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ocfs2: Add quota calls for allocation and freeing of inodes and space

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Add quota calls for allocation and freeing of inodes and space, also update
estimates on number of needed credits for a transaction. Move out inode
allocation from ocfs2_mknod_locked() because vfs_dq_init() must be called
outside of a transaction.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
This commit is contained in:
Jan Kara
2008-10-09 19:38:40 +02:00
committed by Mark Fasheh
parent 9e33d69f55
commit a90714c150
8 changed files with 245 additions and 39 deletions
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72
fs/ocfs2/file.c
View File

@@ -35,6 +35,7 @@
#include <linux/mount.h>
#include <linux/writeback.h>
#include <linux/falloc.h>
#include <linux/quotaops.h>
#define MLOG_MASK_PREFIX ML_INODE
#include <cluster/masklog.h>
@@ -57,6 +58,7 @@
#include "super.h"
#include "xattr.h"
#include "acl.h"
#include "quota.h"
#include "buffer_head_io.h"
@@ -534,6 +536,7 @@ static int __ocfs2_extend_allocation(struct inode *inode, u32 logical_start,
enum ocfs2_alloc_restarted why;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_extent_tree et;
int did_quota = 0;
mlog_entry("(clusters_to_add = %u)\n", clusters_to_add);
@@ -577,6 +580,13 @@ restart_all:
}
restarted_transaction:
if (vfs_dq_alloc_space_nodirty(inode, ocfs2_clusters_to_bytes(osb->sb,
clusters_to_add))) {
status = -EDQUOT;
goto leave;
}
did_quota = 1;
/* reserve a write to the file entry early on - that we if we
* run out of credits in the allocation path, we can still
* update i_size. */
@@ -614,6 +624,10 @@ restarted_transaction:
spin_lock(&OCFS2_I(inode)->ip_lock);
clusters_to_add -= (OCFS2_I(inode)->ip_clusters - prev_clusters);
spin_unlock(&OCFS2_I(inode)->ip_lock);
/* Release unused quota reservation */
vfs_dq_free_space(inode,
ocfs2_clusters_to_bytes(osb->sb, clusters_to_add));
did_quota = 0;
if (why != RESTART_NONE && clusters_to_add) {
if (why == RESTART_META) {
@@ -646,6 +660,9 @@ restarted_transaction:
OCFS2_I(inode)->ip_clusters, (long long)i_size_read(inode));
leave:
if (status < 0 && did_quota)
vfs_dq_free_space(inode,
ocfs2_clusters_to_bytes(osb->sb, clusters_to_add));
if (handle) {
ocfs2_commit_trans(osb, handle);
handle = NULL;
@@ -877,6 +894,9 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
struct ocfs2_super *osb = OCFS2_SB(sb);
struct buffer_head *bh = NULL;
handle_t *handle = NULL;
int locked[MAXQUOTAS] = {0, 0};
int credits, qtype;
struct ocfs2_mem_dqinfo *oinfo;
mlog_entry("(0x%p, '%.*s')\n", dentry,
dentry->d_name.len, dentry->d_name.name);
@@ -947,11 +967,47 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
}
}
handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
mlog_errno(status);
goto bail_unlock;
if ((attr->ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
(attr->ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
credits = OCFS2_INODE_UPDATE_CREDITS;
if (attr->ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid
&& OCFS2_HAS_RO_COMPAT_FEATURE(sb,
OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) {
oinfo = sb_dqinfo(sb, USRQUOTA)->dqi_priv;
status = ocfs2_lock_global_qf(oinfo, 1);
if (status < 0)
goto bail_unlock;
credits += ocfs2_calc_qinit_credits(sb, USRQUOTA) +
ocfs2_calc_qdel_credits(sb, USRQUOTA);
locked[USRQUOTA] = 1;
}
if (attr->ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid
&& OCFS2_HAS_RO_COMPAT_FEATURE(sb,
OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) {
oinfo = sb_dqinfo(sb, GRPQUOTA)->dqi_priv;
status = ocfs2_lock_global_qf(oinfo, 1);
if (status < 0)
goto bail_unlock;
credits += ocfs2_calc_qinit_credits(sb, GRPQUOTA) +
ocfs2_calc_qdel_credits(sb, GRPQUOTA);
locked[GRPQUOTA] = 1;
}
handle = ocfs2_start_trans(osb, credits);
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
mlog_errno(status);
goto bail_unlock;
}
status = vfs_dq_transfer(inode, attr) ? -EDQUOT : 0;
if (status < 0)
goto bail_commit;
} else {
handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
mlog_errno(status);
goto bail_unlock;
}
}
/*
@@ -974,6 +1030,12 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
bail_commit:
ocfs2_commit_trans(osb, handle);
bail_unlock:
for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
if (!locked[qtype])
continue;
oinfo = sb_dqinfo(sb, qtype)->dqi_priv;
ocfs2_unlock_global_qf(oinfo, 1);
}
ocfs2_inode_unlock(inode, 1);
bail_unlock_rw:
if (size_change)