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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-10 11:26:52 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-10 11:26:52 -0700
commit5f248c9c251c60af3403902b26e08de43964ea0b (patch)
tree6d3328e72a7e4015a64017eb30be18095c6a3c64 /fs/ecryptfs
parentf6cec0ae58c17522a7bc4e2f39dae19f199ab534 (diff)
parentdca332528bc69e05f67161e1ed59929633d5e63d (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (96 commits) no need for list_for_each_entry_safe()/resetting with superblock list Fix sget() race with failing mount vfs: don't hold s_umount over close_bdev_exclusive() call sysv: do not mark superblock dirty on remount sysv: do not mark superblock dirty on mount btrfs: remove junk sb_dirt change BFS: clean up the superblock usage AFFS: wait for sb synchronization when needed AFFS: clean up dirty flag usage cifs: truncate fallout mbcache: fix shrinker function return value mbcache: Remove unused features add f_flags to struct statfs(64) pass a struct path to vfs_statfs update VFS documentation for method changes. All filesystems that need invalidate_inode_buffers() are doing that explicitly convert remaining ->clear_inode() to ->evict_inode() Make ->drop_inode() just return whether inode needs to be dropped fs/inode.c:clear_inode() is gone fs/inode.c:evict() doesn't care about delete vs. non-delete paths now ... Fix up trivial conflicts in fs/nilfs2/super.c
Diffstat (limited to 'fs/ecryptfs')
-rw-r--r--fs/ecryptfs/inode.c18
-rw-r--r--fs/ecryptfs/super.c14
2 files changed, 24 insertions, 8 deletions
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 31ef5252f0f..82900b063b1 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -804,10 +804,20 @@ static int truncate_upper(struct dentry *dentry, struct iattr *ia,
size_t num_zeros = (PAGE_CACHE_SIZE
- (ia->ia_size & ~PAGE_CACHE_MASK));
+
+ /*
+ * XXX(truncate) this should really happen at the begginning
+ * of ->setattr. But the code is too messy to that as part
+ * of a larger patch. ecryptfs is also totally missing out
+ * on the inode_change_ok check at the beginning of
+ * ->setattr while would include this.
+ */
+ rc = inode_newsize_ok(inode, ia->ia_size);
+ if (rc)
+ goto out;
+
if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED)) {
- rc = simple_setsize(inode, ia->ia_size);
- if (rc)
- goto out;
+ truncate_setsize(inode, ia->ia_size);
lower_ia->ia_size = ia->ia_size;
lower_ia->ia_valid |= ATTR_SIZE;
goto out;
@@ -830,7 +840,7 @@ static int truncate_upper(struct dentry *dentry, struct iattr *ia,
goto out;
}
}
- simple_setsize(inode, ia->ia_size);
+ truncate_setsize(inode, ia->ia_size);
rc = ecryptfs_write_inode_size_to_metadata(inode);
if (rc) {
printk(KERN_ERR "Problem with "
diff --git a/fs/ecryptfs/super.c b/fs/ecryptfs/super.c
index 0435886e4a9..f7fc286a3aa 100644
--- a/fs/ecryptfs/super.c
+++ b/fs/ecryptfs/super.c
@@ -118,11 +118,15 @@ void ecryptfs_init_inode(struct inode *inode, struct inode *lower_inode)
*/
static int ecryptfs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
- return vfs_statfs(ecryptfs_dentry_to_lower(dentry), buf);
+ struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);
+
+ if (!lower_dentry->d_sb->s_op->statfs)
+ return -ENOSYS;
+ return lower_dentry->d_sb->s_op->statfs(lower_dentry, buf);
}
/**
- * ecryptfs_clear_inode
+ * ecryptfs_evict_inode
* @inode - The ecryptfs inode
*
* Called by iput() when the inode reference count reached zero
@@ -131,8 +135,10 @@ static int ecryptfs_statfs(struct dentry *dentry, struct kstatfs *buf)
* on the inode free list. We use this to drop out reference to the
* lower inode.
*/
-static void ecryptfs_clear_inode(struct inode *inode)
+static void ecryptfs_evict_inode(struct inode *inode)
{
+ truncate_inode_pages(&inode->i_data, 0);
+ end_writeback(inode);
iput(ecryptfs_inode_to_lower(inode));
}
@@ -184,6 +190,6 @@ const struct super_operations ecryptfs_sops = {
.drop_inode = generic_delete_inode,
.statfs = ecryptfs_statfs,
.remount_fs = NULL,
- .clear_inode = ecryptfs_clear_inode,
+ .evict_inode = ecryptfs_evict_inode,
.show_options = ecryptfs_show_options
};