[PATCH 1/2] f2fs: fix to spread f2fs_is_checkpoint_ready()

[Chao Yu]

We missed to call f2fs_is_checkpoint_ready() in several places, it may
allow space allocation even when free space was exhausted during
checkpoint is disabled, fix to add them.

Signed-off-by: Chao Yu <yuch...@huawei.com>
---
 fs/f2fs/file.c  | 11 +++++++++++
 fs/f2fs/namei.c |  4 ++++
 fs/f2fs/xattr.c |  5 +++++
 3 files changed, 20 insertions(+)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index ae0fec54cac6..43d878f3db0f 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -57,6 +57,9 @@ static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf)
                err = -EIO;
                goto err;
        }
+       err = f2fs_is_checkpoint_ready(sbi);
+       if (err)
+               goto err;
 
        sb_start_pagefault(inode->i_sb);
 
@@ -1568,6 +1571,9 @@ static long f2fs_fallocate(struct file *file, int mode,
 
        if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
                return -EIO;
+       ret = f2fs_is_checkpoint_ready(F2FS_I_SB(inode));
+       if (ret)
+               return ret;
 
        /* f2fs only support ->fallocate for regular file */
        if (!S_ISREG(inode->i_mode))
@@ -3150,8 +3156,13 @@ static int f2fs_set_volume_name(struct file *filp, 
unsigned long arg)
 
 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
+       int ret;
+
        if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(filp)))))
                return -EIO;
+       ret = f2fs_is_checkpoint_ready(F2FS_I_SB(file_inode(filp)));
+       if (ret)
+               return ret;
 
        switch (cmd) {
        case F2FS_IOC_GETFLAGS:
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index c5b99042e6f2..09fb4f31576e 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -801,9 +801,13 @@ static int __f2fs_tmpfile(struct inode *dir, struct dentry 
*dentry,
 static int f2fs_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
        struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
+       int ret;
 
        if (unlikely(f2fs_cp_error(sbi)))
                return -EIO;
+       ret = f2fs_is_checkpoint_ready(sbi);
+       if (ret)
+               return ret;
 
        if (IS_ENCRYPTED(dir) || DUMMY_ENCRYPTION_ENABLED(sbi)) {
                int err = fscrypt_get_encryption_info(dir);
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index b32c45621679..3c92f4122044 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -21,6 +21,7 @@
 #include <linux/posix_acl_xattr.h>
 #include "f2fs.h"
 #include "xattr.h"
+#include "segment.h"
 
 static int f2fs_xattr_generic_get(const struct xattr_handler *handler,
                struct dentry *unused, struct inode *inode,
@@ -729,6 +730,10 @@ int f2fs_setxattr(struct inode *inode, int index, const 
char *name,
        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
        int err;
 
+       err = f2fs_is_checkpoint_ready(sbi);
+       if (err)
+               return err;
+
        err = dquot_initialize(inode);
        if (err)
                return err;
-- 
2.18.0.rc1