aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorJan Kara <jack@suse.cz>2005-06-23 22:01:06 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-24 00:05:20 -0700
commit556a2a45bce1740f035befaa7201e4ad836c7257 (patch)
treed4a85b6f2bd02ab5c7c194e351508b80035f07c5
parent1f54587bea84a35125c95e19b98c2f464c50871b (diff)
downloadmrst-s0i3-test-556a2a45bce1740f035befaa7201e4ad836c7257.tar.gz
mrst-s0i3-test-556a2a45bce1740f035befaa7201e4ad836c7257.tar.xz
mrst-s0i3-test-556a2a45bce1740f035befaa7201e4ad836c7257.zip
[PATCH] quota: reiserfs: improve quota credit estimates
Use improved credits estimates for quota operations. Also reserve space for a quota operation in a transaction only if filesystem was mounted with some quota option. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--fs/reiserfs/file.c4
-rw-r--r--fs/reiserfs/inode.c11
-rw-r--r--fs/reiserfs/namei.c25
-rw-r--r--fs/reiserfs/super.c35
-rw-r--r--include/linux/reiserfs_fs.h15
-rw-r--r--include/linux/reiserfs_fs_sb.h2
6 files changed, 58 insertions, 34 deletions
diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index 2230afff187..12e91209544 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -201,7 +201,7 @@ static int reiserfs_allocate_blocks_for_region(
/* If we came here, it means we absolutely need to open a transaction,
since we need to allocate some blocks */
reiserfs_write_lock(inode->i_sb); // Journaling stuff and we need that.
- res = journal_begin(th, inode->i_sb, JOURNAL_PER_BALANCE_CNT * 3 + 1 + 2 * REISERFS_QUOTA_TRANS_BLOCKS); // Wish I know if this number enough
+ res = journal_begin(th, inode->i_sb, JOURNAL_PER_BALANCE_CNT * 3 + 1 + 2 * REISERFS_QUOTA_TRANS_BLOCKS(inode->i_sb)); // Wish I know if this number enough
if (res)
goto error_exit;
reiserfs_update_inode_transaction(inode) ;
@@ -576,7 +576,7 @@ error_exit:
int err;
// update any changes we made to blk count
reiserfs_update_sd(th, inode);
- err = journal_end(th, inode->i_sb, JOURNAL_PER_BALANCE_CNT * 3 + 1 + 2 * REISERFS_QUOTA_TRANS_BLOCKS);
+ err = journal_end(th, inode->i_sb, JOURNAL_PER_BALANCE_CNT * 3 + 1 + 2 * REISERFS_QUOTA_TRANS_BLOCKS(inode->i_sb));
if (err)
res = err;
}
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 073425e6e0a..0d5817f8197 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -28,7 +28,7 @@ static int reiserfs_prepare_write(struct file *f, struct page *page,
void reiserfs_delete_inode (struct inode * inode)
{
/* We need blocks for transaction + (user+group) quota update (possibly delete) */
- int jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 * REISERFS_QUOTA_INIT_BLOCKS;
+ int jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 * REISERFS_QUOTA_INIT_BLOCKS(inode->i_sb);
struct reiserfs_transaction_handle th ;
reiserfs_write_lock(inode->i_sb);
@@ -591,7 +591,7 @@ int reiserfs_get_block (struct inode * inode, sector_t block,
XXX in practically impossible worst case direct2indirect()
can incur (much) more than 3 balancings.
quota update for user, group */
- int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 1 + 2 * REISERFS_QUOTA_TRANS_BLOCKS;
+ int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 1 + 2 * REISERFS_QUOTA_TRANS_BLOCKS(inode->i_sb);
int version;
int dangle = 1;
loff_t new_offset = (((loff_t)block) << inode->i_sb->s_blocksize_bits) + 1 ;
@@ -2796,14 +2796,15 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) {
if (!error) {
struct reiserfs_transaction_handle th;
+ int jbegin_count = 2*(REISERFS_QUOTA_INIT_BLOCKS(inode->i_sb)+REISERFS_QUOTA_DEL_BLOCKS(inode->i_sb))+2;
/* (user+group)*(old+new) structure - we count quota info and , inode write (sb, inode) */
- error = journal_begin(&th, inode->i_sb, 4*REISERFS_QUOTA_INIT_BLOCKS+2);
+ error = journal_begin(&th, inode->i_sb, jbegin_count);
if (error)
goto out;
error = DQUOT_TRANSFER(inode, attr) ? -EDQUOT : 0;
if (error) {
- journal_end(&th, inode->i_sb, 4*REISERFS_QUOTA_INIT_BLOCKS+2);
+ journal_end(&th, inode->i_sb, jbegin_count);
goto out;
}
/* Update corresponding info in inode so that everything is in
@@ -2813,7 +2814,7 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) {
if (attr->ia_valid & ATTR_GID)
inode->i_gid = attr->ia_gid;
mark_inode_dirty(inode);
- error = journal_end(&th, inode->i_sb, 4*REISERFS_QUOTA_INIT_BLOCKS+2);
+ error = journal_end(&th, inode->i_sb, jbegin_count);
}
}
if (!error)
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index 7d4dc5f5aa8..4a333255f27 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -586,7 +586,7 @@ static int reiserfs_create (struct inode * dir, struct dentry *dentry, int mode,
int retval;
struct inode * inode;
/* We need blocks for transaction + (user+group)*(quotas for new inode + update of quota for directory owner) */
- int jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 * (REISERFS_QUOTA_INIT_BLOCKS+REISERFS_QUOTA_TRANS_BLOCKS);
+ int jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 * (REISERFS_QUOTA_INIT_BLOCKS(dir->i_sb)+REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb));
struct reiserfs_transaction_handle th ;
int locked;
@@ -653,7 +653,7 @@ static int reiserfs_mknod (struct inode * dir, struct dentry *dentry, int mode,
struct inode * inode;
struct reiserfs_transaction_handle th ;
/* We need blocks for transaction + (user+group)*(quotas for new inode + update of quota for directory owner) */
- int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * (REISERFS_QUOTA_INIT_BLOCKS+REISERFS_QUOTA_TRANS_BLOCKS);
+ int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * (REISERFS_QUOTA_INIT_BLOCKS(dir->i_sb)+REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb));
int locked;
if (!new_valid_dev(rdev))
@@ -727,7 +727,7 @@ static int reiserfs_mkdir (struct inode * dir, struct dentry *dentry, int mode)
struct inode * inode;
struct reiserfs_transaction_handle th ;
/* We need blocks for transaction + (user+group)*(quotas for new inode + update of quota for directory owner) */
- int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * (REISERFS_QUOTA_INIT_BLOCKS+REISERFS_QUOTA_TRANS_BLOCKS);
+ int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * (REISERFS_QUOTA_INIT_BLOCKS(dir->i_sb)+REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb));
int locked;
#ifdef DISPLACE_NEW_PACKING_LOCALITIES
@@ -829,8 +829,10 @@ static int reiserfs_rmdir (struct inode * dir, struct dentry *dentry)
/* we will be doing 2 balancings and update 2 stat data, we change quotas
- * of the owner of the directory and of the owner of the parent directory */
- jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 + 2 * (REISERFS_QUOTA_INIT_BLOCKS+REISERFS_QUOTA_TRANS_BLOCKS);
+ * of the owner of the directory and of the owner of the parent directory.
+ * The quota structure is possibly deleted only on last iput => outside
+ * of this transaction */
+ jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 + 4 * REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb);
reiserfs_write_lock(dir->i_sb);
retval = journal_begin(&th, dir->i_sb, jbegin_count) ;
@@ -913,9 +915,10 @@ static int reiserfs_unlink (struct inode * dir, struct dentry *dentry)
inode = dentry->d_inode;
/* in this transaction we can be doing at max two balancings and update
- two stat datas, we change quotas of the owner of the directory and of
- the owner of the parent directory */
- jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 + 2 * (REISERFS_QUOTA_INIT_BLOCKS+REISERFS_QUOTA_TRANS_BLOCKS);
+ * two stat datas, we change quotas of the owner of the directory and of
+ * the owner of the parent directory. The quota structure is possibly
+ * deleted only on iput => outside of this transaction */
+ jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 + 4 * REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb);
reiserfs_write_lock(dir->i_sb);
retval = journal_begin(&th, dir->i_sb, jbegin_count) ;
@@ -1000,7 +1003,7 @@ static int reiserfs_symlink (struct inode * parent_dir,
struct reiserfs_transaction_handle th ;
int mode = S_IFLNK | S_IRWXUGO;
/* We need blocks for transaction + (user+group)*(quotas for new inode + update of quota for directory owner) */
- int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * (REISERFS_QUOTA_INIT_BLOCKS+REISERFS_QUOTA_TRANS_BLOCKS);
+ int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * (REISERFS_QUOTA_INIT_BLOCKS(parent_dir->i_sb)+REISERFS_QUOTA_TRANS_BLOCKS(parent_dir->i_sb));
if (!(inode = new_inode(parent_dir->i_sb))) {
return -ENOMEM ;
@@ -1076,7 +1079,7 @@ static int reiserfs_link (struct dentry * old_dentry, struct inode * dir, struct
struct inode *inode = old_dentry->d_inode;
struct reiserfs_transaction_handle th ;
/* We need blocks for transaction + update of quotas for the owners of the directory */
- int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * REISERFS_QUOTA_TRANS_BLOCKS;
+ int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb);
reiserfs_write_lock(dir->i_sb);
if (inode->i_nlink >= REISERFS_LINK_MAX) {
@@ -1196,7 +1199,7 @@ static int reiserfs_rename (struct inode * old_dir, struct dentry *old_dentry,
pointed initially and (5) maybe block containing ".." of
renamed directory
quota updates: two parent directories */
- jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 5 + 4 * REISERFS_QUOTA_TRANS_BLOCKS;
+ jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 5 + 4 * REISERFS_QUOTA_TRANS_BLOCKS(old_dir->i_sb);
old_inode = old_dentry->d_inode;
new_dentry_inode = new_dentry->d_inode;
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 031577fb41a..660aefca1fd 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -866,8 +866,9 @@ static int reiserfs_parse_options (struct super_block * s, char * options, /* st
{"jdev", .arg_required = 'j', .values = NULL},
{"nolargeio", .arg_required = 'w', .values = NULL},
{"commit", .arg_required = 'c', .values = NULL},
- {"usrquota",},
- {"grpquota",},
+ {"usrquota", .setmask = 1<<REISERFS_QUOTA},
+ {"grpquota", .setmask = 1<<REISERFS_QUOTA},
+ {"noquota", .clrmask = 1<<REISERFS_QUOTA},
{"errors", .arg_required = 'e', .values = error_actions},
{"usrjquota", .arg_required = 'u'|(1<<REISERFS_OPT_ALLOWEMPTY), .values = NULL},
{"grpjquota", .arg_required = 'g'|(1<<REISERFS_OPT_ALLOWEMPTY), .values = NULL},
@@ -964,6 +965,7 @@ static int reiserfs_parse_options (struct super_block * s, char * options, /* st
return 0;
}
strcpy(REISERFS_SB(s)->s_qf_names[qtype], arg);
+ *mount_options |= 1<<REISERFS_QUOTA;
}
else {
if (REISERFS_SB(s)->s_qf_names[qtype]) {
@@ -995,7 +997,13 @@ static int reiserfs_parse_options (struct super_block * s, char * options, /* st
reiserfs_warning(s, "reiserfs_parse_options: journalled quota format not specified.");
return 0;
}
+ /* This checking is not precise wrt the quota type but for our purposes it is sufficient */
+ if (!(*mount_options & (1<<REISERFS_QUOTA)) && sb_any_quota_enabled(s)) {
+ reiserfs_warning(s, "reiserfs_parse_options: quota options must be present when quota is turned on.");
+ return 0;
+ }
#endif
+
return 1;
}
@@ -1105,6 +1113,7 @@ static int reiserfs_remount (struct super_block * s, int * mount_flags, char * a
safe_mask |= 1 << REISERFS_ERROR_RO;
safe_mask |= 1 << REISERFS_ERROR_CONTINUE;
safe_mask |= 1 << REISERFS_ERROR_PANIC;
+ safe_mask |= 1 << REISERFS_QUOTA;
/* Update the bitmask, taking care to keep
* the bits we're not allowed to change here */
@@ -1845,11 +1854,11 @@ static int reiserfs_dquot_initialize(struct inode *inode, int type)
/* We may create quota structure so we need to reserve enough blocks */
reiserfs_write_lock(inode->i_sb);
- ret = journal_begin(&th, inode->i_sb, 2*REISERFS_QUOTA_INIT_BLOCKS);
+ ret = journal_begin(&th, inode->i_sb, 2*REISERFS_QUOTA_INIT_BLOCKS(inode->i_sb));
if (ret)
goto out;
ret = dquot_initialize(inode, type);
- err = journal_end(&th, inode->i_sb, 2*REISERFS_QUOTA_INIT_BLOCKS);
+ err = journal_end(&th, inode->i_sb, 2*REISERFS_QUOTA_INIT_BLOCKS(inode->i_sb));
if (!ret && err)
ret = err;
out:
@@ -1864,11 +1873,11 @@ static int reiserfs_dquot_drop(struct inode *inode)
/* We may delete quota structure so we need to reserve enough blocks */
reiserfs_write_lock(inode->i_sb);
- ret = journal_begin(&th, inode->i_sb, 2*REISERFS_QUOTA_INIT_BLOCKS);
+ ret = journal_begin(&th, inode->i_sb, 2*REISERFS_QUOTA_DEL_BLOCKS(inode->i_sb));
if (ret)
goto out;
ret = dquot_drop(inode);
- err = journal_end(&th, inode->i_sb, 2*REISERFS_QUOTA_INIT_BLOCKS);
+ err = journal_end(&th, inode->i_sb, 2*REISERFS_QUOTA_DEL_BLOCKS(inode->i_sb));
if (!ret && err)
ret = err;
out:
@@ -1882,11 +1891,11 @@ static int reiserfs_write_dquot(struct dquot *dquot)
int ret, err;
reiserfs_write_lock(dquot->dq_sb);
- ret = journal_begin(&th, dquot->dq_sb, REISERFS_QUOTA_TRANS_BLOCKS);
+ ret = journal_begin(&th, dquot->dq_sb, REISERFS_QUOTA_TRANS_BLOCKS(dquot->dq_sb));
if (ret)
goto out;
ret = dquot_commit(dquot);
- err = journal_end(&th, dquot->dq_sb, REISERFS_QUOTA_TRANS_BLOCKS);
+ err = journal_end(&th, dquot->dq_sb, REISERFS_QUOTA_TRANS_BLOCKS(dquot->dq_sb));
if (!ret && err)
ret = err;
out:
@@ -1900,11 +1909,11 @@ static int reiserfs_acquire_dquot(struct dquot *dquot)
int ret, err;
reiserfs_write_lock(dquot->dq_sb);
- ret = journal_begin(&th, dquot->dq_sb, REISERFS_QUOTA_INIT_BLOCKS);
+ ret = journal_begin(&th, dquot->dq_sb, REISERFS_QUOTA_INIT_BLOCKS(dquot->dq_sb));
if (ret)
goto out;
ret = dquot_acquire(dquot);
- err = journal_end(&th, dquot->dq_sb, REISERFS_QUOTA_INIT_BLOCKS);
+ err = journal_end(&th, dquot->dq_sb, REISERFS_QUOTA_INIT_BLOCKS(dquot->dq_sb));
if (!ret && err)
ret = err;
out:
@@ -1918,11 +1927,11 @@ static int reiserfs_release_dquot(struct dquot *dquot)
int ret, err;
reiserfs_write_lock(dquot->dq_sb);
- ret = journal_begin(&th, dquot->dq_sb, REISERFS_QUOTA_INIT_BLOCKS);
+ ret = journal_begin(&th, dquot->dq_sb, REISERFS_QUOTA_DEL_BLOCKS(dquot->dq_sb));
if (ret)
goto out;
ret = dquot_release(dquot);
- err = journal_end(&th, dquot->dq_sb, REISERFS_QUOTA_INIT_BLOCKS);
+ err = journal_end(&th, dquot->dq_sb, REISERFS_QUOTA_DEL_BLOCKS(dquot->dq_sb));
if (!ret && err)
ret = err;
out:
@@ -1978,6 +1987,8 @@ static int reiserfs_quota_on(struct super_block *sb, int type, int format_id, ch
int err;
struct nameidata nd;
+ if (!(REISERFS_SB(sb)->s_mount_opt & (1<<REISERFS_QUOTA)))
+ return -EINVAL;
err = path_lookup(path, LOOKUP_FOLLOW, &nd);
if (err)
return err;
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index 32148625fc2..4c7c5689ad9 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -1644,11 +1644,18 @@ struct reiserfs_journal_header {
#define JOURNAL_MAX_TRANS_AGE 30
#define JOURNAL_PER_BALANCE_CNT (3 * (MAX_HEIGHT-2) + 9)
#ifdef CONFIG_QUOTA
-#define REISERFS_QUOTA_TRANS_BLOCKS 2 /* We need to update data and inode (atime) */
-#define REISERFS_QUOTA_INIT_BLOCKS (DQUOT_MAX_WRITES*(JOURNAL_PER_BALANCE_CNT+2)+1) /* 1 balancing, 1 bitmap, 1 data per write + stat data update */
+/* We need to update data and inode (atime) */
+#define REISERFS_QUOTA_TRANS_BLOCKS(s) (REISERFS_SB(s)->s_mount_opt & (1<<REISERFS_QUOTA) ? 2 : 0)
+/* 1 balancing, 1 bitmap, 1 data per write + stat data update */
+#define REISERFS_QUOTA_INIT_BLOCKS(s) (REISERFS_SB(s)->s_mount_opt & (1<<REISERFS_QUOTA) ? \
+(DQUOT_INIT_ALLOC*(JOURNAL_PER_BALANCE_CNT+2)+DQUOT_INIT_REWRITE+1) : 0)
+/* same as with INIT */
+#define REISERFS_QUOTA_DEL_BLOCKS(s) (REISERFS_SB(s)->s_mount_opt & (1<<REISERFS_QUOTA) ? \
+(DQUOT_DEL_ALLOC*(JOURNAL_PER_BALANCE_CNT+2)+DQUOT_DEL_REWRITE+1) : 0)
#else
-#define REISERFS_QUOTA_TRANS_BLOCKS 0
-#define REISERFS_QUOTA_INIT_BLOCKS 0
+#define REISERFS_QUOTA_TRANS_BLOCKS(s) 0
+#define REISERFS_QUOTA_INIT_BLOCKS(s) 0
+#define REISERFS_QUOTA_DEL_BLOCKS(s) 0
#endif
/* both of these can be as low as 1, or as high as you want. The min is the
diff --git a/include/linux/reiserfs_fs_sb.h b/include/linux/reiserfs_fs_sb.h
index 37a3a7afbec..31c709d0fe1 100644
--- a/include/linux/reiserfs_fs_sb.h
+++ b/include/linux/reiserfs_fs_sb.h
@@ -467,6 +467,8 @@ enum reiserfs_mount_options {
REISERFS_ERROR_RO,
REISERFS_ERROR_CONTINUE,
+ REISERFS_QUOTA, /* Some quota option specified */
+
REISERFS_TEST1,
REISERFS_TEST2,
REISERFS_TEST3,