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authorJaegeuk Kim <jaegeuk@kernel.org>2014-06-13 13:02:11 +0900
committerJaegeuk Kim <jaegeuk@kernel.org>2014-06-23 10:05:07 +0900
commitccfb30001f37ace4690a74c27b4812cf054e123a (patch)
tree84feb6e6d93caa1ee703d528b0d0dc1dffcdd04a /fs
parenta497c3ba1d97fc69c1e78e7b96435ba8c2cb42ee (diff)
downloadop-kernel-dev-ccfb30001f37ace4690a74c27b4812cf054e123a.zip
op-kernel-dev-ccfb30001f37ace4690a74c27b4812cf054e123a.tar.gz
f2fs: fix to report newly allocate region as extent
Previous get_block in f2fs didn't report the newly allocated region which has NEW_ADDR. For reader, it should not report, but fiemap needs this. So, this patch introduces two get_block sharing core function. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/f2fs/data.c23
1 files changed, 18 insertions, 5 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 0924521..f8cf619 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -608,8 +608,8 @@ static int __allocate_data_block(struct dnode_of_data *dn)
* b. do not use extent cache for better performance
* c. give the block addresses to blockdev
*/
-static int get_data_block(struct inode *inode, sector_t iblock,
- struct buffer_head *bh_result, int create)
+static int __get_data_block(struct inode *inode, sector_t iblock,
+ struct buffer_head *bh_result, int create, bool fiemap)
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
unsigned int blkbits = inode->i_sb->s_blocksize_bits;
@@ -637,7 +637,7 @@ static int get_data_block(struct inode *inode, sector_t iblock,
err = 0;
goto unlock_out;
}
- if (dn.data_blkaddr == NEW_ADDR)
+ if (dn.data_blkaddr == NEW_ADDR && !fiemap)
goto put_out;
if (dn.data_blkaddr != NULL_ADDR) {
@@ -671,7 +671,7 @@ get_next:
err = 0;
goto unlock_out;
}
- if (dn.data_blkaddr == NEW_ADDR)
+ if (dn.data_blkaddr == NEW_ADDR && !fiemap)
goto put_out;
end_offset = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode));
@@ -708,10 +708,23 @@ out:
return err;
}
+static int get_data_block(struct inode *inode, sector_t iblock,
+ struct buffer_head *bh_result, int create)
+{
+ return __get_data_block(inode, iblock, bh_result, create, false);
+}
+
+static int get_data_block_fiemap(struct inode *inode, sector_t iblock,
+ struct buffer_head *bh_result, int create)
+{
+ return __get_data_block(inode, iblock, bh_result, create, true);
+}
+
int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
u64 start, u64 len)
{
- return generic_block_fiemap(inode, fieinfo, start, len, get_data_block);
+ return generic_block_fiemap(inode, fieinfo,
+ start, len, get_data_block_fiemap);
}
static int f2fs_read_data_page(struct file *file, struct page *page)
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