From: Tao Ma <tm@tao.ma>
To: linux-ext4@vger.kernel.org
Cc: adilger@dilger.ca, tytso@mit.edu, linux-kernel@vger.kernel.org,
linux-fsdevel@vger.kernel.org
Subject: [PATCH V3 02/21] ext4: export inline xattr functions.
Date: Sun, 18 Dec 2011 22:24:19 +0800 [thread overview]
Message-ID: <1324218278-2460-2-git-send-email-tm@tao.ma> (raw)
In-Reply-To: <1324218278-2460-1-git-send-email-tm@tao.ma>
From: Tao Ma <boyu.mt@taobao.com>
Inline data needs some inline xattr functions, so export them
from fs/ext4/xattr.c so that inline.c can uses them.
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
---
fs/ext4/xattr.c | 39 +++++-------------------------------
fs/ext4/xattr.h | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 63 insertions(+), 33 deletions(-)
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 93a00d8..71ef45e 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -61,11 +61,6 @@
#include "xattr.h"
#include "acl.h"
-#define BHDR(bh) ((struct ext4_xattr_header *)((bh)->b_data))
-#define ENTRY(ptr) ((struct ext4_xattr_entry *)(ptr))
-#define BFIRST(bh) ENTRY(BHDR(bh)+1)
-#define IS_LAST_ENTRY(entry) (*(__u32 *)(entry) == 0)
-
#ifdef EXT4_XATTR_DEBUG
# define ea_idebug(inode, f...) do { \
printk(KERN_DEBUG "inode %s:%lu: ", \
@@ -255,7 +250,7 @@ cleanup:
return error;
}
-static int
+int
ext4_xattr_ibody_get(struct inode *inode, int name_index, const char *name,
void *buffer, size_t buffer_size)
{
@@ -522,21 +517,6 @@ static size_t ext4_xattr_free_space(struct ext4_xattr_entry *last,
return (*min_offs - ((void *)last - base) - sizeof(__u32));
}
-struct ext4_xattr_info {
- int name_index;
- const char *name;
- const void *value;
- size_t value_len;
-};
-
-struct ext4_xattr_search {
- struct ext4_xattr_entry *first;
- void *base;
- void *end;
- struct ext4_xattr_entry *here;
- int not_found;
-};
-
static int
ext4_xattr_set_entry(struct ext4_xattr_info *i, struct ext4_xattr_search *s)
{
@@ -890,14 +870,8 @@ bad_block:
#undef header
}
-struct ext4_xattr_ibody_find {
- struct ext4_xattr_search s;
- struct ext4_iloc iloc;
-};
-
-static int
-ext4_xattr_ibody_find(struct inode *inode, struct ext4_xattr_info *i,
- struct ext4_xattr_ibody_find *is)
+int ext4_xattr_ibody_find(struct inode *inode, struct ext4_xattr_info *i,
+ struct ext4_xattr_ibody_find *is)
{
struct ext4_xattr_ibody_header *header;
struct ext4_inode *raw_inode;
@@ -925,10 +899,9 @@ ext4_xattr_ibody_find(struct inode *inode, struct ext4_xattr_info *i,
return 0;
}
-static int
-ext4_xattr_ibody_set(handle_t *handle, struct inode *inode,
- struct ext4_xattr_info *i,
- struct ext4_xattr_ibody_find *is)
+int ext4_xattr_ibody_set(handle_t *handle, struct inode *inode,
+ struct ext4_xattr_info *i,
+ struct ext4_xattr_ibody_find *is)
{
struct ext4_xattr_ibody_header *header;
struct ext4_xattr_search *s = &is->s;
diff --git a/fs/ext4/xattr.h b/fs/ext4/xattr.h
index 25b7387..c4c015d 100644
--- a/fs/ext4/xattr.h
+++ b/fs/ext4/xattr.h
@@ -63,6 +63,32 @@ struct ext4_xattr_entry {
EXT4_I(inode)->i_extra_isize))
#define IFIRST(hdr) ((struct ext4_xattr_entry *)((hdr)+1))
+#define BHDR(bh) ((struct ext4_xattr_header *)((bh)->b_data))
+#define ENTRY(ptr) ((struct ext4_xattr_entry *)(ptr))
+#define BFIRST(bh) ENTRY(BHDR(bh)+1)
+#define IS_LAST_ENTRY(entry) (*(__u32 *)(entry) == 0)
+
+
+struct ext4_xattr_info {
+ int name_index;
+ const char *name;
+ const void *value;
+ size_t value_len;
+};
+
+struct ext4_xattr_search {
+ struct ext4_xattr_entry *first;
+ void *base;
+ void *end;
+ struct ext4_xattr_entry *here;
+ int not_found;
+};
+
+struct ext4_xattr_ibody_find {
+ struct ext4_xattr_search s;
+ struct ext4_iloc iloc;
+};
+
# ifdef CONFIG_EXT4_FS_XATTR
extern const struct xattr_handler ext4_xattr_user_handler;
@@ -88,6 +114,15 @@ extern void ext4_exit_xattr(void);
extern const struct xattr_handler *ext4_xattr_handlers[];
+extern int ext4_xattr_ibody_find(struct inode *inode, struct ext4_xattr_info *i,
+ struct ext4_xattr_ibody_find *is);
+extern int ext4_xattr_ibody_set(handle_t *handle, struct inode *inode,
+ struct ext4_xattr_info *i,
+ struct ext4_xattr_ibody_find *is);
+extern int ext4_xattr_ibody_get(struct inode *inode, int name_index,
+ const char *name,
+ void *buffer, size_t buffer_size);
+
# else /* CONFIG_EXT4_FS_XATTR */
static inline int
@@ -141,6 +176,28 @@ ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize,
#define ext4_xattr_handlers NULL
+static inline int
+ext4_xattr_ibody_find(struct inode *inode, struct ext4_xattr_info *i,
+ struct ext4_xattr_ibody_find *is)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int
+ext4_xattr_ibody_set(handle_t *handle, struct inode *inode,
+ struct ext4_xattr_info *i,
+ struct ext4_xattr_ibody_find *is)
+{
+ return -EOPNOTSUPP;
+}
+
+extern int ext4_xattr_ibody_get(struct inode *inode, int name_index,
+ const char *name,
+ void *buffer, size_t buffer_size)
+{
+ return -EOPNOTSUPP;
+}
+
# endif /* CONFIG_EXT4_FS_XATTR */
#ifdef CONFIG_EXT4_FS_SECURITY
--
1.7.0.4
next prev parent reply other threads:[~2011-12-18 14:24 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-18 14:20 [PATCH V3 00/21] ext4: Add inline data support Tao Ma
2011-12-18 14:24 ` [PATCH V3 01/21] ext4: Move extra inode read to a new function Tao Ma
2011-12-18 14:24 ` Tao Ma [this message]
2011-12-18 14:24 ` [PATCH V3 03/21] ext4: Add the basic function for inline data support Tao Ma
2011-12-18 14:24 ` [PATCH V3 04/21] ext4: Add read support for inline data Tao Ma
2011-12-18 14:24 ` [PATCH V3 05/21] ext4: Add normal write " Tao Ma
2011-12-18 14:24 ` [PATCH V3 06/21] ext4: Add journalled " Tao Ma
2011-12-18 14:24 ` [PATCH V3 07/21] ext4: Add delalloc " Tao Ma
2011-12-18 14:24 ` [PATCH V3 08/21] ext4: Create a new function ext4_init_new_dir Tao Ma
2011-12-18 14:24 ` [PATCH V3 09/21] ext4: Refactor __ext4_check_dir_entry to accepts start and size Tao Ma
2011-12-18 14:24 ` [PATCH V3 10/21] ext4: Create __ext4_insert_dentry for dir entry insertion Tao Ma
2011-12-18 14:24 ` [PATCH V3 11/21] ext4: let add_dir_entry handle inline data properly Tao Ma
2011-12-18 14:24 ` [PATCH V3 12/21] ext4: Let ext4_readdir handle inline data Tao Ma
2011-12-18 14:24 ` [PATCH V3 13/21] ext4: Create a new function search_dir Tao Ma
2011-12-18 14:24 ` [PATCH V3 14/21] ext4: let ext4_find_entry handle inline data Tao Ma
2011-12-18 14:24 ` [PATCH V3 15/21] ext4: make ext4_delete_entry generic Tao Ma
2011-12-18 14:24 ` [PATCH V3 16/21] ext4: let ext4_delete_entry handle inline data Tao Ma
2011-12-18 14:24 ` [PATCH V3 17/21] ext4: let empty_dir handle inline dir Tao Ma
2011-12-18 14:24 ` [PATCH V3 18/21] ext4: let ext4_rename " Tao Ma
2011-12-18 14:24 ` [PATCH V3 19/21] ext4: Let fiemap work with inline data Tao Ma
2011-12-18 14:24 ` [PATCH V3 20/21] ext4: Evict inline data out if we needs to strore xattr in inode Tao Ma
2011-12-18 14:24 ` [PATCH V3 21/21] ext4: Enable ext4 inline support Tao Ma
2011-12-19 8:32 ` [PATCH V3 01/21] ext4: Move extra inode read to a new function Andreas Dilger
2011-12-19 14:27 ` Tao Ma
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