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-rw-r--r--fs/omfs/dir.c4
-rw-r--r--fs/omfs/file.c27
-rw-r--r--fs/omfs/inode.c8
-rw-r--r--fs/omfs/omfs.h4
4 files changed, 27 insertions, 16 deletions
diff --git a/fs/omfs/dir.c b/fs/omfs/dir.c
index f00576ec320..fb5b3ff79dc 100644
--- a/fs/omfs/dir.c
+++ b/fs/omfs/dir.c
@@ -285,13 +285,13 @@ static int omfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
}
static int omfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
- struct nameidata *nd)
+ bool excl)
{
return omfs_add_node(dir, dentry, mode | S_IFREG);
}
static struct dentry *omfs_lookup(struct inode *dir, struct dentry *dentry,
- struct nameidata *nd)
+ unsigned int flags)
{
struct buffer_head *bh;
struct inode *inode = NULL;
diff --git a/fs/omfs/file.c b/fs/omfs/file.c
index 2c6d95257a4..e0d9b3e722b 100644
--- a/fs/omfs/file.c
+++ b/fs/omfs/file.c
@@ -146,8 +146,7 @@ static int omfs_grow_extent(struct inode *inode, struct omfs_extent *oe,
be64_to_cpu(entry->e_blocks);
if (omfs_allocate_block(inode->i_sb, new_block)) {
- entry->e_blocks =
- cpu_to_be64(be64_to_cpu(entry->e_blocks) + 1);
+ be64_add_cpu(&entry->e_blocks, 1);
terminator->e_blocks = ~(cpu_to_be64(
be64_to_cpu(~terminator->e_blocks) + 1));
goto out;
@@ -177,7 +176,7 @@ static int omfs_grow_extent(struct inode *inode, struct omfs_extent *oe,
be64_to_cpu(~terminator->e_blocks) + (u64) new_count));
/* write in new entry */
- oe->e_extent_count = cpu_to_be32(1 + be32_to_cpu(oe->e_extent_count));
+ be32_add_cpu(&oe->e_extent_count, 1);
out:
*ret_block = new_block;
@@ -307,6 +306,16 @@ omfs_writepages(struct address_space *mapping, struct writeback_control *wbc)
return mpage_writepages(mapping, wbc, omfs_get_block);
}
+static void omfs_write_failed(struct address_space *mapping, loff_t to)
+{
+ struct inode *inode = mapping->host;
+
+ if (to > inode->i_size) {
+ truncate_pagecache(inode, to, inode->i_size);
+ omfs_truncate(inode);
+ }
+}
+
static int omfs_write_begin(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata)
@@ -315,11 +324,8 @@ static int omfs_write_begin(struct file *file, struct address_space *mapping,
ret = block_write_begin(mapping, pos, len, flags, pagep,
omfs_get_block);
- if (unlikely(ret)) {
- loff_t isize = mapping->host->i_size;
- if (pos + len > isize)
- vmtruncate(mapping->host, isize);
- }
+ if (unlikely(ret))
+ omfs_write_failed(mapping, pos + len);
return ret;
}
@@ -351,9 +357,11 @@ static int omfs_setattr(struct dentry *dentry, struct iattr *attr)
if ((attr->ia_valid & ATTR_SIZE) &&
attr->ia_size != i_size_read(inode)) {
- error = vmtruncate(inode, attr->ia_size);
+ error = inode_newsize_ok(inode, attr->ia_size);
if (error)
return error;
+ truncate_setsize(inode, attr->ia_size);
+ omfs_truncate(inode);
}
setattr_copy(inode, attr);
@@ -363,7 +371,6 @@ static int omfs_setattr(struct dentry *dentry, struct iattr *attr)
const struct inode_operations omfs_file_inops = {
.setattr = omfs_setattr,
- .truncate = omfs_truncate
};
const struct address_space_operations omfs_aops = {
diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c
index e6213b3725d..25d715c7c87 100644
--- a/fs/omfs/inode.c
+++ b/fs/omfs/inode.c
@@ -391,12 +391,16 @@ static int parse_options(char *options, struct omfs_sb_info *sbi)
case Opt_uid:
if (match_int(&args[0], &option))
return 0;
- sbi->s_uid = option;
+ sbi->s_uid = make_kuid(current_user_ns(), option);
+ if (!uid_valid(sbi->s_uid))
+ return 0;
break;
case Opt_gid:
if (match_int(&args[0], &option))
return 0;
- sbi->s_gid = option;
+ sbi->s_gid = make_kgid(current_user_ns(), option);
+ if (!gid_valid(sbi->s_gid))
+ return 0;
break;
case Opt_umask:
if (match_octal(&args[0], &option))
diff --git a/fs/omfs/omfs.h b/fs/omfs/omfs.h
index 8941f12c6b0..f0f8bc75e60 100644
--- a/fs/omfs/omfs.h
+++ b/fs/omfs/omfs.h
@@ -19,8 +19,8 @@ struct omfs_sb_info {
unsigned long **s_imap;
int s_imap_size;
struct mutex s_bitmap_lock;
- int s_uid;
- int s_gid;
+ kuid_t s_uid;
+ kgid_t s_gid;
int s_dmask;
int s_fmask;
};