diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
---|---|---|
committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/fs/hfs/attr.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/fs/hfs/attr.c')
-rw-r--r-- | kernel/fs/hfs/attr.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/kernel/fs/hfs/attr.c b/kernel/fs/hfs/attr.c new file mode 100644 index 000000000..8d931b157 --- /dev/null +++ b/kernel/fs/hfs/attr.c @@ -0,0 +1,121 @@ +/* + * linux/fs/hfs/attr.c + * + * (C) 2003 Ardis Technologies <roman@ardistech.com> + * + * Export hfs data via xattr + */ + + +#include <linux/fs.h> +#include <linux/xattr.h> + +#include "hfs_fs.h" +#include "btree.h" + +int hfs_setxattr(struct dentry *dentry, const char *name, + const void *value, size_t size, int flags) +{ + struct inode *inode = d_inode(dentry); + struct hfs_find_data fd; + hfs_cat_rec rec; + struct hfs_cat_file *file; + int res; + + if (!S_ISREG(inode->i_mode) || HFS_IS_RSRC(inode)) + return -EOPNOTSUPP; + + res = hfs_find_init(HFS_SB(inode->i_sb)->cat_tree, &fd); + if (res) + return res; + fd.search_key->cat = HFS_I(inode)->cat_key; + res = hfs_brec_find(&fd); + if (res) + goto out; + hfs_bnode_read(fd.bnode, &rec, fd.entryoffset, + sizeof(struct hfs_cat_file)); + file = &rec.file; + + if (!strcmp(name, "hfs.type")) { + if (size == 4) + memcpy(&file->UsrWds.fdType, value, 4); + else + res = -ERANGE; + } else if (!strcmp(name, "hfs.creator")) { + if (size == 4) + memcpy(&file->UsrWds.fdCreator, value, 4); + else + res = -ERANGE; + } else + res = -EOPNOTSUPP; + if (!res) + hfs_bnode_write(fd.bnode, &rec, fd.entryoffset, + sizeof(struct hfs_cat_file)); +out: + hfs_find_exit(&fd); + return res; +} + +ssize_t hfs_getxattr(struct dentry *dentry, const char *name, + void *value, size_t size) +{ + struct inode *inode = d_inode(dentry); + struct hfs_find_data fd; + hfs_cat_rec rec; + struct hfs_cat_file *file; + ssize_t res = 0; + + if (!S_ISREG(inode->i_mode) || HFS_IS_RSRC(inode)) + return -EOPNOTSUPP; + + if (size) { + res = hfs_find_init(HFS_SB(inode->i_sb)->cat_tree, &fd); + if (res) + return res; + fd.search_key->cat = HFS_I(inode)->cat_key; + res = hfs_brec_find(&fd); + if (res) + goto out; + hfs_bnode_read(fd.bnode, &rec, fd.entryoffset, + sizeof(struct hfs_cat_file)); + } + file = &rec.file; + + if (!strcmp(name, "hfs.type")) { + if (size >= 4) { + memcpy(value, &file->UsrWds.fdType, 4); + res = 4; + } else + res = size ? -ERANGE : 4; + } else if (!strcmp(name, "hfs.creator")) { + if (size >= 4) { + memcpy(value, &file->UsrWds.fdCreator, 4); + res = 4; + } else + res = size ? -ERANGE : 4; + } else + res = -ENODATA; +out: + if (size) + hfs_find_exit(&fd); + return res; +} + +#define HFS_ATTRLIST_SIZE (sizeof("hfs.creator")+sizeof("hfs.type")) + +ssize_t hfs_listxattr(struct dentry *dentry, char *buffer, size_t size) +{ + struct inode *inode = d_inode(dentry); + + if (!S_ISREG(inode->i_mode) || HFS_IS_RSRC(inode)) + return -EOPNOTSUPP; + + if (!buffer || !size) + return HFS_ATTRLIST_SIZE; + if (size < HFS_ATTRLIST_SIZE) + return -ERANGE; + strcpy(buffer, "hfs.type"); + strcpy(buffer + sizeof("hfs.type"), "hfs.creator"); + + return HFS_ATTRLIST_SIZE; +} |