From 871a293155a24554e153538d36e3a80fa169aefb Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 3 Mar 2010 09:05:07 -0500 Subject: dquot: cleanup dquot initialize routine Get rid of the initialize dquot operation - it is now always called from the filesystem and if a filesystem really needs it's own (which none currently does) it can just call into it's own routine directly. Rename the now static low-level dquot_initialize helper to __dquot_initialize and vfs_dq_init to dquot_initialize to have a consistent namespace. Signed-off-by: Christoph Hellwig Signed-off-by: Jan Kara --- fs/quota/dquot.c | 32 ++++++++++++++++++++------------ 1 file changed, 20 insertions(+), 12 deletions(-) (limited to 'fs/quota') diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index 6244bca45c9d..3c0a7e0dff78 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -230,6 +230,7 @@ struct dqstats dqstats; EXPORT_SYMBOL(dqstats); static qsize_t inode_get_rsv_space(struct inode *inode); +static void __dquot_initialize(struct inode *inode, int type); static inline unsigned int hashfn(const struct super_block *sb, unsigned int id, int type) @@ -890,7 +891,7 @@ static void add_dquot_ref(struct super_block *sb, int type) spin_unlock(&inode_lock); iput(old_inode); - sb->dq_op->initialize(inode, type); + __dquot_initialize(inode, type); /* We hold a reference to 'inode' so it couldn't have been * removed from s_inodes list while we dropped the inode_lock. * We cannot iput the inode now as we can be holding the last @@ -1293,22 +1294,26 @@ static int info_bdq_free(struct dquot *dquot, qsize_t space) } /* - * Initialize quota pointers in inode - * We do things in a bit complicated way but by that we avoid calling - * dqget() and thus filesystem callbacks under dqptr_sem. + * Initialize quota pointers in inode + * + * We do things in a bit complicated way but by that we avoid calling + * dqget() and thus filesystem callbacks under dqptr_sem. + * + * It is better to call this function outside of any transaction as it + * might need a lot of space in journal for dquot structure allocation. */ -int dquot_initialize(struct inode *inode, int type) +static void __dquot_initialize(struct inode *inode, int type) { unsigned int id = 0; - int cnt, ret = 0; + int cnt; struct dquot *got[MAXQUOTAS]; struct super_block *sb = inode->i_sb; qsize_t rsv; /* First test before acquiring mutex - solves deadlocks when we * re-enter the quota code and are already holding the mutex */ - if (IS_NOQUOTA(inode)) - return 0; + if (!sb_any_quota_active(inode->i_sb) || IS_NOQUOTA(inode)) + return; /* First get references to structures we might need. */ for (cnt = 0; cnt < MAXQUOTAS; cnt++) { @@ -1351,7 +1356,11 @@ out_err: up_write(&sb_dqopt(sb)->dqptr_sem); /* Drop unused references */ dqput_all(got); - return ret; +} + +void dquot_initialize(struct inode *inode) +{ + __dquot_initialize(inode, -1); } EXPORT_SYMBOL(dquot_initialize); @@ -1783,7 +1792,7 @@ int dquot_transfer(struct inode *inode, struct iattr *iattr) chid[GRPQUOTA] = iattr->ia_gid; } if (sb_any_quota_active(inode->i_sb) && !IS_NOQUOTA(inode)) { - vfs_dq_init(inode); + dquot_initialize(inode); if (__dquot_transfer(inode, chid, mask) == NO_QUOTA) return -EDQUOT; } @@ -1810,7 +1819,6 @@ EXPORT_SYMBOL(dquot_commit_info); * Definitions of diskquota operations. */ const struct dquot_operations dquot_operations = { - .initialize = dquot_initialize, .write_dquot = dquot_commit, .acquire_dquot = dquot_acquire, .release_dquot = dquot_release, @@ -1829,7 +1837,7 @@ int dquot_file_open(struct inode *inode, struct file *file) error = generic_file_open(inode, file); if (!error && (file->f_mode & FMODE_WRITE)) - vfs_dq_init(inode); + dquot_initialize(inode); return error; } EXPORT_SYMBOL(dquot_file_open); -- cgit v1.2.3