diff options
| -rw-r--r-- | fs/ceph/mds_client.c | 14 | ||||
| -rw-r--r-- | fs/ceph/mds_client.h | 4 | ||||
| -rw-r--r-- | fs/ceph/xattr.c | 49 |
3 files changed, 28 insertions, 39 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index b4430ce1b3f6..f8f774e6f868 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -543,6 +543,8 @@ void ceph_mdsc_release_request(struct kref *kref) } kfree(req->r_path1); kfree(req->r_path2); + if (req->r_pagelist) + ceph_pagelist_release(req->r_pagelist); put_request_session(req); ceph_unreserve_caps(req->r_mdsc, &req->r_caps_reservation); kfree(req); @@ -1916,13 +1918,15 @@ static struct ceph_msg *create_request_message(struct ceph_mds_client *mdsc, msg->front.iov_len = p - msg->front.iov_base; msg->hdr.front_len = cpu_to_le32(msg->front.iov_len); - if (req->r_data_len) { - /* outbound data set only by ceph_sync_setxattr() */ - BUG_ON(!req->r_pages); - ceph_msg_data_add_pages(msg, req->r_pages, req->r_data_len, 0); + if (req->r_pagelist) { + struct ceph_pagelist *pagelist = req->r_pagelist; + atomic_inc(&pagelist->refcnt); + ceph_msg_data_add_pagelist(msg, pagelist); + msg->hdr.data_len = cpu_to_le32(pagelist->length); + } else { + msg->hdr.data_len = 0; } - msg->hdr.data_len = cpu_to_le32(req->r_data_len); msg->hdr.data_off = cpu_to_le16(0); out_free2: diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h index e00737cf523c..23015f747061 100644 --- a/fs/ceph/mds_client.h +++ b/fs/ceph/mds_client.h @@ -202,9 +202,7 @@ struct ceph_mds_request { bool r_direct_is_hash; /* true if r_direct_hash is valid */ /* data payload is used for xattr ops */ - struct page **r_pages; - int r_num_pages; - int r_data_len; + struct ceph_pagelist *r_pagelist; /* what caps shall we drop? */ int r_inode_drop, r_inode_unless; diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c index 19da5026c38f..678b0d2bbbc4 100644 --- a/fs/ceph/xattr.c +++ b/fs/ceph/xattr.c @@ -1,4 +1,5 @@ #include <linux/ceph/ceph_debug.h> +#include <linux/ceph/pagelist.h> #include "super.h" #include "mds_client.h" @@ -850,35 +851,25 @@ static int ceph_sync_setxattr(struct dentry *dentry, const char *name, struct ceph_inode_info *ci = ceph_inode(inode); struct ceph_mds_request *req; struct ceph_mds_client *mdsc = fsc->mdsc; + struct ceph_pagelist *pagelist = NULL; int err; - int i, nr_pages; - struct page **pages = NULL; - void *kaddr; - - /* copy value into some pages */ - nr_pages = calc_pages_for(0, size); - if (nr_pages) { - pages = kmalloc(sizeof(pages[0])*nr_pages, GFP_NOFS); - if (!pages) + + if (value) { + /* copy value into pagelist */ + pagelist = kmalloc(sizeof(*pagelist), GFP_NOFS); + if (!pagelist) return -ENOMEM; - err = -ENOMEM; - for (i = 0; i < nr_pages; i++) { - pages[i] = __page_cache_alloc(GFP_NOFS); - if (!pages[i]) { - nr_pages = i; - goto out; - } - kaddr = kmap(pages[i]); - memcpy(kaddr, value + i*PAGE_CACHE_SIZE, - min(PAGE_CACHE_SIZE, size-i*PAGE_CACHE_SIZE)); - } + + ceph_pagelist_init(pagelist); + err = ceph_pagelist_append(pagelist, value, size); + if (err) + goto out; + } else { + flags |= CEPH_XATTR_REMOVE; } dout("setxattr value=%.*s\n", (int)size, value); - if (!value) - flags |= CEPH_XATTR_REMOVE; - /* do request */ req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_SETXATTR, USE_AUTH_MDS); @@ -893,9 +884,8 @@ static int ceph_sync_setxattr(struct dentry *dentry, const char *name, req->r_args.setxattr.flags = cpu_to_le32(flags); req->r_path2 = kstrdup(name, GFP_NOFS); - req->r_pages = pages; - req->r_num_pages = nr_pages; - req->r_data_len = size; + req->r_pagelist = pagelist; + pagelist = NULL; dout("xattr.ver (before): %lld\n", ci->i_xattrs.version); err = ceph_mdsc_do_request(mdsc, NULL, req); @@ -903,11 +893,8 @@ static int ceph_sync_setxattr(struct dentry *dentry, const char *name, dout("xattr.ver (after): %lld\n", ci->i_xattrs.version); out: - if (pages) { - for (i = 0; i < nr_pages; i++) - __free_page(pages[i]); - kfree(pages); - } + if (pagelist) + ceph_pagelist_release(pagelist); return err; } |