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authorLinus Torvalds <torvalds@linux-foundation.org>2009-03-27 16:23:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-03-27 16:23:12 -0700
commit3ae5080f4c2e293229508dabe7c8a90af4e4c460 (patch)
tree9cb11f26905a82b7fac9d3b8f9d61d58bc5c94b0 /fs/ufs
parent2c9e15a011c55ff96b2b8d2b126d1b9a96abba20 (diff)
parentaabb8fdb41128705fd1627f56fdd571e45fdbcdb (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: (37 commits) fs: avoid I_NEW inodes Merge code for single and multiple-instance mounts Remove get_init_pts_sb() Move common mknod_ptmx() calls into caller Parse mount options just once and copy them to super block Unroll essentials of do_remount_sb() into devpts vfs: simple_set_mnt() should return void fs: move bdev code out of buffer.c constify dentry_operations: rest constify dentry_operations: configfs constify dentry_operations: sysfs constify dentry_operations: JFS constify dentry_operations: OCFS2 constify dentry_operations: GFS2 constify dentry_operations: FAT constify dentry_operations: FUSE constify dentry_operations: procfs constify dentry_operations: ecryptfs constify dentry_operations: CIFS constify dentry_operations: AFS ...
Diffstat (limited to 'fs/ufs')
-rw-r--r--fs/ufs/inode.c39
-rw-r--r--fs/ufs/namei.c2
-rw-r--r--fs/ufs/super.c11
-rw-r--r--fs/ufs/ufs.h2
4 files changed, 31 insertions, 23 deletions
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index 39f87789856..3d2512c21f0 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -622,7 +622,6 @@ static int ufs1_read_inode(struct inode *inode, struct ufs_inode *ufs_inode)
struct ufs_inode_info *ufsi = UFS_I(inode);
struct super_block *sb = inode->i_sb;
mode_t mode;
- unsigned i;
/*
* Copy data to the in-core inode.
@@ -655,11 +654,12 @@ static int ufs1_read_inode(struct inode *inode, struct ufs_inode *ufs_inode)
if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {
- for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
- ufsi->i_u1.i_data[i] = ufs_inode->ui_u2.ui_addr.ui_db[i];
+ memcpy(ufsi->i_u1.i_data, &ufs_inode->ui_u2.ui_addr,
+ sizeof(ufs_inode->ui_u2.ui_addr));
} else {
- for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
- ufsi->i_u1.i_symlink[i] = ufs_inode->ui_u2.ui_symlink[i];
+ memcpy(ufsi->i_u1.i_symlink, ufs_inode->ui_u2.ui_symlink,
+ sizeof(ufs_inode->ui_u2.ui_symlink) - 1);
+ ufsi->i_u1.i_symlink[sizeof(ufs_inode->ui_u2.ui_symlink) - 1] = 0;
}
return 0;
}
@@ -669,7 +669,6 @@ static int ufs2_read_inode(struct inode *inode, struct ufs2_inode *ufs2_inode)
struct ufs_inode_info *ufsi = UFS_I(inode);
struct super_block *sb = inode->i_sb;
mode_t mode;
- unsigned i;
UFSD("Reading ufs2 inode, ino %lu\n", inode->i_ino);
/*
@@ -704,12 +703,12 @@ static int ufs2_read_inode(struct inode *inode, struct ufs2_inode *ufs2_inode)
*/
if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {
- for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
- ufsi->i_u1.u2_i_data[i] =
- ufs2_inode->ui_u2.ui_addr.ui_db[i];
+ memcpy(ufsi->i_u1.u2_i_data, &ufs2_inode->ui_u2.ui_addr,
+ sizeof(ufs2_inode->ui_u2.ui_addr));
} else {
- for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
- ufsi->i_u1.i_symlink[i] = ufs2_inode->ui_u2.ui_symlink[i];
+ memcpy(ufsi->i_u1.i_symlink, ufs2_inode->ui_u2.ui_symlink,
+ sizeof(ufs2_inode->ui_u2.ui_symlink) - 1);
+ ufsi->i_u1.i_symlink[sizeof(ufs2_inode->ui_u2.ui_symlink) - 1] = 0;
}
return 0;
}
@@ -781,7 +780,6 @@ static void ufs1_update_inode(struct inode *inode, struct ufs_inode *ufs_inode)
{
struct super_block *sb = inode->i_sb;
struct ufs_inode_info *ufsi = UFS_I(inode);
- unsigned i;
ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);
ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);
@@ -809,12 +807,12 @@ static void ufs1_update_inode(struct inode *inode, struct ufs_inode *ufs_inode)
/* ufs_inode->ui_u2.ui_addr.ui_db[0] = cpu_to_fs32(sb, inode->i_rdev); */
ufs_inode->ui_u2.ui_addr.ui_db[0] = ufsi->i_u1.i_data[0];
} else if (inode->i_blocks) {
- for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
- ufs_inode->ui_u2.ui_addr.ui_db[i] = ufsi->i_u1.i_data[i];
+ memcpy(&ufs_inode->ui_u2.ui_addr, ufsi->i_u1.i_data,
+ sizeof(ufs_inode->ui_u2.ui_addr));
}
else {
- for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
- ufs_inode->ui_u2.ui_symlink[i] = ufsi->i_u1.i_symlink[i];
+ memcpy(&ufs_inode->ui_u2.ui_symlink, ufsi->i_u1.i_symlink,
+ sizeof(ufs_inode->ui_u2.ui_symlink));
}
if (!inode->i_nlink)
@@ -825,7 +823,6 @@ static void ufs2_update_inode(struct inode *inode, struct ufs2_inode *ufs_inode)
{
struct super_block *sb = inode->i_sb;
struct ufs_inode_info *ufsi = UFS_I(inode);
- unsigned i;
UFSD("ENTER\n");
ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);
@@ -850,11 +847,11 @@ static void ufs2_update_inode(struct inode *inode, struct ufs2_inode *ufs_inode)
/* ufs_inode->ui_u2.ui_addr.ui_db[0] = cpu_to_fs32(sb, inode->i_rdev); */
ufs_inode->ui_u2.ui_addr.ui_db[0] = ufsi->i_u1.u2_i_data[0];
} else if (inode->i_blocks) {
- for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
- ufs_inode->ui_u2.ui_addr.ui_db[i] = ufsi->i_u1.u2_i_data[i];
+ memcpy(&ufs_inode->ui_u2.ui_addr, ufsi->i_u1.u2_i_data,
+ sizeof(ufs_inode->ui_u2.ui_addr));
} else {
- for (i = 0; i < (UFS_NDADDR + UFS_NINDIR) * 4; i++)
- ufs_inode->ui_u2.ui_symlink[i] = ufsi->i_u1.i_symlink[i];
+ memcpy(&ufs_inode->ui_u2.ui_symlink, ufsi->i_u1.i_symlink,
+ sizeof(ufs_inode->ui_u2.ui_symlink));
}
if (!inode->i_nlink)
diff --git a/fs/ufs/namei.c b/fs/ufs/namei.c
index e3a9b1fac75..23119fe7ad6 100644
--- a/fs/ufs/namei.c
+++ b/fs/ufs/namei.c
@@ -147,7 +147,7 @@ static int ufs_symlink (struct inode * dir, struct dentry * dentry,
} else {
/* fast symlink */
inode->i_op = &ufs_fast_symlink_inode_operations;
- memcpy((char*)&UFS_I(inode)->i_u1.i_data,symname,l);
+ memcpy(UFS_I(inode)->i_u1.i_symlink, symname, l);
inode->i_size = l-1;
}
mark_inode_dirty(inode);
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 261a1c2f22d..e1c1fc5ee23 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -636,6 +636,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
unsigned block_size, super_block_size;
unsigned flags;
unsigned super_block_offset;
+ unsigned maxsymlen;
int ret = -EINVAL;
uspi = NULL;
@@ -1069,6 +1070,16 @@ magic_found:
uspi->s_maxsymlinklen =
fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen);
+ if (uspi->fs_magic == UFS2_MAGIC)
+ maxsymlen = 2 * 4 * (UFS_NDADDR + UFS_NINDIR);
+ else
+ maxsymlen = 4 * (UFS_NDADDR + UFS_NINDIR);
+ if (uspi->s_maxsymlinklen > maxsymlen) {
+ ufs_warning(sb, __func__, "ufs_read_super: excessive maximum "
+ "fast symlink size (%u)\n", uspi->s_maxsymlinklen);
+ uspi->s_maxsymlinklen = maxsymlen;
+ }
+
inode = ufs_iget(sb, UFS_ROOTINO);
if (IS_ERR(inode)) {
ret = PTR_ERR(inode);
diff --git a/fs/ufs/ufs.h b/fs/ufs/ufs.h
index 11c035168ea..69b3427d788 100644
--- a/fs/ufs/ufs.h
+++ b/fs/ufs/ufs.h
@@ -23,7 +23,7 @@ struct ufs_sb_info {
struct ufs_inode_info {
union {
__fs32 i_data[15];
- __u8 i_symlink[4*15];
+ __u8 i_symlink[2 * 4 * 15];
__fs64 u2_i_data[15];
} i_u1;
__u32 i_flags;