diff options
| author | Jiri Kosina <jkosina@suse.cz> | 2012-06-29 14:45:58 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2012-06-29 14:45:58 +0200 |
| commit | 59f91e5dd0504dc0ebfaa0b6f3a55e6931f96266 (patch) | |
| tree | b913718405d44a921905ac71044fbde410256865 /mm/truncate.c | |
| parent | 57bdfdd80077addf518a9b90c4a66890efc4f70e (diff) | |
| parent | 89abfab133ef1f5902abafb744df72793213ac19 (diff) | |
Merge branch 'master' into for-next
Conflicts:
include/linux/mmzone.h
Synced with Linus' tree so that trivial patch can be applied
on top of up-to-date code properly.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Diffstat (limited to 'mm/truncate.c')
| -rw-r--r-- | mm/truncate.c | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/mm/truncate.c b/mm/truncate.c index 61a183b89df..75801acdaac 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -602,31 +602,6 @@ int vmtruncate(struct inode *inode, loff_t newsize) } EXPORT_SYMBOL(vmtruncate); -int vmtruncate_range(struct inode *inode, loff_t lstart, loff_t lend) -{ - struct address_space *mapping = inode->i_mapping; - loff_t holebegin = round_up(lstart, PAGE_SIZE); - loff_t holelen = 1 + lend - holebegin; - - /* - * If the underlying filesystem is not going to provide - * a way to truncate a range of blocks (punch a hole) - - * we should return failure right now. - */ - if (!inode->i_op->truncate_range) - return -ENOSYS; - - mutex_lock(&inode->i_mutex); - inode_dio_wait(inode); - unmap_mapping_range(mapping, holebegin, holelen, 1); - inode->i_op->truncate_range(inode, lstart, lend); - /* unmap again to remove racily COWed private pages */ - unmap_mapping_range(mapping, holebegin, holelen, 1); - mutex_unlock(&inode->i_mutex); - - return 0; -} - /** * truncate_pagecache_range - unmap and remove pagecache that is hole-punched * @inode: inode |