This patch add project inode identifier. Project ID may be used as
auxiliary owner specifier in addition to standard uid/gid.
Signed-off-by: Dmitry Monakhov <dmonakhov@xxxxxxxxxx>
---
fs/Kconfig | 7 +++++++
include/linux/fs.h | 1 +
include/linux/xattr.h | 3 +++
3 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/fs/Kconfig b/fs/Kconfig
index c49e224..4250f0b 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -58,6 +58,13 @@ config FILE_LOCKING
This option enables standard file locking support, required
for filesystems like NFS and for the flock() system
call. Disabling this option saves about 11k.
+config PROJECT_ID
+ bool "Enable project inode identifier"
+ default y
+ help
+ This option enables project inode identifier. Project ID
+ may be used as auxiliary owner specifier in addition to
+ standard uid/gid.
source "fs/notify/Kconfig"
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 24dd5d5..cba9a65 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1611,6 +1611,7 @@ struct super_operations {
#endif
int (*bdev_try_to_free_page)(struct super_block*, struct page*, gfp_t);
int (*trim_fs) (struct super_block *, struct fstrim_range *);
+ u32 (*get_prjid)(const struct inode *inode);
};
/*
diff --git a/include/linux/xattr.h b/include/linux/xattr.h
index f1e5bde..2f64a1c 100644
--- a/include/linux/xattr.h
+++ b/include/linux/xattr.h
@@ -47,6 +47,9 @@
#define XATTR_CAPS_SUFFIX "capability"
#define XATTR_NAME_CAPS XATTR_SECURITY_PREFIX XATTR_CAPS_SUFFIX
+#define XATTR_PRJID "system.project_id"
+#define XATTR_PRJID_LEN (sizeof (XATTR_PRJID))
+
struct inode;
struct dentry;
--
1.6.5.2
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