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authorPatrick McHardy <kaber@trash.net>2013-03-31 18:10:34 +0200
committerPatrick McHardy <kaber@trash.net>2013-03-31 18:10:34 +0200
commit70711d223510ba1773cfe1d7770a56141c815ff8 (patch)
tree4a71f38a3a554ddecaa31b7d8c6bc49b7d1705b4 /fs/adfs/inode.c
parentd53b4ed072d9779cdf53582c46436dec06d0961f (diff)
parent19f949f52599ba7c3f67a5897ac6be14bfcb1200 (diff)
Merge tag 'v3.8' of /home/kaber/src/repos/linux
Linux 3.8 Signed-off-by: Patrick McHardy <kaber@trash.net> Conflicts: include/linux/Kbuild include/linux/netlink.h
Diffstat (limited to 'fs/adfs/inode.c')
-rw-r--r--fs/adfs/inode.c19
1 files changed, 12 insertions, 7 deletions
diff --git a/fs/adfs/inode.c b/fs/adfs/inode.c
index 1dab6a174d6..5f95d1ed9c6 100644
--- a/fs/adfs/inode.c
+++ b/fs/adfs/inode.c
@@ -45,6 +45,14 @@ static int adfs_readpage(struct file *file, struct page *page)
return block_read_full_page(page, adfs_get_block);
}
+static void adfs_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);
+}
+
static int adfs_write_begin(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata)
@@ -55,11 +63,8 @@ static int adfs_write_begin(struct file *file, struct address_space *mapping,
ret = cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
adfs_get_block,
&ADFS_I(mapping->host)->mmu_private);
- if (unlikely(ret)) {
- loff_t isize = mapping->host->i_size;
- if (pos + len > isize)
- vmtruncate(mapping->host, isize);
- }
+ if (unlikely(ret))
+ adfs_write_failed(mapping, pos + len);
return ret;
}
@@ -304,8 +309,8 @@ adfs_notify_change(struct dentry *dentry, struct iattr *attr)
* we can't change the UID or GID of any file -
* we have a global UID/GID in the superblock
*/
- if ((ia_valid & ATTR_UID && attr->ia_uid != ADFS_SB(sb)->s_uid) ||
- (ia_valid & ATTR_GID && attr->ia_gid != ADFS_SB(sb)->s_gid))
+ if ((ia_valid & ATTR_UID && !uid_eq(attr->ia_uid, ADFS_SB(sb)->s_uid)) ||
+ (ia_valid & ATTR_GID && !gid_eq(attr->ia_gid, ADFS_SB(sb)->s_gid)))
error = -EPERM;
if (error)