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Message-Id: <1365506687-9216-1-git-send-email-lczerner@redhat.com>
Date: Tue, 9 Apr 2013 13:24:46 +0200
From: Lukas Czerner <lczerner@...hat.com>
To: linux-ext4@...r.kernel.org
Cc: gnehzuil.liu@...il.com, Lukas Czerner <lczerner@...hat.com>
Subject: [PATCH 1/2 v2] ext4: move ext4_ind_migrate() into migrate.c
Move ext4_ind_migrate() into migrate.c file since it makes much more
sense and ext4_ext_migrate() is there as well.
Also fix tiny style problem - add spaces around "=" in "i=0".
Signed-off-by: Lukas Czerner <lczerner@...hat.com>
---
v2: added to the series
fs/ext4/ext4.h | 2 +-
fs/ext4/extents.c | 59 ----------------------------------------------------
fs/ext4/migrate.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++-
3 files changed, 60 insertions(+), 61 deletions(-)
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index a0637e5..bb56920 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -2131,6 +2131,7 @@ extern long ext4_compat_ioctl(struct file *, unsigned int, unsigned long);
/* migrate.c */
extern int ext4_ext_migrate(struct inode *);
+extern int ext4_ind_migrate(struct inode *inode);
/* namei.c */
extern int ext4_dirent_csum_verify(struct inode *inode,
@@ -2620,7 +2621,6 @@ extern int ext4_find_delalloc_range(struct inode *inode,
extern int ext4_find_delalloc_cluster(struct inode *inode, ext4_lblk_t lblk);
extern int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
__u64 start, __u64 len);
-extern int ext4_ind_migrate(struct inode *inode);
/* move_extent.c */
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 6c5a70a..3645357 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4715,62 +4715,3 @@ int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
return error;
}
-
-/*
- * Migrate a simple extent-based inode to use the i_blocks[] array
- */
-int ext4_ind_migrate(struct inode *inode)
-{
- struct ext4_extent_header *eh;
- struct ext4_super_block *es = EXT4_SB(inode->i_sb)->s_es;
- struct ext4_inode_info *ei = EXT4_I(inode);
- struct ext4_extent *ex;
- unsigned int i, len;
- ext4_fsblk_t blk;
- handle_t *handle;
- int ret;
-
- if (!EXT4_HAS_INCOMPAT_FEATURE(inode->i_sb,
- EXT4_FEATURE_INCOMPAT_EXTENTS) ||
- (!ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)))
- return -EINVAL;
-
- down_write(&EXT4_I(inode)->i_data_sem);
- ret = ext4_ext_check_inode(inode);
- if (ret)
- goto errout;
-
- eh = ext_inode_hdr(inode);
- ex = EXT_FIRST_EXTENT(eh);
- if (ext4_blocks_count(es) > EXT4_MAX_BLOCK_FILE_PHYS ||
- eh->eh_depth != 0 || eh->eh_entries > 1) {
- ret = -EOPNOTSUPP;
- goto errout;
- }
- if (eh->eh_entries == 0)
- blk = len = 0;
- else {
- len = le16_to_cpu(ex->ee_len);
- blk = ext4_ext_pblock(ex);
- if (len > EXT4_NDIR_BLOCKS) {
- ret = -EOPNOTSUPP;
- goto errout;
- }
- }
-
- handle = ext4_journal_start(inode, EXT4_HT_MIGRATE, 1);
- if (IS_ERR(handle)) {
- ret = PTR_ERR(handle);
- goto errout;
- }
-
- ext4_clear_inode_flag(inode, EXT4_INODE_EXTENTS);
- memset(ei->i_data, 0, sizeof(ei->i_data));
- for (i=0; i < len; i++)
- ei->i_data[i] = cpu_to_le32(blk++);
- ext4_mark_inode_dirty(handle, inode);
- ext4_journal_stop(handle);
-errout:
- up_write(&EXT4_I(inode)->i_data_sem);
- return ret;
-}
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index 480acf4..3464604 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -426,7 +426,6 @@ static int free_ext_block(handle_t *handle, struct inode *inode)
return retval;
}
return retval;
-
}
int ext4_ext_migrate(struct inode *inode)
@@ -606,3 +605,62 @@ out:
return retval;
}
+
+/*
+ * Migrate a simple extent-based inode to use the i_blocks[] array
+ */
+int ext4_ind_migrate(struct inode *inode)
+{
+ struct ext4_extent_header *eh;
+ struct ext4_super_block *es = EXT4_SB(inode->i_sb)->s_es;
+ struct ext4_inode_info *ei = EXT4_I(inode);
+ struct ext4_extent *ex;
+ unsigned int i, len;
+ ext4_fsblk_t blk;
+ handle_t *handle;
+ int ret;
+
+ if (!EXT4_HAS_INCOMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_INCOMPAT_EXTENTS) ||
+ (!ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)))
+ return -EINVAL;
+
+ down_write(&EXT4_I(inode)->i_data_sem);
+ ret = ext4_ext_check_inode(inode);
+ if (ret)
+ goto errout;
+
+ eh = ext_inode_hdr(inode);
+ ex = EXT_FIRST_EXTENT(eh);
+ if (ext4_blocks_count(es) > EXT4_MAX_BLOCK_FILE_PHYS ||
+ eh->eh_depth != 0 || eh->eh_entries > 1) {
+ ret = -EOPNOTSUPP;
+ goto errout;
+ }
+ if (eh->eh_entries == 0)
+ blk = len = 0;
+ else {
+ len = le16_to_cpu(ex->ee_len);
+ blk = ext4_ext_pblock(ex);
+ if (len > EXT4_NDIR_BLOCKS) {
+ ret = -EOPNOTSUPP;
+ goto errout;
+ }
+ }
+
+ handle = ext4_journal_start(inode, EXT4_HT_MIGRATE, 1);
+ if (IS_ERR(handle)) {
+ ret = PTR_ERR(handle);
+ goto errout;
+ }
+
+ ext4_clear_inode_flag(inode, EXT4_INODE_EXTENTS);
+ memset(ei->i_data, 0, sizeof(ei->i_data));
+ for (i = 0; i < len; i++)
+ ei->i_data[i] = cpu_to_le32(blk++);
+ ext4_mark_inode_dirty(handle, inode);
+ ext4_journal_stop(handle);
+errout:
+ up_write(&EXT4_I(inode)->i_data_sem);
+ return ret;
+}
--
1.7.7.6
--
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