Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: Btrfs: add check for changed leaves in setup_leaf_for_split Btrfs: create snapshot references in same commit as snapshot Btrfs: fix small race with delalloc flushing waitqueue's Btrfs: use add_to_page_cache_lru, use __page_cache_alloc Btrfs: fix chunk allocate size calculation Btrfs: kill max_extent mount option Btrfs: fail to mount if we have problems reading the block groups Btrfs: check btrfs_get_extent return for IS_ERR() Btrfs: handle kmalloc() failure in inode lookup ioctl Btrfs: dereferencing freed memory Btrfs: Simplify num_stripes's calculation logical for __btrfs_alloc_chunk() Btrfs: Add error handle for btrfs_search_slot() in btrfs_read_chunk_tree() Btrfs: Remove unnecessary finish_wait() in wait_current_trans() Btrfs: add NULL check for do_walk_down() Btrfs: remove duplicate include in ioctl.c Fix trivial conflict in fs/btrfs/compression.c due to slab.h include cleanups.
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@ -49,7 +49,6 @@
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#include "print-tree.h"
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#include "volumes.h"
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#include "locking.h"
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#include "ctree.h"
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/* Mask out flags that are inappropriate for the given type of inode. */
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static inline __u32 btrfs_mask_flags(umode_t mode, __u32 flags)
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@ -512,7 +511,7 @@ static int should_defrag_range(struct inode *inode, u64 start, u64 len,
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em = btrfs_get_extent(inode, NULL, 0, start, len, 0);
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unlock_extent(io_tree, start, start + len - 1, GFP_NOFS);
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if (!em)
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if (IS_ERR(em))
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return 0;
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}
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@ -1213,6 +1212,9 @@ static noinline int btrfs_ioctl_ino_lookup(struct file *file,
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return -EPERM;
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args = kmalloc(sizeof(*args), GFP_KERNEL);
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if (!args)
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return -ENOMEM;
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if (copy_from_user(args, argp, sizeof(*args))) {
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kfree(args);
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return -EFAULT;
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@ -1376,6 +1378,7 @@ static int btrfs_ioctl_defrag(struct file *file, void __user *argp)
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sizeof(*range))) {
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ret = -EFAULT;
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kfree(range);
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goto out;
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}
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/* compression requires us to start the IO */
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if ((range->flags & BTRFS_DEFRAG_RANGE_COMPRESS)) {
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