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-rw-r--r--fs/ext4/Makefile3
-rw-r--r--fs/ext4/ext4_jbd2.c59
-rw-r--r--include/linux/ext4_jbd2.h76
3 files changed, 78 insertions, 60 deletions
diff --git a/fs/ext4/Makefile b/fs/ext4/Makefile
index a6acb96ebeb9..ae6e7e502ac9 100644
--- a/fs/ext4/Makefile
+++ b/fs/ext4/Makefile
@@ -5,7 +5,8 @@
5obj-$(CONFIG_EXT4DEV_FS) += ext4dev.o 5obj-$(CONFIG_EXT4DEV_FS) += ext4dev.o
6 6
7ext4dev-y := balloc.o bitmap.o dir.o file.o fsync.o ialloc.o inode.o \ 7ext4dev-y := balloc.o bitmap.o dir.o file.o fsync.o ialloc.o inode.o \
8 ioctl.o namei.o super.o symlink.o hash.o resize.o extents.o 8 ioctl.o namei.o super.o symlink.o hash.o resize.o extents.o \
9 ext4_jbd2.o
9 10
10ext4dev-$(CONFIG_EXT4DEV_FS_XATTR) += xattr.o xattr_user.o xattr_trusted.o 11ext4dev-$(CONFIG_EXT4DEV_FS_XATTR) += xattr.o xattr_user.o xattr_trusted.o
11ext4dev-$(CONFIG_EXT4DEV_FS_POSIX_ACL) += acl.o 12ext4dev-$(CONFIG_EXT4DEV_FS_POSIX_ACL) += acl.o
diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c
new file mode 100644
index 000000000000..d6afe4e27340
--- /dev/null
+++ b/fs/ext4/ext4_jbd2.c
@@ -0,0 +1,59 @@
1/*
2 * Interface between ext4 and JBD
3 */
4
5#include <linux/ext4_jbd2.h>
6
7int __ext4_journal_get_undo_access(const char *where, handle_t *handle,
8 struct buffer_head *bh)
9{
10 int err = jbd2_journal_get_undo_access(handle, bh);
11 if (err)
12 ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
13 return err;
14}
15
16int __ext4_journal_get_write_access(const char *where, handle_t *handle,
17 struct buffer_head *bh)
18{
19 int err = jbd2_journal_get_write_access(handle, bh);
20 if (err)
21 ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
22 return err;
23}
24
25int __ext4_journal_forget(const char *where, handle_t *handle,
26 struct buffer_head *bh)
27{
28 int err = jbd2_journal_forget(handle, bh);
29 if (err)
30 ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
31 return err;
32}
33
34int __ext4_journal_revoke(const char *where, handle_t *handle,
35 ext4_fsblk_t blocknr, struct buffer_head *bh)
36{
37 int err = jbd2_journal_revoke(handle, blocknr, bh);
38 if (err)
39 ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
40 return err;
41}
42
43int __ext4_journal_get_create_access(const char *where,
44 handle_t *handle, struct buffer_head *bh)
45{
46 int err = jbd2_journal_get_create_access(handle, bh);
47 if (err)
48 ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
49 return err;
50}
51
52int __ext4_journal_dirty_metadata(const char *where,
53 handle_t *handle, struct buffer_head *bh)
54{
55 int err = jbd2_journal_dirty_metadata(handle, bh);
56 if (err)
57 ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
58 return err;
59}
diff --git a/include/linux/ext4_jbd2.h b/include/linux/ext4_jbd2.h
index 72dd631912e4..d716e6392cf6 100644
--- a/include/linux/ext4_jbd2.h
+++ b/include/linux/ext4_jbd2.h
@@ -114,74 +114,32 @@ int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode);
114 * been done yet. 114 * been done yet.
115 */ 115 */
116 116
117void ext4_journal_abort_handle(const char *caller, const char *err_fn, 117static inline void ext4_journal_release_buffer(handle_t *handle,
118 struct buffer_head *bh, handle_t *handle, int err); 118 struct buffer_head *bh)
119
120static inline int
121__ext4_journal_get_undo_access(const char *where, handle_t *handle,
122 struct buffer_head *bh)
123{ 119{
124 int err = jbd2_journal_get_undo_access(handle, bh); 120 jbd2_journal_release_buffer(handle, bh);
125 if (err)
126 ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
127 return err;
128} 121}
129 122
130static inline int 123void ext4_journal_abort_handle(const char *caller, const char *err_fn,
131__ext4_journal_get_write_access(const char *where, handle_t *handle, 124 struct buffer_head *bh, handle_t *handle, int err);
132 struct buffer_head *bh)
133{
134 int err = jbd2_journal_get_write_access(handle, bh);
135 if (err)
136 ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
137 return err;
138}
139 125
140static inline void 126int __ext4_journal_get_undo_access(const char *where, handle_t *handle,
141ext4_journal_release_buffer(handle_t *handle, struct buffer_head *bh) 127 struct buffer_head *bh);
142{
143 jbd2_journal_release_buffer(handle, bh);
144}
145 128
146static inline int 129int __ext4_journal_get_write_access(const char *where, handle_t *handle,
147__ext4_journal_forget(const char *where, handle_t *handle, struct buffer_head *bh) 130 struct buffer_head *bh);
148{
149 int err = jbd2_journal_forget(handle, bh);
150 if (err)
151 ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
152 return err;
153}
154 131
155static inline int 132int __ext4_journal_forget(const char *where, handle_t *handle,
156__ext4_journal_revoke(const char *where, handle_t *handle, 133 struct buffer_head *bh);
157 ext4_fsblk_t blocknr, struct buffer_head *bh)
158{
159 int err = jbd2_journal_revoke(handle, blocknr, bh);
160 if (err)
161 ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
162 return err;
163}
164 134
165static inline int 135int __ext4_journal_revoke(const char *where, handle_t *handle,
166__ext4_journal_get_create_access(const char *where, 136 ext4_fsblk_t blocknr, struct buffer_head *bh);
167 handle_t *handle, struct buffer_head *bh)
168{
169 int err = jbd2_journal_get_create_access(handle, bh);
170 if (err)
171 ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
172 return err;
173}
174 137
175static inline int 138int __ext4_journal_get_create_access(const char *where,
176__ext4_journal_dirty_metadata(const char *where, 139 handle_t *handle, struct buffer_head *bh);
177 handle_t *handle, struct buffer_head *bh)
178{
179 int err = jbd2_journal_dirty_metadata(handle, bh);
180 if (err)
181 ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
182 return err;
183}
184 140
141int __ext4_journal_dirty_metadata(const char *where,
142 handle_t *handle, struct buffer_head *bh);
185 143
186#define ext4_journal_get_undo_access(handle, bh) \ 144#define ext4_journal_get_undo_access(handle, bh) \
187 __ext4_journal_get_undo_access(__FUNCTION__, (handle), (bh)) 145 __ext4_journal_get_undo_access(__FUNCTION__, (handle), (bh))