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author | Jan Kara <jack@suse.cz> | 2017-04-11 16:21:01 +0200 |
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committer | Jan Kara <jack@suse.cz> | 2017-04-19 14:21:23 +0200 |
commit | 12fd086d3946f753fe0d3db01c2cd037a7d76f4e (patch) | |
tree | 58e12f60839a3a8a91896fcbfac197ca55dca162 /fs | |
parent | 161f3b74479b1e486fc784111491023a5bc57bf7 (diff) | |
download | linux-12fd086d3946f753fe0d3db01c2cd037a7d76f4e.tar.gz linux-12fd086d3946f753fe0d3db01c2cd037a7d76f4e.tar.bz2 linux-12fd086d3946f753fe0d3db01c2cd037a7d76f4e.zip |
jfs: Set flags on quota files directly
Currently immutable and noatime flags on quota files are set by quota
code which requires us to copy inode->i_flags to our on disk version
of quota flags in GETFLAGS ioctl and copy_to_dinode(). Move to
setting / clearing these on-disk flags directly to save that copying.
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/jfs/super.c | 79 |
1 files changed, 77 insertions, 2 deletions
diff --git a/fs/jfs/super.c b/fs/jfs/super.c index c64c2574a0aa..e8aad7d87b8c 100644 --- a/fs/jfs/super.c +++ b/fs/jfs/super.c @@ -45,6 +45,7 @@ #include "jfs_acl.h" #include "jfs_debug.h" #include "jfs_xattr.h" +#include "jfs_dinode.h" MODULE_DESCRIPTION("The Journaled Filesystem (JFS)"); MODULE_AUTHOR("Steve Best/Dave Kleikamp/Barry Arndt, IBM"); @@ -181,6 +182,35 @@ static int jfs_statfs(struct dentry *dentry, struct kstatfs *buf) return 0; } +#ifdef CONFIG_QUOTA +static int jfs_quota_off(struct super_block *sb, int type); +static int jfs_quota_on(struct super_block *sb, int type, int format_id, + const struct path *path); + +static void jfs_quota_off_umount(struct super_block *sb) +{ + int type; + + for (type = 0; type < MAXQUOTAS; type++) + jfs_quota_off(sb, type); +} + +static const struct quotactl_ops jfs_quotactl_ops = { + .quota_on = jfs_quota_on, + .quota_off = jfs_quota_off, + .quota_sync = dquot_quota_sync, + .get_state = dquot_get_state, + .set_info = dquot_set_dqinfo, + .get_dqblk = dquot_get_dqblk, + .set_dqblk = dquot_set_dqblk, + .get_nextdqblk = dquot_get_next_dqblk, +}; +#else +static inline void jfs_quota_off_umount(struct super_block *sb) +{ +} +#endif + static void jfs_put_super(struct super_block *sb) { struct jfs_sb_info *sbi = JFS_SBI(sb); @@ -188,7 +218,7 @@ static void jfs_put_super(struct super_block *sb) jfs_info("In jfs_put_super"); - dquot_disable(sb, -1, DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED); + jfs_quota_off_umount(sb); rc = jfs_umount(sb); if (rc) @@ -536,7 +566,7 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent) sb->s_xattr = jfs_xattr_handlers; #ifdef CONFIG_QUOTA sb->dq_op = &dquot_operations; - sb->s_qcop = &dquot_quotactl_ops; + sb->s_qcop = &jfs_quotactl_ops; sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP; #endif @@ -840,6 +870,51 @@ static struct dquot **jfs_get_dquots(struct inode *inode) { return JFS_IP(inode)->i_dquot; } + +static int jfs_quota_on(struct super_block *sb, int type, int format_id, + const struct path *path) +{ + int err; + struct inode *inode; + + err = dquot_quota_on(sb, type, format_id, path); + if (err) + return err; + + inode = d_inode(path->dentry); + inode_lock(inode); + JFS_IP(inode)->mode2 |= JFS_NOATIME_FL | JFS_IMMUTABLE_FL; + inode_set_flags(inode, S_NOATIME | S_IMMUTABLE, + S_NOATIME | S_IMMUTABLE); + inode_unlock(inode); + mark_inode_dirty(inode); + + return 0; +} + +static int jfs_quota_off(struct super_block *sb, int type) +{ + struct inode *inode = sb_dqopt(sb)->files[type]; + int err; + + if (!inode || !igrab(inode)) + goto out; + + err = dquot_quota_off(sb, type); + if (err) + goto out_put; + + inode_lock(inode); + JFS_IP(inode)->mode2 &= ~(JFS_NOATIME_FL | JFS_IMMUTABLE_FL); + inode_set_flags(inode, 0, S_NOATIME | S_IMMUTABLE); + inode_unlock(inode); + mark_inode_dirty(inode); +out_put: + iput(inode); + return err; +out: + return dquot_quota_off(sb, type); +} #endif static const struct super_operations jfs_super_operations = { |