From aa98d7cf59b5b0764d3502662053489585faf2fe Mon Sep 17 00:00:00 2001 From: KaiGai Kohei Date: Sat, 13 May 2006 15:09:47 +0900 Subject: [JFFS2][XATTR] XATTR support on JFFS2 (version. 5) This attached patches provide xattr support including POSIX-ACL and SELinux support on JFFS2 (version.5). There are some significant differences from previous version posted at last December. The biggest change is addition of EBS(Erase Block Summary) support. Currently, both kernel and usermode utility (sumtool) can recognize xattr nodes which have JFFS2_NODETYPE_XATTR/_XREF nodetype. In addition, some bugs are fixed. - A potential race condition was fixed. - Unexpected fail when updating a xattr by same name/value pair was fixed. - A bug when removing xattr name/value pair was fixed. The fundamental structures (such as using two new nodetypes and exclusion mechanism by rwsem) are unchanged. But most of implementation were reviewed and updated if necessary. Espacially, we had to change several internal implementations related to load_xattr_datum() to avoid a potential race condition. [1/2] xattr_on_jffs2.kernel.version-5.patch [2/2] xattr_on_jffs2.utils.version-5.patch Signed-off-by: KaiGai Kohei Signed-off-by: David Woodhouse --- fs/jffs2/fs.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'fs/jffs2/fs.c') diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c index ea1f37d4fc58..4607cdc4c46d 100644 --- a/fs/jffs2/fs.c +++ b/fs/jffs2/fs.c @@ -185,7 +185,12 @@ static int jffs2_do_setattr (struct inode *inode, struct iattr *iattr) int jffs2_setattr(struct dentry *dentry, struct iattr *iattr) { - return jffs2_do_setattr(dentry->d_inode, iattr); + int rc; + + rc = jffs2_do_setattr(dentry->d_inode, iattr); + if (!rc && (iattr->ia_valid & ATTR_MODE)) + rc = jffs2_acl_chmod(dentry->d_inode); + return rc; } int jffs2_statfs(struct super_block *sb, struct kstatfs *buf) @@ -224,6 +229,7 @@ void jffs2_clear_inode (struct inode *inode) D1(printk(KERN_DEBUG "jffs2_clear_inode(): ino #%lu mode %o\n", inode->i_ino, inode->i_mode)); + jffs2_xattr_delete_inode(c, f->inocache); jffs2_do_clear_inode(c, f); } @@ -497,6 +503,8 @@ int jffs2_do_fill_super(struct super_block *sb, void *data, int silent) } memset(c->inocache_list, 0, INOCACHE_HASHSIZE * sizeof(struct jffs2_inode_cache *)); + jffs2_init_xattr_subsystem(c); + if ((ret = jffs2_do_mount_fs(c))) goto out_inohash; @@ -531,6 +539,7 @@ int jffs2_do_fill_super(struct super_block *sb, void *data, int silent) else kfree(c->blocks); out_inohash: + jffs2_clear_xattr_subsystem(c); kfree(c->inocache_list); out_wbuf: jffs2_flash_cleanup(c); -- cgit v1.2.3