From 93607124c5450148e592c3d18ac533b4e5f25b8b Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Tue, 16 May 2017 13:20:16 -0700 Subject: f2fs: load inode's flag from disk This patch fixes missing inode flag loaded from disk, reported by Tom. [tom@localhost ~]$ sudo mount /dev/loop0 /mnt/ [tom@localhost ~]$ sudo chown tom:tom /mnt/ [tom@localhost ~]$ touch /mnt/testfile [tom@localhost ~]$ sudo chattr +i /mnt/testfile [tom@localhost ~]$ echo test > /mnt/testfile bash: /mnt/testfile: Operation not permitted [tom@localhost ~]$ rm /mnt/testfile rm: cannot remove '/mnt/testfile': Operation not permitted [tom@localhost ~]$ sudo umount /mnt/ [tom@localhost ~]$ sudo mount /dev/loop0 /mnt/ [tom@localhost ~]$ lsattr /mnt/testfile ----i-------------- /mnt/testfile [tom@localhost ~]$ echo test > /mnt/testfile [tom@localhost ~]$ rm /mnt/testfile [tom@localhost ~]$ sudo umount /mnt/ Cc: stable@vger.kernel.org Reported-by: Tom Yan Signed-off-by: Jaegeuk Kim --- fs/f2fs/file.c | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/f2fs/file.c') diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index abb0403d3414..9b3e7635222c 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -1493,6 +1493,7 @@ static int f2fs_ioc_setflags(struct file *filp, unsigned long arg) inode->i_ctime = current_time(inode); f2fs_set_inode_flags(inode); + f2fs_mark_inode_dirty_sync(inode, false); inode_unlock(inode); out: -- cgit v1.2.1 From 1c6d8ee4b8aaadc3645497658007ca007312351d Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Wed, 3 May 2017 23:59:12 +0800 Subject: f2fs: support statx Last kernel has already support new syscall statx() in commit a528d35e8bfc ("statx: Add a system call to make enhanced file info available"), with this interface we can show more file info including file creation and some attribute flags to user. This patch tries to support this functionality. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/file.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) (limited to 'fs/f2fs/file.c') diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 9b3e7635222c..8ccbfe53c03c 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -633,9 +633,30 @@ int f2fs_truncate(struct inode *inode) } int f2fs_getattr(const struct path *path, struct kstat *stat, - u32 request_mask, unsigned int flags) + u32 request_mask, unsigned int query_flags) { struct inode *inode = d_inode(path->dentry); + struct f2fs_inode_info *fi = F2FS_I(inode); + unsigned int flags; + + flags = fi->i_flags & FS_FL_USER_VISIBLE; + if (flags & FS_APPEND_FL) + stat->attributes |= STATX_ATTR_APPEND; + if (flags & FS_COMPR_FL) + stat->attributes |= STATX_ATTR_COMPRESSED; + if (f2fs_encrypted_inode(inode)) + stat->attributes |= STATX_ATTR_ENCRYPTED; + if (flags & FS_IMMUTABLE_FL) + stat->attributes |= STATX_ATTR_IMMUTABLE; + if (flags & FS_NODUMP_FL) + stat->attributes |= STATX_ATTR_NODUMP; + + stat->attributes_mask |= (STATX_ATTR_APPEND | + STATX_ATTR_COMPRESSED | + STATX_ATTR_ENCRYPTED | + STATX_ATTR_IMMUTABLE | + STATX_ATTR_NODUMP); + generic_fillattr(inode, stat); stat->blocks <<= 3; return 0; -- cgit v1.2.1 From b82a6ea6ec39f1b5ef949a38e334eed0dc29f4d1 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Mon, 22 May 2017 17:39:43 -0700 Subject: f2fs: don't bother checking for encryption key in ->mmap() Since only an open file can be mmap'ed, and we only allow open()ing an encrypted file when its key is available, there is no need to check for the key again before permitting each mmap(). This f2fs copy of this code was also broken in that it wouldn't actually have failed if the key was in fact unavailable. Signed-off-by: Eric Biggers Reviewed-by: David Gstir Acked-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/file.c | 8 -------- 1 file changed, 8 deletions(-) (limited to 'fs/f2fs/file.c') diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 8ccbfe53c03c..30fbb4ce6a73 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -415,14 +415,6 @@ static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma) struct inode *inode = file_inode(file); int err; - if (f2fs_encrypted_inode(inode)) { - err = fscrypt_get_encryption_info(inode); - if (err) - return 0; - if (!f2fs_encrypted_inode(inode)) - return -ENOKEY; - } - /* we don't need to use inline_data strictly */ err = f2fs_convert_inline_inode(inode); if (err) -- cgit v1.2.1 From aaebdee8b88225ebe28af2afc60446f9fd7228f9 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Mon, 22 May 2017 17:39:45 -0700 Subject: f2fs: don't bother checking for encryption key in ->write_iter() Since only an open file can be written to, and we only allow open()ing an encrypted file when its key is available, there is no need to check for the key again before permitting each ->write_iter(). This code was also broken in that it wouldn't actually have failed if the key was in fact unavailable. Signed-off-by: Eric Biggers Reviewed-by: David Gstir Acked-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/file.c | 5 ----- 1 file changed, 5 deletions(-) (limited to 'fs/f2fs/file.c') diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 30fbb4ce6a73..65915b4ce14b 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -2340,11 +2340,6 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from) struct blk_plug plug; ssize_t ret; - if (f2fs_encrypted_inode(inode) && - !fscrypt_has_encryption_key(inode) && - fscrypt_get_encryption_info(inode)) - return -EACCES; - inode_lock(inode); ret = generic_write_checks(iocb, from); if (ret > 0) { -- cgit v1.2.1 From 5a3a2d83cda82df7f8c306df85647d2c368e829a Mon Sep 17 00:00:00 2001 From: Qiuyang Sun Date: Thu, 18 May 2017 11:06:45 +0800 Subject: f2fs: dax: fix races between page faults and truncating pages Currently in F2FS, page faults and operations that truncate the pagecahe or data blocks, are completely unsynchronized. This can result in page fault faulting in a page into a range that we are changing after truncating, and thus we can end up with a page mapped to disk blocks that will be shortly freed. Filesystem corruption will shortly follow. This patch fixes the problem by creating new rw semaphore i_mmap_sem in f2fs_inode_info and grab it for functions removing blocks from extent tree and for read over page faults. The mechanism is similar to that in ext4. Signed-off-by: Qiuyang Sun Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/file.c | 48 +++++++++++++++++++++++++++++++++++++++--------- 1 file changed, 39 insertions(+), 9 deletions(-) (limited to 'fs/f2fs/file.c') diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 65915b4ce14b..ac8b943817e6 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -33,6 +33,18 @@ #include "trace.h" #include +static int f2fs_filemap_fault(struct vm_fault *vmf) +{ + struct inode *inode = file_inode(vmf->vma->vm_file); + int err; + + down_read(&F2FS_I(inode)->i_mmap_sem); + err = filemap_fault(vmf); + up_read(&F2FS_I(inode)->i_mmap_sem); + + return err; +} + static int f2fs_vm_page_mkwrite(struct vm_fault *vmf) { struct page *page = vmf->page; @@ -59,13 +71,14 @@ static int f2fs_vm_page_mkwrite(struct vm_fault *vmf) f2fs_balance_fs(sbi, dn.node_changed); file_update_time(vmf->vma->vm_file); + down_read(&F2FS_I(inode)->i_mmap_sem); lock_page(page); if (unlikely(page->mapping != inode->i_mapping || page_offset(page) > i_size_read(inode) || !PageUptodate(page))) { unlock_page(page); err = -EFAULT; - goto out; + goto out_sem; } /* @@ -94,6 +107,8 @@ mapped: if (f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode)) f2fs_wait_on_encrypted_page_writeback(sbi, dn.data_blkaddr); +out_sem: + up_read(&F2FS_I(inode)->i_mmap_sem); out: sb_end_pagefault(inode->i_sb); f2fs_update_time(sbi, REQ_TIME); @@ -101,7 +116,7 @@ out: } static const struct vm_operations_struct f2fs_file_vm_ops = { - .fault = filemap_fault, + .fault = f2fs_filemap_fault, .map_pages = filemap_map_pages, .page_mkwrite = f2fs_vm_page_mkwrite, }; @@ -700,8 +715,10 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr) return -EACCES; if (attr->ia_size <= i_size_read(inode)) { + down_write(&F2FS_I(inode)->i_mmap_sem); truncate_setsize(inode, attr->ia_size); err = f2fs_truncate(inode); + up_write(&F2FS_I(inode)->i_mmap_sem); if (err) return err; } else { @@ -709,7 +726,9 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr) * do not trim all blocks after i_size if target size is * larger than i_size. */ + down_write(&F2FS_I(inode)->i_mmap_sem); truncate_setsize(inode, attr->ia_size); + up_write(&F2FS_I(inode)->i_mmap_sem); /* should convert inline inode here */ if (!f2fs_may_inline_data(inode)) { @@ -852,12 +871,14 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len) blk_start = (loff_t)pg_start << PAGE_SHIFT; blk_end = (loff_t)pg_end << PAGE_SHIFT; + down_write(&F2FS_I(inode)->i_mmap_sem); truncate_inode_pages_range(mapping, blk_start, blk_end - 1); f2fs_lock_op(sbi); ret = truncate_hole(inode, pg_start, pg_end); f2fs_unlock_op(sbi); + up_write(&F2FS_I(inode)->i_mmap_sem); } } @@ -1096,16 +1117,17 @@ static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len) pg_start = offset >> PAGE_SHIFT; pg_end = (offset + len) >> PAGE_SHIFT; + down_write(&F2FS_I(inode)->i_mmap_sem); /* write out all dirty pages from offset */ ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX); if (ret) - return ret; + goto out; truncate_pagecache(inode, offset); ret = f2fs_do_collapse(inode, pg_start, pg_end); if (ret) - return ret; + goto out; /* write out all moved pages, if possible */ filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX); @@ -1118,6 +1140,8 @@ static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len) if (!ret) f2fs_i_size_write(inode, new_size); +out: + up_write(&F2FS_I(inode)->i_mmap_sem); return ret; } @@ -1182,9 +1206,10 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len, if (ret) return ret; + down_write(&F2FS_I(inode)->i_mmap_sem); ret = filemap_write_and_wait_range(mapping, offset, offset + len - 1); if (ret) - return ret; + goto out_sem; truncate_pagecache_range(inode, offset, offset + len - 1); @@ -1198,7 +1223,7 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len, ret = fill_zero(inode, pg_start, off_start, off_end - off_start); if (ret) - return ret; + goto out_sem; new_size = max_t(loff_t, new_size, offset + len); } else { @@ -1206,7 +1231,7 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len, ret = fill_zero(inode, pg_start++, off_start, PAGE_SIZE - off_start); if (ret) - return ret; + goto out_sem; new_size = max_t(loff_t, new_size, (loff_t)pg_start << PAGE_SHIFT); @@ -1255,6 +1280,8 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len, out: if (!(mode & FALLOC_FL_KEEP_SIZE) && i_size_read(inode) < new_size) f2fs_i_size_write(inode, new_size); +out_sem: + up_write(&F2FS_I(inode)->i_mmap_sem); return ret; } @@ -1284,14 +1311,15 @@ static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len) f2fs_balance_fs(sbi, true); + down_write(&F2FS_I(inode)->i_mmap_sem); ret = truncate_blocks(inode, i_size_read(inode), true); if (ret) - return ret; + goto out; /* write out all dirty pages from offset */ ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX); if (ret) - return ret; + goto out; truncate_pagecache(inode, offset); @@ -1320,6 +1348,8 @@ static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len) if (!ret) f2fs_i_size_write(inode, new_size); +out: + up_write(&F2FS_I(inode)->i_mmap_sem); return ret; } -- cgit v1.2.1 From 67773a1fbdcb5be4a0490b1dd2a5975784ef40df Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Tue, 13 Jun 2017 16:47:54 -0700 Subject: f2fs: require key for truncate(2) of encrypted file Currently, filesystems allow truncate(2) on an encrypted file without the encryption key. However, it's impossible to correctly handle the case where the size being truncated to is not a multiple of the filesystem block size, because that would require decrypting the final block, zeroing the part beyond i_size, then encrypting the block. As other modifications to encrypted file contents are prohibited without the key, just prohibit truncate(2) as well, making it fail with ENOKEY. Signed-off-by: Eric Biggers Acked-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/file.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) (limited to 'fs/f2fs/file.c') diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index ac8b943817e6..61ee029d7e48 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -710,9 +710,13 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr) return err; if (attr->ia_valid & ATTR_SIZE) { - if (f2fs_encrypted_inode(inode) && - fscrypt_get_encryption_info(inode)) - return -EACCES; + if (f2fs_encrypted_inode(inode)) { + err = fscrypt_get_encryption_info(inode); + if (err) + return err; + if (!fscrypt_has_encryption_key(inode)) + return -ENOKEY; + } if (attr->ia_size <= i_size_read(inode)) { down_write(&F2FS_I(inode)->i_mmap_sem); -- cgit v1.2.1 From 0eb0adadf2e49d82bc4ecd65ec3bb69251f7564c Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Wed, 14 Jun 2017 23:00:56 +0800 Subject: f2fs: measure inode.i_blocks as generic filesystem Both in memory or on disk, generic filesystems record i_blocks with 512bytes sized sector count, also VFS sub module such as disk quota follows this rule, but f2fs records it with 4096bytes sized block count, this difference leads to that once we use dquota's function which inc/dec iblocks, it will make i_blocks of f2fs being inconsistent between in memory and on disk. In order to resolve this issue, this patch changes to make in-memory i_blocks of f2fs recording sector count instead of block count, meanwhile leaving on-disk i_blocks recording block count. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/file.c | 1 - 1 file changed, 1 deletion(-) (limited to 'fs/f2fs/file.c') diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 61ee029d7e48..7ea63d84a699 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -665,7 +665,6 @@ int f2fs_getattr(const struct path *path, struct kstat *stat, STATX_ATTR_NODUMP); generic_fillattr(inode, stat); - stat->blocks <<= 3; return 0; } -- cgit v1.2.1 From a9bcf9bcd01499001834273ac1114ec76668f048 Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Wed, 14 Jun 2017 08:05:32 -0700 Subject: f2fs: don't need to check encrypted inode for partial truncation The cache_only is always false, if inode is encrypted. Signed-off-by: Jaegeuk Kim --- fs/f2fs/file.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'fs/f2fs/file.c') diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 7ea63d84a699..6a201c61eef5 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -534,8 +534,10 @@ static int truncate_partial_data_page(struct inode *inode, u64 from, truncate_out: f2fs_wait_on_page_writeback(page, DATA, true); zero_user(page, offset, PAGE_SIZE - offset); - if (!cache_only || !f2fs_encrypted_inode(inode) || - !S_ISREG(inode->i_mode)) + + /* An encrypted inode should have a key and truncate the last page. */ + f2fs_bug_on(F2FS_I_SB(inode), cache_only && f2fs_encrypted_inode(inode)); + if (!cache_only) set_page_dirty(page); f2fs_put_page(page, 1); return 0; -- cgit v1.2.1 From 34dc77ad74368707f0f51f42536e38e6ef30ff22 Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Thu, 15 Jun 2017 16:44:42 -0700 Subject: f2fs: add ioctl to do gc with target block address This patch adds f2fs_ioc_gc_range() to move blocks located in the given range. Signed-off-by: Jaegeuk Kim --- fs/f2fs/file.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) (limited to 'fs/f2fs/file.c') diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 6a201c61eef5..3f56b27e761b 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -1911,6 +1911,50 @@ out: return ret; } +static int f2fs_ioc_gc_range(struct file *filp, unsigned long arg) +{ + struct inode *inode = file_inode(filp); + struct f2fs_sb_info *sbi = F2FS_I_SB(inode); + struct f2fs_gc_range range; + u64 end; + int ret; + + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + + if (copy_from_user(&range, (struct f2fs_gc_range __user *)arg, + sizeof(range))) + return -EFAULT; + + if (f2fs_readonly(sbi->sb)) + return -EROFS; + + ret = mnt_want_write_file(filp); + if (ret) + return ret; + + end = range.start + range.len; + if (range.start < MAIN_BLKADDR(sbi) || end >= MAX_BLKADDR(sbi)) + return -EINVAL; +do_more: + if (!range.sync) { + if (!mutex_trylock(&sbi->gc_mutex)) { + ret = -EBUSY; + goto out; + } + } else { + mutex_lock(&sbi->gc_mutex); + } + + ret = f2fs_gc(sbi, range.sync, true, GET_SEGNO(sbi, range.start)); + range.start += sbi->blocks_per_seg; + if (range.start <= end) + goto do_more; +out: + mnt_drop_write_file(filp); + return ret; +} + static int f2fs_ioc_write_checkpoint(struct file *filp, unsigned long arg) { struct inode *inode = file_inode(filp); @@ -2355,6 +2399,8 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) return f2fs_ioc_get_encryption_pwsalt(filp, arg); case F2FS_IOC_GARBAGE_COLLECT: return f2fs_ioc_gc(filp, arg); + case F2FS_IOC_GARBAGE_COLLECT_RANGE: + return f2fs_ioc_gc_range(filp, arg); case F2FS_IOC_WRITE_CHECKPOINT: return f2fs_ioc_write_checkpoint(filp, arg); case F2FS_IOC_DEFRAGMENT: @@ -2423,6 +2469,7 @@ long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case F2FS_IOC_GET_ENCRYPTION_PWSALT: case F2FS_IOC_GET_ENCRYPTION_POLICY: case F2FS_IOC_GARBAGE_COLLECT: + case F2FS_IOC_GARBAGE_COLLECT_RANGE: case F2FS_IOC_WRITE_CHECKPOINT: case F2FS_IOC_DEFRAGMENT: case F2FS_IOC_MOVE_RANGE: -- cgit v1.2.1 From 0abd675e97e60d40e61d59532f8118b0e439034e Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Sun, 9 Jul 2017 00:13:07 +0800 Subject: f2fs: support plain user/group quota This patch adds to support plain user/group quota. Change Note by Jaegeuk Kim. - Use f2fs page cache for quota files in order to consider garbage collection. so, quota files are not tolerable for sudden power-cuts, so user needs to do quotacheck. - setattr() calls dquot_transfer which will transfer inode->i_blocks. We can't reclaim that during f2fs_evict_inode(). So, we need to count node blocks as well in order to match i_blocks with dquot's space. Note that, Chao wrote a patch to count inode->i_blocks without inode block. (f2fs: don't count inode block in in-memory inode.i_blocks) - in f2fs_remount, we need to make RW in prior to dquot_resume. - handle fault_injection case during f2fs_quota_off_umount - TODO: Project quota Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/file.c | 34 +++++++++++++++++++++++++++------- 1 file changed, 27 insertions(+), 7 deletions(-) (limited to 'fs/f2fs/file.c') diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 3f56b27e761b..527c9f36d971 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -442,11 +442,10 @@ static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma) static int f2fs_file_open(struct inode *inode, struct file *filp) { - int ret = generic_file_open(inode, filp); struct dentry *dir; - if (!ret && f2fs_encrypted_inode(inode)) { - ret = fscrypt_get_encryption_info(inode); + if (f2fs_encrypted_inode(inode)) { + int ret = fscrypt_get_encryption_info(inode); if (ret) return -EACCES; if (!fscrypt_has_encryption_key(inode)) @@ -459,7 +458,7 @@ static int f2fs_file_open(struct inode *inode, struct file *filp) return -EPERM; } dput(dir); - return ret; + return dquot_file_open(inode, filp); } int truncate_data_blocks_range(struct dnode_of_data *dn, int count) @@ -710,6 +709,20 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr) if (err) return err; + if (is_quota_modification(inode, attr)) { + err = dquot_initialize(inode); + if (err) + return err; + } + if ((attr->ia_valid & ATTR_UID && + !uid_eq(attr->ia_uid, inode->i_uid)) || + (attr->ia_valid & ATTR_GID && + !gid_eq(attr->ia_gid, inode->i_gid))) { + err = dquot_transfer(inode, attr); + if (err) + return err; + } + if (attr->ia_valid & ATTR_SIZE) { if (f2fs_encrypted_inode(inode)) { err = fscrypt_get_encryption_info(inode); @@ -996,9 +1009,9 @@ static int __clone_blkaddrs(struct inode *src_inode, struct inode *dst_inode, if (do_replace[i]) { f2fs_i_blocks_write(src_inode, - 1, false); + 1, false, false); f2fs_i_blocks_write(dst_inode, - 1, true); + 1, true, false); f2fs_replace_block(sbi, &dn, dn.data_blkaddr, blkaddr[i], ni.version, true, false); @@ -1523,6 +1536,13 @@ static int f2fs_ioc_setflags(struct file *filp, unsigned long arg) inode_lock(inode); + /* Is it quota file? Do not allow user to mess with it */ + if (IS_NOQUOTA(inode)) { + inode_unlock(inode); + ret = -EPERM; + goto unlock_out; + } + flags = f2fs_mask_flags(inode->i_mode, flags); oldflags = fi->i_flags; @@ -1542,7 +1562,7 @@ static int f2fs_ioc_setflags(struct file *filp, unsigned long arg) inode->i_ctime = current_time(inode); f2fs_set_inode_flags(inode); f2fs_mark_inode_dirty_sync(inode, false); - +unlock_out: inode_unlock(inode); out: mnt_drop_write_file(filp); -- cgit v1.2.1