f2fs: support ->tmpfile()
Subsystems (2)
PATCH 1/1 f2fs: support ->tmpfile()
Add function f2fs_tmpfile() to support O_TMPFILE file creation, and modify logic of init_inode_metadata to enable linkat temp file.
Signed-off-by Chao Yu <[email protected]>
--- fs/f2fs/dir.c | 10 ++++++++- fs/f2fs/namei.c | 64 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 73 insertions(+), 1 deletion(-)
fs/f2fs/dir.c +9 -1
@@ -333,10 +333,12 @@ static int make_empty_dir(struct inode *inode,static struct page *init_inode_metadata (struct inode *inode,struct inode *dir,const struct qstr *name) { +struct f2fs_sb_info *sbi =F2FS_SB (dir->i_sb);struct page *page;int err; -if (is_inode_flag_set (F2FS_I (inode),FI_NEW_INODE )) { +if (is_inode_flag_set (F2FS_I (inode),FI_NEW_INODE ) && + inode->i_nlink) { page =new_inode_page (inode, name);if (IS_ERR (page))return page;
@@ -370,6 +372,12 @@ static struct page *init_inode_metadata(struct inode *inode,*/ if (is_inode_flag_set (F2FS_I (inode),FI_INC_LINK )) {file_lost_pino (inode); +/* +* If link the tmpfile to alias through linkat path, +* we should remove this inode from orphan list. +*/ +if (inode->i_nlink ==0 ) +remove_orphan_inode (sbi, inode->i_ino);inc_nlink (inode); }return page;
fs/f2fs/namei.c +64 -0
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