From afcff5d80a4106e732d903640161d23950eb8e3b Mon Sep 17 00:00:00 2001 From: Lukas Czerner Date: Wed, 21 Mar 2012 21:47:55 -0400 Subject: [PATCH] ext4: remove restrictive checks for EOFBLOCKS_FL We are going to remove the EOFBLOCKS_FL flag in the future, so this is the first part of the removal. We can not remove it entirely just now, since the e2fsck is still checking for it and it might cause headache to some people. Instead, remove the restrictive checks now and the rest later, when the new e2fsck code is out and common enough. This is also needed because punch hole already breaks the EOFBLOCKS_FL semantics, so it might cause the some troubles. So simply remove it. Signed-off-by: Lukas Czerner Signed-off-by: "Theodore Ts'o" --- fs/ext4/extents.c | 13 ++++++++----- fs/ext4/inode.c | 6 ++---- 2 files changed, 10 insertions(+), 9 deletions(-) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index d075f34f9bae..1421938e6792 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -3293,11 +3293,13 @@ static int check_eofblocks_fl(handle_t *handle, struct inode *inode, depth = ext_depth(inode); eh = path[depth].p_hdr; - if (unlikely(!eh->eh_entries)) { - EXT4_ERROR_INODE(inode, "eh->eh_entries == 0 and " - "EOFBLOCKS_FL set"); - return -EIO; - } + /* + * We're going to remove EOFBLOCKS_FL entirely in future so we + * do not care for this case anymore. Simply remove the flag + * if there are no extents. + */ + if (unlikely(!eh->eh_entries)) + goto out; last_ex = EXT_LAST_EXTENT(eh); /* * We should clear the EOFBLOCKS_FL flag if we are writing the @@ -3321,6 +3323,7 @@ static int check_eofblocks_fl(handle_t *handle, struct inode *inode, for (i = depth-1; i >= 0; i--) if (path[i].p_idx != EXT_LAST_INDEX(path[i].p_hdr)) return 0; +out: ext4_clear_inode_flag(inode, EXT4_INODE_EOFBLOCKS); return ext4_mark_inode_dirty(handle, inode); } diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 83a2daeb813c..27ee10d66fcd 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4163,11 +4163,9 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr) } if (attr->ia_valid & ATTR_SIZE) { - if (attr->ia_size != i_size_read(inode)) { + if (attr->ia_size != i_size_read(inode)) truncate_setsize(inode, attr->ia_size); - ext4_truncate(inode); - } else if (ext4_test_inode_flag(inode, EXT4_INODE_EOFBLOCKS)) - ext4_truncate(inode); + ext4_truncate(inode); } if (!rc) {