quota: Coding style fixes

Wrap long lines, remove assignments from conditions, rewrite two
overcomplicated for loops.

Signed-off-by: Jan Kara <jack@suse.cz>

5 files changed, 198 insertions, 111 deletions

diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 4a37b8e32b4e..a1bd5eabbe50 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -156,7 +156,9 @@ void unregister_quota_format(struct quota_format_type *fmt)
         struct quota_format_type **actqf;
 
         spin_lock(&dq_list_lock);
-        for (actqf = &quota_formats; *actqf && *actqf != fmt; actqf = &(*actqf)->qf_next);
+        for (actqf = &quota_formats; *actqf && *actqf != fmt;
+             actqf = &(*actqf)->qf_next)
+                ;
         if (*actqf)
                 *actqf = (*actqf)->qf_next;
         spin_unlock(&dq_list_lock);
@@ -168,18 +170,25 @@ static struct quota_format_type *find_quota_format(int id)
         struct quota_format_type *actqf;
 
         spin_lock(&dq_list_lock);
-        for (actqf = quota_formats; actqf && actqf->qf_fmt_id != id; actqf = actqf->qf_next);
+        for (actqf = quota_formats; actqf && actqf->qf_fmt_id != id;
+             actqf = actqf->qf_next)
+                ;
         if (!actqf || !try_module_get(actqf->qf_owner)) {
                 int qm;
 
                 spin_unlock(&dq_list_lock);
                 
-                for (qm = 0; module_names[qm].qm_fmt_id && module_names[qm].qm_fmt_id != id; qm++);
-                if (!module_names[qm].qm_fmt_id || request_module(module_names[qm].qm_mod_name))
+                for (qm = 0; module_names[qm].qm_fmt_id &&
+                             module_names[qm].qm_fmt_id != id; qm++)
+                        ;
+                if (!module_names[qm].qm_fmt_id ||
+                    request_module(module_names[qm].qm_mod_name))
                         return NULL;
 
                 spin_lock(&dq_list_lock);
-                for (actqf = quota_formats; actqf && actqf->qf_fmt_id != id; actqf = actqf->qf_next);
+                for (actqf = quota_formats; actqf && actqf->qf_fmt_id != id;
+                     actqf = actqf->qf_next)
+                        ;
                 if (actqf && !try_module_get(actqf->qf_owner))
                         actqf = NULL;
         }
@@ -234,7 +243,8 @@ hashfn(const struct super_block *sb, unsigned int id, int type)
  */
 static inline void insert_dquot_hash(struct dquot *dquot)
 {
-        struct hlist_head *head = dquot_hash + hashfn(dquot->dq_sb, dquot->dq_id, dquot->dq_type);
+        struct hlist_head *head;
+        head = dquot_hash + hashfn(dquot->dq_sb, dquot->dq_id, dquot->dq_type);
         hlist_add_head(&dquot->dq_hash, head);
 }
 
@@ -251,7 +261,8 @@ static struct dquot *find_dquot(unsigned int hashent, struct super_block *sb,
 
         hlist_for_each (node, dquot_hash+hashent) {
                 dquot = hlist_entry(node, struct dquot, dq_hash);
-                if (dquot->dq_sb == sb && dquot->dq_id == id && dquot->dq_type == type)
+                if (dquot->dq_sb == sb && dquot->dq_id == id &&
+                    dquot->dq_type == type)
                         return dquot;
         }
         return NULL;
@@ -351,8 +362,10 @@ int dquot_acquire(struct dquot *dquot)
         if (!test_bit(DQ_ACTIVE_B, &dquot->dq_flags) && !dquot->dq_off) {
                 ret = dqopt->ops[dquot->dq_type]->commit_dqblk(dquot);
                 /* Write the info if needed */
-                if (info_dirty(&dqopt->info[dquot->dq_type]))
-                        ret2 = dqopt->ops[dquot->dq_type]->write_file_info(dquot->dq_sb, dquot->dq_type);
+                if (info_dirty(&dqopt->info[dquot->dq_type])) {
+                        ret2 = dqopt->ops[dquot->dq_type]->write_file_info(
+                                                dquot->dq_sb, dquot->dq_type);
+                }
                 if (ret < 0)
                         goto out_iolock;
                 if (ret2 < 0) {
@@ -387,8 +400,10 @@ int dquot_commit(struct dquot *dquot)
          * => we have better not writing it */
         if (test_bit(DQ_ACTIVE_B, &dquot->dq_flags)) {
                 ret = dqopt->ops[dquot->dq_type]->commit_dqblk(dquot);
-                if (info_dirty(&dqopt->info[dquot->dq_type]))
-                        ret2 = dqopt->ops[dquot->dq_type]->write_file_info(dquot->dq_sb, dquot->dq_type);
+                if (info_dirty(&dqopt->info[dquot->dq_type])) {
+                        ret2 = dqopt->ops[dquot->dq_type]->write_file_info(
+                                                dquot->dq_sb, dquot->dq_type);
+                }
                 if (ret >= 0)
                         ret = ret2;
         }
@@ -414,8 +429,10 @@ int dquot_release(struct dquot *dquot)
         if (dqopt->ops[dquot->dq_type]->release_dqblk) {
                 ret = dqopt->ops[dquot->dq_type]->release_dqblk(dquot);
                 /* Write the info */
-                if (info_dirty(&dqopt->info[dquot->dq_type]))
-                        ret2 = dqopt->ops[dquot->dq_type]->write_file_info(dquot->dq_sb, dquot->dq_type);
+                if (info_dirty(&dqopt->info[dquot->dq_type])) {
+                        ret2 = dqopt->ops[dquot->dq_type]->write_file_info(
+                                                dquot->dq_sb, dquot->dq_type);
+                }
                 if (ret >= 0)
                         ret = ret2;
         }
@@ -543,7 +560,8 @@ int vfs_quota_sync(struct super_block *sb, int type)
                 spin_lock(&dq_list_lock);
                 dirty = &dqopt->info[cnt].dqi_dirty_list;
                 while (!list_empty(dirty)) {
-                        dquot = list_first_entry(dirty, struct dquot, dq_dirty);
+                        dquot = list_first_entry(dirty, struct dquot,
+                                                 dq_dirty);
                         /* Dirty and inactive can be only bad dquot... */
                         if (!test_bit(DQ_ACTIVE_B, &dquot->dq_flags)) {
                                 clear_dquot_dirty(dquot);
@@ -763,11 +781,12 @@ we_slept:
                 dqstats.lookups++;
                 spin_unlock(&dq_list_lock);
         }
-        /* Wait for dq_lock - after this we know that either dquot_release() is already
-         * finished or it will be canceled due to dq_count > 1 test */
+        /* Wait for dq_lock - after this we know that either dquot_release() is
+         * already finished or it will be canceled due to dq_count > 1 test */
         wait_on_dquot(dquot);
-        /* Read the dquot and instantiate it (everything done only if needed) */
-        if (!test_bit(DQ_ACTIVE_B, &dquot->dq_flags) && sb->dq_op->acquire_dquot(dquot) < 0) {
+        /* Read the dquot / allocate space in quota file */
+        if (!test_bit(DQ_ACTIVE_B, &dquot->dq_flags) &&
+            sb->dq_op->acquire_dquot(dquot) < 0) {
                 dqput(dquot);
                 dquot = NULL;
                 goto out;
@@ -828,7 +847,10 @@ static void add_dquot_ref(struct super_block *sb, int type)
         iput(old_inode);
 }
 
-/* Return 0 if dqput() won't block (note that 1 doesn't necessarily mean blocking) */
+/*
+ * Return 0 if dqput() won't block.
+ * (note that 1 doesn't necessarily mean blocking)
+ */
 static inline int dqput_blocks(struct dquot *dquot)
 {
         if (atomic_read(&dquot->dq_count) <= 1)
@@ -836,8 +858,11 @@ static inline int dqput_blocks(struct dquot *dquot)
         return 0;
 }
 
-/* Remove references to dquots from inode - add dquot to list for freeing if needed */
-/* We can't race with anybody because we hold dqptr_sem for writing... */
+/*
+ * Remove references to dquots from inode and add dquot to list for freeing
+ * if we have the last referece to dquot
+ * We can't race with anybody because we hold dqptr_sem for writing...
+ */
 static int remove_inode_dquot_ref(struct inode *inode, int type,
                                   struct list_head *tofree_head)
 {
@@ -851,7 +876,9 @@ static int remove_inode_dquot_ref(struct inode *inode, int type,
                                 printk(KERN_WARNING "VFS: Adding dquot with dq_count %d to dispose list.\n", atomic_read(&dquot->dq_count));
 #endif
                         spin_lock(&dq_list_lock);
-                        list_add(&dquot->dq_free, tofree_head); /* As dquot must have currently users it can't be on the free list... */
+                        /* As dquot must have currently users it can't be on
+                         * the free list... */
+                        list_add(&dquot->dq_free, tofree_head);
                         spin_unlock(&dq_list_lock);
                         return 1;
                 }
@@ -861,19 +888,22 @@ static int remove_inode_dquot_ref(struct inode *inode, int type,
         return 0;
 }
 
-/* Free list of dquots - called from inode.c */
-/* dquots are removed from inodes, no new references can be got so we are the only ones holding reference */
+/*
+ * Free list of dquots
+ * Dquots are removed from inodes and no new references can be got so we are
+ * the only ones holding reference
+ */
 static void put_dquot_list(struct list_head *tofree_head)
 {
         struct list_head *act_head;
         struct dquot *dquot;
 
         act_head = tofree_head->next;
-        /* So now we have dquots on the list... Just free them */
         while (act_head != tofree_head) {
                 dquot = list_entry(act_head, struct dquot, dq_free);
                 act_head = act_head->next;
-                list_del_init(&dquot->dq_free); /* Remove dquot from the list so we won't have problems... */
+                /* Remove dquot from the list so we won't have problems... */
+                list_del_init(&dquot->dq_free);
                 dqput(dquot);
         }
 }
@@ -1131,37 +1161,42 @@ static int ignore_hardlimit(struct dquot *dquot)
         struct mem_dqinfo *info = &sb_dqopt(dquot->dq_sb)->info[dquot->dq_type];
 
         return capable(CAP_SYS_RESOURCE) &&
-            (info->dqi_format->qf_fmt_id != QFMT_VFS_OLD || !(info->dqi_flags & V1_DQF_RSQUASH));
+               (info->dqi_format->qf_fmt_id != QFMT_VFS_OLD ||
+                !(info->dqi_flags & V1_DQF_RSQUASH));
 }
 
 /* needs dq_data_lock */
 static int check_idq(struct dquot *dquot, qsize_t inodes, char *warntype)
 {
+        qsize_t newinodes = dquot->dq_dqb.dqb_curinodes + inodes;
+
         *warntype = QUOTA_NL_NOWARN;
         if (!sb_has_quota_limits_enabled(dquot->dq_sb, dquot->dq_type) ||
             test_bit(DQ_FAKE_B, &dquot->dq_flags))
                 return QUOTA_OK;
 
         if (dquot->dq_dqb.dqb_ihardlimit &&
-           (dquot->dq_dqb.dqb_curinodes + inodes) > dquot->dq_dqb.dqb_ihardlimit &&
+            newinodes > dquot->dq_dqb.dqb_ihardlimit &&
             !ignore_hardlimit(dquot)) {
                 *warntype = QUOTA_NL_IHARDWARN;
                 return NO_QUOTA;
         }
 
         if (dquot->dq_dqb.dqb_isoftlimit &&
-           (dquot->dq_dqb.dqb_curinodes + inodes) > dquot->dq_dqb.dqb_isoftlimit &&
-            dquot->dq_dqb.dqb_itime && get_seconds() >= dquot->dq_dqb.dqb_itime &&
+            newinodes > dquot->dq_dqb.dqb_isoftlimit &&
+            dquot->dq_dqb.dqb_itime &&
+            get_seconds() >= dquot->dq_dqb.dqb_itime &&
             !ignore_hardlimit(dquot)) {
                 *warntype = QUOTA_NL_ISOFTLONGWARN;
                 return NO_QUOTA;
         }
 
         if (dquot->dq_dqb.dqb_isoftlimit &&
-           (dquot->dq_dqb.dqb_curinodes + inodes) > dquot->dq_dqb.dqb_isoftlimit &&
+            newinodes > dquot->dq_dqb.dqb_isoftlimit &&
             dquot->dq_dqb.dqb_itime == 0) {
                 *warntype = QUOTA_NL_ISOFTWARN;
-                dquot->dq_dqb.dqb_itime = get_seconds() + sb_dqopt(dquot->dq_sb)->info[dquot->dq_type].dqi_igrace;
+                dquot->dq_dqb.dqb_itime = get_seconds() +
+                    sb_dqopt(dquot->dq_sb)->info[dquot->dq_type].dqi_igrace;
         }
 
         return QUOTA_OK;
@@ -1171,9 +1206,10 @@ static int check_idq(struct dquot *dquot, qsize_t inodes, char *warntype)
 static int check_bdq(struct dquot *dquot, qsize_t space, int prealloc, char *warntype)
 {
         qsize_t tspace;
+        struct super_block *sb = dquot->dq_sb;
 
         *warntype = QUOTA_NL_NOWARN;
-        if (!sb_has_quota_limits_enabled(dquot->dq_sb, dquot->dq_type) ||
+        if (!sb_has_quota_limits_enabled(sb, dquot->dq_type) ||
             test_bit(DQ_FAKE_B, &dquot->dq_flags))
                 return QUOTA_OK;
 
@@ -1190,7 +1226,8 @@ static int check_bdq(struct dquot *dquot, qsize_t space, int prealloc, char *war
 
         if (dquot->dq_dqb.dqb_bsoftlimit &&
             tspace > dquot->dq_dqb.dqb_bsoftlimit &&
-            dquot->dq_dqb.dqb_btime && get_seconds() >= dquot->dq_dqb.dqb_btime &&
+            dquot->dq_dqb.dqb_btime &&
+            get_seconds() >= dquot->dq_dqb.dqb_btime &&
             !ignore_hardlimit(dquot)) {
                 if (!prealloc)
                         *warntype = QUOTA_NL_BSOFTLONGWARN;
@@ -1202,7 +1239,8 @@ static int check_bdq(struct dquot *dquot, qsize_t space, int prealloc, char *war
             dquot->dq_dqb.dqb_btime == 0) {
                 if (!prealloc) {
                         *warntype = QUOTA_NL_BSOFTWARN;
-                        dquot->dq_dqb.dqb_btime = get_seconds() + sb_dqopt(dquot->dq_sb)->info[dquot->dq_type].dqi_bgrace;
+                        dquot->dq_dqb.dqb_btime = get_seconds() +
+                            sb_dqopt(sb)->info[dquot->dq_type].dqi_bgrace;
                 }
                 else
                         /*
@@ -1217,15 +1255,18 @@ static int check_bdq(struct dquot *dquot, qsize_t space, int prealloc, char *war
 
 static int info_idq_free(struct dquot *dquot, qsize_t inodes)
 {
+        qsize_t newinodes;
+
         if (test_bit(DQ_FAKE_B, &dquot->dq_flags) ||
             dquot->dq_dqb.dqb_curinodes <= dquot->dq_dqb.dqb_isoftlimit ||
             !sb_has_quota_limits_enabled(dquot->dq_sb, dquot->dq_type))
                 return QUOTA_NL_NOWARN;
 
-        if (dquot->dq_dqb.dqb_curinodes - inodes <= dquot->dq_dqb.dqb_isoftlimit)
+        newinodes = dquot->dq_dqb.dqb_curinodes - inodes;
+        if (newinodes <= dquot->dq_dqb.dqb_isoftlimit)
                 return QUOTA_NL_ISOFTBELOW;
         if (dquot->dq_dqb.dqb_curinodes >= dquot->dq_dqb.dqb_ihardlimit &&
-            dquot->dq_dqb.dqb_curinodes - inodes < dquot->dq_dqb.dqb_ihardlimit)
+            newinodes < dquot->dq_dqb.dqb_ihardlimit)
                 return QUOTA_NL_IHARDBELOW;
         return QUOTA_NL_NOWARN;
 }
@@ -1466,7 +1507,8 @@ int dquot_alloc_inode(const struct inode *inode, qsize_t number)
         for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
                 if (!inode->i_dquot[cnt])
                         continue;
-                if (check_idq(inode->i_dquot[cnt], number, warntype+cnt) == NO_QUOTA)
+                if (check_idq(inode->i_dquot[cnt], number, warntype+cnt)
+                    == NO_QUOTA)
                         goto warn_put_all;
         }
 
@@ -1673,19 +1715,13 @@ int dquot_transfer(struct inode *inode, struct iattr *iattr)
                 transfer_from[cnt] = NULL;
                 transfer_to[cnt] = NULL;
                 warntype_to[cnt] = QUOTA_NL_NOWARN;
-                switch (cnt) {
-                        case USRQUOTA:
-                                if (!chuid)
-                                        continue;
-                                transfer_to[cnt] = dqget(inode->i_sb, iattr->ia_uid, cnt);
-                                break;
-                        case GRPQUOTA:
-                                if (!chgid)
-                                        continue;
-                                transfer_to[cnt] = dqget(inode->i_sb, iattr->ia_gid, cnt);
-                                break;
-                }
         }
+        if (chuid)
+                transfer_to[USRQUOTA] = dqget(inode->i_sb, iattr->ia_uid,
+                                              USRQUOTA);
+        if (chgid)
+                transfer_to[GRPQUOTA] = dqget(inode->i_sb, iattr->ia_gid,
+                                              GRPQUOTA);
 
         down_write(&sb_dqopt(inode->i_sb)->dqptr_sem);
         /* Now recheck reliably when holding dqptr_sem */
@@ -1881,8 +1917,8 @@ int vfs_quota_disable(struct super_block *sb, int type, unsigned int flags)
                 drop_dquot_ref(sb, cnt);
                 invalidate_dquots(sb, cnt);
                 /*
-                 * Now all dquots should be invalidated, all writes done so we should be only
-                 * users of the info. No locks needed.
+                 * Now all dquots should be invalidated, all writes done so we
+                 * should be only users of the info. No locks needed.
                  */
                 if (info_dirty(&dqopt->info[cnt]))
                         sb->dq_op->write_info(sb, cnt);
@@ -1920,10 +1956,12 @@ int vfs_quota_disable(struct super_block *sb, int type, unsigned int flags)
                         /* If quota was reenabled in the meantime, we have
                          * nothing to do */
                         if (!sb_has_quota_loaded(sb, cnt)) {
-                                mutex_lock_nested(&toputinode[cnt]->i_mutex, I_MUTEX_QUOTA);
+                                mutex_lock_nested(&toputinode[cnt]->i_mutex,
+                                                  I_MUTEX_QUOTA);
                                 toputinode[cnt]->i_flags &= ~(S_IMMUTABLE |
                                   S_NOATIME | S_NOQUOTA);
-                                truncate_inode_pages(&toputinode[cnt]->i_data, 0);
+                                truncate_inode_pages(&toputinode[cnt]->i_data,
+                                                     0);
                                 mutex_unlock(&toputinode[cnt]->i_mutex);
                                 mark_inode_dirty(toputinode[cnt]);
                         }
@@ -2013,7 +2051,8 @@ static int vfs_load_quota_inode(struct inode *inode, int type, int format_id,
                  * possible) Also nobody should write to the file - we use
                  * special IO operations which ignore the immutable bit. */
                 down_write(&dqopt->dqptr_sem);
-                oldflags = inode->i_flags & (S_NOATIME | S_IMMUTABLE | S_NOQUOTA);
+                oldflags = inode->i_flags & (S_NOATIME | S_IMMUTABLE |
+                                             S_NOQUOTA);
                 inode->i_flags |= S_NOQUOTA | S_NOATIME | S_IMMUTABLE;
                 up_write(&dqopt->dqptr_sem);
                 sb->dq_op->drop(inode);
@@ -2032,7 +2071,8 @@ static int vfs_load_quota_inode(struct inode *inode, int type, int format_id,
         dqopt->info[type].dqi_fmt_id = format_id;
         INIT_LIST_HEAD(&dqopt->info[type].dqi_dirty_list);
         mutex_lock(&dqopt->dqio_mutex);
-        if ((error = dqopt->ops[type]->read_file_info(sb, type)) < 0) {
+        error = dqopt->ops[type]->read_file_info(sb, type);
+        if (error < 0) {
                 mutex_unlock(&dqopt->dqio_mutex);
                 goto out_file_init;
         }
@@ -2254,7 +2294,8 @@ static void do_get_dqblk(struct dquot *dquot, struct if_dqblk *di)
         spin_unlock(&dq_data_lock);
 }
 
-int vfs_get_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di)
+int vfs_get_dqblk(struct super_block *sb, int type, qid_t id,
+                  struct if_dqblk *di)
 {
         struct dquot *dquot;
 
@@ -2318,22 +2359,25 @@ static int do_set_dqblk(struct dquot *dquot, struct if_dqblk *di)
         }
 
         if (check_blim) {
-                if (!dm->dqb_bsoftlimit || dm->dqb_curspace < dm->dqb_bsoftlimit) {
+                if (!dm->dqb_bsoftlimit ||
+                    dm->dqb_curspace < dm->dqb_bsoftlimit) {
                         dm->dqb_btime = 0;
                         clear_bit(DQ_BLKS_B, &dquot->dq_flags);
-                }
-                else if (!(di->dqb_valid & QIF_BTIME))  /* Set grace only if user hasn't provided his own... */
+                } else if (!(di->dqb_valid & QIF_BTIME))
+                        /* Set grace only if user hasn't provided his own... */
                         dm->dqb_btime = get_seconds() + dqi->dqi_bgrace;
         }
         if (check_ilim) {
-                if (!dm->dqb_isoftlimit || dm->dqb_curinodes < dm->dqb_isoftlimit) {
+                if (!dm->dqb_isoftlimit ||
+                    dm->dqb_curinodes < dm->dqb_isoftlimit) {
                         dm->dqb_itime = 0;
                         clear_bit(DQ_INODES_B, &dquot->dq_flags);
-                }
-                else if (!(di->dqb_valid & QIF_ITIME))  /* Set grace only if user hasn't provided his own... */
+                } else if (!(di->dqb_valid & QIF_ITIME))
+                        /* Set grace only if user hasn't provided his own... */
                         dm->dqb_itime = get_seconds() + dqi->dqi_igrace;
         }
-        if (dm->dqb_bhardlimit || dm->dqb_bsoftlimit || dm->dqb_ihardlimit || dm->dqb_isoftlimit)
+        if (dm->dqb_bhardlimit || dm->dqb_bsoftlimit || dm->dqb_ihardlimit ||
+            dm->dqb_isoftlimit)
                 clear_bit(DQ_FAKE_B, &dquot->dq_flags);
         else
                 set_bit(DQ_FAKE_B, &dquot->dq_flags);
@@ -2343,7 +2387,8 @@ static int do_set_dqblk(struct dquot *dquot, struct if_dqblk *di)
         return 0;
 }
 
-int vfs_set_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di)
+int vfs_set_dqblk(struct super_block *sb, int type, qid_t id,
+                  struct if_dqblk *di)
 {
         struct dquot *dquot;
         int rc;
@@ -2400,7 +2445,8 @@ int vfs_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii)
         if (ii->dqi_valid & IIF_IGRACE)
                 mi->dqi_igrace = ii->dqi_igrace;
         if (ii->dqi_valid & IIF_FLAGS)
-                mi->dqi_flags = (mi->dqi_flags & ~DQF_MASK) | (ii->dqi_flags & DQF_MASK);
+                mi->dqi_flags = (mi->dqi_flags & ~DQF_MASK) |
+                                (ii->dqi_flags & DQF_MASK);
         spin_unlock(&dq_data_lock);
         mark_info_dirty(sb, type);
         /* Force write to disk */
@@ -2559,7 +2605,8 @@ static int __init dquot_init(void)
 
 #ifdef CONFIG_QUOTA_NETLINK_INTERFACE
         if (genl_register_family(&quota_genl_family) != 0)
-                printk(KERN_ERR "VFS: Failed to create quota netlink interface.\n");
+                printk(KERN_ERR
+                       "VFS: Failed to create quota netlink interface.\n");
 #endif
 
         return 0;
diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index 89541bcbe27c..b7f5a468f076 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -20,7 +20,8 @@
 #include <linux/types.h>
 
 /* Check validity of generic quotactl commands */
-static int generic_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t id)
+static int generic_quotactl_valid(struct super_block *sb, int type, int cmd,
+                                  qid_t id)
 {
         if (type >= MAXQUOTAS)
                 return -EINVAL;
@@ -72,7 +73,8 @@ static int generic_quotactl_valid(struct super_block *sb, int type, int cmd, qid
                 case Q_SETINFO:
                 case Q_SETQUOTA:
                 case Q_GETQUOTA:
-                        /* This is just informative test so we are satisfied without a lock */
+                        /* This is just an informative test so we are satisfied
+                         * without the lock */
                         if (!sb_has_quota_active(sb, type))
                                 return -ESRCH;
         }
@@ -92,7 +94,8 @@ static int generic_quotactl_valid(struct super_block *sb, int type, int cmd, qid
 }
 
 /* Check validity of XFS Quota Manager commands */
-static int xqm_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t id)
+static int xqm_quotactl_valid(struct super_block *sb, int type, int cmd,
+                              qid_t id)
 {
         if (type >= XQM_MAXQUOTAS)
                 return -EINVAL;
@@ -142,7 +145,8 @@ static int xqm_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t i
         return 0;
 }
 
-static int check_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t id)
+static int check_quotactl_valid(struct super_block *sb, int type, int cmd,
+                                qid_t id)
 {
         int error;
 
@@ -180,7 +184,8 @@ static void quota_sync_sb(struct super_block *sb, int type)
                         continue;
                 if (!sb_has_quota_active(sb, cnt))
                         continue;
-                mutex_lock_nested(&sb_dqopt(sb)->files[cnt]->i_mutex, I_MUTEX_QUOTA);
+                mutex_lock_nested(&sb_dqopt(sb)->files[cnt]->i_mutex,
+                                  I_MUTEX_QUOTA);
                 truncate_inode_pages(&sb_dqopt(sb)->files[cnt]->i_data, 0);
                 mutex_unlock(&sb_dqopt(sb)->files[cnt]->i_mutex);
         }
@@ -200,14 +205,15 @@ void sync_dquots(struct super_block *sb, int type)
         spin_lock(&sb_lock);
 restart:
         list_for_each_entry(sb, &super_blocks, s_list) {
-                /* This test just improves performance so it needn't be reliable... */
+                /* This test just improves performance so it needn't be
+                 * reliable... */
                 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
                         if (type != -1 && type != cnt)
                                 continue;
                         if (!sb_has_quota_active(sb, cnt))
                                 continue;
                         if (!info_dirty(&sb_dqopt(sb)->info[cnt]) &&
-                            list_empty(&sb_dqopt(sb)->info[cnt].dqi_dirty_list))
+                           list_empty(&sb_dqopt(sb)->info[cnt].dqi_dirty_list))
                                 continue;
                         break;
                 }
@@ -227,7 +233,8 @@ restart:
 }
 
 /* Copy parameters and call proper function */
-static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id, void __user *addr)
+static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id,
+                       void __user *addr)
 {
         int ret;
 
@@ -235,7 +242,8 @@ static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id, void
                 case Q_QUOTAON: {
                         char *pathname;
 
-                        if (IS_ERR(pathname = getname(addr)))
+                        pathname = getname(addr);
+                        if (IS_ERR(pathname))
                                 return PTR_ERR(pathname);
                         ret = sb->s_qcop->quota_on(sb, type, id, pathname, 0);
                         putname(pathname);
@@ -261,7 +269,8 @@ static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id, void
                 case Q_GETINFO: {
                         struct if_dqinfo info;
 
-                        if ((ret = sb->s_qcop->get_info(sb, type, &info)))
+                        ret = sb->s_qcop->get_info(sb, type, &info);
+                        if (ret)
                                 return ret;
                         if (copy_to_user(addr, &info, sizeof(info)))
                                 return -EFAULT;
@@ -277,7 +286,8 @@ static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id, void
                 case Q_GETQUOTA: {
                         struct if_dqblk idq;
 
-                        if ((ret = sb->s_qcop->get_dqblk(sb, type, id, &idq)))
+                        ret = sb->s_qcop->get_dqblk(sb, type, id, &idq);
+                        if (ret)
                                 return ret;
                         if (copy_to_user(addr, &idq, sizeof(idq)))
                                 return -EFAULT;
@@ -322,7 +332,8 @@ static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id, void
                 case Q_XGETQUOTA: {
                         struct fs_disk_quota fdq;
 
-                        if ((ret = sb->s_qcop->get_xquota(sb, type, id, &fdq)))
+                        ret = sb->s_qcop->get_xquota(sb, type, id, &fdq);
+                        if (ret)
                                 return ret;
                         if (copy_to_user(addr, &fdq, sizeof(fdq)))
                                 return -EFAULT;
diff --git a/fs/quota/quota_tree.c b/fs/quota/quota_tree.c
index 48e35a48f1c2..f81f4bcfb178 100644
--- a/fs/quota/quota_tree.c
+++ b/fs/quota/quota_tree.c
@@ -43,7 +43,8 @@ static char *getdqbuf(size_t size)
 {
         char *buf = kmalloc(size, GFP_NOFS);
         if (!buf)
-                printk(KERN_WARNING "VFS: Not enough memory for quota buffers.\n");
+                printk(KERN_WARNING
+                       "VFS: Not enough memory for quota buffers.\n");
         return buf;
 }
 
@@ -113,7 +114,8 @@ static int put_free_dqblk(struct qtree_mem_dqinfo *info, char *buf, uint blk)
 }
 
 /* Remove given block from the list of blocks with free entries */
-static int remove_free_dqentry(struct qtree_mem_dqinfo *info, char *buf, uint blk)
+static int remove_free_dqentry(struct qtree_mem_dqinfo *info, char *buf,
+                               uint blk)
 {
         char *tmpbuf = getdqbuf(info->dqi_usable_bs);
         struct qt_disk_dqdbheader *dh = (struct qt_disk_dqdbheader *)buf;
@@ -150,7 +152,9 @@ static int remove_free_dqentry(struct qtree_mem_dqinfo *info, char *buf, uint bl
         dh->dqdh_next_free = dh->dqdh_prev_free = cpu_to_le32(0);
         /* No matter whether write succeeds block is out of list */
         if (write_blk(info, blk, buf) < 0)
-                printk(KERN_ERR "VFS: Can't write block (%u) with free entries.\n", blk);
+                printk(KERN_ERR
+                       "VFS: Can't write block (%u) with free entries.\n",
+                       blk);
         return 0;
 out_buf:
         kfree(tmpbuf);
@@ -158,7 +162,8 @@ out_buf:
 }
 
 /* Insert given block to the beginning of list with free entries */
-static int insert_free_dqentry(struct qtree_mem_dqinfo *info, char *buf, uint blk)
+static int insert_free_dqentry(struct qtree_mem_dqinfo *info, char *buf,
+                               uint blk)
 {
         char *tmpbuf = getdqbuf(info->dqi_usable_bs);
         struct qt_disk_dqdbheader *dh = (struct qt_disk_dqdbheader *)buf;
@@ -230,7 +235,8 @@ static uint find_free_dqentry(struct qtree_mem_dqinfo *info,
                         return 0;
                 }
                 memset(buf, 0, info->dqi_usable_bs);
-                /* This is enough as block is already zeroed and entry list is empty... */
+                /* This is enough as the block is already zeroed and the entry
+                 * list is empty... */
                 info->dqi_free_entry = blk;
                 mark_info_dirty(dquot->dq_sb, dquot->dq_type);
         }
@@ -246,10 +252,12 @@ static uint find_free_dqentry(struct qtree_mem_dqinfo *info,
         }
         le16_add_cpu(&dh->dqdh_entries, 1);
         /* Find free structure in block */
-        for (i = 0, ddquot = buf + sizeof(struct qt_disk_dqdbheader);
-             i < qtree_dqstr_in_blk(info) && !qtree_entry_unused(info, ddquot);
-             i++, ddquot += info->dqi_entry_size)
-                ;
+        ddquot = buf + sizeof(struct qt_disk_dqdbheader);
+        for (i = 0; i < qtree_dqstr_in_blk(info); i++) {
+                if (qtree_entry_unused(info, ddquot))
+                        break;
+                ddquot += info->dqi_entry_size;
+        }
 #ifdef __QUOTA_QT_PARANOIA
         if (i == qtree_dqstr_in_blk(info)) {
                 printk(KERN_ERR "VFS: find_free_dqentry(): Data block full "
@@ -340,7 +348,8 @@ static inline int dq_insert_tree(struct qtree_mem_dqinfo *info,
 }
 
 /*
- *      We don't have to be afraid of deadlocks as we never have quotas on quota files...
+ * We don't have to be afraid of deadlocks as we never have quotas on quota
+ * files...
  */
 int qtree_write_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot)
 {
@@ -515,10 +524,12 @@ static loff_t find_block_dqentry(struct qtree_mem_dqinfo *info,
                 printk(KERN_ERR "VFS: Can't read quota tree block %u.\n", blk);
                 goto out_buf;
         }
-        for (i = 0, ddquot = buf + sizeof(struct qt_disk_dqdbheader);
-             i < qtree_dqstr_in_blk(info) && !info->dqi_ops->is_id(ddquot, dquot);
-             i++, ddquot += info->dqi_entry_size)
-                ;
+        ddquot = buf + sizeof(struct qt_disk_dqdbheader);
+        for (i = 0; i < qtree_dqstr_in_blk(info); i++) {
+                if (info->dqi_ops->is_id(ddquot, dquot))
+                        break;
+                ddquot += info->dqi_entry_size;
+        }
         if (i == qtree_dqstr_in_blk(info)) {
                 printk(KERN_ERR "VFS: Quota for id %u referenced "
                   "but not present.\n", dquot->dq_id);
@@ -632,7 +643,8 @@ EXPORT_SYMBOL(qtree_read_dquot);
  * the only one operating on dquot (thanks to dq_lock) */
 int qtree_release_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot)
 {
-        if (test_bit(DQ_FAKE_B, &dquot->dq_flags) && !(dquot->dq_dqb.dqb_curinodes | dquot->dq_dqb.dqb_curspace))
+        if (test_bit(DQ_FAKE_B, &dquot->dq_flags) &&
+            !(dquot->dq_dqb.dqb_curinodes | dquot->dq_dqb.dqb_curspace))
                 return qtree_delete_dquot(info, dquot);
         return 0;
 }
diff --git a/fs/quota/quota_v1.c b/fs/quota/quota_v1.c
index b4af1c69ad16..0edcf42b1778 100644
--- a/fs/quota/quota_v1.c
+++ b/fs/quota/quota_v1.c
@@ -62,11 +62,14 @@ static int v1_read_dqblk(struct dquot *dquot)
 
         /* Set structure to 0s in case read fails/is after end of file */
         memset(&dqblk, 0, sizeof(struct v1_disk_dqblk));
-        dquot->dq_sb->s_op->quota_read(dquot->dq_sb, type, (char *)&dqblk, sizeof(struct v1_disk_dqblk), v1_dqoff(dquot->dq_id));
+        dquot->dq_sb->s_op->quota_read(dquot->dq_sb, type, (char *)&dqblk,
+                        sizeof(struct v1_disk_dqblk), v1_dqoff(dquot->dq_id));
 
         v1_disk2mem_dqblk(&dquot->dq_dqb, &dqblk);
-        if (dquot->dq_dqb.dqb_bhardlimit == 0 && dquot->dq_dqb.dqb_bsoftlimit == 0 &&
-            dquot->dq_dqb.dqb_ihardlimit == 0 && dquot->dq_dqb.dqb_isoftlimit == 0)
+        if (dquot->dq_dqb.dqb_bhardlimit == 0 &&
+            dquot->dq_dqb.dqb_bsoftlimit == 0 &&
+            dquot->dq_dqb.dqb_ihardlimit == 0 &&
+            dquot->dq_dqb.dqb_isoftlimit == 0)
                 set_bit(DQ_FAKE_B, &dquot->dq_flags);
         dqstats.reads++;
 
@@ -81,13 +84,16 @@ static int v1_commit_dqblk(struct dquot *dquot)
 
         v1_mem2disk_dqblk(&dqblk, &dquot->dq_dqb);
         if (dquot->dq_id == 0) {
-                dqblk.dqb_btime = sb_dqopt(dquot->dq_sb)->info[type].dqi_bgrace;
-                dqblk.dqb_itime = sb_dqopt(dquot->dq_sb)->info[type].dqi_igrace;
+                dqblk.dqb_btime =
+                        sb_dqopt(dquot->dq_sb)->info[type].dqi_bgrace;
+                dqblk.dqb_itime =
+                        sb_dqopt(dquot->dq_sb)->info[type].dqi_igrace;
         }
         ret = 0;
         if (sb_dqopt(dquot->dq_sb)->files[type])
-                ret = dquot->dq_sb->s_op->quota_write(dquot->dq_sb, type, (char *)&dqblk,
-                                        sizeof(struct v1_disk_dqblk), v1_dqoff(dquot->dq_id));
+                ret = dquot->dq_sb->s_op->quota_write(dquot->dq_sb, type,
+                        (char *)&dqblk, sizeof(struct v1_disk_dqblk),
+                        v1_dqoff(dquot->dq_id));
         if (ret != sizeof(struct v1_disk_dqblk)) {
                 printk(KERN_WARNING "VFS: dquota write failed on dev %s\n",
                         dquot->dq_sb->s_id);
@@ -130,15 +136,20 @@ static int v1_check_quota_file(struct super_block *sb, int type)
                 return 0;
         blocks = isize >> BLOCK_SIZE_BITS;
         off = isize & (BLOCK_SIZE - 1);
-        if ((blocks % sizeof(struct v1_disk_dqblk) * BLOCK_SIZE + off) % sizeof(struct v1_disk_dqblk))
+        if ((blocks % sizeof(struct v1_disk_dqblk) * BLOCK_SIZE + off) %
+            sizeof(struct v1_disk_dqblk))
                 return 0;
-        /* Doublecheck whether we didn't get file with new format - with old quotactl() this could happen */
-        size = sb->s_op->quota_read(sb, type, (char *)&dqhead, sizeof(struct v2_disk_dqheader), 0);
+        /* Doublecheck whether we didn't get file with new format - with old
+         * quotactl() this could happen */
+        size = sb->s_op->quota_read(sb, type, (char *)&dqhead,
+                                    sizeof(struct v2_disk_dqheader), 0);
         if (size != sizeof(struct v2_disk_dqheader))
                 return 1;       /* Probably not new format */
         if (le32_to_cpu(dqhead.dqh_magic) != quota_magics[type])
                 return 1;       /* Definitely not new format */
-        printk(KERN_INFO "VFS: %s: Refusing to turn on old quota format on given file. It probably contains newer quota format.\n", sb->s_id);
+        printk(KERN_INFO
+               "VFS: %s: Refusing to turn on old quota format on given file."
+               " It probably contains newer quota format.\n", sb->s_id);
         return 0;               /* Seems like a new format file -> refuse it */
 }
 
@@ -148,7 +159,9 @@ static int v1_read_file_info(struct super_block *sb, int type)
         struct v1_disk_dqblk dqblk;
         int ret;
 
-        if ((ret = sb->s_op->quota_read(sb, type, (char *)&dqblk, sizeof(struct v1_disk_dqblk), v1_dqoff(0))) != sizeof(struct v1_disk_dqblk)) {
+        ret = sb->s_op->quota_read(sb, type, (char *)&dqblk,
+                                sizeof(struct v1_disk_dqblk), v1_dqoff(0));
+        if (ret != sizeof(struct v1_disk_dqblk)) {
                 if (ret >= 0)
                         ret = -EIO;
                 goto out;
@@ -157,8 +170,10 @@ static int v1_read_file_info(struct super_block *sb, int type)
         /* limits are stored as unsigned 32-bit data */
         dqopt->info[type].dqi_maxblimit = 0xffffffff;
         dqopt->info[type].dqi_maxilimit = 0xffffffff;
-        dqopt->info[type].dqi_igrace = dqblk.dqb_itime ? dqblk.dqb_itime : MAX_IQ_TIME;
-        dqopt->info[type].dqi_bgrace = dqblk.dqb_btime ? dqblk.dqb_btime : MAX_DQ_TIME;
+        dqopt->info[type].dqi_igrace =
+                        dqblk.dqb_itime ? dqblk.dqb_itime : MAX_IQ_TIME;
+        dqopt->info[type].dqi_bgrace =
+                        dqblk.dqb_btime ? dqblk.dqb_btime : MAX_DQ_TIME;
 out:
         return ret;
 }
@@ -170,8 +185,9 @@ static int v1_write_file_info(struct super_block *sb, int type)
         int ret;
 
         dqopt->info[type].dqi_flags &= ~DQF_INFO_DIRTY;
-        if ((ret = sb->s_op->quota_read(sb, type, (char *)&dqblk,
-            sizeof(struct v1_disk_dqblk), v1_dqoff(0))) != sizeof(struct v1_disk_dqblk)) {
+        ret = sb->s_op->quota_read(sb, type, (char *)&dqblk,
+                                sizeof(struct v1_disk_dqblk), v1_dqoff(0));
+        if (ret != sizeof(struct v1_disk_dqblk)) {
                 if (ret >= 0)
                         ret = -EIO;
                 goto out;
diff --git a/fs/quota/quota_v2.c b/fs/quota/quota_v2.c
index b618b563635c..a5475fb1ae44 100644
--- a/fs/quota/quota_v2.c
+++ b/fs/quota/quota_v2.c
@@ -54,7 +54,8 @@ static int v2_check_quota_file(struct super_block *sb, int type)
         static const uint quota_magics[] = V2_INITQMAGICS;
         static const uint quota_versions[] = V2_INITQVERSIONS;
  
-        size = sb->s_op->quota_read(sb, type, (char *)&dqhead, sizeof(struct v2_disk_dqheader), 0);
+        size = sb->s_op->quota_read(sb, type, (char *)&dqhead,
+                                    sizeof(struct v2_disk_dqheader), 0);
         if (size != sizeof(struct v2_disk_dqheader)) {
                 printk("quota_v2: failed read expected=%zd got=%zd\n",
                         sizeof(struct v2_disk_dqheader), size);