diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/fuse/dev.c | 7 | ||||
| -rw-r--r-- | fs/nilfs2/segment.c | 7 | ||||
| -rw-r--r-- | fs/proc/task_mmu.c | 3 |
3 files changed, 12 insertions, 5 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index ccd3d19917c5..91f87f118e09 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -823,8 +823,8 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep) newpage = buf->page; - if (WARN_ON(!PageUptodate(newpage))) - return -EIO; + if (!PageUptodate(newpage)) + SetPageUptodate(newpage); ClearPageMappedToDisk(newpage); @@ -1730,6 +1730,9 @@ copy_finish: static int fuse_notify(struct fuse_conn *fc, enum fuse_notify_code code, unsigned int size, struct fuse_copy_state *cs) { + /* Don't try to move pages (yet) */ + cs->move_pages = 0; + switch (code) { case FUSE_NOTIFY_POLL: return fuse_notify_poll(fc, size, cs); diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c index 5bee81674d53..14538a865102 100644 --- a/fs/nilfs2/segment.c +++ b/fs/nilfs2/segment.c @@ -1906,6 +1906,7 @@ static void nilfs_segctor_drop_written_files(struct nilfs_sc_info *sci, struct the_nilfs *nilfs) { struct nilfs_inode_info *ii, *n; + int during_mount = !(sci->sc_super->s_flags & MS_ACTIVE); int defer_iput = false; spin_lock(&nilfs->ns_inode_lock); @@ -1918,10 +1919,10 @@ static void nilfs_segctor_drop_written_files(struct nilfs_sc_info *sci, brelse(ii->i_bh); ii->i_bh = NULL; list_del_init(&ii->i_dirty); - if (!ii->vfs_inode.i_nlink) { + if (!ii->vfs_inode.i_nlink || during_mount) { /* - * Defer calling iput() to avoid a deadlock - * over I_SYNC flag for inodes with i_nlink == 0 + * Defer calling iput() to avoid deadlocks if + * i_nlink == 0 or mount is not yet finished. */ list_add_tail(&ii->i_dirty, &sci->sc_iput_queue); defer_iput = true; diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index c93ebb4a34f7..0482e7cb1fb7 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -1289,6 +1289,9 @@ out: static int pagemap_open(struct inode *inode, struct file *file) { + /* do not disclose physical addresses: attack vector */ + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; pr_warn_once("Bits 55-60 of /proc/PID/pagemap entries are about " "to stop being page-shift some time soon. See the " "linux/Documentation/vm/pagemap.txt for details.\n"); |