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authorDave Airlie <airlied@redhat.com>2017-04-19 11:07:14 +1000
committerDave Airlie <airlied@redhat.com>2017-04-19 11:07:14 +1000
commit856ee92e8602bd86d34388ac08381c5cb3918756 (patch)
treec3bed2bf85214f78239724adb34a1c2d6ec8444d /fs
parenta6a5c983b35e579071370d4eb2b4ed8ad5c18da9 (diff)
parent4f7d029b9bf009fbee76bb10c0c4351a1870d2f3 (diff)
downloadlwn-856ee92e8602bd86d34388ac08381c5cb3918756.tar.gz
lwn-856ee92e8602bd86d34388ac08381c5cb3918756.zip
Merge tag 'v4.11-rc7' into drm-next
Backmerge Linux 4.11-rc7 from Linus tree, to fix some conflicts that were causing problems with the rerere cache in drm-tip.
Diffstat (limited to 'fs')
-rw-r--r--fs/btrfs/inode.c22
-rw-r--r--fs/btrfs/super.c3
-rw-r--r--fs/btrfs/volumes.c2
-rw-r--r--fs/cifs/cifsglob.h1
-rw-r--r--fs/cifs/cifsproto.h3
-rw-r--r--fs/cifs/cifssmb.c15
-rw-r--r--fs/cifs/connect.c3
-rw-r--r--fs/cifs/file.c6
-rw-r--r--fs/cifs/smb2ops.c4
-rw-r--r--fs/cifs/smb2pdu.c19
-rw-r--r--fs/hugetlbfs/inode.c15
-rw-r--r--fs/namei.c3
-rw-r--r--fs/orangefs/devorangefs-req.c9
-rw-r--r--fs/orangefs/orangefs-kernel.h1
-rw-r--r--fs/orangefs/super.c23
-rw-r--r--fs/proc/task_mmu.c9
16 files changed, 90 insertions, 48 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index a18510be76c1..5e71f1ea3391 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7910,7 +7910,6 @@ struct btrfs_retry_complete {
static void btrfs_retry_endio_nocsum(struct bio *bio)
{
struct btrfs_retry_complete *done = bio->bi_private;
- struct inode *inode;
struct bio_vec *bvec;
int i;
@@ -7918,12 +7917,12 @@ static void btrfs_retry_endio_nocsum(struct bio *bio)
goto end;
ASSERT(bio->bi_vcnt == 1);
- inode = bio->bi_io_vec->bv_page->mapping->host;
- ASSERT(bio->bi_io_vec->bv_len == btrfs_inode_sectorsize(inode));
+ ASSERT(bio->bi_io_vec->bv_len == btrfs_inode_sectorsize(done->inode));
done->uptodate = 1;
bio_for_each_segment_all(bvec, bio, i)
- clean_io_failure(BTRFS_I(done->inode), done->start, bvec->bv_page, 0);
+ clean_io_failure(BTRFS_I(done->inode), done->start,
+ bvec->bv_page, 0);
end:
complete(&done->done);
bio_put(bio);
@@ -7973,8 +7972,10 @@ next_block_or_try_again:
start += sectorsize;
- if (nr_sectors--) {
+ nr_sectors--;
+ if (nr_sectors) {
pgoff += sectorsize;
+ ASSERT(pgoff < PAGE_SIZE);
goto next_block_or_try_again;
}
}
@@ -7986,9 +7987,7 @@ static void btrfs_retry_endio(struct bio *bio)
{
struct btrfs_retry_complete *done = bio->bi_private;
struct btrfs_io_bio *io_bio = btrfs_io_bio(bio);
- struct inode *inode;
struct bio_vec *bvec;
- u64 start;
int uptodate;
int ret;
int i;
@@ -7998,11 +7997,8 @@ static void btrfs_retry_endio(struct bio *bio)
uptodate = 1;
- start = done->start;
-
ASSERT(bio->bi_vcnt == 1);
- inode = bio->bi_io_vec->bv_page->mapping->host;
- ASSERT(bio->bi_io_vec->bv_len == btrfs_inode_sectorsize(inode));
+ ASSERT(bio->bi_io_vec->bv_len == btrfs_inode_sectorsize(done->inode));
bio_for_each_segment_all(bvec, bio, i) {
ret = __readpage_endio_check(done->inode, io_bio, i,
@@ -8080,8 +8076,10 @@ next:
ASSERT(nr_sectors);
- if (--nr_sectors) {
+ nr_sectors--;
+ if (nr_sectors) {
pgoff += sectorsize;
+ ASSERT(pgoff < PAGE_SIZE);
goto next_block;
}
}
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index da687dc79cce..9530a333d302 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -549,16 +549,19 @@ int btrfs_parse_options(struct btrfs_fs_info *info, char *options,
case Opt_ssd:
btrfs_set_and_info(info, SSD,
"use ssd allocation scheme");
+ btrfs_clear_opt(info->mount_opt, NOSSD);
break;
case Opt_ssd_spread:
btrfs_set_and_info(info, SSD_SPREAD,
"use spread ssd allocation scheme");
btrfs_set_opt(info->mount_opt, SSD);
+ btrfs_clear_opt(info->mount_opt, NOSSD);
break;
case Opt_nossd:
btrfs_set_and_info(info, NOSSD,
"not using ssd allocation scheme");
btrfs_clear_opt(info->mount_opt, SSD);
+ btrfs_clear_opt(info->mount_opt, SSD_SPREAD);
break;
case Opt_barrier:
btrfs_clear_and_info(info, NOBARRIER,
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 73d56eef5e60..ab8a66d852f9 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -6213,7 +6213,7 @@ int btrfs_map_bio(struct btrfs_fs_info *fs_info, struct bio *bio,
for (dev_nr = 0; dev_nr < total_devs; dev_nr++) {
dev = bbio->stripes[dev_nr].dev;
if (!dev || !dev->bdev ||
- (bio_op(bio) == REQ_OP_WRITE && !dev->writeable)) {
+ (bio_op(first_bio) == REQ_OP_WRITE && !dev->writeable)) {
bbio_error(bbio, first_bio, logical);
continue;
}
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index d07f13a63369..37f5a41cc50c 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -948,7 +948,6 @@ struct cifs_tcon {
bool use_persistent:1; /* use persistent instead of durable handles */
#ifdef CONFIG_CIFS_SMB2
bool print:1; /* set if connection to printer share */
- bool bad_network_name:1; /* set if ret status STATUS_BAD_NETWORK_NAME */
__le32 capabilities;
__u32 share_flags;
__u32 maximal_access;
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index ec5e5e514fdd..97e5d236d265 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -79,8 +79,7 @@ extern void cifs_delete_mid(struct mid_q_entry *mid);
extern void cifs_wake_up_task(struct mid_q_entry *mid);
extern int cifs_handle_standard(struct TCP_Server_Info *server,
struct mid_q_entry *mid);
-extern int cifs_discard_remaining_data(struct TCP_Server_Info *server,
- char *buf);
+extern int cifs_discard_remaining_data(struct TCP_Server_Info *server);
extern int cifs_call_async(struct TCP_Server_Info *server,
struct smb_rqst *rqst,
mid_receive_t *receive, mid_callback_t *callback,
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 967b92631807..5d21f00ae341 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -1400,9 +1400,9 @@ openRetry:
* current bigbuf.
*/
int
-cifs_discard_remaining_data(struct TCP_Server_Info *server, char *buf)
+cifs_discard_remaining_data(struct TCP_Server_Info *server)
{
- unsigned int rfclen = get_rfc1002_length(buf);
+ unsigned int rfclen = get_rfc1002_length(server->smallbuf);
int remaining = rfclen + 4 - server->total_read;
while (remaining > 0) {
@@ -1426,8 +1426,10 @@ cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid)
int length;
struct cifs_readdata *rdata = mid->callback_data;
- length = cifs_discard_remaining_data(server, mid->resp_buf);
+ length = cifs_discard_remaining_data(server);
dequeue_mid(mid, rdata->result);
+ mid->resp_buf = server->smallbuf;
+ server->smallbuf = NULL;
return length;
}
@@ -1459,7 +1461,7 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
if (server->ops->is_status_pending &&
server->ops->is_status_pending(buf, server, 0)) {
- cifs_discard_remaining_data(server, buf);
+ cifs_discard_remaining_data(server);
return -1;
}
@@ -1519,9 +1521,6 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
cifs_dbg(FYI, "0: iov_base=%p iov_len=%u\n",
rdata->iov[0].iov_base, server->total_read);
- mid->resp_buf = server->smallbuf;
- server->smallbuf = NULL;
-
/* how much data is in the response? */
data_len = server->ops->read_data_length(buf);
if (data_offset + data_len > buflen) {
@@ -1544,6 +1543,8 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
return cifs_readv_discard(server, mid);
dequeue_mid(mid, false);
+ mid->resp_buf = server->smallbuf;
+ server->smallbuf = NULL;
return length;
}
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 0c7596cef4b8..d82467cfb0e2 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -3753,6 +3753,9 @@ try_mount_again:
if (IS_ERR(tcon)) {
rc = PTR_ERR(tcon);
tcon = NULL;
+ if (rc == -EACCES)
+ goto mount_fail_check;
+
goto remote_path_check;
}
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index aa3debbba826..21d404535739 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -2597,7 +2597,7 @@ cifs_write_from_iter(loff_t offset, size_t len, struct iov_iter *from,
wdata->credits = credits;
if (!wdata->cfile->invalidHandle ||
- !cifs_reopen_file(wdata->cfile, false))
+ !(rc = cifs_reopen_file(wdata->cfile, false)))
rc = server->ops->async_writev(wdata,
cifs_uncached_writedata_release);
if (rc) {
@@ -3022,7 +3022,7 @@ cifs_send_async_read(loff_t offset, size_t len, struct cifsFileInfo *open_file,
rdata->credits = credits;
if (!rdata->cfile->invalidHandle ||
- !cifs_reopen_file(rdata->cfile, true))
+ !(rc = cifs_reopen_file(rdata->cfile, true)))
rc = server->ops->async_readv(rdata);
error:
if (rc) {
@@ -3617,7 +3617,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
}
if (!rdata->cfile->invalidHandle ||
- !cifs_reopen_file(rdata->cfile, true))
+ !(rc = cifs_reopen_file(rdata->cfile, true)))
rc = server->ops->async_readv(rdata);
if (rc) {
add_credits_and_wake_if(server, rdata->credits, 0);
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 7b12a727947e..152e37f2ad92 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -2195,7 +2195,7 @@ receive_encrypted_read(struct TCP_Server_Info *server, struct mid_q_entry **mid)
if (rc)
goto free_pages;
- rc = cifs_discard_remaining_data(server, buf);
+ rc = cifs_discard_remaining_data(server);
if (rc)
goto free_pages;
@@ -2221,7 +2221,7 @@ free_pages:
kfree(pages);
return rc;
discard_data:
- cifs_discard_remaining_data(server, buf);
+ cifs_discard_remaining_data(server);
goto free_pages;
}
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 66fa1b941cdf..02da648041fc 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -562,8 +562,10 @@ SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses)
* but for time being this is our only auth choice so doesn't matter.
* We just found a server which sets blob length to zero expecting raw.
*/
- if (blob_length == 0)
+ if (blob_length == 0) {
cifs_dbg(FYI, "missing security blob on negprot\n");
+ server->sec_ntlmssp = true;
+ }
rc = cifs_enable_signing(server, ses->sign);
if (rc)
@@ -1171,9 +1173,6 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
else
return -EIO;
- if (tcon && tcon->bad_network_name)
- return -ENOENT;
-
unc_path = kmalloc(MAX_SHARENAME_LENGTH * 2, GFP_KERNEL);
if (unc_path == NULL)
return -ENOMEM;
@@ -1277,8 +1276,6 @@ tcon_exit:
tcon_error_exit:
if (rsp->hdr.sync_hdr.Status == STATUS_BAD_NETWORK_NAME) {
cifs_dbg(VFS, "BAD_NETWORK_NAME: %s\n", tree);
- if (tcon)
- tcon->bad_network_name = true;
}
goto tcon_exit;
}
@@ -2181,6 +2178,9 @@ void smb2_reconnect_server(struct work_struct *work)
struct cifs_tcon *tcon, *tcon2;
struct list_head tmp_list;
int tcon_exist = false;
+ int rc;
+ int resched = false;
+
/* Prevent simultaneous reconnects that can corrupt tcon->rlist list */
mutex_lock(&server->reconnect_mutex);
@@ -2208,13 +2208,18 @@ void smb2_reconnect_server(struct work_struct *work)
spin_unlock(&cifs_tcp_ses_lock);
list_for_each_entry_safe(tcon, tcon2, &tmp_list, rlist) {
- if (!smb2_reconnect(SMB2_INTERNAL_CMD, tcon))
+ rc = smb2_reconnect(SMB2_INTERNAL_CMD, tcon);
+ if (!rc)
cifs_reopen_persistent_handles(tcon);
+ else
+ resched = true;
list_del_init(&tcon->rlist);
cifs_put_tcon(tcon);
}
cifs_dbg(FYI, "Reconnecting tcons finished\n");
+ if (resched)
+ queue_delayed_work(cifsiod_wq, &server->reconnect, 2 * HZ);
mutex_unlock(&server->reconnect_mutex);
/* now we can safely release srv struct */
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 7163fe014b57..dde861387a40 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -136,17 +136,26 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
vma->vm_flags |= VM_HUGETLB | VM_DONTEXPAND;
vma->vm_ops = &hugetlb_vm_ops;
+ /*
+ * Offset passed to mmap (before page shift) could have been
+ * negative when represented as a (l)off_t.
+ */
+ if (((loff_t)vma->vm_pgoff << PAGE_SHIFT) < 0)
+ return -EINVAL;
+
if (vma->vm_pgoff & (~huge_page_mask(h) >> PAGE_SHIFT))
return -EINVAL;
vma_len = (loff_t)(vma->vm_end - vma->vm_start);
+ len = vma_len + ((loff_t)vma->vm_pgoff << PAGE_SHIFT);
+ /* check for overflow */
+ if (len < vma_len)
+ return -EINVAL;
inode_lock(inode);
file_accessed(file);
ret = -ENOMEM;
- len = vma_len + ((loff_t)vma->vm_pgoff << PAGE_SHIFT);
-
if (hugetlb_reserve_pages(inode,
vma->vm_pgoff >> huge_page_order(h),
len >> huge_page_shift(h), vma,
@@ -155,7 +164,7 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
ret = 0;
if (vma->vm_flags & VM_WRITE && inode->i_size < len)
- inode->i_size = len;
+ i_size_write(inode, len);
out:
inode_unlock(inode);
diff --git a/fs/namei.c b/fs/namei.c
index d41fab78798b..19dcf62133cc 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2145,6 +2145,9 @@ static const char *path_init(struct nameidata *nd, unsigned flags)
int retval = 0;
const char *s = nd->name->name;
+ if (!*s)
+ flags &= ~LOOKUP_RCU;
+
nd->last_type = LAST_ROOT; /* if there are only slashes... */
nd->flags = flags | LOOKUP_JUMPED | LOOKUP_PARENT;
nd->depth = 0;
diff --git a/fs/orangefs/devorangefs-req.c b/fs/orangefs/devorangefs-req.c
index c4ab6fdf17a0..e1534c9bab16 100644
--- a/fs/orangefs/devorangefs-req.c
+++ b/fs/orangefs/devorangefs-req.c
@@ -208,14 +208,19 @@ restart:
continue;
/*
* Skip ops whose filesystem we don't know about unless
- * it is being mounted.
+ * it is being mounted or unmounted. It is possible for
+ * a filesystem we don't know about to be unmounted if
+ * it fails to mount in the kernel after userspace has
+ * been sent the mount request.
*/
/* XXX: is there a better way to detect this? */
} else if (ret == -1 &&
!(op->upcall.type ==
ORANGEFS_VFS_OP_FS_MOUNT ||
op->upcall.type ==
- ORANGEFS_VFS_OP_GETATTR)) {
+ ORANGEFS_VFS_OP_GETATTR ||
+ op->upcall.type ==
+ ORANGEFS_VFS_OP_FS_UMOUNT)) {
gossip_debug(GOSSIP_DEV_DEBUG,
"orangefs: skipping op tag %llu %s\n",
llu(op->tag), get_opname_string(op));
diff --git a/fs/orangefs/orangefs-kernel.h b/fs/orangefs/orangefs-kernel.h
index 5e48a0be9761..8afac46fcc87 100644
--- a/fs/orangefs/orangefs-kernel.h
+++ b/fs/orangefs/orangefs-kernel.h
@@ -249,6 +249,7 @@ struct orangefs_sb_info_s {
char devname[ORANGEFS_MAX_SERVER_ADDR_LEN];
struct super_block *sb;
int mount_pending;
+ int no_list;
struct list_head list;
};
diff --git a/fs/orangefs/super.c b/fs/orangefs/super.c
index cd261c8de53a..629d8c917fa6 100644
--- a/fs/orangefs/super.c
+++ b/fs/orangefs/super.c
@@ -493,7 +493,7 @@ struct dentry *orangefs_mount(struct file_system_type *fst,
if (ret) {
d = ERR_PTR(ret);
- goto free_op;
+ goto free_sb_and_op;
}
/*
@@ -519,6 +519,9 @@ struct dentry *orangefs_mount(struct file_system_type *fst,
spin_unlock(&orangefs_superblocks_lock);
op_release(new_op);
+ /* Must be removed from the list now. */
+ ORANGEFS_SB(sb)->no_list = 0;
+
if (orangefs_userspace_version >= 20906) {
new_op = op_alloc(ORANGEFS_VFS_OP_FEATURES);
if (!new_op)
@@ -533,6 +536,10 @@ struct dentry *orangefs_mount(struct file_system_type *fst,
return dget(sb->s_root);
+free_sb_and_op:
+ /* Will call orangefs_kill_sb with sb not in list. */
+ ORANGEFS_SB(sb)->no_list = 1;
+ deactivate_locked_super(sb);
free_op:
gossip_err("orangefs_mount: mount request failed with %d\n", ret);
if (ret == -EINVAL) {
@@ -558,12 +565,14 @@ void orangefs_kill_sb(struct super_block *sb)
*/
orangefs_unmount_sb(sb);
- /* remove the sb from our list of orangefs specific sb's */
-
- spin_lock(&orangefs_superblocks_lock);
- __list_del_entry(&ORANGEFS_SB(sb)->list); /* not list_del_init */
- ORANGEFS_SB(sb)->list.prev = NULL;
- spin_unlock(&orangefs_superblocks_lock);
+ if (!ORANGEFS_SB(sb)->no_list) {
+ /* remove the sb from our list of orangefs specific sb's */
+ spin_lock(&orangefs_superblocks_lock);
+ /* not list_del_init */
+ __list_del_entry(&ORANGEFS_SB(sb)->list);
+ ORANGEFS_SB(sb)->list.prev = NULL;
+ spin_unlock(&orangefs_superblocks_lock);
+ }
/*
* make sure that ORANGEFS_DEV_REMOUNT_ALL loop that might've seen us
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index f08bd31c1081..312578089544 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -900,7 +900,14 @@ static inline void clear_soft_dirty(struct vm_area_struct *vma,
static inline void clear_soft_dirty_pmd(struct vm_area_struct *vma,
unsigned long addr, pmd_t *pmdp)
{
- pmd_t pmd = pmdp_huge_get_and_clear(vma->vm_mm, addr, pmdp);
+ pmd_t pmd = *pmdp;
+
+ /* See comment in change_huge_pmd() */
+ pmdp_invalidate(vma, addr, pmdp);
+ if (pmd_dirty(*pmdp))
+ pmd = pmd_mkdirty(pmd);
+ if (pmd_young(*pmdp))
+ pmd = pmd_mkyoung(pmd);
pmd = pmd_wrprotect(pmd);
pmd = pmd_clear_soft_dirty(pmd);