From d0b2f91bede3bd5e3d24dd6803e56eee959c1797 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Thu, 20 Oct 2016 00:10:27 -0300 Subject: Linux-libre 4.8.2-gnu --- fs/ceph/xattr.c | 101 ++++++++++++++++++++++++++++++++++---------------------- 1 file changed, 61 insertions(+), 40 deletions(-) (limited to 'fs/ceph/xattr.c') diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c index 4870b29df..adc231892 100644 --- a/fs/ceph/xattr.c +++ b/fs/ceph/xattr.c @@ -57,81 +57,88 @@ struct ceph_vxattr { static bool ceph_vxattrcb_layout_exists(struct ceph_inode_info *ci) { - size_t s; - char *p = (char *)&ci->i_layout; - - for (s = 0; s < sizeof(ci->i_layout); s++, p++) - if (*p) - return true; - return false; + struct ceph_file_layout *fl = &ci->i_layout; + return (fl->stripe_unit > 0 || fl->stripe_count > 0 || + fl->object_size > 0 || fl->pool_id >= 0 || + rcu_dereference_raw(fl->pool_ns) != NULL); } static size_t ceph_vxattrcb_layout(struct ceph_inode_info *ci, char *val, size_t size) { - int ret; struct ceph_fs_client *fsc = ceph_sb_to_client(ci->vfs_inode.i_sb); struct ceph_osd_client *osdc = &fsc->client->osdc; - s64 pool = ceph_file_layout_pg_pool(ci->i_layout); + struct ceph_string *pool_ns; + s64 pool = ci->i_layout.pool_id; const char *pool_name; + const char *ns_field = " pool_namespace="; char buf[128]; + size_t len, total_len = 0; + int ret; + + pool_ns = ceph_try_get_string(ci->i_layout.pool_ns); dout("ceph_vxattrcb_layout %p\n", &ci->vfs_inode); down_read(&osdc->lock); pool_name = ceph_pg_pool_name_by_id(osdc->osdmap, pool); if (pool_name) { - size_t len = strlen(pool_name); - ret = snprintf(buf, sizeof(buf), - "stripe_unit=%lld stripe_count=%lld object_size=%lld pool=", - (unsigned long long)ceph_file_layout_su(ci->i_layout), - (unsigned long long)ceph_file_layout_stripe_count(ci->i_layout), - (unsigned long long)ceph_file_layout_object_size(ci->i_layout)); - if (!size) { - ret += len; - } else if (ret + len > size) { - ret = -ERANGE; - } else { - memcpy(val, buf, ret); + len = snprintf(buf, sizeof(buf), + "stripe_unit=%u stripe_count=%u object_size=%u pool=", + ci->i_layout.stripe_unit, ci->i_layout.stripe_count, + ci->i_layout.object_size); + total_len = len + strlen(pool_name); + } else { + len = snprintf(buf, sizeof(buf), + "stripe_unit=%u stripe_count=%u object_size=%u pool=%lld", + ci->i_layout.stripe_unit, ci->i_layout.stripe_count, + ci->i_layout.object_size, (unsigned long long)pool); + total_len = len; + } + + if (pool_ns) + total_len += strlen(ns_field) + pool_ns->len; + + if (!size) { + ret = total_len; + } else if (total_len > size) { + ret = -ERANGE; + } else { + memcpy(val, buf, len); + ret = len; + if (pool_name) { + len = strlen(pool_name); memcpy(val + ret, pool_name, len); ret += len; } - } else { - ret = snprintf(buf, sizeof(buf), - "stripe_unit=%lld stripe_count=%lld object_size=%lld pool=%lld", - (unsigned long long)ceph_file_layout_su(ci->i_layout), - (unsigned long long)ceph_file_layout_stripe_count(ci->i_layout), - (unsigned long long)ceph_file_layout_object_size(ci->i_layout), - (unsigned long long)pool); - if (size) { - if (ret <= size) - memcpy(val, buf, ret); - else - ret = -ERANGE; + if (pool_ns) { + len = strlen(ns_field); + memcpy(val + ret, ns_field, len); + ret += len; + memcpy(val + ret, pool_ns->str, pool_ns->len); + ret += pool_ns->len; } } up_read(&osdc->lock); + ceph_put_string(pool_ns); return ret; } static size_t ceph_vxattrcb_layout_stripe_unit(struct ceph_inode_info *ci, char *val, size_t size) { - return snprintf(val, size, "%lld", - (unsigned long long)ceph_file_layout_su(ci->i_layout)); + return snprintf(val, size, "%u", ci->i_layout.stripe_unit); } static size_t ceph_vxattrcb_layout_stripe_count(struct ceph_inode_info *ci, char *val, size_t size) { - return snprintf(val, size, "%lld", - (unsigned long long)ceph_file_layout_stripe_count(ci->i_layout)); + return snprintf(val, size, "%u", ci->i_layout.stripe_count); } static size_t ceph_vxattrcb_layout_object_size(struct ceph_inode_info *ci, char *val, size_t size) { - return snprintf(val, size, "%lld", - (unsigned long long)ceph_file_layout_object_size(ci->i_layout)); + return snprintf(val, size, "%u", ci->i_layout.object_size); } static size_t ceph_vxattrcb_layout_pool(struct ceph_inode_info *ci, @@ -140,7 +147,7 @@ static size_t ceph_vxattrcb_layout_pool(struct ceph_inode_info *ci, int ret; struct ceph_fs_client *fsc = ceph_sb_to_client(ci->vfs_inode.i_sb); struct ceph_osd_client *osdc = &fsc->client->osdc; - s64 pool = ceph_file_layout_pg_pool(ci->i_layout); + s64 pool = ci->i_layout.pool_id; const char *pool_name; down_read(&osdc->lock); @@ -153,6 +160,18 @@ static size_t ceph_vxattrcb_layout_pool(struct ceph_inode_info *ci, return ret; } +static size_t ceph_vxattrcb_layout_pool_namespace(struct ceph_inode_info *ci, + char *val, size_t size) +{ + int ret = 0; + struct ceph_string *ns = ceph_try_get_string(ci->i_layout.pool_ns); + if (ns) { + ret = snprintf(val, size, "%.*s", (int)ns->len, ns->str); + ceph_put_string(ns); + } + return ret; +} + /* directories */ static size_t ceph_vxattrcb_dir_entries(struct ceph_inode_info *ci, char *val, @@ -241,6 +260,7 @@ static struct ceph_vxattr ceph_dir_vxattrs[] = { XATTR_LAYOUT_FIELD(dir, layout, stripe_count), XATTR_LAYOUT_FIELD(dir, layout, object_size), XATTR_LAYOUT_FIELD(dir, layout, pool), + XATTR_LAYOUT_FIELD(dir, layout, pool_namespace), XATTR_NAME_CEPH(dir, entries), XATTR_NAME_CEPH(dir, files), XATTR_NAME_CEPH(dir, subdirs), @@ -268,6 +288,7 @@ static struct ceph_vxattr ceph_file_vxattrs[] = { XATTR_LAYOUT_FIELD(file, layout, stripe_count), XATTR_LAYOUT_FIELD(file, layout, object_size), XATTR_LAYOUT_FIELD(file, layout, pool), + XATTR_LAYOUT_FIELD(file, layout, pool_namespace), { .name = NULL, 0 } /* Required table terminator */ }; static size_t ceph_file_vxattrs_name_size; /* total size of all names */ -- cgit v1.2.3-54-g00ecf