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authorLinus Torvalds <torvalds@linux-foundation.org>2016-04-09 19:41:34 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2016-04-09 19:41:34 +0200
commit839a3f765728cdca0057a12e2dc0bf669ac1c22e (patch)
treece89a9ed9f2346ee2103313ccba2565639f14f92 /fs/btrfs/file.c
parentMerge tag 'for-linus-4.6-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/g... (diff)
parentBtrfs: fix file/data loss caused by fsync after rename and new inode (diff)
downloadlinux-839a3f765728cdca0057a12e2dc0bf669ac1c22e.tar.xz
linux-839a3f765728cdca0057a12e2dc0bf669ac1c22e.zip
Merge branch 'for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason: "These are bug fixes, including a really old fsync bug, and a few trace points to help us track down problems in the quota code" * 'for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: fix file/data loss caused by fsync after rename and new inode btrfs: Reset IO error counters before start of device replacing btrfs: Add qgroup tracing Btrfs: don't use src fd for printk btrfs: fallback to vmalloc in btrfs_compare_tree btrfs: handle non-fatal errors in btrfs_qgroup_inherit() btrfs: Output more info for enospc_debug mount option Btrfs: fix invalid reference in replace_path Btrfs: Improve FL_KEEP_SIZE handling in fallocate
Diffstat (limited to 'fs/btrfs/file.c')
-rw-r--r--fs/btrfs/file.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index fbe2589f99f0..8d7b5a45c005 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -2682,9 +2682,12 @@ static long btrfs_fallocate(struct file *file, int mode,
return ret;
inode_lock(inode);
- ret = inode_newsize_ok(inode, alloc_end);
- if (ret)
- goto out;
+
+ if (!(mode & FALLOC_FL_KEEP_SIZE) && offset + len > inode->i_size) {
+ ret = inode_newsize_ok(inode, offset + len);
+ if (ret)
+ goto out;
+ }
/*
* TODO: Move these two operations after we have checked