From c45ac8887e778c4fa2b572c51a94a681a0955d4d Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 17 Mar 2012 00:59:06 -0400 Subject: take private bits of reiserfs_xattr.h to fs/reiserfs/xattr.h Signed-off-by: Al Viro --- fs/reiserfs/file.c | 2 +- fs/reiserfs/inode.c | 2 +- fs/reiserfs/namei.c | 2 +- fs/reiserfs/super.c | 2 +- fs/reiserfs/xattr.c | 2 +- fs/reiserfs/xattr.h | 124 +++++++++++++++++++++++++++++++++++++++++++ fs/reiserfs/xattr_acl.c | 2 +- fs/reiserfs/xattr_security.c | 2 +- fs/reiserfs/xattr_trusted.c | 2 +- fs/reiserfs/xattr_user.c | 2 +- 10 files changed, 133 insertions(+), 9 deletions(-) create mode 100644 fs/reiserfs/xattr.h (limited to 'fs/reiserfs') diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c index ace635053a36..e26ee4988e78 100644 --- a/fs/reiserfs/file.c +++ b/fs/reiserfs/file.c @@ -5,7 +5,7 @@ #include #include #include -#include +#include "xattr.h" #include #include #include diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index 9e8cd5acd79c..894c7316e9c6 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c @@ -6,7 +6,7 @@ #include #include #include -#include +#include "xattr.h" #include #include #include diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c index 146378865239..cb67ebf882a9 100644 --- a/fs/reiserfs/namei.c +++ b/fs/reiserfs/namei.c @@ -16,7 +16,7 @@ #include #include #include -#include +#include "xattr.h" #include #define INC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) { inc_nlink(i); if (i->i_nlink >= REISERFS_LINK_MAX) set_nlink(i, 1); } diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index 208dfd144409..a67fc7d28de5 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -18,7 +18,7 @@ #include #include #include -#include +#include "xattr.h" #include #include #include diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c index c24deda8a8bc..ead5d8aab440 100644 --- a/fs/reiserfs/xattr.c +++ b/fs/reiserfs/xattr.c @@ -43,7 +43,7 @@ #include #include #include -#include +#include "xattr.h" #include #include #include diff --git a/fs/reiserfs/xattr.h b/fs/reiserfs/xattr.h new file mode 100644 index 000000000000..367c0459db6d --- /dev/null +++ b/fs/reiserfs/xattr.h @@ -0,0 +1,124 @@ +#include +#include +#include +#include +#include +#include + +struct inode; +struct dentry; +struct iattr; +struct super_block; +struct nameidata; + +int reiserfs_xattr_register_handlers(void) __init; +void reiserfs_xattr_unregister_handlers(void); +int reiserfs_xattr_init(struct super_block *sb, int mount_flags); +int reiserfs_lookup_privroot(struct super_block *sb); +int reiserfs_delete_xattrs(struct inode *inode); +int reiserfs_chown_xattrs(struct inode *inode, struct iattr *attrs); +int reiserfs_permission(struct inode *inode, int mask); + +#ifdef CONFIG_REISERFS_FS_XATTR +#define has_xattr_dir(inode) (REISERFS_I(inode)->i_flags & i_has_xattr_dir) +ssize_t reiserfs_getxattr(struct dentry *dentry, const char *name, + void *buffer, size_t size); +int reiserfs_setxattr(struct dentry *dentry, const char *name, + const void *value, size_t size, int flags); +ssize_t reiserfs_listxattr(struct dentry *dentry, char *buffer, size_t size); +int reiserfs_removexattr(struct dentry *dentry, const char *name); + +int reiserfs_xattr_get(struct inode *, const char *, void *, size_t); +int reiserfs_xattr_set(struct inode *, const char *, const void *, size_t, int); +int reiserfs_xattr_set_handle(struct reiserfs_transaction_handle *, + struct inode *, const char *, const void *, + size_t, int); + +extern const struct xattr_handler reiserfs_xattr_user_handler; +extern const struct xattr_handler reiserfs_xattr_trusted_handler; +extern const struct xattr_handler reiserfs_xattr_security_handler; +#ifdef CONFIG_REISERFS_FS_SECURITY +int reiserfs_security_init(struct inode *dir, struct inode *inode, + const struct qstr *qstr, + struct reiserfs_security_handle *sec); +int reiserfs_security_write(struct reiserfs_transaction_handle *th, + struct inode *inode, + struct reiserfs_security_handle *sec); +void reiserfs_security_free(struct reiserfs_security_handle *sec); +#endif + +static inline int reiserfs_xattrs_initialized(struct super_block *sb) +{ + return REISERFS_SB(sb)->priv_root != NULL; +} + +#define xattr_size(size) ((size) + sizeof(struct reiserfs_xattr_header)) +static inline loff_t reiserfs_xattr_nblocks(struct inode *inode, loff_t size) +{ + loff_t ret = 0; + if (reiserfs_file_data_log(inode)) { + ret = _ROUND_UP(xattr_size(size), inode->i_sb->s_blocksize); + ret >>= inode->i_sb->s_blocksize_bits; + } + return ret; +} + +/* We may have to create up to 3 objects: xattr root, xattr dir, xattr file. + * Let's try to be smart about it. + * xattr root: We cache it. If it's not cached, we may need to create it. + * xattr dir: If anything has been loaded for this inode, we can set a flag + * saying so. + * xattr file: Since we don't cache xattrs, we can't tell. We always include + * blocks for it. + * + * However, since root and dir can be created between calls - YOU MUST SAVE + * THIS VALUE. + */ +static inline size_t reiserfs_xattr_jcreate_nblocks(struct inode *inode) +{ + size_t nblocks = JOURNAL_BLOCKS_PER_OBJECT(inode->i_sb); + + if ((REISERFS_I(inode)->i_flags & i_has_xattr_dir) == 0) { + nblocks += JOURNAL_BLOCKS_PER_OBJECT(inode->i_sb); + if (!REISERFS_SB(inode->i_sb)->xattr_root->d_inode) + nblocks += JOURNAL_BLOCKS_PER_OBJECT(inode->i_sb); + } + + return nblocks; +} + +static inline void reiserfs_init_xattr_rwsem(struct inode *inode) +{ + init_rwsem(&REISERFS_I(inode)->i_xattr_sem); +} + +#else + +#define reiserfs_getxattr NULL +#define reiserfs_setxattr NULL +#define reiserfs_listxattr NULL +#define reiserfs_removexattr NULL + +static inline void reiserfs_init_xattr_rwsem(struct inode *inode) +{ +} +#endif /* CONFIG_REISERFS_FS_XATTR */ + +#ifndef CONFIG_REISERFS_FS_SECURITY +static inline int reiserfs_security_init(struct inode *dir, + struct inode *inode, + const struct qstr *qstr, + struct reiserfs_security_handle *sec) +{ + return 0; +} +static inline int +reiserfs_security_write(struct reiserfs_transaction_handle *th, + struct inode *inode, + struct reiserfs_security_handle *sec) +{ + return 0; +} +static inline void reiserfs_security_free(struct reiserfs_security_handle *sec) +{} +#endif diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c index 6da0396e5052..c0a8c519b2e1 100644 --- a/fs/reiserfs/xattr_acl.c +++ b/fs/reiserfs/xattr_acl.c @@ -7,7 +7,7 @@ #include #include #include -#include +#include "xattr.h" #include #include diff --git a/fs/reiserfs/xattr_security.c b/fs/reiserfs/xattr_security.c index 534668fa41be..6104066e44c4 100644 --- a/fs/reiserfs/xattr_security.c +++ b/fs/reiserfs/xattr_security.c @@ -4,7 +4,7 @@ #include #include #include -#include +#include "xattr.h" #include #include diff --git a/fs/reiserfs/xattr_trusted.c b/fs/reiserfs/xattr_trusted.c index 9883736ce3ec..f995b258c141 100644 --- a/fs/reiserfs/xattr_trusted.c +++ b/fs/reiserfs/xattr_trusted.c @@ -4,7 +4,7 @@ #include #include #include -#include +#include "xattr.h" #include static int diff --git a/fs/reiserfs/xattr_user.c b/fs/reiserfs/xattr_user.c index 45ae1a00013a..748978db6f03 100644 --- a/fs/reiserfs/xattr_user.c +++ b/fs/reiserfs/xattr_user.c @@ -3,7 +3,7 @@ #include #include #include -#include +#include "xattr.h" #include static int -- cgit v1.2.3