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Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

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* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix data corruption regression by reverting commit 6de9843dab
  ext4: Allow indirect-block file to grow the file size to max file size
  ext4: allow an active handle to be started when freezing
  ext4: sync the directory inode in ext4_sync_parent()
  ext4: init timer earlier to avoid a kernel panic in __save_error_info
  jbd2: fix potential memory leak on transaction commit
  ext4: fix a double free in ext4_register_li_request
  ext4: fix credits computing for indirect mapped files
  ext4: remove unnecessary [cm]time update of quota file
  jbd2: move bdget out of critical section
This commit is contained in:
Linus Torvalds
2011-04-11 15:45:47 -07:00
parent 18770c7c3a c820563602
commit a97b52022a
6 changed files with 102 additions and 35 deletions
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35
fs/ext4/inode.c
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@@ -2502,6 +2502,7 @@ static int ext4_da_get_block_prep(struct inode *inode, sector_t iblock,
* for partial write.
*/
set_buffer_new(bh);
set_buffer_mapped(bh);
}
return 0;
}
@@ -4429,8 +4430,8 @@ void ext4_truncate(struct inode *inode)
Indirect chain[4];
Indirect *partial;
__le32 nr = 0;
int n;
ext4_lblk_t last_block;
int n = 0;
ext4_lblk_t last_block, max_block;
unsigned blocksize = inode->i_sb->s_blocksize;
trace_ext4_truncate_enter(inode);
@@ -4455,14 +4456,18 @@ void ext4_truncate(struct inode *inode)
last_block = (inode->i_size + blocksize-1)
>> EXT4_BLOCK_SIZE_BITS(inode->i_sb);
max_block = (EXT4_SB(inode->i_sb)->s_bitmap_maxbytes + blocksize-1)
>> EXT4_BLOCK_SIZE_BITS(inode->i_sb);
if (inode->i_size & (blocksize - 1))
if (ext4_block_truncate_page(handle, mapping, inode->i_size))
goto out_stop;
n = ext4_block_to_path(inode, last_block, offsets, NULL);
if (n == 0)
goto out_stop; /* error */
if (last_block != max_block) {
n = ext4_block_to_path(inode, last_block, offsets, NULL);
if (n == 0)
goto out_stop; /* error */
}
/*
* OK. This truncate is going to happen. We add the inode to the
@@ -4493,7 +4498,13 @@ void ext4_truncate(struct inode *inode)
*/
ei->i_disksize = inode->i_size;
if (n == 1) { /* direct blocks */
if (last_block == max_block) {
/*
* It is unnecessary to free any data blocks if last_block is
* equal to the indirect block limit.
*/
goto out_unlock;
} else if (n == 1) { /* direct blocks */
ext4_free_data(handle, inode, NULL, i_data+offsets[0],
i_data + EXT4_NDIR_BLOCKS);
goto do_indirects;
@@ -4553,6 +4564,7 @@ do_indirects:
;
}
out_unlock:
up_write(&ei->i_data_sem);
inode->i_mtime = inode->i_ctime = ext4_current_time(inode);
ext4_mark_inode_dirty(handle, inode);
@@ -5398,13 +5410,12 @@ static int ext4_indirect_trans_blocks(struct inode *inode, int nrblocks,
/* if nrblocks are contiguous */
if (chunk) {
/*
* With N contiguous data blocks, it need at most
* N/EXT4_ADDR_PER_BLOCK(inode->i_sb) indirect blocks
* 2 dindirect blocks
* 1 tindirect block
* With N contiguous data blocks, we need at most
* N/EXT4_ADDR_PER_BLOCK(inode->i_sb) + 1 indirect blocks,
* 2 dindirect blocks, and 1 tindirect block
*/
indirects = nrblocks / EXT4_ADDR_PER_BLOCK(inode->i_sb);
return indirects + 3;
return DIV_ROUND_UP(nrblocks,
EXT4_ADDR_PER_BLOCK(inode->i_sb)) + 4;
}
/*
* if nrblocks are not contiguous, worse case, each block touch