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authorChristoph Hellwig <hch@infradead.org>2010-03-03 17:05:06 +0300
committerJan Kara <jack@suse.cz>2010-03-05 02:20:30 +0300
commit907f4554e2521cb28b0009d17167760650a9561c (patch)
tree68dc49163fd34331f8efbd63592c8f1baa387031 /fs/ufs
parent9f7547580263d4a55efe06ce5cfd567f568be6e8 (diff)
downloadlinux-907f4554e2521cb28b0009d17167760650a9561c.tar.xz
dquot: move dquot initialization responsibility into the filesystem
Currently various places in the VFS call vfs_dq_init directly. This means we tie the quota code into the VFS. Get rid of that and make the filesystem responsible for the initialization. For most metadata operations this is a straight forward move into the methods, but for truncate and open it's a bit more complicated. For truncate we currently only call vfs_dq_init for the sys_truncate case because open already takes care of it for ftruncate and open(O_TRUNC) - the new code causes an additional vfs_dq_init for those which is harmless. For open the initialization is moved from do_filp_open into the open method, which means it happens slightly earlier now, and only for regular files. The latter is fine because we don't need to initialize it for operations on special files, and we already do it as part of the namespace operations for directories. Add a dquot_file_open helper that filesystems that support generic quotas can use to fill in ->open. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/ufs')
-rw-r--r--fs/ufs/file.c2
-rw-r--r--fs/ufs/inode.c4
-rw-r--r--fs/ufs/namei.c18
-rw-r--r--fs/ufs/truncate.c3
4 files changed, 26 insertions, 1 deletions
diff --git a/fs/ufs/file.c b/fs/ufs/file.c
index 73655c61240a..d84762f3028e 100644
--- a/fs/ufs/file.c
+++ b/fs/ufs/file.c
@@ -40,7 +40,7 @@ const struct file_operations ufs_file_operations = {
.write = do_sync_write,
.aio_write = generic_file_aio_write,
.mmap = generic_file_mmap,
- .open = generic_file_open,
+ .open = dquot_file_open,
.fsync = simple_fsync,
.splice_read = generic_file_splice_read,
};
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index 7cf33379fd46..fff8edab382f 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -36,6 +36,7 @@
#include <linux/mm.h>
#include <linux/smp_lock.h>
#include <linux/buffer_head.h>
+#include <linux/quotaops.h>
#include "ufs_fs.h"
#include "ufs.h"
@@ -908,6 +909,9 @@ void ufs_delete_inode (struct inode * inode)
{
loff_t old_i_size;
+ if (!is_bad_inode(inode))
+ vfs_dq_init(inode);
+
truncate_inode_pages(&inode->i_data, 0);
if (is_bad_inode(inode))
goto no_delete;
diff --git a/fs/ufs/namei.c b/fs/ufs/namei.c
index 4c26d9e8bc94..c33cb90c516d 100644
--- a/fs/ufs/namei.c
+++ b/fs/ufs/namei.c
@@ -30,6 +30,7 @@
#include <linux/time.h>
#include <linux/fs.h>
#include <linux/smp_lock.h>
+#include <linux/quotaops.h>
#include "ufs_fs.h"
#include "ufs.h"
@@ -84,6 +85,9 @@ static int ufs_create (struct inode * dir, struct dentry * dentry, int mode,
int err;
UFSD("BEGIN\n");
+
+ vfs_dq_init(dir);
+
inode = ufs_new_inode(dir, mode);
err = PTR_ERR(inode);
@@ -107,6 +111,9 @@ static int ufs_mknod (struct inode * dir, struct dentry *dentry, int mode, dev_t
if (!old_valid_dev(rdev))
return -EINVAL;
+
+ vfs_dq_init(dir);
+
inode = ufs_new_inode(dir, mode);
err = PTR_ERR(inode);
if (!IS_ERR(inode)) {
@@ -131,6 +138,8 @@ static int ufs_symlink (struct inode * dir, struct dentry * dentry,
if (l > sb->s_blocksize)
goto out_notlocked;
+ vfs_dq_init(dir);
+
lock_kernel();
inode = ufs_new_inode(dir, S_IFLNK | S_IRWXUGO);
err = PTR_ERR(inode);
@@ -176,6 +185,8 @@ static int ufs_link (struct dentry * old_dentry, struct inode * dir,
return -EMLINK;
}
+ vfs_dq_init(dir);
+
inode->i_ctime = CURRENT_TIME_SEC;
inode_inc_link_count(inode);
atomic_inc(&inode->i_count);
@@ -193,6 +204,8 @@ static int ufs_mkdir(struct inode * dir, struct dentry * dentry, int mode)
if (dir->i_nlink >= UFS_LINK_MAX)
goto out;
+ vfs_dq_init(dir);
+
lock_kernel();
inode_inc_link_count(dir);
@@ -237,6 +250,8 @@ static int ufs_unlink(struct inode *dir, struct dentry *dentry)
struct page *page;
int err = -ENOENT;
+ vfs_dq_init(dir);
+
de = ufs_find_entry(dir, &dentry->d_name, &page);
if (!de)
goto out;
@@ -281,6 +296,9 @@ static int ufs_rename(struct inode *old_dir, struct dentry *old_dentry,
struct ufs_dir_entry *old_de;
int err = -ENOENT;
+ vfs_dq_init(old_dir);
+ vfs_dq_init(new_dir);
+
old_de = ufs_find_entry(old_dir, &old_dentry->d_name, &old_page);
if (!old_de)
goto out;
diff --git a/fs/ufs/truncate.c b/fs/ufs/truncate.c
index 87bbab685901..e5ef8a3ec230 100644
--- a/fs/ufs/truncate.c
+++ b/fs/ufs/truncate.c
@@ -527,6 +527,9 @@ static int ufs_setattr(struct dentry *dentry, struct iattr *attr)
if (ia_valid & ATTR_SIZE &&
attr->ia_size != i_size_read(inode)) {
loff_t old_i_size = inode->i_size;
+
+ vfs_dq_init(inode);
+
error = vmtruncate(inode, attr->ia_size);
if (error)
return error;