From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jaegeuk Kim Subject: [PATCH 1/2] f2fs: add quota_ino feature infra Date: Mon, 30 Oct 2017 20:40:29 -0700 Message-ID: <20171031034030.26719-1-jaegeuk@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from sog-mx-3.v43.ch3.sourceforge.com ([172.29.43.193] helo=mx.sourceforge.net) by sfs-ml-1.v29.ch3.sourceforge.com with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.89) (envelope-from ) id 1e9NPq-0008Ve-SG for linux-f2fs-devel@lists.sourceforge.net; Tue, 31 Oct 2017 03:40:38 +0000 Received: from mail.kernel.org ([198.145.29.99]) by sog-mx-3.v43.ch3.sourceforge.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.76) id 1e9NPp-0003Yu-U7 for linux-f2fs-devel@lists.sourceforge.net; Tue, 31 Oct 2017 03:40:38 +0000 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Cc: Jaegeuk Kim This patch adds quota_ino feature infra to be used for quota files. Signed-off-by: Jaegeuk Kim --- fs/f2fs/f2fs.h | 6 ++++++ fs/f2fs/sysfs.c | 7 +++++++ include/linux/f2fs_fs.h | 6 +++++- 3 files changed, 18 insertions(+), 1 deletion(-) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 4a75f07f1dc8..9a1c7ffa6845 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -122,6 +122,7 @@ struct f2fs_mount_info { #define F2FS_FEATURE_PRJQUOTA 0x0010 #define F2FS_FEATURE_INODE_CHKSUM 0x0020 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040 +#define F2FS_FEATURE_QUOTA_INO 0x0080 #define F2FS_HAS_FEATURE(sb, mask) \ ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0) @@ -3070,6 +3071,11 @@ static inline int f2fs_sb_has_flexible_inline_xattr(struct super_block *sb) return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_FLEXIBLE_INLINE_XATTR); } +static inline int f2fs_sb_has_quota_ino(struct super_block *sb) +{ + return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_QUOTA_INO); +} + #ifdef CONFIG_BLK_DEV_ZONED static inline int get_blkz_type(struct f2fs_sb_info *sbi, struct block_device *bdev, block_t blkaddr) diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index f0fdc89ce82f..9835348b6e5d 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -110,6 +110,9 @@ static ssize_t features_show(struct f2fs_attr *a, if (f2fs_sb_has_flexible_inline_xattr(sb)) len += snprintf(buf + len, PAGE_SIZE - len, "%s%s", len ? ", " : "", "flexible_inline_xattr"); + if (f2fs_sb_has_quota_ino(sb)) + len += snprintf(buf + len, PAGE_SIZE - len, "%s%s", + len ? ", " : "", "quota_ino"); len += snprintf(buf + len, PAGE_SIZE - len, "\n"); return len; } @@ -227,6 +230,7 @@ enum feat_id { FEAT_PROJECT_QUOTA, FEAT_INODE_CHECKSUM, FEAT_FLEXIBLE_INLINE_XATTR, + FEAT_QUOTA_INO, }; static ssize_t f2fs_feature_show(struct f2fs_attr *a, @@ -240,6 +244,7 @@ static ssize_t f2fs_feature_show(struct f2fs_attr *a, case FEAT_PROJECT_QUOTA: case FEAT_INODE_CHECKSUM: case FEAT_FLEXIBLE_INLINE_XATTR: + case FEAT_QUOTA_INO: return snprintf(buf, PAGE_SIZE, "supported\n"); } return 0; @@ -314,6 +319,7 @@ F2FS_FEATURE_RO_ATTR(extra_attr, FEAT_EXTRA_ATTR); F2FS_FEATURE_RO_ATTR(project_quota, FEAT_PROJECT_QUOTA); F2FS_FEATURE_RO_ATTR(inode_checksum, FEAT_INODE_CHECKSUM); F2FS_FEATURE_RO_ATTR(flexible_inline_xattr, FEAT_FLEXIBLE_INLINE_XATTR); +F2FS_FEATURE_RO_ATTR(quota_ino, FEAT_QUOTA_INO); #define ATTR_LIST(name) (&f2fs_attr_##name.attr) static struct attribute *f2fs_attrs[] = { @@ -364,6 +370,7 @@ static struct attribute *f2fs_feat_attrs[] = { ATTR_LIST(project_quota), ATTR_LIST(inode_checksum), ATTR_LIST(flexible_inline_xattr), + ATTR_LIST(quota_ino), NULL, }; diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h index 50a8ee501bf1..ce34007972c3 100644 --- a/include/linux/f2fs_fs.h +++ b/include/linux/f2fs_fs.h @@ -36,6 +36,9 @@ #define F2FS_NODE_INO(sbi) ((sbi)->node_ino_num) #define F2FS_META_INO(sbi) ((sbi)->meta_ino_num) +#define F2FS_QUOTA_INO 3 +#define F2FS_MAX_QUOTAS 3 + #define F2FS_IO_SIZE(sbi) (1 << (sbi)->write_io_size_bits) /* Blocks */ #define F2FS_IO_SIZE_KB(sbi) (1 << ((sbi)->write_io_size_bits + 2)) /* KB */ #define F2FS_IO_SIZE_BYTES(sbi) (1 << ((sbi)->write_io_size_bits + 12)) /* B */ @@ -108,7 +111,8 @@ struct f2fs_super_block { __u8 encryption_level; /* versioning level for encryption */ __u8 encrypt_pw_salt[16]; /* Salt used for string2key algorithm */ struct f2fs_device devs[MAX_DEVICES]; /* device list */ - __u8 reserved[327]; /* valid reserved region */ + __le32 qf_ino[F2FS_MAX_QUOTAS]; /* quota inode numbers */ + __u8 reserved[315]; /* valid reserved region */ } __packed; /* -- 2.14.0.rc1.383.gd1ce394fe2-goog ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot