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Message-Id: <1526350623-4616-2-git-send-email-jsimmons@infradead.org>
Date: Mon, 14 May 2018 22:16:59 -0400
From: James Simmons <jsimmons@...radead.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
devel@...verdev.osuosl.org,
Andreas Dilger <andreas.dilger@...el.com>,
Oleg Drokin <oleg.drokin@...el.com>, NeilBrown <neilb@...e.com>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Lustre Development List <lustre-devel@...ts.lustre.org>,
Dmitry Eremin <dmitry.eremin@...el.com>,
"John L. Hammond" <john.hammond@...el.com>,
James Simmons <uja.ornl@...oo.com>,
James Simmons <jsimmons@...radead.org>
Subject: [PATCH v2 1/5] staging: lustre: llite: add support set_acl method in inode operations
From: Dmitry Eremin <dmitry.eremin@...el.com>
Linux kernel v3.14 adds set_acl method to inode operations.
This patch adds support to Lustre for proper acl management.
Signed-off-by: Dmitry Eremin <dmitry.eremin@...el.com>
Signed-off-by: John L. Hammond <john.hammond@...el.com>
Signed-off-by: James Simmons <uja.ornl@...oo.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-9183
Reviewed-on: https://review.whamcloud.com/25965
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-10541
Reviewed-on: https://review.whamcloud.com/31588
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-10926
Reviewed-on: https://review.whamcloud.com/32045
Reviewed-by: Bob Glossman <bob.glossman@...el.com>
Reviewed-by: James Simmons <uja.ornl@...oo.com>
Reviewed-by: Andreas Dilger <andreas.dilger@...el.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@...el.com>
Reviewed-by: Oleg Drokin <oleg.drokin@...el.com>
Signed-off-by: James Simmons <jsimmons@...radead.org>
---
Changelog:
v1) Initial patch ported to staging tree
v2) Fixed up goto handling and avoid BUG() when calling
forget_cached_acl()with invalid type as pointed out by Dan Carpenter
drivers/staging/lustre/lustre/llite/file.c | 62 ++++++++++++++++++++++
.../staging/lustre/lustre/llite/llite_internal.h | 4 ++
drivers/staging/lustre/lustre/llite/namei.c | 10 +++-
3 files changed, 74 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c
index 0026fde..64a5698 100644
--- a/drivers/staging/lustre/lustre/llite/file.c
+++ b/drivers/staging/lustre/lustre/llite/file.c
@@ -3030,6 +3030,7 @@ static int ll_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
return rc;
}
+#ifdef CONFIG_FS_POSIX_ACL
struct posix_acl *ll_get_acl(struct inode *inode, int type)
{
struct ll_inode_info *lli = ll_i2info(inode);
@@ -3043,6 +3044,64 @@ struct posix_acl *ll_get_acl(struct inode *inode, int type)
return acl;
}
+int ll_set_acl(struct inode *inode, struct posix_acl *acl, int type)
+{
+ struct ll_sb_info *sbi = ll_i2sbi(inode);
+ struct ptlrpc_request *req = NULL;
+ const char *name = NULL;
+ size_t value_size = 0;
+ char *value = NULL;
+ int rc;
+
+ switch (type) {
+ case ACL_TYPE_ACCESS:
+ name = XATTR_NAME_POSIX_ACL_ACCESS;
+ if (acl)
+ rc = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+ break;
+
+ case ACL_TYPE_DEFAULT:
+ name = XATTR_NAME_POSIX_ACL_DEFAULT;
+ if (!S_ISDIR(inode->i_mode))
+ rc = acl ? -EACCES : 0;
+ break;
+
+ default:
+ rc = -EINVAL;
+ break;
+ }
+ if (rc)
+ return rc;
+
+ if (acl) {
+ value_size = posix_acl_xattr_size(acl->a_count);
+ value = kmalloc(value_size, GFP_NOFS);
+ if (!value) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ rc = posix_acl_to_xattr(&init_user_ns, acl, value, value_size);
+ if (rc < 0)
+ goto out_value;
+ }
+
+ rc = md_setxattr(sbi->ll_md_exp, ll_inode2fid(inode),
+ value ? OBD_MD_FLXATTR : OBD_MD_FLXATTRRM,
+ name, value, value_size, 0, 0, 0, &req);
+
+ ptlrpc_req_finished(req);
+out_value:
+ kfree(value);
+out:
+ if (rc)
+ forget_cached_acl(inode, type);
+ else
+ set_cached_acl(inode, type, acl);
+ return rc;
+}
+#endif /* CONFIG_FS_POSIX_ACL */
+
int ll_inode_permission(struct inode *inode, int mask)
{
struct ll_sb_info *sbi;
@@ -3164,7 +3223,10 @@ int ll_inode_permission(struct inode *inode, int mask)
.permission = ll_inode_permission,
.listxattr = ll_listxattr,
.fiemap = ll_fiemap,
+#ifdef CONFIG_FS_POSIX_ACL
.get_acl = ll_get_acl,
+ .set_acl = ll_set_acl,
+#endif
};
/* dynamic ioctl number support routines */
diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h
index 6504850..2280327 100644
--- a/drivers/staging/lustre/lustre/llite/llite_internal.h
+++ b/drivers/staging/lustre/lustre/llite/llite_internal.h
@@ -754,7 +754,11 @@ enum ldlm_mode ll_take_md_lock(struct inode *inode, __u64 bits,
int ll_md_real_close(struct inode *inode, fmode_t fmode);
int ll_getattr(const struct path *path, struct kstat *stat,
u32 request_mask, unsigned int flags);
+#ifdef CONFIG_FS_POSIX_ACL
struct posix_acl *ll_get_acl(struct inode *inode, int type);
+int ll_set_acl(struct inode *inode, struct posix_acl *acl, int type);
+#endif /* CONFIG_FS_POSIX_ACL */
+
int ll_migrate(struct inode *parent, struct file *file, int mdtidx,
const char *name, int namelen);
int ll_get_fid_by_name(struct inode *parent, const char *name,
diff --git a/drivers/staging/lustre/lustre/llite/namei.c b/drivers/staging/lustre/lustre/llite/namei.c
index 9ac7f09..b41f189 100644
--- a/drivers/staging/lustre/lustre/llite/namei.c
+++ b/drivers/staging/lustre/lustre/llite/namei.c
@@ -1195,7 +1195,10 @@ static int ll_rename(struct inode *src, struct dentry *src_dchild,
.getattr = ll_getattr,
.permission = ll_inode_permission,
.listxattr = ll_listxattr,
- .get_acl = ll_get_acl,
+#ifdef CONFIG_FS_POSIX_ACL
+ .get_acl = ll_get_acl,
+ .set_acl = ll_set_acl,
+#endif
};
const struct inode_operations ll_special_inode_operations = {
@@ -1203,5 +1206,8 @@ static int ll_rename(struct inode *src, struct dentry *src_dchild,
.getattr = ll_getattr,
.permission = ll_inode_permission,
.listxattr = ll_listxattr,
- .get_acl = ll_get_acl,
+#ifdef CONFIG_FS_POSIX_ACL
+ .get_acl = ll_get_acl,
+ .set_acl = ll_set_acl,
+#endif
};
--
1.8.3.1
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