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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-12-26 16:28:28 +0900
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2011-01-10 14:05:45 +0900
commit27e6c7a3ce29ae5fa5bec4ed5917f8508bfac120 (patch)
tree958d82757bf23e426c7bc1035f76d986f09be535 /fs/nilfs2/inode.c
parente828949e5b42bfd234ee537cdb7c5e3a577958a3 (diff)
downloadlinux-27e6c7a3ce29ae5fa5bec4ed5917f8508bfac120.tar.gz
nilfs2: mark buffer heads as delayed until the data is written to disk
Nilfs does not allocate new blocks on disk until they are actually written to. To implement fiemap, we need to deal with such blocks. To allow successive fiemap patch to distinguish mapped but unallocated regions, this marks buffer heads of those new blocks as delayed and clears the flag after the blocks are written to disk. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/inode.c')
-rw-r--r--fs/nilfs2/inode.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 550b1788981..1a546a86d7a 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -104,6 +104,7 @@ int nilfs_get_block(struct inode *inode, sector_t blkoff,
nilfs_transaction_commit(inode->i_sb); /* never fails */
/* Error handling should be detailed */
set_buffer_new(bh_result);
+ set_buffer_delay(bh_result);
map_bh(bh_result, inode->i_sb, 0); /* dbn must be changed
to proper value */
} else if (ret == -ENOENT) {