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-rw-r--r--fs/ceph/addr.c416
-rw-r--r--fs/ceph/caps.c142
-rw-r--r--fs/ceph/debugfs.c20
-rw-r--r--fs/ceph/dir.c53
-rw-r--r--fs/ceph/file.c92
-rw-r--r--fs/ceph/inode.c29
-rw-r--r--fs/ceph/locks.c2
-rw-r--r--fs/ceph/mds_client.c109
-rw-r--r--fs/ceph/mds_client.h4
-rw-r--r--fs/ceph/metric.c14
-rw-r--r--fs/ceph/metric.h7
-rw-r--r--fs/ceph/quota.c14
-rw-r--r--fs/ceph/snap.c2
-rw-r--r--fs/ceph/super.c8
-rw-r--r--fs/ceph/super.h86
-rw-r--r--fs/ceph/xattr.c3
16 files changed, 527 insertions, 474 deletions
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 6ea761c84494..35c83f65475b 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -182,58 +182,15 @@ static int ceph_releasepage(struct page *page, gfp_t g)
return !PagePrivate(page);
}
-/*
- * Read some contiguous pages. If we cross a stripe boundary, shorten
- * *plen. Return number of bytes read, or error.
- */
-static int ceph_sync_readpages(struct ceph_fs_client *fsc,
- struct ceph_vino vino,
- struct ceph_file_layout *layout,
- u64 off, u64 *plen,
- u32 truncate_seq, u64 truncate_size,
- struct page **pages, int num_pages,
- int page_align)
-{
- struct ceph_osd_client *osdc = &fsc->client->osdc;
- struct ceph_osd_request *req;
- int rc = 0;
-
- dout("readpages on ino %llx.%llx on %llu~%llu\n", vino.ino,
- vino.snap, off, *plen);
- req = ceph_osdc_new_request(osdc, layout, vino, off, plen, 0, 1,
- CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ,
- NULL, truncate_seq, truncate_size,
- false);
- if (IS_ERR(req))
- return PTR_ERR(req);
-
- /* it may be a short read due to an object boundary */
- osd_req_op_extent_osd_data_pages(req, 0,
- pages, *plen, page_align, false, false);
-
- dout("readpages final extent is %llu~%llu (%llu bytes align %d)\n",
- off, *plen, *plen, page_align);
-
- rc = ceph_osdc_start_request(osdc, req, false);
- if (!rc)
- rc = ceph_osdc_wait_request(osdc, req);
-
- ceph_update_read_latency(&fsc->mdsc->metric, req->r_start_latency,
- req->r_end_latency, rc);
-
- ceph_osdc_put_request(req);
- dout("readpages result %d\n", rc);
- return rc;
-}
-
-/*
- * read a single page, without unlocking it.
- */
+/* read a single page, without unlocking it. */
static int ceph_do_readpage(struct file *filp, struct page *page)
{
struct inode *inode = file_inode(filp);
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+ struct ceph_osd_client *osdc = &fsc->client->osdc;
+ struct ceph_osd_request *req;
+ struct ceph_vino vino = ceph_vino(inode);
int err = 0;
u64 off = page_offset(page);
u64 len = PAGE_SIZE;
@@ -260,19 +217,33 @@ static int ceph_do_readpage(struct file *filp, struct page *page)
if (err == 0)
return -EINPROGRESS;
- dout("readpage inode %p file %p page %p index %lu\n",
- inode, filp, page, page->index);
- err = ceph_sync_readpages(fsc, ceph_vino(inode),
- &ci->i_layout, off, &len,
- ci->i_truncate_seq, ci->i_truncate_size,
- &page, 1, 0);
+ dout("readpage ino %llx.%llx file %p off %llu len %llu page %p index %lu\n",
+ vino.ino, vino.snap, filp, off, len, page, page->index);
+ req = ceph_osdc_new_request(osdc, &ci->i_layout, vino, off, &len, 0, 1,
+ CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ, NULL,
+ ci->i_truncate_seq, ci->i_truncate_size,
+ false);
+ if (IS_ERR(req))
+ return PTR_ERR(req);
+
+ osd_req_op_extent_osd_data_pages(req, 0, &page, len, 0, false, false);
+
+ err = ceph_osdc_start_request(osdc, req, false);
+ if (!err)
+ err = ceph_osdc_wait_request(osdc, req);
+
+ ceph_update_read_latency(&fsc->mdsc->metric, req->r_start_latency,
+ req->r_end_latency, err);
+
+ ceph_osdc_put_request(req);
+ dout("readpage result %d\n", err);
+
if (err == -ENOENT)
err = 0;
if (err < 0) {
- SetPageError(page);
ceph_fscache_readpage_cancel(inode, page);
- if (err == -EBLACKLISTED)
- fsc->blacklisted = true;
+ if (err == -EBLOCKLISTED)
+ fsc->blocklisted = true;
goto out;
}
if (err < PAGE_SIZE)
@@ -312,8 +283,8 @@ static void finish_read(struct ceph_osd_request *req)
int i;
dout("finish_read %p req %p rc %d bytes %d\n", inode, req, rc, bytes);
- if (rc == -EBLACKLISTED)
- ceph_inode_to_client(inode)->blacklisted = true;
+ if (rc == -EBLOCKLISTED)
+ ceph_inode_to_client(inode)->blocklisted = true;
/* unlock all pages, zeroing any data we didn't read */
osd_data = osd_req_op_extent_osd_data(req, 0);
@@ -620,50 +591,6 @@ static u64 get_writepages_data_length(struct inode *inode,
}
/*
- * do a synchronous write on N pages
- */
-static int ceph_sync_writepages(struct ceph_fs_client *fsc,
- struct ceph_vino vino,
- struct ceph_file_layout *layout,
- struct ceph_snap_context *snapc,
- u64 off, u64 len,
- u32 truncate_seq, u64 truncate_size,
- struct timespec64 *mtime,
- struct page **pages, int num_pages)
-{
- struct ceph_osd_client *osdc = &fsc->client->osdc;
- struct ceph_osd_request *req;
- int rc = 0;
- int page_align = off & ~PAGE_MASK;
-
- req = ceph_osdc_new_request(osdc, layout, vino, off, &len, 0, 1,
- CEPH_OSD_OP_WRITE, CEPH_OSD_FLAG_WRITE,
- snapc, truncate_seq, truncate_size,
- true);
- if (IS_ERR(req))
- return PTR_ERR(req);
-
- /* it may be a short write due to an object boundary */
- osd_req_op_extent_osd_data_pages(req, 0, pages, len, page_align,
- false, false);
- dout("writepages %llu~%llu (%llu bytes)\n", off, len, len);
-
- req->r_mtime = *mtime;
- rc = ceph_osdc_start_request(osdc, req, true);
- if (!rc)
- rc = ceph_osdc_wait_request(osdc, req);
-
- ceph_update_write_latency(&fsc->mdsc->metric, req->r_start_latency,
- req->r_end_latency, rc);
-
- ceph_osdc_put_request(req);
- if (rc == 0)
- rc = len;
- dout("writepages result %d\n", rc);
- return rc;
-}
-
-/*
* Write a single page, but leave the page locked.
*
* If we get a write error, mark the mapping for error, but still adjust the
@@ -671,20 +598,19 @@ static int ceph_sync_writepages(struct ceph_fs_client *fsc,
*/
static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
{
- struct inode *inode;
- struct ceph_inode_info *ci;
- struct ceph_fs_client *fsc;
+ struct inode *inode = page->mapping->host;
+ struct ceph_inode_info *ci = ceph_inode(inode);
+ struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
struct ceph_snap_context *snapc, *oldest;
loff_t page_off = page_offset(page);
- int err, len = PAGE_SIZE;
+ int err;
+ loff_t len = PAGE_SIZE;
struct ceph_writeback_ctl ceph_wbc;
+ struct ceph_osd_client *osdc = &fsc->client->osdc;
+ struct ceph_osd_request *req;
dout("writepage %p idx %lu\n", page, page->index);
- inode = page->mapping->host;
- ci = ceph_inode(inode);
- fsc = ceph_inode_to_client(inode);
-
/* verify this is a writeable snap context */
snapc = page_snap_context(page);
if (!snapc) {
@@ -713,7 +639,7 @@ 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;
- dout("writepage %p page %p index %lu on %llu~%u snapc %p seq %lld\n",
+ 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);
if (atomic_long_inc_return(&fsc->writeback_count) >
@@ -721,11 +647,33 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
set_bdi_congested(inode_to_bdi(inode), BLK_RW_ASYNC);
set_page_writeback(page);
- err = ceph_sync_writepages(fsc, ceph_vino(inode),
- &ci->i_layout, snapc, page_off, len,
- ceph_wbc.truncate_seq,
- ceph_wbc.truncate_size,
- &inode->i_mtime, &page, 1);
+ 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);
+ if (IS_ERR(req)) {
+ redirty_page_for_writepage(wbc, page);
+ end_page_writeback(page);
+ return PTR_ERR(req);
+ }
+
+ /* it may be a short write due to an object boundary */
+ WARN_ON_ONCE(len > PAGE_SIZE);
+ 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);
+
+ req->r_mtime = inode->i_mtime;
+ err = ceph_osdc_start_request(osdc, req, true);
+ if (!err)
+ err = ceph_osdc_wait_request(osdc, req);
+
+ ceph_update_write_latency(&fsc->mdsc->metric, req->r_start_latency,
+ req->r_end_latency, err);
+
+ ceph_osdc_put_request(req);
+ if (err == 0)
+ err = len;
+
if (err < 0) {
struct writeback_control tmp_wbc;
if (!wbc)
@@ -737,8 +685,8 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
end_page_writeback(page);
return err;
}
- if (err == -EBLACKLISTED)
- fsc->blacklisted = true;
+ if (err == -EBLOCKLISTED)
+ fsc->blocklisted = true;
dout("writepage setting page/mapping error %d %p\n",
err, page);
mapping_set_error(&inode->i_data, err);
@@ -801,8 +749,8 @@ static void writepages_finish(struct ceph_osd_request *req)
if (rc < 0) {
mapping_set_error(mapping, rc);
ceph_set_error_write(ci);
- if (rc == -EBLACKLISTED)
- fsc->blacklisted = true;
+ if (rc == -EBLOCKLISTED)
+ fsc->blocklisted = true;
} else {
ceph_clear_error_write(ci);
}
@@ -962,9 +910,8 @@ retry:
max_pages = wsize >> PAGE_SHIFT;
get_more_pages:
- pvec_pages = pagevec_lookup_range_nr_tag(&pvec, mapping, &index,
- end, PAGECACHE_TAG_DIRTY,
- max_pages - locked_pages);
+ pvec_pages = pagevec_lookup_range_tag(&pvec, mapping, &index,
+ end, PAGECACHE_TAG_DIRTY);
dout("pagevec_lookup_range_tag got %d\n", pvec_pages);
if (!pvec_pages && !locked_pages)
break;
@@ -1299,110 +1246,60 @@ static int context_is_writeable_or_written(struct inode *inode,
return ret;
}
-/*
- * We are only allowed to write into/dirty the page if the page is
- * clean, or already dirty within the same snap context.
+/**
+ * ceph_find_incompatible - find an incompatible context and return it
+ * @page: page being dirtied
+ *
+ * We are only allowed to write into/dirty a page if the page is
+ * clean, or already dirty within the same snap context. Returns a
+ * conflicting context if there is one, NULL if there isn't, or a
+ * negative error code on other errors.
*
- * called with page locked.
- * return success with page locked,
- * or any failure (incl -EAGAIN) with page unlocked.
+ * Must be called with page lock held.
*/
-static int ceph_update_writeable_page(struct file *file,
- loff_t pos, unsigned len,
- struct page *page)
+static struct ceph_snap_context *
+ceph_find_incompatible(struct page *page)
{
- struct inode *inode = file_inode(file);
+ struct inode *inode = page->mapping->host;
struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
struct ceph_inode_info *ci = ceph_inode(inode);
- loff_t page_off = pos & PAGE_MASK;
- int pos_in_page = pos & ~PAGE_MASK;
- int end_in_page = pos_in_page + len;
- loff_t i_size;
- int r;
- struct ceph_snap_context *snapc, *oldest;
if (READ_ONCE(fsc->mount_state) == CEPH_MOUNT_SHUTDOWN) {
dout(" page %p forced umount\n", page);
- unlock_page(page);
- return -EIO;
+ return ERR_PTR(-EIO);
}
-retry_locked:
- /* writepages currently holds page lock, but if we change that later, */
- wait_on_page_writeback(page);
+ for (;;) {
+ struct ceph_snap_context *snapc, *oldest;
+
+ wait_on_page_writeback(page);
+
+ snapc = page_snap_context(page);
+ if (!snapc || snapc == ci->i_head_snapc)
+ break;
- snapc = page_snap_context(page);
- if (snapc && snapc != ci->i_head_snapc) {
/*
* this page is already dirty in another (older) snap
* context! is it writeable now?
*/
oldest = get_oldest_context(inode, NULL, NULL);
if (snapc->seq > oldest->seq) {
+ /* not writeable -- return it for the caller to deal with */
ceph_put_snap_context(oldest);
- dout(" page %p snapc %p not current or oldest\n",
- page, snapc);
- /*
- * queue for writeback, and wait for snapc to
- * be writeable or written
- */
- snapc = ceph_get_snap_context(snapc);
- unlock_page(page);
- ceph_queue_writeback(inode);
- r = wait_event_killable(ci->i_cap_wq,
- context_is_writeable_or_written(inode, snapc));
- ceph_put_snap_context(snapc);
- if (r == -ERESTARTSYS)
- return r;
- return -EAGAIN;
+ dout(" page %p snapc %p not current or oldest\n", page, snapc);
+ return ceph_get_snap_context(snapc);
}
ceph_put_snap_context(oldest);
/* yay, writeable, do it now (without dropping page lock) */
- dout(" page %p snapc %p not current, but oldest\n",
- page, snapc);
- if (!clear_page_dirty_for_io(page))
- goto retry_locked;
- r = writepage_nounlock(page, NULL);
- if (r < 0)
- goto fail_unlock;
- goto retry_locked;
- }
-
- if (PageUptodate(page)) {
- dout(" page %p already uptodate\n", page);
- return 0;
- }
-
- /* full page? */
- if (pos_in_page == 0 && len == PAGE_SIZE)
- return 0;
-
- /* past end of file? */
- i_size = i_size_read(inode);
-
- if (page_off >= i_size ||
- (pos_in_page == 0 && (pos+len) >= i_size &&
- end_in_page - pos_in_page != PAGE_SIZE)) {
- dout(" zeroing %p 0 - %d and %d - %d\n",
- page, pos_in_page, end_in_page, (int)PAGE_SIZE);
- zero_user_segments(page,
- 0, pos_in_page,
- end_in_page, PAGE_SIZE);
- return 0;
- }
-
- /* we need to read it. */
- r = ceph_do_readpage(file, page);
- if (r < 0) {
- if (r == -EINPROGRESS)
- return -EAGAIN;
- goto fail_unlock;
+ dout(" page %p snapc %p not current, but oldest\n", page, snapc);
+ if (clear_page_dirty_for_io(page)) {
+ int r = writepage_nounlock(page, NULL);
+ if (r < 0)
+ return ERR_PTR(r);
+ }
}
- goto retry_locked;
-fail_unlock:
- unlock_page(page);
- return r;
+ return NULL;
}
/*
@@ -1414,26 +1311,78 @@ static int ceph_write_begin(struct file *file, struct address_space *mapping,
struct page **pagep, void **fsdata)
{
struct inode *inode = file_inode(file);
- struct page *page;
+ struct ceph_inode_info *ci = ceph_inode(inode);
+ struct ceph_snap_context *snapc;
+ struct page *page = NULL;
pgoff_t index = pos >> PAGE_SHIFT;
- int r;
+ int pos_in_page = pos & ~PAGE_MASK;
+ int r = 0;
- do {
- /* get a page */
- page = grab_cache_page_write_begin(mapping, index, 0);
- if (!page)
- return -ENOMEM;
+ dout("write_begin file %p inode %p page %p %d~%d\n", file, inode, page, (int)pos, (int)len);
- dout("write_begin file %p inode %p page %p %d~%d\n", file,
- inode, page, (int)pos, (int)len);
+ for (;;) {
+ page = grab_cache_page_write_begin(mapping, index, 0);
+ if (!page) {
+ r = -ENOMEM;
+ break;
+ }
- r = ceph_update_writeable_page(file, pos, len, page);
- if (r < 0)
+ snapc = ceph_find_incompatible(page);
+ if (snapc) {
+ if (IS_ERR(snapc)) {
+ r = PTR_ERR(snapc);
+ break;
+ }
+ unlock_page(page);
put_page(page);
- else
- *pagep = page;
- } while (r == -EAGAIN);
+ page = NULL;
+ ceph_queue_writeback(inode);
+ r = wait_event_killable(ci->i_cap_wq,
+ context_is_writeable_or_written(inode, snapc));
+ ceph_put_snap_context(snapc);
+ if (r != 0)
+ break;
+ continue;
+ }
+
+ if (PageUptodate(page)) {
+ dout(" page %p already uptodate\n", page);
+ break;
+ }
+
+ /*
+ * In some cases we don't need to read at all:
+ * - full page write
+ * - write that lies completely beyond EOF
+ * - write that covers the the page from start to EOF or beyond it
+ */
+ if ((pos_in_page == 0 && len == PAGE_SIZE) ||
+ (pos >= i_size_read(inode)) ||
+ (pos_in_page == 0 && (pos + len) >= i_size_read(inode))) {
+ zero_user_segments(page, 0, pos_in_page,
+ pos_in_page + len, PAGE_SIZE);
+ break;
+ }
+ /*
+ * We need to read it. If we get back -EINPROGRESS, then the page was
+ * handed off to fscache and it will be unlocked when the read completes.
+ * Refind the page in that case so we can reacquire the page lock. Otherwise
+ * we got a hard error or the read was completed synchronously.
+ */
+ r = ceph_do_readpage(file, page);
+ if (r != -EINPROGRESS)
+ break;
+ }
+
+ if (r < 0) {
+ if (page) {
+ unlock_page(page);
+ put_page(page);
+ }
+ } else {
+ *pagep = page;
+ }
return r;
}
@@ -1522,7 +1471,7 @@ static vm_fault_t ceph_filemap_fault(struct vm_fault *vmf)
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_file_info *fi = vma->vm_file->private_data;
struct page *pinned_page = NULL;
- loff_t off = vmf->pgoff << PAGE_SHIFT;
+ loff_t off = (loff_t)vmf->pgoff << PAGE_SHIFT;
int want, got, err;
sigset_t oldset;
vm_fault_t ret = VM_FAULT_SIGBUS;
@@ -1668,6 +1617,8 @@ static vm_fault_t ceph_page_mkwrite(struct vm_fault *vmf)
inode_inc_iversion_raw(inode);
do {
+ struct ceph_snap_context *snapc;
+
lock_page(page);
if (page_mkwrite_check_truncate(page, inode) < 0) {
@@ -1676,13 +1627,26 @@ static vm_fault_t ceph_page_mkwrite(struct vm_fault *vmf)
break;
}
- err = ceph_update_writeable_page(vma->vm_file, off, len, page);
- if (err >= 0) {
+ snapc = ceph_find_incompatible(page);
+ if (!snapc) {
/* success. we'll keep the page locked. */
set_page_dirty(page);
ret = VM_FAULT_LOCKED;
+ break;
}
- } while (err == -EAGAIN);
+
+ unlock_page(page);
+
+ if (IS_ERR(snapc)) {
+ ret = VM_FAULT_SIGBUS;
+ break;
+ }
+
+ ceph_queue_writeback(inode);
+ err = wait_event_killable(ci->i_cap_wq,
+ context_is_writeable_or_written(inode, snapc));
+ ceph_put_snap_context(snapc);
+ } while (err == 0);
if (ret == VM_FAULT_LOCKED ||
ci->i_inline_version != CEPH_INLINE_NONE) {
@@ -2039,16 +2003,16 @@ static int __ceph_pool_perm_get(struct ceph_inode_info *ci,
if (err >= 0 || err == -ENOENT)
have |= POOL_READ;
else if (err != -EPERM) {
- if (err == -EBLACKLISTED)
- fsc->blacklisted = true;
+ if (err == -EBLOCKLISTED)
+ fsc->blocklisted = true;
goto out_unlock;
}
if (err2 == 0 || err2 == -EEXIST)
have |= POOL_WRITE;
else if (err2 != -EPERM) {
- if (err2 == -EBLACKLISTED)
- fsc->blacklisted = true;
+ if (err2 == -EBLOCKLISTED)
+ fsc->blocklisted = true;
err = err2;
goto out_unlock;
}
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 55ccccf77cea..5027bbdca419 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -887,8 +887,8 @@ int __ceph_caps_issued_mask(struct ceph_inode_info *ci, int mask, int touch)
int have = ci->i_snap_caps;
if ((have & mask) == mask) {
- dout("__ceph_caps_issued_mask ino 0x%lx snap issued %s"
- " (mask %s)\n", ci->vfs_inode.i_ino,
+ dout("__ceph_caps_issued_mask ino 0x%llx snap issued %s"
+ " (mask %s)\n", ceph_ino(&ci->vfs_inode),
ceph_cap_string(have),
ceph_cap_string(mask));
return 1;
@@ -899,8 +899,8 @@ int __ceph_caps_issued_mask(struct ceph_inode_info *ci, int mask, int touch)
if (!__cap_is_valid(cap))
continue;
if ((cap->issued & mask) == mask) {
- dout("__ceph_caps_issued_mask ino 0x%lx cap %p issued %s"
- " (mask %s)\n", ci->vfs_inode.i_ino, cap,
+ dout("__ceph_caps_issued_mask ino 0x%llx cap %p issued %s"
+ " (mask %s)\n", ceph_ino(&ci->vfs_inode), cap,
ceph_cap_string(cap->issued),
ceph_cap_string(mask));
if (touch)
@@ -911,8 +911,8 @@ int __ceph_caps_issued_mask(struct ceph_inode_info *ci, int mask, int touch)
/* does a combination of caps satisfy mask? */
have |= cap->issued;
if ((have & mask) == mask) {
- dout("__ceph_caps_issued_mask ino 0x%lx combo issued %s"
- " (mask %s)\n", ci->vfs_inode.i_ino,
+ dout("__ceph_caps_issued_mask ino 0x%llx combo issued %s"
+ " (mask %s)\n", ceph_ino(&ci->vfs_inode),
ceph_cap_string(cap->issued),
ceph_cap_string(mask));
if (touch) {
@@ -1222,36 +1222,27 @@ struct cap_msg_args {
};
/*
- * Build and send a cap message to the given MDS.
- *
- * Caller should be holding s_mutex.
+ * cap struct size + flock buffer size + inline version + inline data size +
+ * osd_epoch_barrier + oldest_flush_tid
*/
-static int send_cap_msg(struct cap_msg_args *arg)
+#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)
{
struct ceph_mds_caps *fc;
- struct ceph_msg *msg;
void *p;
- size_t extra_len;
struct ceph_osd_client *osdc = &arg->session->s_mdsc->fsc->client->osdc;
- dout("send_cap_msg %s %llx %llx caps %s wanted %s dirty %s"
- " seq %u/%u tid %llu/%llu mseq %u follows %lld size %llu/%llu"
- " xattr_ver %llu xattr_len %d\n", ceph_cap_op_name(arg->op),
- arg->cid, arg->ino, ceph_cap_string(arg->caps),
- ceph_cap_string(arg->wanted), ceph_cap_string(arg->dirty),
- arg->seq, arg->issue_seq, arg->flush_tid, arg->oldest_flush_tid,
- arg->mseq, arg->follows, arg->size, arg->max_size,
- arg->xattr_version,
+ dout("%s %s %llx %llx caps %s wanted %s dirty %s seq %u/%u tid %llu/%llu mseq %u follows %lld size %llu/%llu xattr_ver %llu xattr_len %d\n",
+ __func__, ceph_cap_op_name(arg->op), arg->cid, arg->ino,
+ ceph_cap_string(arg->caps), ceph_cap_string(arg->wanted),
+ ceph_cap_string(arg->dirty), arg->seq, arg->issue_seq,
+ arg->flush_tid, arg->oldest_flush_tid, arg->mseq, arg->follows,
+ arg->size, arg->max_size, arg->xattr_version,
arg->xattr_buf ? (int)arg->xattr_buf->vec.iov_len : 0);
- /* flock buffer size + inline version + inline data size +
- * osd_epoch_barrier + oldest_flush_tid */
- extra_len = 4 + 8 + 4 + 4 + 8 + 4 + 4 + 4 + 8 + 8 + 4;
- msg = ceph_msg_new(CEPH_MSG_CLIENT_CAPS, sizeof(*fc) + extra_len,
- GFP_NOFS, false);
- if (!msg)
- return -ENOMEM;
-
msg->hdr.version = cpu_to_le16(10);
msg->hdr.tid = cpu_to_le64(arg->flush_tid);
@@ -1323,9 +1314,6 @@ static int send_cap_msg(struct cap_msg_args *arg)
/* Advisory flags (version 10) */
ceph_encode_32(&p, arg->flags);
-
- ceph_con_send(&arg->session->s_con, msg);
- return 0;
}
/*
@@ -1454,25 +1442,25 @@ static void __prep_cap(struct cap_msg_args *arg, struct ceph_cap *cap,
*
* Caller should hold snap_rwsem (read), s_mutex.
*/
-static void __send_cap(struct ceph_mds_client *mdsc, struct cap_msg_args *arg,
- struct ceph_inode_info *ci)
+static void __send_cap(struct cap_msg_args *arg, struct ceph_inode_info *ci)
{
+ struct ceph_msg *msg;
struct inode *inode = &ci->vfs_inode;
- int ret;
- ret = send_cap_msg(arg);
- if (ret < 0) {
- pr_err("error sending cap msg, ino (%llx.%llx) "
- "flushing %s tid %llu, requeue\n",
+ msg = ceph_msg_new(CEPH_MSG_CLIENT_CAPS, CAP_MSG_SIZE, 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),
arg->flush_tid);
spin_lock(&ci->i_ceph_lock);
- __cap_delay_requeue(mdsc, ci);
+ __cap_delay_requeue(arg->session->s_mdsc, ci);
spin_unlock(&ci->i_ceph_lock);
+ return;
}
+ encode_cap_msg(msg, arg);
+ ceph_con_send(&arg->session->s_con, msg);
ceph_buffer_put(arg->old_xattr_buf);
-
if (arg->wake)
wake_up_all(&ci->i_cap_wq);
}
@@ -1483,6 +1471,11 @@ static inline int __send_flush_snap(struct inode *inode,
u32 mseq, u64 oldest_flush_tid)
{
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;
@@ -1521,7 +1514,9 @@ static inline int __send_flush_snap(struct inode *inode,
arg.flags = 0;
arg.wake = false;
- return send_cap_msg(&arg);
+ encode_cap_msg(msg, &arg);
+ ceph_con_send(&arg.session->s_con, msg);
+ return 0;
}
/*
@@ -1906,9 +1901,8 @@ bool __ceph_should_report_size(struct ceph_inode_info *ci)
void ceph_check_caps(struct ceph_inode_info *ci, int flags,
struct ceph_mds_session *session)
{
- struct ceph_fs_client *fsc = ceph_inode_to_client(&ci->vfs_inode);
- struct ceph_mds_client *mdsc = fsc->mdsc;
struct inode *inode = &ci->vfs_inode;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
struct ceph_cap *cap;
u64 flush_tid, oldest_flush_tid;
int file_wanted, used, cap_used;
@@ -1928,12 +1922,24 @@ void ceph_check_caps(struct ceph_inode_info *ci, int flags,
retry:
spin_lock(&ci->i_ceph_lock);
retry_locked:
+ /* Caps wanted by virtue of active open files. */
file_wanted = __ceph_caps_file_wanted(ci);
+
+ /* Caps which have active references against them */
used = __ceph_caps_used(ci);
+
+ /*
+ * "issued" represents the current caps that the MDS wants us to have.
+ * "implemented" is the set that we have been granted, and includes the
+ * ones that have not yet been returned to the MDS (the "revoking" set,
+ * usually because they have outstanding references).
+ */
issued = __ceph_caps_issued(ci, &implemented);
revoking = implemented & ~issued;
want = file_wanted;
+
+ /* The ones we currently want to retain (may be adjusted below) */
retain = file_wanted | used | CEPH_CAP_PIN;
if (!mdsc->stopping && inode->i_nlink > 0) {
if (file_wanted) {
@@ -2011,6 +2017,10 @@ retry_locked:
/* NOTE: no side-effects allowed, until we take s_mutex */
+ /*
+ * If we have an auth cap, we don't need to consider any
+ * overlapping caps as used.
+ */
cap_used = used;
if (ci->i_auth_cap && cap != ci->i_auth_cap)
cap_used &= ~ci->i_auth_cap->issued;
@@ -2148,7 +2158,7 @@ ack:
want, retain, flushing, flush_tid, oldest_flush_tid);
spin_unlock(&ci->i_ceph_lock);
- __send_cap(mdsc, &arg, ci);
+ __send_cap(&arg, ci);
goto retry; /* retake i_ceph_lock and restart our cap scan. */
}
@@ -2222,7 +2232,7 @@ retry_locked:
flushing, flush_tid, oldest_flush_tid);
spin_unlock(&ci->i_ceph_lock);
- __send_cap(mdsc, &arg, ci);
+ __send_cap(&arg, ci);
} else {
if (!list_empty(&ci->i_cap_flush_list)) {
struct ceph_cap_flush *cf =
@@ -2436,7 +2446,7 @@ static void __kick_flushing_caps(struct ceph_mds_client *mdsc,
(cap->issued | cap->implemented),
cf->caps, cf->tid, oldest_flush_tid);
spin_unlock(&ci->i_ceph_lock);
- __send_cap(mdsc, &arg, ci);
+ __send_cap(&arg, ci);
} else {
struct ceph_cap_snap *capsnap =
container_of(cf, struct ceph_cap_snap,
@@ -2872,7 +2882,7 @@ int ceph_get_caps(struct file *filp, int need, int want,
struct cap_wait cw;
DEFINE_WAIT_FUNC(wait, woken_wake_function);
- cw.ino = inode->i_ino;
+ cw.ino = ceph_ino(inode);
cw.tgid = current->tgid;
cw.need = need;
cw.want = want;
@@ -4284,13 +4294,30 @@ void __ceph_touch_fmode(struct ceph_inode_info *ci,
void ceph_get_fmode(struct ceph_inode_info *ci, int fmode, int count)
{
- int i;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(ci->vfs_inode.i_sb);
int bits = (fmode << 1) | 1;
+ bool is_opened = false;
+ int i;
+
+ if (count == 1)
+ atomic64_inc(&mdsc->metric.opened_files);
+
spin_lock(&ci->i_ceph_lock);
for (i = 0; i < CEPH_FILE_MODE_BITS; i++) {
if (bits & (1 << i))
ci->i_nr_by_mode[i] += count;
+
+ /*
+ * If any of the mode ref is larger than 1,
+ * that means it has been already opened by
+ * others. Just skip checking the PIN ref.
+ */
+ if (i && ci->i_nr_by_mode[i] > 1)
+ is_opened = true;
}
+
+ if (!is_opened)
+ percpu_counter_inc(&mdsc->metric.opened_inodes);
spin_unlock(&ci->i_ceph_lock);
}
@@ -4301,15 +4328,32 @@ void ceph_get_fmode(struct ceph_inode_info *ci, int fmode, int count)
*/
void ceph_put_fmode(struct ceph_inode_info *ci, int fmode, int count)
{
- int i;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(ci->vfs_inode.i_sb);
int bits = (fmode << 1) | 1;
+ bool is_closed = true;
+ int i;
+
+ if (count == 1)
+ atomic64_dec(&mdsc->metric.opened_files);
+
spin_lock(&ci->i_ceph_lock);
for (i = 0; i < CEPH_FILE_MODE_BITS; i++) {
if (bits & (1 << i)) {
BUG_ON(ci->i_nr_by_mode[i] < count);
ci->i_nr_by_mode[i] -= count;
}
+
+ /*
+ * If any of the mode ref is not 0 after
+ * decreased, that means it is still opened
+ * by others. Just skip checking the PIN ref.
+ */
+ if (i && ci->i_nr_by_mode[i])
+ is_closed = false;
}
+
+ if (is_closed)
+ percpu_counter_dec(&mdsc->metric.opened_inodes);
spin_unlock(&ci->i_ceph_lock);
}
diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c
index 97539b497e4c..7a8fbe3e4751 100644
--- a/fs/ceph/debugfs.c
+++ b/fs/ceph/debugfs.c
@@ -148,6 +148,17 @@ static int metric_show(struct seq_file *s, void *p)
int nr_caps = 0;
s64 total, sum, avg, min, max, sq;
+ sum = percpu_counter_sum(&m->total_inodes);
+ seq_printf(s, "item total\n");
+ seq_printf(s, "------------------------------------------\n");
+ seq_printf(s, "%-35s%lld / %lld\n", "opened files / total inodes",
+ atomic64_read(&m->opened_files), sum);
+ seq_printf(s, "%-35s%lld / %lld\n", "pinned i_caps / total inodes",
+ atomic64_read(&m->total_caps), sum);
+ seq_printf(s, "%-35s%lld / %lld\n", "opened inodes / total inodes",
+ percpu_counter_sum(&m->opened_inodes), sum);
+
+ seq_printf(s, "\n");
seq_printf(s, "item total avg_lat(us) min_lat(us) max_lat(us) stdev(us)\n");
seq_printf(s, "-----------------------------------------------------------------------------------\n");
@@ -202,7 +213,8 @@ static int caps_show_cb(struct inode *inode, struct ceph_cap *cap, void *p)
{
struct seq_file *s = p;
- seq_printf(s, "0x%-17lx%-17s%-17s\n", inode->i_ino,
+ seq_printf(s, "0x%-17llx%-3d%-17s%-17s\n", ceph_ino(inode),
+ cap->session->s_mds,
ceph_cap_string(cap->issued),
ceph_cap_string(cap->implemented));
return 0;
@@ -222,8 +234,8 @@ static int caps_show(struct seq_file *s, void *p)
"reserved\t%d\n"
"min\t\t%d\n\n",
total, avail, used, reserved, min);
- seq_printf(s, "ino issued implemented\n");
- seq_printf(s, "-----------------------------------------------\n");
+ seq_printf(s, "ino mds issued implemented\n");
+ seq_printf(s, "--------------------------------------------------\n");
mutex_lock(&mdsc->mutex);
for (i = 0; i < mdsc->max_sessions; i++) {
@@ -247,7 +259,7 @@ static int caps_show(struct seq_file *s, void *p)
spin_lock(&mdsc->caps_list_lock);
list_for_each_entry(cw, &mdsc->cap_wait_list, list) {
- seq_printf(s, "%-13d0x%-17lx%-17s%-17s\n", cw->tgid, cw->ino,
+ seq_printf(s, "%-13d0x%-17llx%-17s%-17s\n", cw->tgid, cw->ino,
ceph_cap_string(cw->need),
ceph_cap_string(cw->want));
}
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 060bdcc5ce32..a4d48370b2b3 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -38,8 +38,7 @@ static int __dir_lease_try_check(const struct dentry *dentry);
static int ceph_d_init(struct dentry *dentry)
{
struct ceph_dentry_info *di;
- struct ceph_fs_client *fsc = ceph_sb_to_client(dentry->d_sb);
- struct ceph_mds_client *mdsc = fsc->mdsc;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(dentry->d_sb);
di = kmem_cache_zalloc(ceph_dentry_cachep, GFP_KERNEL);
if (!di)
@@ -259,9 +258,7 @@ static int __dcache_readdir(struct file *file, struct dir_context *ctx,
dentry, dentry, d_inode(dentry));
ctx->pos = di->offset;
if (!dir_emit(ctx, dentry->d_name.name,
- dentry->d_name.len,
- ceph_translate_ino(dentry->d_sb,
- d_inode(dentry)->i_ino),
+ dentry->d_name.len, ceph_present_inode(d_inode(dentry)),
d_inode(dentry)->i_mode >> 12)) {
dput(dentry);
err = 0;
@@ -324,18 +321,21 @@ static int ceph_readdir(struct file *file, struct dir_context *ctx)
/* always start with . and .. */
if (ctx->pos == 0) {
dout("readdir off 0 -> '.'\n");
- if (!dir_emit(ctx, ".", 1,
- ceph_translate_ino(inode->i_sb, inode->i_ino),
+ if (!dir_emit(ctx, ".", 1, ceph_present_inode(inode),
inode->i_mode >> 12))
return 0;
ctx->pos = 1;
}
if (ctx->pos == 1) {
- ino_t ino = parent_ino(file->f_path.dentry);
+ u64 ino;
+ struct dentry *dentry = file->f_path.dentry;
+
+ spin_lock(&dentry->d_lock);
+ ino = ceph_present_inode(dentry->d_parent->d_inode);
+ spin_unlock(&dentry->d_lock);
+
dout("readdir off 1 -> '..'\n");
- if (!dir_emit(ctx, "..", 2,
- ceph_translate_ino(inode->i_sb, ino),
- inode->i_mode >> 12))
+ if (!dir_emit(ctx, "..", 2, ino, inode->i_mode >> 12))
return 0;
ctx->pos = 2;
}
@@ -507,9 +507,6 @@ more:
}
for (; i < rinfo->dir_nr; i++) {
struct ceph_mds_reply_dir_entry *rde = rinfo->dir_entries + i;
- struct ceph_vino vino;
- ino_t ino;
- u32 ftype;
BUG_ON(rde->offset < ctx->pos);
@@ -519,13 +516,10 @@ more:
rde->name_len, rde->name, &rde->inode.in);
BUG_ON(!rde->inode.in);
- ftype = le32_to_cpu(rde->inode.in->mode) >> 12;
- vino.ino = le64_to_cpu(rde->inode.in->ino);
- vino.snap = le64_to_cpu(rde->inode.in->snapid);
- ino = ceph_vino_to_ino(vino);
if (!dir_emit(ctx, rde->name, rde->name_len,
- ceph_translate_ino(inode->i_sb, ino), ftype)) {
+ ceph_present_ino(inode->i_sb, le64_to_cpu(rde->inode.in->ino)),
+ le32_to_cpu(rde->inode.in->mode) >> 12)) {
dout("filldir stopping us...\n");
return 0;
}
@@ -743,7 +737,7 @@ static struct dentry *ceph_lookup(struct inode *dir, struct dentry *dentry,
unsigned int flags)
{
struct ceph_fs_client *fsc = ceph_sb_to_client(dir->i_sb);
- struct ceph_mds_client *mdsc = fsc->mdsc;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(dir->i_sb);
struct ceph_mds_request *req;
int op;
int mask;
@@ -832,8 +826,7 @@ int ceph_handle_notrace_create(struct inode *dir, struct dentry *dentry)
static int ceph_mknod(struct inode *dir, struct dentry *dentry,
umode_t mode, dev_t rdev)
{
- struct ceph_fs_client *fsc = ceph_sb_to_client(dir->i_sb);
- struct ceph_mds_client *mdsc = fsc->mdsc;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(dir->i_sb);
struct ceph_mds_request *req;
struct ceph_acl_sec_ctx as_ctx = {};
int err;
@@ -894,8 +887,7 @@ static int ceph_create(struct inode *dir, struct dentry *dentry, umode_t mode,
static int ceph_symlink(struct inode *dir, struct dentry *dentry,
const char *dest)
{
- struct ceph_fs_client *fsc = ceph_sb_to_client(dir->i_sb);
- struct ceph_mds_client *mdsc = fsc->mdsc;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(dir->i_sb);
struct ceph_mds_request *req;
struct ceph_acl_sec_ctx as_ctx = {};
int err;
@@ -947,8 +939,7 @@ out:
static int ceph_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
{
- struct ceph_fs_client *fsc = ceph_sb_to_client(dir->i_sb);
- struct ceph_mds_client *mdsc = fsc->mdsc;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(dir->i_sb);
struct ceph_mds_request *req;
struct ceph_acl_sec_ctx as_ctx = {};
int err = -EROFS;
@@ -1015,8 +1006,7 @@ out:
static int ceph_link(struct dentry *old_dentry, struct inode *dir,
struct dentry *dentry)
{
- struct ceph_fs_client *fsc = ceph_sb_to_client(dir->i_sb);
- struct ceph_mds_client *mdsc = fsc->mdsc;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(dir->i_sb);
struct ceph_mds_request *req;
int err;
@@ -1161,7 +1151,7 @@ retry:
if (try_async && op == CEPH_MDS_OP_UNLINK &&
(req->r_dir_caps = get_caps_for_async_unlink(dir, dentry))) {
- dout("async unlink on %lu/%.*s caps=%s", dir->i_ino,
+ dout("async unlink on %llu/%.*s caps=%s", ceph_ino(dir),
dentry->d_name.len, dentry->d_name.name,
ceph_cap_string(req->r_dir_caps));
set_bit(CEPH_MDS_R_ASYNC, &req->r_req_flags);
@@ -1197,8 +1187,7 @@ static int ceph_rename(struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry,
unsigned int flags)
{
- struct ceph_fs_client *fsc = ceph_sb_to_client(old_dir->i_sb);
- struct ceph_mds_client *mdsc = fsc->mdsc;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(old_dir->i_sb);
struct ceph_mds_request *req;
int op = CEPH_MDS_OP_RENAME;
int err;
@@ -1745,7 +1734,7 @@ static int ceph_d_revalidate(struct dentry *dentry, unsigned int flags)
case -ENOENT:
if (d_really_is_negative(dentry))
valid = 1;
- /* Fallthrough */
+ fallthrough;
default:
break;
}
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index d51c3f2fdca0..209535d5b8d3 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -182,8 +182,7 @@ static void put_bvecs(struct bio_vec *bvecs, int num_bvecs, bool should_dirty)
static struct ceph_mds_request *
prepare_open_request(struct super_block *sb, int flags, int create_mode)
{
- struct ceph_fs_client *fsc = ceph_sb_to_client(sb);
- struct ceph_mds_client *mdsc = fsc->mdsc;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(sb);
struct ceph_mds_request *req;
int want_auth = USE_ANY_MDS;
int op = (flags & O_CREAT) ? CEPH_MDS_OP_CREATE : CEPH_MDS_OP_OPEN;
@@ -252,12 +251,10 @@ static int ceph_init_file(struct inode *inode, struct file *file, int fmode)
case S_IFREG:
ceph_fscache_register_inode_cookie(inode);
ceph_fscache_file_set_cookie(inode, file);
- /* fall through */
+ fallthrough;
case S_IFDIR:
ret = ceph_init_file_info(inode, file, fmode,
S_ISDIR(inode->i_mode));
- if (ret)
- return ret;
break;
case S_IFLNK:
@@ -285,7 +282,7 @@ static int ceph_init_file(struct inode *inode, struct file *file, int fmode)
*/
int ceph_renew_caps(struct inode *inode, int fmode)
{
- struct ceph_mds_client *mdsc = ceph_inode_to_client(inode)->mdsc;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_mds_request *req;
int err, flags, wanted;
@@ -630,8 +627,8 @@ static int ceph_finish_async_create(struct inode *dir, struct dentry *dentry,
} else {
struct dentry *dn;
- dout("%s d_adding new inode 0x%llx to 0x%lx/%s\n", __func__,
- vino.ino, dir->i_ino, dentry->d_name.name);
+ dout("%s d_adding new inode 0x%llx to 0x%llx/%s\n", __func__,
+ vino.ino, ceph_ino(dir), dentry->d_name.name);
ceph_dir_clear_ordered(dir);
ceph_init_inode_acls(inode, as_ctx);
if (inode->i_state & I_NEW) {
@@ -865,6 +862,8 @@ static ssize_t ceph_sync_read(struct kiocb *iocb, struct iov_iter *to,
size_t page_off;
u64 i_size;
bool more;
+ int idx;
+ size_t left;
req = ceph_osdc_new_request(osdc, &ci->i_layout,
ci->i_vino, off, &len, 0, 1,
@@ -878,29 +877,13 @@ static ssize_t ceph_sync_read(struct kiocb *iocb, struct iov_iter *to,
more = len < iov_iter_count(to);
- if (unlikely(iov_iter_is_pipe(to))) {
- ret = iov_iter_get_pages_alloc(to, &pages, len,
- &page_off);
- if (ret <= 0) {
- ceph_osdc_put_request(req);
- ret = -ENOMEM;
- break;
- }
- num_pages = DIV_ROUND_UP(ret + page_off, PAGE_SIZE);
- if (ret < len) {
- len = ret;
- osd_req_op_extent_update(req, 0, len);
- more = false;
- }
- } else {
- num_pages = calc_pages_for(off, len);
- page_off = off & ~PAGE_MASK;
- pages = ceph_alloc_page_vector(num_pages, GFP_KERNEL);
- if (IS_ERR(pages)) {
- ceph_osdc_put_request(req);
- ret = PTR_ERR(pages);
- break;
- }
+ num_pages = calc_pages_for(off, len);
+ page_off = off & ~PAGE_MASK;
+ pages = ceph_alloc_page_vector(num_pages, GFP_KERNEL);
+ if (IS_ERR(pages)) {
+ ceph_osdc_put_request(req);
+ ret = PTR_ERR(pages);
+ break;
}
osd_req_op_extent_osd_data_pages(req, 0, pages, len, page_off,
@@ -931,36 +914,27 @@ static ssize_t ceph_sync_read(struct kiocb *iocb, struct iov_iter *to,
ret += zlen;
}
- if (unlikely(iov_iter_is_pipe(to))) {
- if (ret > 0) {
- iov_iter_advance(to, ret);
- off += ret;
- } else {
- iov_iter_advance(to, 0);
- }
- ceph_put_page_vector(pages, num_pages, false);
- } else {
- int idx = 0;
- size_t left = ret > 0 ? ret : 0;
- while (left > 0) {
- size_t len, copied;
- page_off = off & ~PAGE_MASK;
- len = min_t(size_t, left, PAGE_SIZE - page_off);
- copied = copy_page_to_iter(pages[idx++],
- page_off, len, to);
- off += copied;
- left -= copied;
- if (copied < len) {
- ret = -EFAULT;
- break;
- }
+ idx = 0;
+ left = ret > 0 ? ret : 0;
+ while (left > 0) {
+ size_t len, copied;
+ page_off = off & ~PAGE_MASK;
+ len = min_t(size_t, left, PAGE_SIZE - page_off);
+ SetPageUptodate(pages[idx]);
+ copied = copy_page_to_iter(pages[idx++],
+ page_off, len, to);
+ off += copied;
+ left -= copied;
+ if (copied < len) {
+ ret = -EFAULT;
+ break;
}
- ceph_release_page_vector(pages, num_pages);
}
+ ceph_release_page_vector(pages, num_pages);
if (ret < 0) {
- if (ret == -EBLACKLISTED)
- fsc->blacklisted = true;
+ if (ret == -EBLOCKLISTED)
+ fsc->blocklisted = true;
break;
}
@@ -1052,8 +1026,7 @@ static void ceph_aio_complete_req(struct ceph_osd_request *req)
struct inode *inode = req->r_inode;
struct ceph_aio_request *aio_req = req->r_priv;
struct ceph_osd_data *osd_data = osd_req_op_extent_osd_data(req, 0);
- struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
- struct ceph_client_metric *metric = &fsc->mdsc->metric;
+ struct ceph_client_metric *metric = &ceph_sb_to_mdsc(inode->i_sb)->metric;
BUG_ON(osd_data->type != CEPH_OSD_DATA_TYPE_BVECS);
BUG_ON(!osd_data->num_bvecs);
@@ -2507,6 +2480,7 @@ const struct file_operations ceph_file_fops = {
.mmap = ceph_mmap,
.fsync = ceph_fsync,
.lock = ceph_lock,
+ .setlease = simple_nosetlease,
.flock = ceph_flock,
.splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 357c937699d5..526faf4778ce 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -41,26 +41,28 @@ static void ceph_inode_work(struct work_struct *work);
*/
static int ceph_set_ino_cb(struct inode *inode, void *data)
{
- ceph_inode(inode)->i_vino = *(struct ceph_vino *)data;
- inode->i_ino = ceph_vino_to_ino(*(struct ceph_vino *)data);
+ struct ceph_inode_info *ci = ceph_inode(inode);
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
+
+ ci->i_vino = *(struct ceph_vino *)data;
+ inode->i_ino = ceph_vino_to_ino_t(ci->i_vino);
inode_set_iversion_raw(inode, 0);
+ percpu_counter_inc(&mdsc->metric.total_inodes);
+
return 0;
}
struct inode *ceph_get_inode(struct super_block *sb, struct ceph_vino vino)
{
struct inode *inode;
- ino_t t = ceph_vino_to_ino(vino);
- inode = iget5_locked(sb, t, ceph_ino_compare, ceph_set_ino_cb, &vino);
+ inode = iget5_locked(sb, (unsigned long)vino.ino, ceph_ino_compare,
+ ceph_set_ino_cb, &vino);
if (!inode)
return ERR_PTR(-ENOMEM);
- if (inode->i_state & I_NEW)
- dout("get_inode created new inode %p %llx.%llx ino %llx\n",
- inode, ceph_vinop(inode), (u64)inode->i_ino);
- dout("get_inode on %lu=%llx.%llx got %p\n", inode->i_ino, vino.ino,
- vino.snap, inode);
+ dout("get_inode on %llu=%llx.%llx got %p new %d\n", ceph_present_inode(inode),
+ ceph_vinop(inode), inode, !!(inode->i_state & I_NEW));
return inode;
}
@@ -539,11 +541,14 @@ void ceph_free_inode(struct inode *inode)
void ceph_evict_inode(struct inode *inode)
{
struct ceph_inode_info *ci = ceph_inode(inode);
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
struct ceph_inode_frag *frag;
struct rb_node *n;
dout("evict_inode %p ino %llx.%llx\n", inode, ceph_vinop(inode));
+ percpu_counter_dec(&mdsc->metric.total_inodes);
+
truncate_inode_pages_final(&inode->i_data);
clear_inode(inode);
@@ -559,8 +564,6 @@ void ceph_evict_inode(struct inode *inode)
* caps in i_snap_caps.
*/
if (ci->i_snap_realm) {
- struct ceph_mds_client *mdsc =
- ceph_inode_to_client(inode)->mdsc;
if (ceph_snap(inode) == CEPH_NOSNAP) {
struct ceph_snap_realm *realm = ci->i_snap_realm;
dout(" dropping residual ref to snap realm %p\n",
@@ -740,7 +743,7 @@ int ceph_fill_inode(struct inode *inode, struct page *locked_page,
struct ceph_mds_session *session, int cap_fmode,
struct ceph_cap_reservation *caps_reservation)
{
- struct ceph_mds_client *mdsc = ceph_inode_to_client(inode)->mdsc;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
struct ceph_mds_reply_inode *info = iinfo->in;
struct ceph_inode_info *ci = ceph_inode(inode);
int issued, new_issued, info_caps;
@@ -2378,7 +2381,7 @@ int ceph_getattr(const struct path *path, struct kstat *stat,
}
generic_fillattr(inode, stat);
- stat->ino = ceph_translate_ino(inode->i_sb, inode->i_ino);
+ stat->ino = ceph_present_inode(inode);
/*
* btime on newly-allocated inodes is 0, so if this is still set to
diff --git a/fs/ceph/locks.c b/fs/ceph/locks.c
index d6b9166e71e4..048a435a29be 100644
--- a/fs/ceph/locks.c
+++ b/fs/ceph/locks.c
@@ -63,7 +63,7 @@ static const struct file_lock_operations ceph_fl_lock_ops = {
static int ceph_lock_message(u8 lock_type, u16 operation, struct inode *inode,
int cmd, u8 wait, struct file_lock *fl)
{
- struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
struct ceph_mds_request *req;
int err;
u64 length = 0;
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 4a26862d7667..08f1c0c31dc2 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -3303,7 +3303,7 @@ bad:
}
static int __decode_session_metadata(void **p, void *end,
- bool *blacklisted)
+ bool *blocklisted)
{
/* map<string,string> */
u32 n;
@@ -3317,8 +3317,12 @@ static int __decode_session_metadata(void **p, void *end,
*p += len;
ceph_decode_32_safe(p, end, len, bad);
ceph_decode_need(p, end, len, bad);
+ /*
+ * Match "blocklisted (blacklisted)" from newer MDSes,
+ * or "blacklisted" from older MDSes.
+ */
if (err_str && strnstr(*p, "blacklisted", len))
- *blacklisted = true;
+ *blocklisted = true;
*p += len;
}
return 0;
@@ -3341,7 +3345,7 @@ static void handle_session(struct ceph_mds_session *session,
u32 op;
u64 seq, features = 0;
int wake = 0;
- bool blacklisted = false;
+ bool blocklisted = false;
/* decode */
ceph_decode_need(&p, end, sizeof(*h), bad);
@@ -3354,7 +3358,7 @@ static void handle_session(struct ceph_mds_session *session,
if (msg_version >= 3) {
u32 len;
/* version >= 2, metadata */
- if (__decode_session_metadata(&p, end, &blacklisted) < 0)
+ if (__decode_session_metadata(&p, end, &blocklisted) < 0)
goto bad;
/* version >= 3, feature bits */
ceph_decode_32_safe(&p, end, len, bad);
@@ -3445,8 +3449,8 @@ static void handle_session(struct ceph_mds_session *session,
session->s_state = CEPH_MDS_SESSION_REJECTED;
cleanup_session_requests(mdsc, session);
remove_session_caps(session);
- if (blacklisted)
- mdsc->fsc->blacklisted = true;
+ if (blocklisted)
+ mdsc->fsc->blocklisted = true;
wake = 2; /* for good measure */
break;
@@ -3612,6 +3616,39 @@ fail_msg:
return err;
}
+static struct dentry* d_find_primary(struct inode *inode)
+{
+ struct dentry *alias, *dn = NULL;
+
+ if (hlist_empty(&inode->i_dentry))
+ return NULL;
+
+ spin_lock(&inode->i_lock);
+ if (hlist_empty(&inode->i_dentry))
+ goto out_unlock;
+
+ if (S_ISDIR(inode->i_mode)) {
+ alias = hlist_entry(inode->i_dentry.first, struct dentry, d_u.d_alias);
+ if (!IS_ROOT(alias))
+ dn = dget(alias);
+ goto out_unlock;
+ }
+
+ hlist_for_each_entry(alias, &inode->i_dentry, d_u.d_alias) {
+ spin_lock(&alias->d_lock);
+ if (!d_unhashed(alias) &&
+ (ceph_dentry(alias)->flags & CEPH_DENTRY_PRIMARY_LINK)) {
+ dn = dget_dlock(alias);
+ }
+ spin_unlock(&alias->d_lock);
+ if (dn)
+ break;
+ }
+out_unlock:
+ spin_unlock(&inode->i_lock);
+ return dn;
+}
+
/*
* Encode information about a cap for a reconnect with the MDS.
*/
@@ -3625,13 +3662,32 @@ static int reconnect_caps_cb(struct inode *inode, struct ceph_cap *cap,
struct ceph_inode_info *ci = cap->ci;
struct ceph_reconnect_state *recon_state = arg;
struct ceph_pagelist *pagelist = recon_state->pagelist;
- int err;
+ struct dentry *dentry;
+ char *path;
+ int pathlen, err;
+ u64 pathbase;
u64 snap_follows;
dout(" adding %p ino %llx.%llx cap %p %lld %s\n",
inode, ceph_vinop(inode), cap, cap->cap_id,
ceph_cap_string(cap->issued));
+ dentry = d_find_primary(inode);
+ if (dentry) {
+ /* set pathbase to parent dir when msg_version >= 2 */
+ path = ceph_mdsc_build_path(dentry, &pathlen, &pathbase,
+ recon_state->msg_version >= 2);
+ dput(dentry);
+ if (IS_ERR(path)) {
+ err = PTR_ERR(path);
+ goto out_err;
+ }
+ } else {
+ path = NULL;
+ pathlen = 0;
+ pathbase = 0;
+ }
+
spin_lock(&ci->i_ceph_lock);
cap->seq = 0; /* reset cap seq */
cap->issue_seq = 0; /* and issue_seq */
@@ -3652,7 +3708,7 @@ static int reconnect_caps_cb(struct inode *inode, struct ceph_cap *cap,
rec.v2.wanted = cpu_to_le32(__ceph_caps_wanted(ci));
rec.v2.issued = cpu_to_le32(cap->issued);
rec.v2.snaprealm = cpu_to_le64(ci->i_snap_realm->ino);
- rec.v2.pathbase = 0;
+ rec.v2.pathbase = cpu_to_le64(pathbase);
rec.v2.flock_len = (__force __le32)
((ci->i_ceph_flags & CEPH_I_ERROR_FILELOCK) ? 0 : 1);
} else {
@@ -3663,7 +3719,7 @@ static int reconnect_caps_cb(struct inode *inode, struct ceph_cap *cap,
ceph_encode_timespec64(&rec.v1.mtime, &inode->i_mtime);
ceph_encode_timespec64(&rec.v1.atime, &inode->i_atime);
rec.v1.snaprealm = cpu_to_le64(ci->i_snap_realm->ino);
- rec.v1.pathbase = 0;
+ rec.v1.pathbase = cpu_to_le64(pathbase);
}
if (list_empty(&ci->i_cap_snaps)) {
@@ -3725,7 +3781,7 @@ encode_again:
sizeof(struct ceph_filelock);
rec.v2.flock_len = cpu_to_le32(struct_len);
- struct_len += sizeof(u32) + sizeof(rec.v2);
+ struct_len += sizeof(u32) + pathlen + sizeof(rec.v2);
if (struct_v >= 2)
struct_len += sizeof(u64); /* snap_follows */
@@ -3749,7 +3805,7 @@ encode_again:
ceph_pagelist_encode_8(pagelist, 1);
ceph_pagelist_encode_32(pagelist, struct_len);
}
- ceph_pagelist_encode_string(pagelist, NULL, 0);
+ ceph_pagelist_encode_string(pagelist, path, pathlen);
ceph_pagelist_append(pagelist, &rec, sizeof(rec.v2));
ceph_locks_to_pagelist(flocks, pagelist,
num_fcntl_locks, num_flock_locks);
@@ -3758,39 +3814,20 @@ encode_again:
out_freeflocks:
kfree(flocks);
} else {
- u64 pathbase = 0;
- int pathlen = 0;
- char *path = NULL;
- struct dentry *dentry;
-
- dentry = d_find_alias(inode);
- if (dentry) {
- path = ceph_mdsc_build_path(dentry,
- &pathlen, &pathbase, 0);
- dput(dentry);
- if (IS_ERR(path)) {
- err = PTR_ERR(path);
- goto out_err;
- }
- rec.v1.pathbase = cpu_to_le64(pathbase);
- }
-
err = ceph_pagelist_reserve(pagelist,
sizeof(u64) + sizeof(u32) +
pathlen + sizeof(rec.v1));
- if (err) {
- goto out_freepath;
- }
+ if (err)
+ goto out_err;
ceph_pagelist_encode_64(pagelist, ceph_ino(inode));
ceph_pagelist_encode_string(pagelist, path, pathlen);
ceph_pagelist_append(pagelist, &rec, sizeof(rec.v1));
-out_freepath:
- ceph_mdsc_free_path(path, pathlen);
}
out_err:
- if (err >= 0)
+ ceph_mdsc_free_path(path, pathlen);
+ if (!err)
recon_state->nr_caps++;
return err;
}
@@ -4334,14 +4371,14 @@ static void maybe_recover_session(struct ceph_mds_client *mdsc)
if (READ_ONCE(fsc->mount_state) != CEPH_MOUNT_MOUNTED)
return;
- if (!READ_ONCE(fsc->blacklisted))
+ if (!READ_ONCE(fsc->blocklisted))
return;
if (fsc->last_auto_reconnect &&
time_before(jiffies, fsc->last_auto_reconnect + HZ * 60 * 30))
return;
- pr_info("auto reconnect after blacklisted\n");
+ pr_info("auto reconnect after blocklisted\n");
fsc->last_auto_reconnect = jiffies;
ceph_force_reconnect(fsc->sb);
}
diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h
index bc9e95937d7c..cbf8af437140 100644
--- a/fs/ceph/mds_client.h
+++ b/fs/ceph/mds_client.h
@@ -372,7 +372,7 @@ struct ceph_quotarealm_inode {
struct cap_wait {
struct list_head list;
- unsigned long ino;
+ u64 ino;
pid_t tgid;
int need;
int want;
@@ -393,7 +393,7 @@ struct ceph_mds_client {
struct ceph_mds_session **sessions; /* NULL for mds if no session */
atomic_t num_sessions;
- int max_sessions; /* len of s_mds_sessions */
+ int max_sessions; /* len of sessions array */
int stopping; /* true if shutting down */
atomic64_t quotarealms_count; /* # realms with quota */
diff --git a/fs/ceph/metric.c b/fs/ceph/metric.c
index 2466b261fba2..fee4c4778313 100644
--- a/fs/ceph/metric.c
+++ b/fs/ceph/metric.c
@@ -192,11 +192,23 @@ int ceph_metric_init(struct ceph_client_metric *m)
m->total_metadatas = 0;
m->metadata_latency_sum = 0;
+ atomic64_set(&m->opened_files, 0);
+ ret = percpu_counter_init(&m->opened_inodes, 0, GFP_KERNEL);
+ if (ret)
+ goto err_opened_inodes;
+ ret = percpu_counter_init(&m->total_inodes, 0, GFP_KERNEL);
+ if (ret)
+ goto err_total_inodes;
+
m->session = NULL;
INIT_DELAYED_WORK(&m->delayed_work, metric_delayed_work);
return 0;
+err_total_inodes:
+ percpu_counter_destroy(&m->opened_inodes);
+err_opened_inodes:
+ percpu_counter_destroy(&m->i_caps_mis);
err_i_caps_mis:
percpu_counter_destroy(&m->i_caps_hit);
err_i_caps_hit:
@@ -212,6 +224,8 @@ void ceph_metric_destroy(struct ceph_client_metric *m)
if (!m)
return;
+ percpu_counter_destroy(&m->total_inodes);
+ percpu_counter_destroy(&m->opened_inodes);
percpu_counter_destroy(&m->i_caps_mis);
percpu_counter_destroy(&m->i_caps_hit);
percpu_counter_destroy(&m->d_lease_mis);
diff --git a/fs/ceph/metric.h b/fs/ceph/metric.h
index 1d0959d669d7..710f3f1dceab 100644
--- a/fs/ceph/metric.h
+++ b/fs/ceph/metric.h
@@ -115,6 +115,13 @@ struct ceph_client_metric {
ktime_t metadata_latency_min;
ktime_t metadata_latency_max;
+ /* The total number of directories and files that are opened */
+ atomic64_t opened_files;
+
+ /* The total number of inodes that have opened files or directories */
+ struct percpu_counter opened_inodes;
+ struct percpu_counter total_inodes;
+
struct ceph_mds_session *session;
struct delayed_work delayed_work; /* delayed work */
};
diff --git a/fs/ceph/quota.c b/fs/ceph/quota.c
index 198ddde5c1e6..83cb4f26b689 100644
--- a/fs/ceph/quota.c
+++ b/fs/ceph/quota.c
@@ -12,7 +12,7 @@
void ceph_adjust_quota_realms_count(struct inode *inode, bool inc)
{
- struct ceph_mds_client *mdsc = ceph_inode_to_client(inode)->mdsc;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
if (inc)
atomic64_inc(&mdsc->quotarealms_count);
else
@@ -21,14 +21,14 @@ void ceph_adjust_quota_realms_count(struct inode *inode, bool inc)
static inline bool ceph_has_realms_with_quotas(struct inode *inode)
{
- struct ceph_mds_client *mdsc = ceph_inode_to_client(inode)->mdsc;
- struct super_block *sb = mdsc->fsc->sb;
+ struct super_block *sb = inode->i_sb;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(sb);
+ struct inode *root = d_inode(sb->s_root);
if (atomic64_read(&mdsc->quotarealms_count) > 0)
return true;
/* if root is the real CephFS root, we don't have quota realms */
- if (sb->s_root->d_inode &&
- (sb->s_root->d_inode->i_ino == CEPH_INO_ROOT))
+ if (root && ceph_ino(root) == CEPH_INO_ROOT)
return false;
/* otherwise, we can't know for sure */
return true;
@@ -266,7 +266,7 @@ restart:
static bool ceph_quota_is_same_realm(struct inode *old, struct inode *new)
{
- struct ceph_mds_client *mdsc = ceph_inode_to_client(old)->mdsc;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(old->i_sb);
struct ceph_snap_realm *old_realm, *new_realm;
bool is_same;
@@ -313,7 +313,7 @@ enum quota_check_op {
static bool check_quota_exceeded(struct inode *inode, enum quota_check_op op,
loff_t delta)
{
- struct ceph_mds_client *mdsc = ceph_inode_to_client(inode)->mdsc;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
struct ceph_inode_info *ci;
struct ceph_snap_realm *realm, *next;
struct inode *in;
diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c
index 923be9399b21..0da39c16dab4 100644
--- a/fs/ceph/snap.c
+++ b/fs/ceph/snap.c
@@ -602,7 +602,7 @@ int __ceph_finish_cap_snap(struct ceph_inode_info *ci,
struct ceph_cap_snap *capsnap)
{
struct inode *inode = &ci->vfs_inode;
- struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
+ struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
BUG_ON(capsnap->writing);
capsnap->size = inode->i_size;
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index 7ec0e6d03d10..2516304379d3 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -1205,14 +1205,13 @@ nomem:
static void ceph_kill_sb(struct super_block *s)
{
struct ceph_fs_client *fsc = ceph_sb_to_client(s);
- dev_t dev = s->s_dev;
dout("kill_sb %p\n", s);
ceph_mdsc_pre_umount(fsc->mdsc);
flush_fs_workqueues(fsc);
- generic_shutdown_super(s);
+ kill_anon_super(s);
fsc->client->extra_mon_dispatch = NULL;
ceph_fs_debugfs_cleanup(fsc);
@@ -1220,7 +1219,6 @@ static void ceph_kill_sb(struct super_block *s)
ceph_fscache_unregister_fs(fsc);
destroy_fs_client(fsc);
- free_anon_bdev(dev);
}
static struct file_system_type ceph_fs_type = {
@@ -1243,13 +1241,13 @@ int ceph_force_reconnect(struct super_block *sb)
* see remove_session_caps_cb() */
flush_workqueue(fsc->inode_wq);
- /* In case that we were blacklisted. This also reset
+ /* In case that we were blocklisted. This also reset
* all mon/osd connections */
ceph_reset_client_addr(fsc->client);
ceph_osdc_clear_abort_err(&fsc->client->osdc);
- fsc->blacklisted = false;
+ fsc->blocklisted = false;
fsc->mount_state = CEPH_MOUNT_MOUNTED;
if (sb->s_root) {
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 4c3c964b1c54..482473e4cce1 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -32,7 +32,7 @@
#define CEPH_BLOCK_SHIFT 22 /* 4 MB */
#define CEPH_BLOCK (1 << CEPH_BLOCK_SHIFT)
-#define CEPH_MOUNT_OPT_CLEANRECOVER (1<<1) /* auto reonnect (clean mode) after blacklisted */
+#define CEPH_MOUNT_OPT_CLEANRECOVER (1<<1) /* auto reonnect (clean mode) after blocklisted */
#define CEPH_MOUNT_OPT_DIRSTAT (1<<4) /* `cat dirname` for stats */
#define CEPH_MOUNT_OPT_RBYTES (1<<5) /* dir st_bytes = rbytes */
#define CEPH_MOUNT_OPT_NOASYNCREADDIR (1<<7) /* no dcache readdir */
@@ -109,7 +109,7 @@ struct ceph_fs_client {
unsigned long mount_state;
unsigned long last_auto_reconnect;
- bool blacklisted;
+ bool blocklisted;
bool have_copy_from2;
@@ -160,7 +160,8 @@ struct ceph_cap {
int issued; /* latest, from the mds */
int implemented; /* implemented superset of
issued (for revocation) */
- int mds, mds_wanted;
+ int mds; /* mds index for this cap */
+ int mds_wanted; /* caps wanted from this mds */
};
/* caps to release */
struct {
@@ -451,21 +452,19 @@ ceph_sb_to_client(const struct super_block *sb)
return (struct ceph_fs_client *)sb->s_fs_info;
}
+static inline struct ceph_mds_client *
+ceph_sb_to_mdsc(const struct super_block *sb)
+{
+ return (struct ceph_mds_client *)ceph_sb_to_client(sb)->mdsc;
+}
+
static inline struct ceph_vino
ceph_vino(const struct inode *inode)
{
return ceph_inode(inode)->i_vino;
}
-/*
- * ino_t is <64 bits on many architectures, blech.
- *
- * i_ino (kernel inode) st_ino (userspace)
- * i386 32 32
- * x86_64+ino32 64 32
- * x86_64 64 64
- */
-static inline u32 ceph_ino_to_ino32(__u64 vino)
+static inline u32 ceph_ino_to_ino32(u64 vino)
{
u32 ino = vino & 0xffffffff;
ino ^= vino >> 32;
@@ -475,35 +474,18 @@ static inline u32 ceph_ino_to_ino32(__u64 vino)
}
/*
- * kernel i_ino value
+ * Inode numbers in cephfs are 64 bits, but inode->i_ino is 32-bits on
+ * some arches. We generally do not use this value inside the ceph driver, but
+ * we do want to set it to something, so that generic vfs code has an
+ * appropriate value for tracepoints and the like.
*/
-static inline ino_t ceph_vino_to_ino(struct ceph_vino vino)
+static inline ino_t ceph_vino_to_ino_t(struct ceph_vino vino)
{
-#if BITS_PER_LONG == 32
- return ceph_ino_to_ino32(vino.ino);
-#else
+ if (sizeof(ino_t) == sizeof(u32))
+ return ceph_ino_to_ino32(vino.ino);
return (ino_t)vino.ino;
-#endif
}
-/*
- * user-visible ino (stat, filldir)
- */
-#if BITS_PER_LONG == 32
-static inline ino_t ceph_translate_ino(struct super_block *sb, ino_t ino)
-{
- return ino;
-}
-#else
-static inline ino_t ceph_translate_ino(struct super_block *sb, ino_t ino)
-{
- if (ceph_test_mount_opt(ceph_sb_to_client(sb), INO32))
- ino = ceph_ino_to_ino32(ino);
- return ino;
-}
-#endif
-
-
/* for printf-style formatting */
#define ceph_vinop(i) ceph_inode(i)->i_vino.ino, ceph_inode(i)->i_vino.snap
@@ -511,11 +493,34 @@ static inline u64 ceph_ino(struct inode *inode)
{
return ceph_inode(inode)->i_vino.ino;
}
+
static inline u64 ceph_snap(struct inode *inode)
{
return ceph_inode(inode)->i_vino.snap;
}
+/**
+ * ceph_present_ino - format an inode number for presentation to userland
+ * @sb: superblock where the inode lives
+ * @ino: inode number to (possibly) convert
+ *
+ * If the user mounted with the ino32 option, then the 64-bit value needs
+ * to be converted to something that can fit inside 32 bits. Note that
+ * internal kernel code never uses this value, so this is entirely for
+ * userland consumption.
+ */
+static inline u64 ceph_present_ino(struct super_block *sb, u64 ino)
+{
+ if (unlikely(ceph_test_mount_opt(ceph_sb_to_client(sb), INO32)))
+ return ceph_ino_to_ino32(ino);
+ return ino;
+}
+
+static inline u64 ceph_present_inode(struct inode *inode)
+{
+ return ceph_present_ino(inode->i_sb, ceph_ino(inode));
+}
+
static inline int ceph_ino_compare(struct inode *inode, void *data)
{
struct ceph_vino *pvino = (struct ceph_vino *)data;
@@ -524,11 +529,16 @@ static inline int ceph_ino_compare(struct inode *inode, void *data)
ci->i_vino.snap == pvino->snap;
}
+
static inline struct inode *ceph_find_inode(struct super_block *sb,
struct ceph_vino vino)
{
- ino_t t = ceph_vino_to_ino(vino);
- return ilookup5(sb, t, ceph_ino_compare, &vino);
+ /*
+ * NB: The hashval will be run through the fs/inode.c hash function
+ * anyway, so there is no need to squash the inode number down to
+ * 32-bits first. Just use low-order bits on arches with 32-bit long.
+ */
+ return ilookup5(sb, (unsigned long)vino.ino, ceph_ino_compare, &vino);
}
diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c
index 3a733ac33d9b..197cb1234341 100644
--- a/fs/ceph/xattr.c
+++ b/fs/ceph/xattr.c
@@ -116,7 +116,8 @@ static ssize_t ceph_vxattrcb_layout(struct ceph_inode_info *ci, char *val,
* NULL terminates however, so call it on a temporary buffer and then memcpy
* the result into place.
*/
-static int ceph_fmt_xattr(char *val, size_t size, const char *fmt, ...)
+static __printf(3, 4)
+int ceph_fmt_xattr(char *val, size_t size, const char *fmt, ...)
{
int ret;
va_list args;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.