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authorChristoph Hellwig <hch@infradead.org>2010-03-03 09:05:06 -0500
committerJan Kara <jack@suse.cz>2010-03-05 00:20:30 +0100
commit907f4554e2521cb28b0009d17167760650a9561c (patch)
tree68dc49163fd34331f8efbd63592c8f1baa387031 /fs/udf
parent9f7547580263d4a55efe06ce5cfd567f568be6e8 (diff)
downloadop-kernel-dev-907f4554e2521cb28b0009d17167760650a9561c.zip
op-kernel-dev-907f4554e2521cb28b0009d17167760650a9561c.tar.gz
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/udf')
-rw-r--r--fs/udf/file.c5
-rw-r--r--fs/udf/inode.c4
-rw-r--r--fs/udf/namei.c17
3 files changed, 25 insertions, 1 deletions
diff --git a/fs/udf/file.c b/fs/udf/file.c
index 2df7fcb..013fa44 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -208,7 +208,7 @@ const struct file_operations udf_file_operations = {
.read = do_sync_read,
.aio_read = generic_file_aio_read,
.ioctl = udf_ioctl,
- .open = generic_file_open,
+ .open = dquot_file_open,
.mmap = generic_file_mmap,
.write = do_sync_write,
.aio_write = udf_file_aio_write,
@@ -227,6 +227,9 @@ static int udf_setattr(struct dentry *dentry, struct iattr *iattr)
if (error)
return error;
+ if (iattr->ia_valid & ATTR_SIZE)
+ vfs_dq_init(inode);
+
if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) ||
(iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) {
error = dquot_transfer(inode, iattr);
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 1199e8e..f195202 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -36,6 +36,7 @@
#include <linux/pagemap.h>
#include <linux/buffer_head.h>
#include <linux/writeback.h>
+#include <linux/quotaops.h>
#include <linux/slab.h>
#include <linux/crc-itu-t.h>
@@ -70,6 +71,9 @@ static int udf_get_block(struct inode *, sector_t, struct buffer_head *, int);
void udf_delete_inode(struct inode *inode)
{
+ if (!is_bad_inode(inode))
+ vfs_dq_init(inode);
+
truncate_inode_pages(&inode->i_data, 0);
if (is_bad_inode(inode))
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index cd21150..e360c3f 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -563,6 +563,8 @@ static int udf_create(struct inode *dir, struct dentry *dentry, int mode,
int err;
struct udf_inode_info *iinfo;
+ vfs_dq_init(dir);
+
lock_kernel();
inode = udf_new_inode(dir, mode, &err);
if (!inode) {
@@ -616,6 +618,8 @@ static int udf_mknod(struct inode *dir, struct dentry *dentry, int mode,
if (!old_valid_dev(rdev))
return -EINVAL;
+ vfs_dq_init(dir);
+
lock_kernel();
err = -EIO;
inode = udf_new_inode(dir, mode, &err);
@@ -662,6 +666,8 @@ static int udf_mkdir(struct inode *dir, struct dentry *dentry, int mode)
struct udf_inode_info *dinfo = UDF_I(dir);
struct udf_inode_info *iinfo;
+ vfs_dq_init(dir);
+
lock_kernel();
err = -EMLINK;
if (dir->i_nlink >= (256 << sizeof(dir->i_nlink)) - 1)
@@ -799,6 +805,8 @@ static int udf_rmdir(struct inode *dir, struct dentry *dentry)
struct fileIdentDesc *fi, cfi;
struct kernel_lb_addr tloc;
+ vfs_dq_init(dir);
+
retval = -ENOENT;
lock_kernel();
fi = udf_find_entry(dir, &dentry->d_name, &fibh, &cfi);
@@ -845,6 +853,8 @@ static int udf_unlink(struct inode *dir, struct dentry *dentry)
struct fileIdentDesc cfi;
struct kernel_lb_addr tloc;
+ vfs_dq_init(dir);
+
retval = -ENOENT;
lock_kernel();
fi = udf_find_entry(dir, &dentry->d_name, &fibh, &cfi);
@@ -899,6 +909,8 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
struct buffer_head *bh;
struct udf_inode_info *iinfo;
+ vfs_dq_init(dir);
+
lock_kernel();
inode = udf_new_inode(dir, S_IFLNK, &err);
if (!inode)
@@ -1069,6 +1081,8 @@ static int udf_link(struct dentry *old_dentry, struct inode *dir,
int err;
struct buffer_head *bh;
+ vfs_dq_init(dir);
+
lock_kernel();
if (inode->i_nlink >= (256 << sizeof(inode->i_nlink)) - 1) {
unlock_kernel();
@@ -1131,6 +1145,9 @@ static int udf_rename(struct inode *old_dir, struct dentry *old_dentry,
struct kernel_lb_addr tloc;
struct udf_inode_info *old_iinfo = UDF_I(old_inode);
+ vfs_dq_init(old_dir);
+ vfs_dq_init(new_dir);
+
lock_kernel();
ofi = udf_find_entry(old_dir, &old_dentry->d_name, &ofibh, &ocfi);
if (ofi) {
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