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-rw-r--r--fs/ext2/inode.c87
1 files changed, 42 insertions, 45 deletions
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index 3675088..940c961 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -69,26 +69,42 @@ static void ext2_write_failed(struct address_space *mapping, loff_t to)
/*
* Called at the last iput() if i_nlink is zero.
*/
-void ext2_delete_inode (struct inode * inode)
+void ext2_evict_inode(struct inode * inode)
{
- if (!is_bad_inode(inode))
+ struct ext2_block_alloc_info *rsv;
+ int want_delete = 0;
+
+ if (!inode->i_nlink && !is_bad_inode(inode)) {
+ want_delete = 1;
dquot_initialize(inode);
+ } else {
+ dquot_drop(inode);
+ }
+
truncate_inode_pages(&inode->i_data, 0);
- if (is_bad_inode(inode))
- goto no_delete;
- EXT2_I(inode)->i_dtime = get_seconds();
- mark_inode_dirty(inode);
- __ext2_write_inode(inode, inode_needs_sync(inode));
+ if (want_delete) {
+ /* set dtime */
+ EXT2_I(inode)->i_dtime = get_seconds();
+ mark_inode_dirty(inode);
+ __ext2_write_inode(inode, inode_needs_sync(inode));
+ /* truncate to 0 */
+ inode->i_size = 0;
+ if (inode->i_blocks)
+ ext2_truncate_blocks(inode, 0);
+ }
- inode->i_size = 0;
- if (inode->i_blocks)
- ext2_truncate_blocks(inode, 0);
- ext2_free_inode (inode);
+ invalidate_inode_buffers(inode);
+ end_writeback(inode);
- return;
-no_delete:
- clear_inode(inode); /* We must guarantee clearing of inode... */
+ ext2_discard_reservation(inode);
+ rsv = EXT2_I(inode)->i_block_alloc_info;
+ EXT2_I(inode)->i_block_alloc_info = NULL;
+ if (unlikely(rsv))
+ kfree(rsv);
+
+ if (want_delete)
+ ext2_free_inode(inode);
}
typedef struct {
@@ -423,6 +439,8 @@ static int ext2_alloc_blocks(struct inode *inode,
failed_out:
for (i = 0; i <index; i++)
ext2_free_blocks(inode, new_blocks[i], 1);
+ if (index)
+ mark_inode_dirty(inode);
return ret;
}
@@ -765,14 +783,6 @@ ext2_readpages(struct file *file, struct address_space *mapping,
return mpage_readpages(mapping, pages, nr_pages, ext2_get_block);
}
-int __ext2_write_begin(struct file *file, struct address_space *mapping,
- loff_t pos, unsigned len, unsigned flags,
- struct page **pagep, void **fsdata)
-{
- return block_write_begin_newtrunc(file, mapping, pos, len, flags,
- pagep, fsdata, ext2_get_block);
-}
-
static int
ext2_write_begin(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
@@ -780,8 +790,8 @@ ext2_write_begin(struct file *file, struct address_space *mapping,
{
int ret;
- *pagep = NULL;
- ret = __ext2_write_begin(file, mapping, pos, len, flags, pagep, fsdata);
+ ret = block_write_begin(mapping, pos, len, flags, pagep,
+ ext2_get_block);
if (ret < 0)
ext2_write_failed(mapping, pos + len);
return ret;
@@ -806,13 +816,8 @@ ext2_nobh_write_begin(struct file *file, struct address_space *mapping,
{
int ret;
- /*
- * Dir-in-pagecache still uses ext2_write_begin. Would have to rework
- * directory handling code to pass around offsets rather than struct
- * pages in order to make this work easily.
- */
- ret = nobh_write_begin_newtrunc(file, mapping, pos, len, flags, pagep,
- fsdata, ext2_get_block);
+ ret = nobh_write_begin(mapping, pos, len, flags, pagep, fsdata,
+ ext2_get_block);
if (ret < 0)
ext2_write_failed(mapping, pos + len);
return ret;
@@ -838,7 +843,7 @@ ext2_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov,
struct inode *inode = mapping->host;
ssize_t ret;
- ret = blockdev_direct_IO_newtrunc(rw, iocb, inode, inode->i_sb->s_bdev,
+ ret = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev,
iov, offset, nr_segs, ext2_get_block, NULL);
if (ret < 0 && (rw & WRITE))
ext2_write_failed(mapping, offset + iov_length(iov, nr_segs));
@@ -1006,8 +1011,8 @@ static inline void ext2_free_data(struct inode *inode, __le32 *p, __le32 *q)
else if (block_to_free == nr - count)
count++;
else {
- mark_inode_dirty(inode);
ext2_free_blocks (inode, block_to_free, count);
+ mark_inode_dirty(inode);
free_this:
block_to_free = nr;
count = 1;
@@ -1015,8 +1020,8 @@ static inline void ext2_free_data(struct inode *inode, __le32 *p, __le32 *q)
}
}
if (count > 0) {
- mark_inode_dirty(inode);
ext2_free_blocks (inode, block_to_free, count);
+ mark_inode_dirty(inode);
}
}
@@ -1169,15 +1174,10 @@ static void ext2_truncate_blocks(struct inode *inode, loff_t offset)
__ext2_truncate_blocks(inode, offset);
}
-int ext2_setsize(struct inode *inode, loff_t newsize)
+static int ext2_setsize(struct inode *inode, loff_t newsize)
{
- loff_t oldsize;
int error;
- error = inode_newsize_ok(inode, newsize);
- if (error)
- return error;
-
if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
S_ISLNK(inode->i_mode)))
return -EINVAL;
@@ -1197,10 +1197,7 @@ int ext2_setsize(struct inode *inode, loff_t newsize)
if (error)
return error;
- oldsize = inode->i_size;
- i_size_write(inode, newsize);
- truncate_pagecache(inode, oldsize, newsize);
-
+ truncate_setsize(inode, newsize);
__ext2_truncate_blocks(inode, newsize);
inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
@@ -1557,7 +1554,7 @@ int ext2_setattr(struct dentry *dentry, struct iattr *iattr)
if (error)
return error;
}
- generic_setattr(inode, iattr);
+ setattr_copy(inode, iattr);
if (iattr->ia_valid & ATTR_MODE)
error = ext2_acl_chmod(inode);
mark_inode_dirty(inode);