &arg->mtime);
ceph_encode_timespec64(&fc->atime, &arg->atime);
@@ -1311,6 +1314,27 @@ static void encode_cap_msg(struct ceph_msg *msg, struct cap_msg_args *arg)
/* Advisory flags (version 10) */
ceph_encode_32(&p, arg->flags);
+
+ /* dirstats (version 11) - these are r/o on the client */
+ ceph_encode_64(&p, 0);
+ ceph_encode_64(&p, 0);
+
+#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
+ /*
+ * fscrypt_auth and fscrypt_file (version 12)
+ *
+ * fscrypt_auth holds the crypto context (if any). fscrypt_file
+ * tracks the real i_size as an __le64 field (and we use a rounded-up
+ * i_size in the traditional size field).
+ */
+ ceph_encode_32(&p, arg->fscrypt_auth_len);
+ ceph_encode_copy(&p, arg->fscrypt_auth, arg->fscrypt_auth_len);
+ ceph_encode_32(&p, sizeof(__le64));
+ ceph_encode_64(&p, arg->size);
+#else /* CONFIG_FS_ENCRYPTION */
+ ceph_encode_32(&p, 0);
+ ceph_encode_32(&p, 0);
+#endif /* CONFIG_FS_ENCRYPTION */
}
/*
@@ -1378,7 +1402,6 @@ static void __prep_cap(struct cap_msg_args *arg, struct ceph_cap *cap,
arg->follows = flushing ? ci->i_head_snapc->seq : 0;
arg->flush_tid = flush_tid;
arg->oldest_flush_tid = oldest_flush_tid;
-
arg->size = i_size_read(inode);
ci->i_reported_size = arg->size;
arg->max_size = ci->i_wanted_max_size;
@@ -1432,8 +1455,39 @@ static void __prep_cap(struct cap_msg_args *arg, struct ceph_cap *cap,
}
}
arg->flags = flags;
+ arg->encrypted = IS_ENCRYPTED(inode);
+#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
+ if (ci->fscrypt_auth_len &&
+ WARN_ON_ONCE(ci->fscrypt_auth_len > sizeof(struct ceph_fscrypt_auth))) {
+ /* Don't set this if it's too big */
+ arg->fscrypt_auth_len = 0;
+ } else {
+ arg->fscrypt_auth_len = ci->fscrypt_auth_len;
+ memcpy(arg->fscrypt_auth, ci->fscrypt_auth,
+ min_t(size_t, ci->fscrypt_auth_len,
+ sizeof(arg->fscrypt_auth)));
+ }
+#endif /* CONFIG_FS_ENCRYPTION */
}
+#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
+#define CAP_MSG_FIXED_FIELDS (sizeof(struct ceph_mds_caps) + \
+ 4 + 8 + 4 + 4 + 8 + 4 + 4 + 4 + 8 + 8 + 4 + 8 + 8 + 4 + 4 + 8)
+
+static inline int cap_msg_size(struct cap_msg_args *arg)
+{
+ return CAP_MSG_FIXED_FIELDS + arg->fscrypt_auth_len;
+}
+#else
+#define CAP_MSG_FIXED_FIELDS (sizeof(struct ceph_mds_caps) + \
+ 4 + 8 + 4 + 4 + 8 + 4 + 4 + 4 + 8 + 8 + 4 + 8 + 8 + 4 + 4)
+
+static inline int cap_msg_size(struct cap_msg_args *arg)
+{
+ return CAP_MSG_FIXED_FIELDS;
+}
+#endif /* CONFIG_FS_ENCRYPTION */
+
/*
* Send a cap msg on the given inode.
*
@@ -1444,7 +1498,8 @@ static void __send_cap(struct cap_msg_args *arg, struct ceph_inode_info *ci)
struct ceph_msg *msg;
struct inode *inode = &ci->netfs.inode;
- msg = ceph_msg_new(CEPH_MSG_CLIENT_CAPS, CAP_MSG_SIZE, GFP_NOFS, false);
+ msg = ceph_msg_new(CEPH_MSG_CLIENT_CAPS, cap_msg_size(arg), GFP_NOFS,
+ false);
if (!msg) {
pr_err("error allocating cap msg: ino (%llx.%llx) flushing %s tid %llu, requeuing cap.\n",
ceph_vinop(inode), ceph_cap_string(arg->dirty),
@@ -1470,10 +1525,6 @@ static inline int __send_flush_snap(struct inode *inode,
struct cap_msg_args arg;
struct ceph_msg *msg;
- msg = ceph_msg_new(CEPH_MSG_CLIENT_CAPS, CAP_MSG_SIZE, GFP_NOFS, false);
- if (!msg)
- return -ENOMEM;
-
arg.session = session;
arg.ino = ceph_vino(inode).ino;
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fs/ceph/crypto.c
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fs/ceph/crypto.h
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fs/ceph/dir.c
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fs/ceph/export.c
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fs/ceph/file.c
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fs/ceph/inode.c
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fs/ceph/ioctl.c
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fs/ceph/mds_client.c
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fs/ceph/mds_client.h
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fs/ceph/quota.c
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fs/ceph/snap.c
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include/linux/ceph/ceph_fs.h
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