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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-01-19 02:59:48 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-01-19 02:59:48 (GMT)
commit484c60e206b03fe19129dc6ec4582142293cd876 (patch)
treeacc3e37a87704133d4a7c55c57136f737356c41a /fs
parent06d30f0208576f3cf2a0ee2072c1408e392038b4 (diff)
parentec6f34e5b552fb0a52e6aae1a5afbbb1605cc6cc (diff)
downloadlinux-484c60e206b03fe19129dc6ec4582142293cd876.tar.xz
Merge 3.19-rc5 into staging-next
We want the staging fixes in this branch as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/btrfs/backref.c13
-rw-r--r--fs/btrfs/delayed-inode.c8
-rw-r--r--fs/btrfs/extent-tree.c12
-rw-r--r--fs/btrfs/inode.c4
-rw-r--r--fs/btrfs/scrub.c2
-rw-r--r--fs/ceph/addr.c2
-rw-r--r--fs/cifs/cifsglob.h6
-rw-r--r--fs/cifs/netmisc.c12
-rw-r--r--fs/cifs/readdir.c10
-rw-r--r--fs/cifs/smb2misc.c12
-rw-r--r--fs/cifs/smb2ops.c3
-rw-r--r--fs/cifs/smb2pdu.h2
-rw-r--r--fs/cifs/smb2transport.c2
-rw-r--r--fs/ext4/extents.c4
-rw-r--r--fs/ext4/file.c220
-rw-r--r--fs/ext4/resize.c24
-rw-r--r--fs/ext4/super.c2
-rw-r--r--fs/fcntl.c5
-rw-r--r--fs/fuse/dev.c51
-rw-r--r--fs/fuse/dir.c31
-rw-r--r--fs/fuse/fuse_i.h2
-rw-r--r--fs/fuse/inode.c5
-rw-r--r--fs/isofs/rock.c3
-rw-r--r--fs/kernfs/dir.c12
-rw-r--r--fs/lockd/svc.c8
-rw-r--r--fs/locks.c2
-rw-r--r--fs/nfs/nfs4client.c42
-rw-r--r--fs/nfs/nfs4proc.c21
-rw-r--r--fs/nfsd/nfs4state.c2
-rw-r--r--fs/notify/fanotify/fanotify_user.c10
-rw-r--r--fs/ocfs2/dlm/dlmrecovery.c5
-rw-r--r--fs/ocfs2/namei.c43
-rw-r--r--fs/udf/dir.c31
-rw-r--r--fs/udf/inode.c14
-rw-r--r--fs/udf/namei.c17
-rw-r--r--fs/udf/symlink.c57
-rw-r--r--fs/udf/udfdecl.h3
-rw-r--r--fs/udf/unicode.c28
38 files changed, 452 insertions, 278 deletions
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 2d3e32e..8729cf6 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1552,7 +1552,6 @@ int tree_backref_for_extent(unsigned long *ptr, struct extent_buffer *eb,
{
int ret;
int type;
- struct btrfs_tree_block_info *info;
struct btrfs_extent_inline_ref *eiref;
if (*ptr == (unsigned long)-1)
@@ -1573,9 +1572,17 @@ int tree_backref_for_extent(unsigned long *ptr, struct extent_buffer *eb,
}
/* we can treat both ref types equally here */
- info = (struct btrfs_tree_block_info *)(ei + 1);
*out_root = btrfs_extent_inline_ref_offset(eb, eiref);
- *out_level = btrfs_tree_block_level(eb, info);
+
+ if (key->type == BTRFS_EXTENT_ITEM_KEY) {
+ struct btrfs_tree_block_info *info;
+
+ info = (struct btrfs_tree_block_info *)(ei + 1);
+ *out_level = btrfs_tree_block_level(eb, info);
+ } else {
+ ASSERT(key->type == BTRFS_METADATA_ITEM_KEY);
+ *out_level = (u8)key->offset;
+ }
if (ret == 1)
*ptr = (unsigned long)-1;
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index 054577b..de4e70f 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -1857,6 +1857,14 @@ int btrfs_delayed_delete_inode_ref(struct inode *inode)
{
struct btrfs_delayed_node *delayed_node;
+ /*
+ * we don't do delayed inode updates during log recovery because it
+ * leads to enospc problems. This means we also can't do
+ * delayed inode refs
+ */
+ if (BTRFS_I(inode)->root->fs_info->log_root_recovering)
+ return -EAGAIN;
+
delayed_node = btrfs_get_or_create_delayed_node(inode);
if (IS_ERR(delayed_node))
return PTR_ERR(delayed_node);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index a80b971..1511658 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3139,9 +3139,11 @@ static int write_one_cache_group(struct btrfs_trans_handle *trans,
struct extent_buffer *leaf;
ret = btrfs_search_slot(trans, extent_root, &cache->key, path, 0, 1);
- if (ret < 0)
+ if (ret) {
+ if (ret > 0)
+ ret = -ENOENT;
goto fail;
- BUG_ON(ret); /* Corruption */
+ }
leaf = path->nodes[0];
bi = btrfs_item_ptr_offset(leaf, path->slots[0]);
@@ -3149,11 +3151,9 @@ static int write_one_cache_group(struct btrfs_trans_handle *trans,
btrfs_mark_buffer_dirty(leaf);
btrfs_release_path(path);
fail:
- if (ret) {
+ if (ret)
btrfs_abort_transaction(trans, root, ret);
- return ret;
- }
- return 0;
+ return ret;
}
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index e687bb0..8bf326a 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6255,8 +6255,10 @@ static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
out_fail:
btrfs_end_transaction(trans, root);
- if (drop_on_err)
+ if (drop_on_err) {
+ inode_dec_link_count(inode);
iput(inode);
+ }
btrfs_balance_delayed_items(root);
btrfs_btree_balance_dirty(root);
return err;
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index f2bb13a..9e1569f 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -2607,9 +2607,9 @@ static int scrub_extent_for_parity(struct scrub_parity *sparity,
ret = scrub_pages_for_parity(sparity, logical, l, physical, dev,
flags, gen, mirror_num,
have_csum ? csum : NULL);
-skip:
if (ret)
return ret;
+skip:
len -= l;
logical += l;
physical += l;
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index f5013d9..c81c0e0 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -1416,7 +1416,7 @@ void ceph_fill_inline_data(struct inode *inode, struct page *locked_page,
}
}
- dout("fill_inline_data %p %llx.%llx len %lu locked_page %p\n",
+ dout("fill_inline_data %p %llx.%llx len %zu locked_page %p\n",
inode, ceph_vinop(inode), len, locked_page);
if (len > 0) {
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 6e13911..22b289a 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -661,16 +661,16 @@ set_credits(struct TCP_Server_Info *server, const int val)
server->ops->set_credits(server, val);
}
-static inline __u64
+static inline __le64
get_next_mid64(struct TCP_Server_Info *server)
{
- return server->ops->get_next_mid(server);
+ return cpu_to_le64(server->ops->get_next_mid(server));
}
static inline __le16
get_next_mid(struct TCP_Server_Info *server)
{
- __u16 mid = get_next_mid64(server);
+ __u16 mid = server->ops->get_next_mid(server);
/*
* The value in the SMB header should be little endian for easy
* on-the-wire decoding.
diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c
index b333ff6..abae6dd 100644
--- a/fs/cifs/netmisc.c
+++ b/fs/cifs/netmisc.c
@@ -926,6 +926,7 @@ cifs_NTtimeToUnix(__le64 ntutc)
/* Subtract the NTFS time offset, then convert to 1s intervals. */
s64 t = le64_to_cpu(ntutc) - NTFS_TIME_OFFSET;
+ u64 abs_t;
/*
* Unfortunately can not use normal 64 bit division on 32 bit arch, but
@@ -933,13 +934,14 @@ cifs_NTtimeToUnix(__le64 ntutc)
* to special case them
*/
if (t < 0) {
- t = -t;
- ts.tv_nsec = (long)(do_div(t, 10000000) * 100);
+ abs_t = -t;
+ ts.tv_nsec = (long)(do_div(abs_t, 10000000) * 100);
ts.tv_nsec = -ts.tv_nsec;
- ts.tv_sec = -t;
+ ts.tv_sec = -abs_t;
} else {
- ts.tv_nsec = (long)do_div(t, 10000000) * 100;
- ts.tv_sec = t;
+ abs_t = t;
+ ts.tv_nsec = (long)do_div(abs_t, 10000000) * 100;
+ ts.tv_sec = abs_t;
}
return ts;
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 8eaf20a..c295338 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -69,7 +69,8 @@ static inline void dump_cifs_file_struct(struct file *file, char *label)
* Attempt to preload the dcache with the results from the FIND_FIRST/NEXT
*
* Find the dentry that matches "name". If there isn't one, create one. If it's
- * a negative dentry or the uniqueid changed, then drop it and recreate it.
+ * a negative dentry or the uniqueid or filetype(mode) changed,
+ * then drop it and recreate it.
*/
static void
cifs_prime_dcache(struct dentry *parent, struct qstr *name,
@@ -97,8 +98,11 @@ cifs_prime_dcache(struct dentry *parent, struct qstr *name,
if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM))
fattr->cf_uniqueid = CIFS_I(inode)->uniqueid;
- /* update inode in place if i_ino didn't change */
- if (CIFS_I(inode)->uniqueid == fattr->cf_uniqueid) {
+ /* update inode in place
+ * if both i_ino and i_mode didn't change */
+ if (CIFS_I(inode)->uniqueid == fattr->cf_uniqueid &&
+ (inode->i_mode & S_IFMT) ==
+ (fattr->cf_mode & S_IFMT)) {
cifs_fattr_to_inode(inode, fattr);
goto out;
}
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index f1cefc9..689f035 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -32,12 +32,14 @@
static int
check_smb2_hdr(struct smb2_hdr *hdr, __u64 mid)
{
+ __u64 wire_mid = le64_to_cpu(hdr->MessageId);
+
/*
* Make sure that this really is an SMB, that it is a response,
* and that the message ids match.
*/
if ((*(__le32 *)hdr->ProtocolId == SMB2_PROTO_NUMBER) &&
- (mid == hdr->MessageId)) {
+ (mid == wire_mid)) {
if (hdr->Flags & SMB2_FLAGS_SERVER_TO_REDIR)
return 0;
else {
@@ -51,11 +53,11 @@ check_smb2_hdr(struct smb2_hdr *hdr, __u64 mid)
if (*(__le32 *)hdr->ProtocolId != SMB2_PROTO_NUMBER)
cifs_dbg(VFS, "Bad protocol string signature header %x\n",
*(unsigned int *) hdr->ProtocolId);
- if (mid != hdr->MessageId)
+ if (mid != wire_mid)
cifs_dbg(VFS, "Mids do not match: %llu and %llu\n",
- mid, hdr->MessageId);
+ mid, wire_mid);
}
- cifs_dbg(VFS, "Bad SMB detected. The Mid=%llu\n", hdr->MessageId);
+ cifs_dbg(VFS, "Bad SMB detected. The Mid=%llu\n", wire_mid);
return 1;
}
@@ -95,7 +97,7 @@ smb2_check_message(char *buf, unsigned int length)
{
struct smb2_hdr *hdr = (struct smb2_hdr *)buf;
struct smb2_pdu *pdu = (struct smb2_pdu *)hdr;
- __u64 mid = hdr->MessageId;
+ __u64 mid = le64_to_cpu(hdr->MessageId);
__u32 len = get_rfc1002_length(buf);
__u32 clc_len; /* calculated length */
int command;
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 93fd058..96b5d40 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -176,10 +176,11 @@ smb2_find_mid(struct TCP_Server_Info *server, char *buf)
{
struct mid_q_entry *mid;
struct smb2_hdr *hdr = (struct smb2_hdr *)buf;
+ __u64 wire_mid = le64_to_cpu(hdr->MessageId);
spin_lock(&GlobalMid_Lock);
list_for_each_entry(mid, &server->pending_mid_q, qhead) {
- if ((mid->mid == hdr->MessageId) &&
+ if ((mid->mid == wire_mid) &&
(mid->mid_state == MID_REQUEST_SUBMITTED) &&
(mid->command == hdr->Command)) {
spin_unlock(&GlobalMid_Lock);
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index ce85847..70867d5 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -110,7 +110,7 @@ struct smb2_hdr {
__le16 CreditRequest; /* CreditResponse */
__le32 Flags;
__le32 NextCommand;
- __u64 MessageId; /* opaque - so can stay little endian */
+ __le64 MessageId;
__le32 ProcessId;
__u32 TreeId; /* opaque - so do not make little endian */
__u64 SessionId; /* opaque - so do not make little endian */
diff --git a/fs/cifs/smb2transport.c b/fs/cifs/smb2transport.c
index 5111e72..d4c5b6f 100644
--- a/fs/cifs/smb2transport.c
+++ b/fs/cifs/smb2transport.c
@@ -490,7 +490,7 @@ smb2_mid_entry_alloc(const struct smb2_hdr *smb_buffer,
return temp;
else {
memset(temp, 0, sizeof(struct mid_q_entry));
- temp->mid = smb_buffer->MessageId; /* always LE */
+ temp->mid = le64_to_cpu(smb_buffer->MessageId);
temp->pid = current->pid;
temp->command = smb_buffer->Command; /* Always LE */
temp->when_alloc = jiffies;
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index e5d3ead..bed4308 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -5166,8 +5166,8 @@ int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
/* fallback to generic here if not in extents fmt */
if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)))
- return __generic_block_fiemap(inode, fieinfo, start, len,
- ext4_get_block);
+ return generic_block_fiemap(inode, fieinfo, start, len,
+ ext4_get_block);
if (fiemap_check_flags(fieinfo, EXT4_FIEMAP_FLAGS))
return -EBADR;
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 513c12c..8131be8 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -273,19 +273,24 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
* we determine this extent as a data or a hole according to whether the
* page cache has data or not.
*/
-static int ext4_find_unwritten_pgoff(struct inode *inode, int whence,
- loff_t endoff, loff_t *offset)
+static int ext4_find_unwritten_pgoff(struct inode *inode,
+ int whence,
+ struct ext4_map_blocks *map,
+ loff_t *offset)
{
struct pagevec pvec;
+ unsigned int blkbits;
pgoff_t index;
pgoff_t end;
+ loff_t endoff;
loff_t startoff;
loff_t lastoff;
int found = 0;
+ blkbits = inode->i_sb->s_blocksize_bits;
startoff = *offset;
lastoff = startoff;
-
+ endoff = (loff_t)(map->m_lblk + map->m_len) << blkbits;
index = startoff >> PAGE_CACHE_SHIFT;
end = endoff >> PAGE_CACHE_SHIFT;
@@ -403,144 +408,147 @@ out:
static loff_t ext4_seek_data(struct file *file, loff_t offset, loff_t maxsize)
{
struct inode *inode = file->f_mapping->host;
- struct fiemap_extent_info fie;
- struct fiemap_extent ext[2];
- loff_t next;
- int i, ret = 0;
+ struct ext4_map_blocks map;
+ struct extent_status es;
+ ext4_lblk_t start, last, end;
+ loff_t dataoff, isize;
+ int blkbits;
+ int ret = 0;
mutex_lock(&inode->i_mutex);
- if (offset >= inode->i_size) {
+
+ isize = i_size_read(inode);
+ if (offset >= isize) {
mutex_unlock(&inode->i_mutex);
return -ENXIO;
}
- fie.fi_flags = 0;
- fie.fi_extents_max = 2;
- fie.fi_extents_start = (struct fiemap_extent __user *) &ext;
- while (1) {
- mm_segment_t old_fs = get_fs();
-
- fie.fi_extents_mapped = 0;
- memset(ext, 0, sizeof(*ext) * fie.fi_extents_max);
-
- set_fs(get_ds());
- ret = ext4_fiemap(inode, &fie, offset, maxsize - offset);
- set_fs(old_fs);
- if (ret)
+
+ blkbits = inode->i_sb->s_blocksize_bits;
+ start = offset >> blkbits;
+ last = start;
+ end = isize >> blkbits;
+ dataoff = offset;
+
+ do {
+ map.m_lblk = last;
+ map.m_len = end - last + 1;
+ ret = ext4_map_blocks(NULL, inode, &map, 0);
+ if (ret > 0 && !(map.m_flags & EXT4_MAP_UNWRITTEN)) {
+ if (last != start)
+ dataoff = (loff_t)last << blkbits;
break;
+ }
- /* No extents found, EOF */
- if (!fie.fi_extents_mapped) {
- ret = -ENXIO;
+ /*
+ * If there is a delay extent at this offset,
+ * it will be as a data.
+ */
+ ext4_es_find_delayed_extent_range(inode, last, last, &es);
+ if (es.es_len != 0 && in_range(last, es.es_lblk, es.es_len)) {
+ if (last != start)
+ dataoff = (loff_t)last << blkbits;
break;
}
- for (i = 0; i < fie.fi_extents_mapped; i++) {
- next = (loff_t)(ext[i].fe_length + ext[i].fe_logical);
- if (offset < (loff_t)ext[i].fe_logical)
- offset = (loff_t)ext[i].fe_logical;
- /*
- * If extent is not unwritten, then it contains valid
- * data, mapped or delayed.
- */
- if (!(ext[i].fe_flags & FIEMAP_EXTENT_UNWRITTEN))
- goto out;
+ /*
+ * If there is a unwritten extent at this offset,
+ * it will be as a data or a hole according to page
+ * cache that has data or not.
+ */
+ if (map.m_flags & EXT4_MAP_UNWRITTEN) {
+ int unwritten;
+ unwritten = ext4_find_unwritten_pgoff(inode, SEEK_DATA,
+ &map, &dataoff);
+ if (unwritten)
+ break;
+ }
- /*
- * If there is a unwritten extent at this offset,
- * it will be as a data or a hole according to page
- * cache that has data or not.
- */
- if (ext4_find_unwritten_pgoff(inode, SEEK_DATA,
- next, &offset))
- goto out;
+ last++;
+ dataoff = (loff_t)last << blkbits;
+ } while (last <= end);
- if (ext[i].fe_flags & FIEMAP_EXTENT_LAST) {
- ret = -ENXIO;
- goto out;
- }
- offset = next;
- }
- }
- if (offset > inode->i_size)
- offset = inode->i_size;
-out:
mutex_unlock(&inode->i_mutex);
- if (ret)
- return ret;
- return vfs_setpos(file, offset, maxsize);
+ if (dataoff > isize)
+ return -ENXIO;
+
+ return vfs_setpos(file, dataoff, maxsize);
}
/*
- * ext4_seek_hole() retrieves the offset for SEEK_HOLE
+ * ext4_seek_hole() retrieves the offset for SEEK_HOLE.
*/
static loff_t ext4_seek_hole(struct file *file, loff_t offset, loff_t maxsize)
{
struct inode *inode = file->f_mapping->host;
- struct fiemap_extent_info fie;
- struct fiemap_extent ext[2];
- loff_t next;
- int i, ret = 0;
+ struct ext4_map_blocks map;
+ struct extent_status es;
+ ext4_lblk_t start, last, end;
+ loff_t holeoff, isize;
+ int blkbits;
+ int ret = 0;
mutex_lock(&inode->i_mutex);
- if (offset >= inode->i_size) {
+
+ isize = i_size_read(inode);
+ if (offset >= isize) {
mutex_unlock(&inode->i_mutex);
return -ENXIO;
}
- fie.fi_flags = 0;
- fie.fi_extents_max = 2;
- fie.fi_extents_start = (struct fiemap_extent __user *)&ext;
- while (1) {
- mm_segment_t old_fs = get_fs();
-
- fie.fi_extents_mapped = 0;
- memset(ext, 0, sizeof(*ext));
+ blkbits = inode->i_sb->s_blocksize_bits;
+ start = offset >> blkbits;
+ last = start;
+ end = isize >> blkbits;
+ holeoff = offset;
- set_fs(get_ds());
- ret = ext4_fiemap(inode, &fie, offset, maxsize - offset);
- set_fs(old_fs);
- if (ret)
- break;
+ do {
+ map.m_lblk = last;
+ map.m_len = end - last + 1;
+ ret = ext4_map_blocks(NULL, inode, &map, 0);
+ if (ret > 0 && !(map.m_flags & EXT4_MAP_UNWRITTEN)) {
+ last += ret;
+ holeoff = (loff_t)last << blkbits;
+ continue;
+ }
- /* No extents found */
- if (!fie.fi_extents_mapped)
- break;
+ /*
+ * If there is a delay extent at this offset,
+ * we will skip this extent.
+ */
+ ext4_es_find_delayed_extent_range(inode, last, last, &es);
+ if (es.es_len != 0 && in_range(last, es.es_lblk, es.es_len)) {
+ last = es.es_lblk + es.es_len;
+ holeoff = (loff_t)last << blkbits;
+ continue;
+ }
- for (i = 0; i < fie.fi_extents_mapped; i++) {
- next = (loff_t)(ext[i].fe_logical + ext[i].fe_length);
- /*
- * If extent is not unwritten, then it contains valid
- * data, mapped or delayed.
- */
- if (!(ext[i].fe_flags & FIEMAP_EXTENT_UNWRITTEN)) {
- if (offset < (loff_t)ext[i].fe_logical)
- goto out;
- offset = next;
+ /*
+ * If there is a unwritten extent at this offset,
+ * it will be as a data or a hole according to page
+ * cache that has data or not.
+ */
+ if (map.m_flags & EXT4_MAP_UNWRITTEN) {
+ int unwritten;
+ unwritten = ext4_find_unwritten_pgoff(inode, SEEK_HOLE,
+ &map, &holeoff);
+ if (!unwritten) {
+ last += ret;
+ holeoff = (loff_t)last << blkbits;
continue;
}
- /*
- * If there is a unwritten extent at this offset,
- * it will be as a data or a hole according to page
- * cache that has data or not.
- */
- if (ext4_find_unwritten_pgoff(inode, SEEK_HOLE,
- next, &offset))
- goto out;
-
- offset = next;
- if (ext[i].fe_flags & FIEMAP_EXTENT_LAST)
- goto out;
}
- }
- if (offset > inode->i_size)
- offset = inode->i_size;
-out:
+
+ /* find a hole */
+ break;
+ } while (last <= end);
+
mutex_unlock(&inode->i_mutex);
- if (ret)
- return ret;
- return vfs_setpos(file, offset, maxsize);
+ if (holeoff > isize)
+ holeoff = isize;
+
+ return vfs_setpos(file, holeoff, maxsize);
}
/*
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index bf76f40..8a8ec62 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -24,6 +24,18 @@ int ext4_resize_begin(struct super_block *sb)
return -EPERM;
/*
+ * If we are not using the primary superblock/GDT copy don't resize,
+ * because the user tools have no way of handling this. Probably a
+ * bad time to do it anyways.
+ */
+ if (EXT4_SB(sb)->s_sbh->b_blocknr !=
+ le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) {
+ ext4_warning(sb, "won't resize using backup superblock at %llu",
+ (unsigned long long)EXT4_SB(sb)->s_sbh->b_blocknr);
+ return -EPERM;
+ }
+
+ /*
* We are not allowed to do online-resizing on a filesystem mounted
* with error, because it can destroy the filesystem easily.
*/
@@ -758,18 +770,6 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
"EXT4-fs: ext4_add_new_gdb: adding group block %lu\n",
gdb_num);
- /*
- * If we are not using the primary superblock/GDT copy don't resize,
- * because the user tools have no way of handling this. Probably a
- * bad time to do it anyways.
- */
- if (EXT4_SB(sb)->s_sbh->b_blocknr !=
- le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) {
- ext4_warning(sb, "won't resize using backup superblock at %llu",
- (unsigned long long)EXT4_SB(sb)->s_sbh->b_blocknr);
- return -EPERM;
- }
-
gdb_bh = sb_bread(sb, gdblock);
if (!gdb_bh)
return -EIO;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 43c92b1..74c5f53 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3482,7 +3482,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) &&
EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
- ext4_warning(sb, KERN_INFO "metadata_csum and uninit_bg are "
+ ext4_warning(sb, "metadata_csum and uninit_bg are "
"redundant flags; please run fsck.");
/* Check for a known checksum algorithm */
diff --git a/fs/fcntl.c b/fs/fcntl.c
index 99d440a..ee85cd4 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -740,14 +740,15 @@ static int __init fcntl_init(void)
* Exceptions: O_NONBLOCK is a two bit define on parisc; O_NDELAY
* is defined as O_NONBLOCK on some platforms and not on others.
*/
- BUILD_BUG_ON(20 - 1 /* for O_RDONLY being 0 */ != HWEIGHT32(
+ BUILD_BUG_ON(21 - 1 /* for O_RDONLY being 0 */ != HWEIGHT32(
O_RDONLY | O_WRONLY | O_RDWR |
O_CREAT | O_EXCL | O_NOCTTY |
O_TRUNC | O_APPEND | /* O_NONBLOCK | */
__O_SYNC | O_DSYNC | FASYNC |
O_DIRECT | O_LARGEFILE | O_DIRECTORY |
O_NOFOLLOW | O_NOATIME | O_CLOEXEC |
- __FMODE_EXEC | O_PATH | __O_TMPFILE
+ __FMODE_EXEC | O_PATH | __O_TMPFILE |
+ __FMODE_NONOTIFY
));
fasync_cache = kmem_cache_create("fasync_cache",
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index ba11079..ed19a7d 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -131,6 +131,13 @@ static void fuse_req_init_context(struct fuse_req *req)
req->in.h.pid = current->pid;
}
+void fuse_set_initialized(struct fuse_conn *fc)
+{
+ /* Make sure stores before this are seen on another CPU */
+ smp_wmb();
+ fc->initialized = 1;
+}
+
static bool fuse_block_alloc(struct fuse_conn *fc, bool for_background)
{
return !fc->initialized || (for_background && fc->blocked);
@@ -155,6 +162,8 @@ static struct fuse_req *__fuse_get_req(struct fuse_conn *fc, unsigned npages,
if (intr)
goto out;
}
+ /* Matches smp_wmb() in fuse_set_initialized() */
+ smp_rmb();
err = -ENOTCONN;
if (!fc->connected)
@@ -253,6 +262,8 @@ struct fuse_req *fuse_get_req_nofail_nopages(struct fuse_conn *fc,
atomic_inc(&fc->num_waiting);
wait_event(fc->blocked_waitq, fc->initialized);
+ /* Matches smp_wmb() in fuse_set_initialized() */
+ smp_rmb();
req = fuse_request_alloc(0);
if (!req)
req = get_reserved_req(fc, file);
@@ -511,6 +522,39 @@ void fuse_request_send(struct fuse_conn *fc, struct fuse_req *req)
}
EXPORT_SYMBOL_GPL(fuse_request_send);
+static void fuse_adjust_compat(struct fuse_conn *fc, struct fuse_args *args)
+{
+ if (fc->minor < 4 && args->in.h.opcode == FUSE_STATFS)
+ args->out.args[0].size = FUSE_COMPAT_STATFS_SIZE;
+
+ if (fc->minor < 9) {
+ switch (args->in.h.opcode) {
+ case FUSE_LOOKUP:
+ case FUSE_CREATE:
+ case FUSE_MKNOD:
+ case FUSE_MKDIR:
+ case FUSE_SYMLINK:
+ case FUSE_LINK:
+ args->out.args[0].size = FUSE_COMPAT_ENTRY_OUT_SIZE;
+ break;
+ case FUSE_GETATTR:
+ case FUSE_SETATTR:
+ args->out.args[0].size = FUSE_COMPAT_ATTR_OUT_SIZE;
+ break;
+ }
+ }
+ if (fc->minor < 12) {
+ switch (args->in.h.opcode) {
+ case FUSE_CREATE:
+ args->in.args[0].size = sizeof(struct fuse_open_in);
+ break;
+ case FUSE_MKNOD:
+ args->in.args[0].size = FUSE_COMPAT_MKNOD_IN_SIZE;
+ break;
+ }
+ }
+}
+
ssize_t fuse_simple_request(struct fuse_conn *fc, struct fuse_args *args)
{
struct fuse_req *req;
@@ -520,6 +564,9 @@ ssize_t fuse_simple_request(struct fuse_conn *fc, struct fuse_args *args)
if (IS_ERR(req))
return PTR_ERR(req);
+ /* Needs to be done after fuse_get_req() so that fc->minor is valid */
+ fuse_adjust_compat(fc, args);
+
req->in.h.opcode = args->in.h.opcode;
req->in.h.nodeid = args->in.h.nodeid;
req->in.numargs = args->in.numargs;
@@ -2127,7 +2174,7 @@ void fuse_abort_conn(struct fuse_conn *fc)
if (fc->connected) {
fc->connected = 0;
fc->blocked = 0;
- fc->initialized = 1;
+ fuse_set_initialized(fc);
end_io_requests(fc);
end_queued_requests(fc);
end_polls(fc);
@@ -2146,7 +2193,7 @@ int fuse_dev_release(struct inode *inode, struct file *file)
spin_lock(&fc->lock);
fc->connected = 0;
fc->blocked = 0;
- fc->initialized = 1;
+ fuse_set_initialized(fc);
end_queued_requests(fc);
end_polls(fc);
wake_up_all(&fc->blocked_waitq);
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 252b8a5..08e7b1a 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -156,10 +156,7 @@ static void fuse_lookup_init(struct fuse_conn *fc, struct fuse_args *args,
args->in.args[0].size = name->len + 1;
args->in.args[0].value = name->name;
args->out.numargs = 1;
- if (fc->minor < 9)
- args->out.args[0].size = FUSE_COMPAT_ENTRY_OUT_SIZE;
- else
- args->out.args[0].size = sizeof(struct fuse_entry_out);
+ args->out.args[0].size = sizeof(struct fuse_entry_out);
args->out.args[0].value = outarg;
}
@@ -422,16 +419,12 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry,
args.in.h.opcode = FUSE_CREATE;
args.in.h.nodeid = get_node_id(dir);
args.in.numargs = 2;
- args.in.args[0].size = fc->minor < 12 ? sizeof(struct fuse_open_in) :
- sizeof(inarg);
+ args.in.args[0].size = sizeof(inarg);
args.in.args[0].value = &inarg;
args.in.args[1].size = entry->d_name.len + 1;
args.in.args[1].value = entry->d_name.name;
args.out.numargs = 2;
- if (fc->minor < 9)
- args.out.args[0].size = FUSE_COMPAT_ENTRY_OUT_SIZE;
- else
- args.out.args[0].size = sizeof(outentry);
+ args.out.args[0].size = sizeof(outentry);
args.out.args[0].value = &outentry;
args.out.args[1].size = sizeof(outopen);
args.out.args[1].value = &outopen;
@@ -539,10 +532,7 @@ static int create_new_entry(struct fuse_conn *fc, struct fuse_args *args,
memset(&outarg, 0, sizeof(outarg));
args->in.h.nodeid = get_node_id(dir);
args->out.numargs = 1;
- if (fc->minor < 9)
- args->out.args[0].size = FUSE_COMPAT_ENTRY_OUT_SIZE;
- else
- args->out.args[0].size = sizeof(outarg);
+ args->out.args[0].size = sizeof(outarg);
args->out.args[0].value = &outarg;
err = fuse_simple_request(fc, args);
if (err)
@@ -592,8 +582,7 @@ static int fuse_mknod(struct inode *dir, struct dentry *entry, umode_t mode,
inarg.umask = current_umask();
args.in.h.opcode = FUSE_MKNOD;
args.in.numargs = 2;
- args.in.args[0].size = fc->minor < 12 ? FUSE_COMPAT_MKNOD_IN_SIZE :
- sizeof(inarg);
+ args.in.args[0].size = sizeof(inarg);
args.in.args[0].value = &inarg;
args.in.args[1].size = entry->d_name.len + 1;
args.in.args[1].value = entry->d_name.name;
@@ -899,10 +888,7 @@ static int fuse_do_getattr(struct inode *inode, struct kstat *stat,
args.in.args[0].size = sizeof(inarg);
args.in.args[0].value = &inarg;
args.out.numargs = 1;
- if (fc->minor < 9)
- args.out.args[0].size = FUSE_COMPAT_ATTR_OUT_SIZE;
- else
- args.out.args[0].size = sizeof(outarg);
+ args.out.args[0].size = sizeof(outarg);
args.out.args[0].value = &outarg;
err = fuse_simple_request(fc, &args);
if (!err) {
@@ -1574,10 +1560,7 @@ static void fuse_setattr_fill(struct fuse_conn *fc, struct fuse_args *args,
args->in.args[0].size = sizeof(*inarg_p);
args->in.args[0].value = inarg_p;
args->out.numargs = 1;
- if (fc->minor < 9)
- args->out.args[0].size = FUSE_COMPAT_ATTR_OUT_SIZE;
- else
- args->out.args[0].size = sizeof(*outarg_p);
+ args->out.args[0].size = sizeof(*outarg_p);
args->out.args[0].value = outarg_p;
}
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index e0fc672..1cdfb07 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -906,4 +906,6 @@ int fuse_write_inode(struct inode *inode, struct writeback_control *wbc);
int fuse_do_setattr(struct inode *inode, struct iattr *attr,
struct file *file);
+void fuse_set_initialized(struct fuse_conn *fc);
+
#endif /* _FS_FUSE_I_H */
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 6749109..f38256e 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -424,8 +424,7 @@ static int fuse_statfs(struct dentry *dentry, struct kstatfs *buf)
args.in.h.opcode = FUSE_STATFS;
args.in.h.nodeid = get_node_id(dentry->d_inode);
args.out.numargs = 1;
- args.out.args[0].size =
- fc->minor < 4 ? FUSE_COMPAT_STATFS_SIZE : sizeof(outarg);
+ args.out.args[0].size = sizeof(outarg);
args.out.args[0].value = &outarg;
err = fuse_simple_request(fc, &args);
if (!err)
@@ -898,7 +897,7 @@ static void process_init_reply(struct fuse_conn *fc, struct fuse_req *req)
fc->max_write = max_t(unsigned, 4096, fc->max_write);
fc->conn_init = 1;
}
- fc->initialized = 1;
+ fuse_set_initialized(fc);
wake_up_all(&fc->blocked_waitq);
}
diff --git a/fs/isofs/rock.c b/fs/isofs/rock.c
index bb63254..735d752 100644
--- a/fs/isofs/rock.c
+++ b/fs/isofs/rock.c
@@ -362,6 +362,9 @@ repeat:
rs.cont_size = isonum_733(rr->u.CE.size);
break;
case SIG('E', 'R'):
+ /* Invalid length of ER tag id? */
+ if (rr->u.ER.len_id + offsetof(struct rock_ridge, u.ER.data) > rr->len)
+ goto out;
ISOFS_SB(inode->i_sb)->s_rock = 1;
printk(KERN_DEBUG "ISO 9660 Extensions: ");
{
diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c
index 37989f0..2d881b3 100644
--- a/fs/kernfs/dir.c
+++ b/fs/kernfs/dir.c
@@ -201,10 +201,14 @@ static unsigned int kernfs_name_hash(const char *name, const void *ns)
static int kernfs_name_compare(unsigned int hash, const char *name,
const void *ns, const struct kernfs_node *kn)
{
- if (hash != kn->hash)
- return hash - kn->hash;
- if (ns != kn->ns)
- return ns - kn->ns;
+ if (hash < kn->hash)
+ return -1;
+ if (hash > kn->hash)
+ return 1;
+ if (ns < kn->ns)
+ return -1;
+ if (ns > kn->ns)
+ return 1;
return strcmp(name, kn->name);
}
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index e94c887..55505cb 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -138,10 +138,6 @@ lockd(void *vrqstp)
dprintk("NFS locking service started (ver " LOCKD_VERSION ").\n");
- if (!nlm_timeout)
- nlm_timeout = LOCKD_DFLT_TIMEO;
- nlmsvc_timeout = nlm_timeout * HZ;
-
/*
* The main request loop. We don't terminate until the last
* NFS mount or NFS daemon has gone away.
@@ -350,6 +346,10 @@ static struct svc_serv *lockd_create_svc(void)
printk(KERN_WARNING
"lockd_up: no pid, %d users??\n", nlmsvc_users);
+ if (!nlm_timeout)
+ nlm_timeout = LOCKD_DFLT_TIMEO;
+ nlmsvc_timeout = nlm_timeout * HZ;
+
serv = svc_create(&nlmsvc_program, LOCKD_BUFSIZE, svc_rpcb_cleanup);
if (!serv) {
printk(KERN_WARNING "lockd_up: create service failed\n");
diff --git a/fs/locks.c b/fs/locks.c
index 735b8d3..59e2f90 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1702,7 +1702,7 @@ static int generic_delete_lease(struct file *filp)
break;
}
trace_generic_delete_lease(inode, fl);
- if (fl)
+ if (fl && IS_LEASE(fl))
error = fl->fl_lmops->lm_change(before, F_UNLCK, &dispose);
spin_unlock(&inode->i_lock);
locks_dispose_list(&dispose);
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index 0331125..953daa4 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -228,6 +228,7 @@ static void nfs4_shutdown_client(struct nfs_client *clp)
kfree(clp->cl_serverowner);
kfree(clp->cl_serverscope);
kfree(clp->cl_implid);
+ kfree(clp->cl_owner_id);
}
void nfs4_free_client(struct nfs_client *clp)
@@ -452,6 +453,14 @@ static void nfs4_swap_callback_idents(struct nfs_client *keep,
spin_unlock(&nn->nfs_client_lock);
}
+static bool nfs4_match_client_owner_id(const struct nfs_client *clp1,
+ const struct nfs_client *clp2)
+{
+ if (clp1->cl_owner_id == NULL || clp2->cl_owner_id == NULL)
+ return true;
+ return strcmp(clp1->cl_owner_id, clp2->cl_owner_id) == 0;
+}
+
/**
* nfs40_walk_client_list - Find server that recognizes a client ID
*
@@ -483,9 +492,6 @@ int nfs40_walk_client_list(struct nfs_client *new,
if (pos->rpc_ops != new->rpc_ops)
continue;
- if (pos->cl_proto != new->cl_proto)
- continue;
-
if (pos->cl_minorversion != new->cl_minorversion)
continue;
@@ -510,6 +516,9 @@ int nfs40_walk_client_list(struct nfs_client *new,
if (pos->cl_clientid != new->cl_clientid)
continue;
+ if (!nfs4_match_client_owner_id(pos, new))
+ continue;
+
atomic_inc(&pos->cl_count);
spin_unlock(&nn->nfs_client_lock);
@@ -566,20 +575,14 @@ static bool nfs4_match_clientids(struct nfs_client *a, struct nfs_client *b)
}
/*
- * Returns true if the server owners match
+ * Returns true if the server major ids match
*/
static bool
-nfs4_match_serverowners(struct nfs_client *a, struct nfs_client *b)
+nfs4_check_clientid_trunking(struct nfs_client *a, struct nfs_client *b)
{
struct nfs41_server_owner *o1 = a->cl_serverowner;
struct nfs41_server_owner *o2 = b->cl_serverowner;
- if (o1->minor_id != o2->minor_id) {
- dprintk("NFS: --> %s server owner minor IDs do not match\n",
- __func__);
- return false;
- }
-
if (o1->major_id_sz != o2->major_id_sz)
goto out_major_mismatch;
if (memcmp(o1->major_id, o2->major_id, o1->major_id_sz) != 0)
@@ -621,9 +624,6 @@ int nfs41_walk_client_list(struct nfs_client *new,
if (pos->rpc_ops != new->rpc_ops)
continue;
- if (pos->cl_proto != new->cl_proto)
- continue;
-
if (pos->cl_minorversion != new->cl_minorversion)
continue;
@@ -654,7 +654,19 @@ int nfs41_walk_client_list(struct nfs_client *new,
if (!nfs4_match_clientids(pos, new))
continue;
- if (!nfs4_match_serverowners(pos, new))
+ /*
+ * Note that session trunking is just a special subcase of
+ * client id trunking. In either case, we want to fall back
+ * to using the existing nfs_client.
+ */
+ if (!nfs4_check_clientid_trunking(pos, new))
+ continue;
+
+ /* Unlike NFSv4.0, we know that NFSv4.1 always uses the
+ * uniform string, however someone might switch the
+ * uniquifier string on us.
+ */
+ if (!nfs4_match_client_owner_id(pos, new))
continue;
atomic_inc(&pos->cl_count);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index e7f8d5f..c347705 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1117,8 +1117,6 @@ static int can_open_delegated(struct nfs_delegation *delegation, fmode_t fmode)
return 0;
if ((delegation->type & fmode) != fmode)
return 0;
- if (test_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags))
- return 0;
if (test_bit(NFS_DELEGATION_RETURNING, &delegation->flags))
return 0;
nfs_mark_delegation_referenced(delegation);
@@ -4917,11 +4915,14 @@ static void nfs4_init_boot_verifier(const struct nfs_client *clp,
}
static unsigned int
-nfs4_init_nonuniform_client_string(const struct nfs_client *clp,
+nfs4_init_nonuniform_client_string(struct nfs_client *clp,
char *buf, size_t len)
{
unsigned int result;
+ if (clp->cl_owner_id != NULL)
+ return strlcpy(buf, clp->cl_owner_id, len);
+
rcu_read_lock();
result = scnprintf(buf, len, "Linux NFSv4.0 %s/%s %s",
clp->cl_ipaddr,
@@ -4930,24 +4931,32 @@ nfs4_init_nonuniform_client_string(const struct nfs_client *clp,
rpc_peeraddr2str(clp->cl_rpcclient,
RPC_DISPLAY_PROTO));
rcu_read_unlock();
+ clp->cl_owner_id = kstrdup(buf, GFP_KERNEL);
return result;
}
static unsigned int
-nfs4_init_uniform_client_string(const struct nfs_client *clp,
+nfs4_init_uniform_client_string(struct nfs_client *clp,
char *buf, size_t len)
{
const char *nodename = clp->cl_rpcclient->cl_nodename;
+ unsigned int result;
+
+ if (clp->cl_owner_id != NULL)
+ return strlcpy(buf, clp->cl_owner_id, len);
if (nfs4_client_id_uniquifier[0] != '\0')
- return scnprintf(buf, len, "Linux NFSv%u.%u %s/%s",
+ result = scnprintf(buf, len, "Linux NFSv%u.%u %s/%s",
clp->rpc_ops->version,
clp->cl_minorversion,
nfs4_client_id_uniquifier,
nodename);
- return scnprintf(buf, len, "Linux NFSv%u.%u %s",
+ else
+ result = scnprintf(buf, len, "Linux NFSv%u.%u %s",
clp->rpc_ops->version, clp->cl_minorversion,
nodename);
+ clp->cl_owner_id = kstrdup(buf, GFP_KERNEL);
+ return result;
}
/*
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 3550a9c..c06a1ba 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3897,11 +3897,11 @@ nfs4_set_delegation(struct nfs4_client *clp, struct svc_fh *fh,
status = nfs4_setlease(dp);
goto out;
}
- atomic_inc(&fp->fi_delegees);
if (fp->fi_had_conflict) {
status = -EAGAIN;
goto out_unlock;
}
+ atomic_inc(&fp->fi_delegees);
hash_delegation_locked(dp, fp);
status = 0;
out_unlock:
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index c991616..bff8567 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -259,16 +259,15 @@ static ssize_t fanotify_read(struct file *file, char __user *buf,
struct fsnotify_event *kevent;
char __user *start;
int ret;
- DEFINE_WAIT(wait);
+ DEFINE_WAIT_FUNC(wait, woken_wake_function);
start = buf;
group = file->private_data;
pr_debug("%s: group=%p\n", __func__, group);
+ add_wait_queue(&group->notification_waitq, &wait);
while (1) {
- prepare_to_wait(&group->notification_waitq, &wait, TASK_INTERRUPTIBLE);
-
mutex_lock(&group->notification_mutex);
kevent = get_one_event(group, count);
mutex_unlock(&group->notification_mutex);
@@ -289,7 +288,8 @@ static ssize_t fanotify_read(struct file *file, char __user *buf,
if (start != buf)
break;
- schedule();
+
+ wait_woken(&wait, TASK_INTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT);
continue;
}
@@ -318,8 +318,8 @@ static ssize_t fanotify_read(struct file *file, char __user *buf,
buf += ret;
count -= ret;
}
+ remove_wait_queue(&group->notification_waitq, &wait);
- finish_wait(&group->notification_waitq, &wait);
if (start != buf && ret != -EFAULT)
ret = buf - start;
return ret;
diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
index 79b5af5..cecd875 100644
--- a/fs/ocfs2/dlm/dlmrecovery.c
+++ b/fs/ocfs2/dlm/dlmrecovery.c
@@ -2023,11 +2023,8 @@ leave:
dlm_lockres_drop_inflight_ref(dlm, res);
spin_unlock(&res->spinlock);
- if (ret < 0) {
+ if (ret < 0)
mlog_errno(ret);
- if (newlock)
- dlm_lock_put(newlock);
- }
return ret;
}
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index b931e04..914c121 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -94,6 +94,14 @@ static int ocfs2_create_symlink_data(struct ocfs2_super *osb,
struct inode *inode,
const char *symname);
+static int ocfs2_double_lock(struct ocfs2_super *osb,
+ struct buffer_head **bh1,
+ struct inode *inode1,
+ struct buffer_head **bh2,
+ struct inode *inode2,
+ int rename);
+
+static void ocfs2_double_unlock(struct inode *inode1, struct inode *inode2);
/* An orphan dir name is an 8 byte value, printed as a hex string */
#define OCFS2_ORPHAN_NAMELEN ((int)(2 * sizeof(u64)))
@@ -678,8 +686,10 @@ static int ocfs2_link(struct dentry *old_dentry,
{
handle_t *handle;
struct inode *inode = old_dentry->d_inode;
+ struct inode *old_dir = old_dentry->d_parent->d_inode;
int err;
struct buffer_head *fe_bh = NULL;
+ struct buffer_head *old_dir_bh = NULL;
struct buffer_head *parent_fe_bh = NULL;
struct ocfs2_dinode *fe = NULL;
struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
@@ -696,19 +706,33 @@ static int ocfs2_link(struct dentry *old_dentry,
dquot_initialize(dir);
- err = ocfs2_inode_lock_nested(dir, &parent_fe_bh, 1, OI_LS_PARENT);
+ err = ocfs2_double_lock(osb, &old_dir_bh, old_dir,
+ &parent_fe_bh, dir, 0);
if (err < 0) {
if (err != -ENOENT)
mlog_errno(err);
return err;
}
+ /* make sure both dirs have bhs
+ * get an extra ref on old_dir_bh if old==new */
+ if (!parent_fe_bh) {
+ if (old_dir_bh) {
+ parent_fe_bh = old_dir_bh;
+ get_bh(parent_fe_bh);
+ } else {
+ mlog(ML_ERROR, "%s: no old_dir_bh!\n", osb->uuid_str);
+ err = -EIO;
+ goto out;
+ }
+ }
+
if (!dir->i_nlink) {
err = -ENOENT;
goto out;
}
- err = ocfs2_lookup_ino_from_name(dir, old_dentry->d_name.name,
+ err = ocfs2_lookup_ino_from_name(old_dir, old_dentry->d_name.name,
old_dentry->d_name.len, &old_de_ino);
if (err) {
err = -ENOENT;
@@ -801,10 +825,11 @@ out_unlock_inode:
ocfs2_inode_unlock(inode, 1);
out:
- ocfs2_inode_unlock(dir, 1);
+ ocfs2_double_unlock(old_dir, dir);
brelse(fe_bh);
brelse(parent_fe_bh);
+ brelse(old_dir_bh);
ocfs2_free_dir_lookup_result(&lookup);
@@ -1072,14 +1097,15 @@ static int ocfs2_check_if_ancestor(struct ocfs2_super *osb,
}
/*
- * The only place this should be used is rename!
+ * The only place this should be used is rename and link!
* if they have the same id, then the 1st one is the only one locked.
*/
static int ocfs2_double_lock(struct ocfs2_super *osb,
struct buffer_head **bh1,
struct inode *inode1,
struct buffer_head **bh2,
- struct inode *inode2)
+ struct inode *inode2,
+ int rename)
{
int status;
int inode1_is_ancestor, inode2_is_ancestor;
@@ -1127,7 +1153,7 @@ static int ocfs2_double_lock(struct ocfs2_super *osb,
}
/* lock id2 */
status = ocfs2_inode_lock_nested(inode2, bh2, 1,
- OI_LS_RENAME1);
+ rename == 1 ? OI_LS_RENAME1 : OI_LS_PARENT);
if (status < 0) {
if (status != -ENOENT)
mlog_errno(status);
@@ -1136,7 +1162,8 @@ static int ocfs2_double_lock(struct ocfs2_super *osb,
}
/* lock id1 */
- status = ocfs2_inode_lock_nested(inode1, bh1, 1, OI_LS_RENAME2);
+ status = ocfs2_inode_lock_nested(inode1, bh1, 1,
+ rename == 1 ? OI_LS_RENAME2 : OI_LS_PARENT);
if (status < 0) {
/*
* An error return must mean that no cluster locks
@@ -1252,7 +1279,7 @@ static int ocfs2_rename(struct inode *old_dir,
/* if old and new are the same, this'll just do one lock. */
status = ocfs2_double_lock(osb, &old_dir_bh, old_dir,
- &new_dir_bh, new_dir);
+ &new_dir_bh, new_dir, 1);
if (status < 0) {
mlog_errno(status);
goto bail;
diff --git a/fs/udf/dir.c b/fs/udf/dir.c
index a012c51..05e90ed 100644
--- a/fs/udf/dir.c
+++ b/fs/udf/dir.c
@@ -57,6 +57,7 @@ static int udf_readdir(struct file *file, struct dir_context *ctx)
sector_t offset;
int i, num, ret = 0;
struct extent_position epos = { NULL, 0, {0, 0} };
+ struct super_block *sb = dir->i_sb;
if (ctx->pos == 0) {
if (!dir_emit_dot(file, ctx))
@@ -76,16 +77,16 @@ static int udf_readdir(struct file *file, struct dir_context *ctx)
if (nf_pos == 0)
nf_pos = udf_ext0_offset(dir);
- fibh.soffset = fibh.eoffset = nf_pos & (dir->i_sb->s_blocksize - 1);
+ fibh.soffset = fibh.eoffset = nf_pos & (sb->s_blocksize - 1);
if (iinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
- if (inode_bmap(dir, nf_pos >> dir->i_sb->s_blocksize_bits,
+ if (inode_bmap(dir, nf_pos >> sb->s_blocksize_bits,
&epos, &eloc, &elen, &offset)
!= (EXT_RECORDED_ALLOCATED >> 30)) {
ret = -ENOENT;
goto out;
}
- block = udf_get_lb_pblock(dir->i_sb, &eloc, offset);
- if ((++offset << dir->i_sb->s_blocksize_bits) < elen) {
+ block = udf_get_lb_pblock(sb, &eloc, offset);
+ if ((++offset << sb->s_blocksize_bits) < elen) {
if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
epos.offset -= sizeof(struct short_ad);
else if (iinfo->i_alloc_type ==
@@ -95,18 +96,18 @@ static int udf_readdir(struct file *file, struct dir_context *ctx)
offset = 0;
}
- if (!(fibh.sbh = fibh.ebh = udf_tread(dir->i_sb, block))) {
+ if (!(fibh.sbh = fibh.ebh = udf_tread(sb, block))) {
ret = -EIO;
goto out;
}
- if (!(offset & ((16 >> (dir->i_sb->s_blocksize_bits - 9)) - 1))) {
- i = 16 >> (dir->i_sb->s_blocksize_bits - 9);
- if (i + offset > (elen >> dir->i_sb->s_blocksize_bits))
- i = (elen >> dir->i_sb->s_blocksize_bits) - offset;
+ if (!(offset & ((16 >> (sb->s_blocksize_bits - 9)) - 1))) {
+ i = 16 >> (sb->s_blocksize_bits - 9);
+ if (i + offset > (elen >> sb->s_blocksize_bits))
+ i = (elen >> sb->s_blocksize_bits) - offset;
for (num = 0; i > 0; i--) {
- block = udf_get_lb_pblock(dir->i_sb, &eloc, offset + i);
- tmp = udf_tgetblk(dir->i_sb, block);
+ block = udf_get_lb_pblock(sb, &eloc, offset + i);
+ tmp = udf_tgetblk(sb, block);
if (tmp && !buffer_uptodate(tmp) && !buffer_locked(tmp))
bha[num++] = tmp;
else
@@ -152,12 +153,12 @@ static int udf_readdir(struct file *file, struct dir_context *ctx)
}
if ((cfi.fileCharacteristics & FID_FILE_CHAR_DELETED) != 0) {
- if (!UDF_QUERY_FLAG(dir->i_sb, UDF_FLAG_UNDELETE))
+ if (!UDF_QUERY_FLAG(sb, UDF_FLAG_UNDELETE))
continue;
}
if ((cfi.fileCharacteristics & FID_FILE_CHAR_HIDDEN) != 0) {
- if (!UDF_QUERY_FLAG(dir->i_sb, UDF_FLAG_UNHIDE))
+ if (!UDF_QUERY_FLAG(sb, UDF_FLAG_UNHIDE))
continue;
}
@@ -167,12 +168,12 @@ static int udf_readdir(struct file *file, struct dir_context *ctx)
continue;
}
- flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi);
+ flen = udf_get_filename(sb, nameptr, lfi, fname, UDF_NAME_LEN);
if (!flen)
continue;
tloc = lelb_to_cpu(cfi.icb.extLocation);
- iblock = udf_get_lb_pblock(dir->i_sb, &tloc, 0);
+ iblock = udf_get_lb_pblock(sb, &tloc, 0);
if (!dir_emit(ctx, fname, flen, iblock, DT_UNKNOWN))
goto out;
} /* end while */
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index c9b4df5..5bc71d9 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -1489,6 +1489,20 @@ reread:
}
inode->i_generation = iinfo->i_unique;
+ /* Sanity checks for files in ICB so that we don't get confused later */
+ if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
+ /*
+ * For file in ICB data is stored in allocation descriptor
+ * so sizes should match
+ */
+ if (iinfo->i_lenAlloc != inode->i_size)
+ goto out;
+ /* File in ICB has to fit in there... */
+ if (inode->i_size > inode->i_sb->s_blocksize -
+ udf_file_entry_alloc_offset(inode))
+ goto out;
+ }
+
switch (fe->icbTag.fileType) {
case ICBTAG_FILE_TYPE_DIRECTORY:
inode->i_op = &udf_dir_inode_operations;
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index c12e260..33b246b 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -159,18 +159,19 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
struct udf_inode_info *dinfo = UDF_I(dir);
int isdotdot = child->len == 2 &&
child->name[0] == '.' && child->name[1] == '.';
+ struct super_block *sb = dir->i_sb;
size = udf_ext0_offset(dir) + dir->i_size;
f_pos = udf_ext0_offset(dir);
fibh->sbh = fibh->ebh = NULL;
- fibh->soffset = fibh->eoffset = f_pos & (dir->i_sb->s_blocksize - 1);
+ fibh->soffset = fibh->eoffset = f_pos & (sb->s_blocksize - 1);
if (dinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
- if (inode_bmap(dir, f_pos >> dir->i_sb->s_blocksize_bits, &epos,
+ if (inode_bmap(dir, f_pos >> sb->s_blocksize_bits, &epos,
&eloc, &elen, &offset) != (EXT_RECORDED_ALLOCATED >> 30))
goto out_err;
- block = udf_get_lb_pblock(dir->i_sb, &eloc, offset);
- if ((++offset << dir->i_sb->s_blocksize_bits) < elen) {
+ block = udf_get_lb_pblock(sb, &eloc, offset);
+ if ((++offset << sb->s_blocksize_bits) < elen) {
if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
epos.offset -= sizeof(struct short_ad);
else if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
@@ -178,7 +179,7 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
} else
offset = 0;
- fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block);
+ fibh->sbh = fibh->ebh = udf_tread(sb, block);
if (!fibh->sbh)
goto out_err;
}
@@ -217,12 +218,12 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
}
if ((cfi->fileCharacteristics & FID_FILE_CHAR_DELETED) != 0) {
- if (!UDF_QUERY_FLAG(dir->i_sb, UDF_FLAG_UNDELETE))
+ if (!UDF_QUERY_FLAG(sb, UDF_FLAG_UNDELETE))
continue;
}
if ((cfi->fileCharacteristics & FID_FILE_CHAR_HIDDEN) != 0) {
- if (!UDF_QUERY_FLAG(dir->i_sb, UDF_FLAG_UNHIDE))
+ if (!UDF_QUERY_FLAG(sb, UDF_FLAG_UNHIDE))
continue;
}
@@ -233,7 +234,7 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
if (!lfi)
continue;
- flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi);
+ flen = udf_get_filename(sb, nameptr, lfi, fname, UDF_NAME_LEN);
if (flen && udf_match(flen, fname, child->len, child->name))
goto out_ok;
}
diff --git a/fs/udf/symlink.c b/fs/udf/symlink.c
index 6fb7945..ac10ca9 100644
--- a/fs/udf/symlink.c
+++ b/fs/udf/symlink.c
@@ -30,49 +30,73 @@
#include <linux/buffer_head.h>
#include "udf_i.h"
-static void udf_pc_to_char(struct super_block *sb, unsigned char *from,
- int fromlen, unsigned char *to)
+static int udf_pc_to_char(struct super_block *sb, unsigned char *from,
+ int fromlen, unsigned char *to, int tolen)
{
struct pathComponent *pc;
int elen = 0;
+ int comp_len;
unsigned char *p = to;
+ /* Reserve one byte for terminating \0 */
+ tolen--;
while (elen < fromlen) {
pc = (struct pathComponent *)(from + elen);
+ elen += sizeof(struct pathComponent);
switch (pc->componentType) {
case 1:
/*
* Symlink points to some place which should be agreed
* upon between originator and receiver of the media. Ignore.
*/
- if (pc->lengthComponentIdent > 0)
+ if (pc->lengthComponentIdent > 0) {
+ elen += pc->lengthComponentIdent;
break;
+ }
/* Fall through */
case 2:
+ if (tolen == 0)
+ return -ENAMETOOLONG;
p = to;
*p++ = '/';
+ tolen--;
break;
case 3:
+ if (tolen < 3)
+ return -ENAMETOOLONG;
memcpy(p, "../", 3);
p += 3;
+ tolen -= 3;
break;
case 4:
+ if (tolen < 2)
+ return -ENAMETOOLONG;
memcpy(p, "./", 2);
p += 2;
+ tolen -= 2;
/* that would be . - just ignore */
break;
case 5:
- p += udf_get_filename(sb, pc->componentIdent, p,
- pc->lengthComponentIdent);
+ elen += pc->lengthComponentIdent;
+ if (elen > fromlen)
+ return -EIO;
+ comp_len = udf_get_filename(sb, pc->componentIdent,
+ pc->lengthComponentIdent,
+ p, tolen);
+ p += comp_len;
+ tolen -= comp_len;
+ if (tolen == 0)
+ return -ENAMETOOLONG;
*p++ = '/';
+ tolen--;
break;
}
- elen += sizeof(struct pathComponent) + pc->lengthComponentIdent;
}
if (p > to + 1)
p[-1] = '\0';
else
p[0] = '\0';
+ return 0;
}
static int udf_symlink_filler(struct file *file, struct page *page)
@@ -80,11 +104,17 @@ static int udf_symlink_filler(struct file *file, struct page *page)
struct inode *inode = page->mapping->host;
struct buffer_head *bh = NULL;
unsigned char *symlink;
- int err = -EIO;
+ int err;
unsigned char *p = kmap(page);
struct udf_inode_info *iinfo;
uint32_t pos;
+ /* We don't support symlinks longer than one block */
+ if (inode->i_size > inode->i_sb->s_blocksize) {
+ err = -ENAMETOOLONG;
+ goto out_unmap;
+ }
+
iinfo = UDF_I(inode);
pos = udf_block_map(inode, 0);
@@ -94,14 +124,18 @@ static int udf_symlink_filler(struct file *file, struct page *page)
} else {
bh = sb_bread(inode->i_sb, pos);
- if (!bh)
- goto out;
+ if (!bh) {
+ err = -EIO;
+ goto out_unlock_inode;
+ }
symlink = bh->b_data;
}
- udf_pc_to_char(inode->i_sb, symlink, inode->i_size, p);
+ err = udf_pc_to_char(inode->i_sb, symlink, inode->i_size, p, PAGE_SIZE);
brelse(bh);
+ if (err)
+ goto out_unlock_inode;
up_read(&iinfo->i_data_sem);
SetPageUptodate(page);
@@ -109,9 +143,10 @@ static int udf_symlink_filler(struct file *file, struct page *page)
unlock_page(page);
return 0;
-out:
+out_unlock_inode:
up_read(&iinfo->i_data_sem);
SetPageError(page);
+out_unmap:
kunmap(page);
unlock_page(page);
return err;
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
index 1cc3c99..47bb3f5 100644
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -211,7 +211,8 @@ udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc,
}
/* unicode.c */
-extern int udf_get_filename(struct super_block *, uint8_t *, uint8_t *, int);
+extern int udf_get_filename(struct super_block *, uint8_t *, int, uint8_t *,
+ int);
extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *,
int);
extern int udf_build_ustr(struct ustr *, dstring *, int);
diff --git a/fs/udf/unicode.c b/fs/udf/unicode.c
index afd470e..b84fee3 100644
--- a/fs/udf/unicode.c
+++ b/fs/udf/unicode.c
@@ -28,7 +28,8 @@
#include "udf_sb.h"
-static int udf_translate_to_linux(uint8_t *, uint8_t *, int, uint8_t *, int);
+static int udf_translate_to_linux(uint8_t *, int, uint8_t *, int, uint8_t *,
+ int);
static int udf_char_to_ustr(struct ustr *dest, const uint8_t *src, int strlen)
{
@@ -333,8 +334,8 @@ try_again:
return u_len + 1;
}
-int udf_get_filename(struct super_block *sb, uint8_t *sname, uint8_t *dname,
- int flen)
+int udf_get_filename(struct super_block *sb, uint8_t *sname, int slen,
+ uint8_t *dname, int dlen)
{
struct ustr *filename, *unifilename;
int len = 0;
@@ -347,7 +348,7 @@ int udf_get_filename(struct super_block *sb, uint8_t *sname, uint8_t *dname,
if (!unifilename)
goto out1;
- if (udf_build_ustr_exact(unifilename, sname, flen))
+ if (udf_build_ustr_exact(unifilename, sname, slen))
goto out2;
if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) {
@@ -366,7 +367,8 @@ int udf_get_filename(struct super_block *sb, uint8_t *sname, uint8_t *dname,
} else
goto out2;
- len = udf_translate_to_linux(dname, filename->u_name, filename->u_len,
+ len = udf_translate_to_linux(dname, dlen,
+ filename->u_name, filename->u_len,
unifilename->u_name, unifilename->u_len);
out2:
kfree(unifilename);
@@ -403,10 +405,12 @@ int udf_put_filename(struct super_block *sb, const uint8_t *sname,
#define EXT_MARK '.'
#define CRC_MARK '#'
#define EXT_SIZE 5
+/* Number of chars we need to store generated CRC to make filename unique */
+#define CRC_LEN 5
-static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName,
- int udfLen, uint8_t *fidName,
- int fidNameLen)
+static int udf_translate_to_linux(uint8_t *newName, int newLen,
+ uint8_t *udfName, int udfLen,
+ uint8_t *fidName, int fidNameLen)
{
int index, newIndex = 0, needsCRC = 0;
int extIndex = 0, newExtIndex = 0, hasExt = 0;
@@ -439,7 +443,7 @@ static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName,
newExtIndex = newIndex;
}
}
- if (newIndex < 256)
+ if (newIndex < newLen)
newName[newIndex++] = curr;
else
needsCRC = 1;
@@ -467,13 +471,13 @@ static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName,
}
ext[localExtIndex++] = curr;
}
- maxFilenameLen = 250 - localExtIndex;
+ maxFilenameLen = newLen - CRC_LEN - localExtIndex;
if (newIndex > maxFilenameLen)
newIndex = maxFilenameLen;
else
newIndex = newExtIndex;
- } else if (newIndex > 250)
- newIndex = 250;
+ } else if (newIndex > newLen - CRC_LEN)
+ newIndex = newLen - CRC_LEN;
newName[newIndex++] = CRC_MARK;
valueCRC = crc_itu_t(0, fidName, fidNameLen);
newName[newIndex++] = hex_asc_upper_hi(valueCRC >> 8);