| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Fri, 19 Dec 2008 13:53:38 -0800
From: Mark Fasheh <mfasheh@...e.com>
To: linux-kernel@...r.kernel.org
Cc: ocfs2-devel@....oracle.com, Joel Becker <joel.becker@...cle.com>,
Tao Ma <tao.ma@...cle.com>, Mark Fasheh <mfasheh@...e.com>
Subject: [PATCH 19/45] ocfs2/xattr: Reserve meta/data at the beginning of ocfs2_xattr_set.
From: Tao Ma <tao.ma@...cle.com>
In ocfs2 xattr set, we reserve metadata and clusters in any place
they are needed. It is time-consuming and ineffective, so this
patch try to reserve metadata and clusters at the beginning of
ocfs2_xattr_set.
Signed-off-by: Tao Ma <tao.ma@...cle.com>
Signed-off-by: Mark Fasheh <mfasheh@...e.com>
---
fs/ocfs2/alloc.h | 4 +
fs/ocfs2/xattr.c | 483 ++++++++++++++++++++++++++++++++++++++++--------------
2 files changed, 361 insertions(+), 126 deletions(-)
diff --git a/fs/ocfs2/alloc.h b/fs/ocfs2/alloc.h
index c301cf2..3eb735e 100644
--- a/fs/ocfs2/alloc.h
+++ b/fs/ocfs2/alloc.h
@@ -176,6 +176,10 @@ static inline void ocfs2_init_dealloc_ctxt(struct ocfs2_cached_dealloc_ctxt *c)
}
int ocfs2_cache_cluster_dealloc(struct ocfs2_cached_dealloc_ctxt *ctxt,
u64 blkno, unsigned int bit);
+static inline int ocfs2_dealloc_has_cluster(struct ocfs2_cached_dealloc_ctxt *c)
+{
+ return c->c_global_allocator != NULL;
+}
int ocfs2_run_deallocs(struct ocfs2_super *osb,
struct ocfs2_cached_dealloc_ctxt *ctxt);
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index f1da381..4fd201a 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -71,6 +71,12 @@ struct ocfs2_xattr_bucket {
int bu_blocks;
};
+struct ocfs2_xattr_set_ctxt {
+ struct ocfs2_alloc_context *meta_ac;
+ struct ocfs2_alloc_context *data_ac;
+ struct ocfs2_cached_dealloc_ctxt dealloc;
+};
+
#define OCFS2_XATTR_ROOT_SIZE (sizeof(struct ocfs2_xattr_def_value_root))
#define OCFS2_XATTR_INLINE_SIZE 80
@@ -133,11 +139,13 @@ static int ocfs2_xattr_tree_list_index_block(struct inode *inode,
size_t buffer_size);
static int ocfs2_xattr_create_index_block(struct inode *inode,
- struct ocfs2_xattr_search *xs);
+ struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt);
static int ocfs2_xattr_set_entry_index_block(struct inode *inode,
struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs);
+ struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt);
static int ocfs2_delete_xattr_index_block(struct inode *inode,
struct buffer_head *xb_bh);
@@ -334,14 +342,13 @@ static void ocfs2_xattr_hash_entry(struct inode *inode,
static int ocfs2_xattr_extend_allocation(struct inode *inode,
u32 clusters_to_add,
struct buffer_head *xattr_bh,
- struct ocfs2_xattr_value_root *xv)
+ struct ocfs2_xattr_value_root *xv,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
int status = 0;
int restart_func = 0;
int credits = 0;
handle_t *handle = NULL;
- struct ocfs2_alloc_context *data_ac = NULL;
- struct ocfs2_alloc_context *meta_ac = NULL;
enum ocfs2_alloc_restarted why;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
u32 prev_clusters, logical_start = le32_to_cpu(xv->xr_clusters);
@@ -353,13 +360,6 @@ static int ocfs2_xattr_extend_allocation(struct inode *inode,
restart_all:
- status = ocfs2_lock_allocators(inode, &et, clusters_to_add, 0,
- &data_ac, &meta_ac);
- if (status) {
- mlog_errno(status);
- goto leave;
- }
-
credits = ocfs2_calc_extend_credits(osb->sb, et.et_root_el,
clusters_to_add);
handle = ocfs2_start_trans(osb, credits);
@@ -386,8 +386,8 @@ restarted_transaction:
0,
&et,
handle,
- data_ac,
- meta_ac,
+ ctxt->data_ac,
+ ctxt->meta_ac,
&why);
if ((status < 0) && (status != -EAGAIN)) {
if (status != -ENOSPC)
@@ -432,14 +432,6 @@ leave:
ocfs2_commit_trans(osb, handle);
handle = NULL;
}
- if (data_ac) {
- ocfs2_free_alloc_context(data_ac);
- data_ac = NULL;
- }
- if (meta_ac) {
- ocfs2_free_alloc_context(meta_ac);
- meta_ac = NULL;
- }
if ((!status) && restart_func) {
restart_func = 0;
goto restart_all;
@@ -452,23 +444,16 @@ static int __ocfs2_remove_xattr_range(struct inode *inode,
struct buffer_head *root_bh,
struct ocfs2_xattr_value_root *xv,
u32 cpos, u32 phys_cpos, u32 len,
- struct ocfs2_cached_dealloc_ctxt *dealloc)
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
int ret;
u64 phys_blkno = ocfs2_clusters_to_blocks(inode->i_sb, phys_cpos);
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
handle_t *handle;
- struct ocfs2_alloc_context *meta_ac = NULL;
struct ocfs2_extent_tree et;
ocfs2_init_xattr_value_extent_tree(&et, inode, root_bh, xv);
- ret = ocfs2_lock_allocators(inode, &et, 0, 1, NULL, &meta_ac);
- if (ret) {
- mlog_errno(ret);
- return ret;
- }
-
handle = ocfs2_start_trans(osb, OCFS2_REMOVE_EXTENT_CREDITS);
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
@@ -483,8 +468,8 @@ static int __ocfs2_remove_xattr_range(struct inode *inode,
goto out_commit;
}
- ret = ocfs2_remove_extent(inode, &et, cpos, len, handle, meta_ac,
- dealloc);
+ ret = ocfs2_remove_extent(inode, &et, cpos, len, handle, ctxt->meta_ac,
+ &ctxt->dealloc);
if (ret) {
mlog_errno(ret);
goto out_commit;
@@ -498,17 +483,13 @@ static int __ocfs2_remove_xattr_range(struct inode *inode,
goto out_commit;
}
- ret = ocfs2_cache_cluster_dealloc(dealloc, phys_blkno, len);
+ ret = ocfs2_cache_cluster_dealloc(&ctxt->dealloc, phys_blkno, len);
if (ret)
mlog_errno(ret);
out_commit:
ocfs2_commit_trans(osb, handle);
out:
-
- if (meta_ac)
- ocfs2_free_alloc_context(meta_ac);
-
return ret;
}
@@ -516,15 +497,12 @@ static int ocfs2_xattr_shrink_size(struct inode *inode,
u32 old_clusters,
u32 new_clusters,
struct buffer_head *root_bh,
- struct ocfs2_xattr_value_root *xv)
+ struct ocfs2_xattr_value_root *xv,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
int ret = 0;
u32 trunc_len, cpos, phys_cpos, alloc_size;
u64 block;
- struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- struct ocfs2_cached_dealloc_ctxt dealloc;
-
- ocfs2_init_dealloc_ctxt(&dealloc);
if (old_clusters <= new_clusters)
return 0;
@@ -544,7 +522,7 @@ static int ocfs2_xattr_shrink_size(struct inode *inode,
ret = __ocfs2_remove_xattr_range(inode, root_bh, xv, cpos,
phys_cpos, alloc_size,
- &dealloc);
+ ctxt);
if (ret) {
mlog_errno(ret);
goto out;
@@ -558,16 +536,14 @@ static int ocfs2_xattr_shrink_size(struct inode *inode,
}
out:
- ocfs2_schedule_truncate_log_flush(osb, 1);
- ocfs2_run_deallocs(osb, &dealloc);
-
return ret;
}
static int ocfs2_xattr_value_truncate(struct inode *inode,
struct buffer_head *root_bh,
struct ocfs2_xattr_value_root *xv,
- int len)
+ int len,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
int ret;
u32 new_clusters = ocfs2_clusters_for_bytes(inode->i_sb, len);
@@ -579,11 +555,11 @@ static int ocfs2_xattr_value_truncate(struct inode *inode,
if (new_clusters > old_clusters)
ret = ocfs2_xattr_extend_allocation(inode,
new_clusters - old_clusters,
- root_bh, xv);
+ root_bh, xv, ctxt);
else
ret = ocfs2_xattr_shrink_size(inode,
old_clusters, new_clusters,
- root_bh, xv);
+ root_bh, xv, ctxt);
return ret;
}
@@ -1167,6 +1143,7 @@ out:
static int ocfs2_xattr_set_value_outside(struct inode *inode,
struct ocfs2_xattr_info *xi,
struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt,
size_t offs)
{
size_t name_len = strlen(xi->name);
@@ -1186,7 +1163,7 @@ static int ocfs2_xattr_set_value_outside(struct inode *inode,
xv->xr_list.l_next_free_rec = 0;
ret = ocfs2_xattr_value_truncate(inode, xs->xattr_bh, xv,
- xi->value_len);
+ xi->value_len, ctxt);
if (ret < 0) {
mlog_errno(ret);
return ret;
@@ -1317,6 +1294,7 @@ static void ocfs2_xattr_set_entry_local(struct inode *inode,
static int ocfs2_xattr_set_entry(struct inode *inode,
struct ocfs2_xattr_info *xi,
struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt,
int flag)
{
struct ocfs2_xattr_entry *last;
@@ -1387,7 +1365,7 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
if (ocfs2_xattr_is_local(xs->here) && size == size_l) {
/* Replace existing local xattr with tree root */
ret = ocfs2_xattr_set_value_outside(inode, xi, xs,
- offs);
+ ctxt, offs);
if (ret < 0)
mlog_errno(ret);
goto out;
@@ -1406,7 +1384,8 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
ret = ocfs2_xattr_value_truncate(inode,
xs->xattr_bh,
xv,
- xi->value_len);
+ xi->value_len,
+ ctxt);
if (ret < 0) {
mlog_errno(ret);
goto out;
@@ -1436,7 +1415,8 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
ret = ocfs2_xattr_value_truncate(inode,
xs->xattr_bh,
xv,
- 0);
+ 0,
+ ctxt);
if (ret < 0)
mlog_errno(ret);
}
@@ -1531,7 +1511,7 @@ out_commit:
* This is the second step for value size > INLINE_SIZE.
*/
size_t offs = le16_to_cpu(xs->here->xe_name_offset);
- ret = ocfs2_xattr_set_value_outside(inode, xi, xs, offs);
+ ret = ocfs2_xattr_set_value_outside(inode, xi, xs, ctxt, offs);
if (ret < 0) {
int ret2;
@@ -1555,6 +1535,10 @@ static int ocfs2_remove_value_outside(struct inode*inode,
struct ocfs2_xattr_header *header)
{
int ret = 0, i;
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ struct ocfs2_xattr_set_ctxt ctxt = { NULL, NULL, };
+
+ ocfs2_init_dealloc_ctxt(&ctxt.dealloc);
for (i = 0; i < le16_to_cpu(header->xh_count); i++) {
struct ocfs2_xattr_entry *entry = &header->xh_entries[i];
@@ -1567,14 +1551,17 @@ static int ocfs2_remove_value_outside(struct inode*inode,
le16_to_cpu(entry->xe_name_offset);
xv = (struct ocfs2_xattr_value_root *)
(val + OCFS2_XATTR_SIZE(entry->xe_name_len));
- ret = ocfs2_xattr_value_truncate(inode, bh, xv, 0);
+ ret = ocfs2_xattr_value_truncate(inode, bh, xv,
+ 0, &ctxt);
if (ret < 0) {
mlog_errno(ret);
- return ret;
+ break;
}
}
}
+ ocfs2_schedule_truncate_log_flush(osb, 1);
+ ocfs2_run_deallocs(osb, &ctxt.dealloc);
return ret;
}
@@ -1836,7 +1823,8 @@ static int ocfs2_xattr_ibody_find(struct inode *inode,
*/
static int ocfs2_xattr_ibody_set(struct inode *inode,
struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs)
+ struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
struct ocfs2_inode_info *oi = OCFS2_I(inode);
struct ocfs2_dinode *di = (struct ocfs2_dinode *)xs->inode_bh->b_data;
@@ -1853,7 +1841,7 @@ static int ocfs2_xattr_ibody_set(struct inode *inode,
}
}
- ret = ocfs2_xattr_set_entry(inode, xi, xs,
+ ret = ocfs2_xattr_set_entry(inode, xi, xs, ctxt,
(OCFS2_INLINE_XATTR_FL | OCFS2_HAS_XATTR_FL));
out:
up_write(&oi->ip_alloc_sem);
@@ -1926,12 +1914,12 @@ cleanup:
*/
static int ocfs2_xattr_block_set(struct inode *inode,
struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs)
+ struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
struct buffer_head *new_bh = NULL;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_dinode *di = (struct ocfs2_dinode *)xs->inode_bh->b_data;
- struct ocfs2_alloc_context *meta_ac = NULL;
handle_t *handle = NULL;
struct ocfs2_xattr_block *xblk = NULL;
u16 suballoc_bit_start;
@@ -1940,15 +1928,6 @@ static int ocfs2_xattr_block_set(struct inode *inode,
int ret;
if (!xs->xattr_bh) {
- /*
- * Alloc one external block for extended attribute
- * outside of inode.
- */
- ret = ocfs2_reserve_new_metadata_blocks(osb, 1, &meta_ac);
- if (ret < 0) {
- mlog_errno(ret);
- goto out;
- }
handle = ocfs2_start_trans(osb,
OCFS2_XATTR_BLOCK_CREATE_CREDITS);
if (IS_ERR(handle)) {
@@ -1963,7 +1942,7 @@ static int ocfs2_xattr_block_set(struct inode *inode,
goto out_commit;
}
- ret = ocfs2_claim_metadata(osb, handle, meta_ac, 1,
+ ret = ocfs2_claim_metadata(osb, handle, ctxt->meta_ac, 1,
&suballoc_bit_start, &num_got,
&first_blkno);
if (ret < 0) {
@@ -1996,7 +1975,6 @@ static int ocfs2_xattr_block_set(struct inode *inode,
xs->end = (void *)xblk + inode->i_sb->s_blocksize;
xs->here = xs->header->xh_entries;
-
ret = ocfs2_journal_dirty(handle, new_bh);
if (ret < 0) {
mlog_errno(ret);
@@ -2009,8 +1987,6 @@ static int ocfs2_xattr_block_set(struct inode *inode,
out_commit:
ocfs2_commit_trans(osb, handle);
out:
- if (meta_ac)
- ocfs2_free_alloc_context(meta_ac);
if (ret < 0)
return ret;
} else
@@ -2018,22 +1994,266 @@ out:
if (!(le16_to_cpu(xblk->xb_flags) & OCFS2_XATTR_INDEXED)) {
/* Set extended attribute into external block */
- ret = ocfs2_xattr_set_entry(inode, xi, xs, OCFS2_HAS_XATTR_FL);
+ ret = ocfs2_xattr_set_entry(inode, xi, xs, ctxt,
+ OCFS2_HAS_XATTR_FL);
if (!ret || ret != -ENOSPC)
goto end;
- ret = ocfs2_xattr_create_index_block(inode, xs);
+ ret = ocfs2_xattr_create_index_block(inode, xs, ctxt);
if (ret)
goto end;
}
- ret = ocfs2_xattr_set_entry_index_block(inode, xi, xs);
+ ret = ocfs2_xattr_set_entry_index_block(inode, xi, xs, ctxt);
end:
return ret;
}
+/* Check whether the new xattr can be inserted into the inode. */
+static int ocfs2_xattr_can_be_in_inode(struct inode *inode,
+ struct ocfs2_xattr_info *xi,
+ struct ocfs2_xattr_search *xs)
+{
+ u64 value_size;
+ struct ocfs2_xattr_entry *last;
+ int free, i;
+ size_t min_offs = xs->end - xs->base;
+
+ if (!xs->header)
+ return 0;
+
+ last = xs->header->xh_entries;
+
+ for (i = 0; i < le16_to_cpu(xs->header->xh_count); i++) {
+ size_t offs = le16_to_cpu(last->xe_name_offset);
+ if (offs < min_offs)
+ min_offs = offs;
+ last += 1;
+ }
+
+ free = min_offs - ((void *)last - xs->base) - sizeof(__u32);
+ if (free < 0)
+ return 0;
+
+ BUG_ON(!xs->not_found);
+
+ if (xi->value_len > OCFS2_XATTR_INLINE_SIZE)
+ value_size = OCFS2_XATTR_ROOT_SIZE;
+ else
+ value_size = OCFS2_XATTR_SIZE(xi->value_len);
+
+ if (free >= sizeof(struct ocfs2_xattr_entry) +
+ OCFS2_XATTR_SIZE(strlen(xi->name)) + value_size)
+ return 1;
+
+ return 0;
+}
+
+static int ocfs2_calc_xattr_set_need(struct inode *inode,
+ struct ocfs2_dinode *di,
+ struct ocfs2_xattr_info *xi,
+ struct ocfs2_xattr_search *xis,
+ struct ocfs2_xattr_search *xbs,
+ int *clusters_need,
+ int *meta_need)
+{
+ int ret = 0, old_in_xb = 0;
+ int clusters_add = 0, meta_add = 0;
+ struct buffer_head *bh = NULL;
+ struct ocfs2_xattr_block *xb = NULL;
+ struct ocfs2_xattr_entry *xe = NULL;
+ struct ocfs2_xattr_value_root *xv = NULL;
+ char *base = NULL;
+ int name_offset, name_len = 0;
+ u32 new_clusters = ocfs2_clusters_for_bytes(inode->i_sb,
+ xi->value_len);
+ u64 value_size;
+
+ /*
+ * delete a xattr doesn't need metadata and cluster allocation.
+ * so return.
+ */
+ if (!xi->value)
+ goto out;
+
+ if (xis->not_found && xbs->not_found) {
+ if (xi->value_len > OCFS2_XATTR_INLINE_SIZE)
+ clusters_add += new_clusters;
+
+ goto meta_guess;
+ }
+
+ if (!xis->not_found) {
+ xe = xis->here;
+ name_offset = le16_to_cpu(xe->xe_name_offset);
+ name_len = OCFS2_XATTR_SIZE(xe->xe_name_len);
+ base = xis->base;
+ } else {
+ int i, block_off;
+ xb = (struct ocfs2_xattr_block *)xbs->xattr_bh->b_data;
+ xe = xbs->here;
+ name_offset = le16_to_cpu(xe->xe_name_offset);
+ name_len = OCFS2_XATTR_SIZE(xe->xe_name_len);
+ i = xbs->here - xbs->header->xh_entries;
+ old_in_xb = 1;
+
+ if (le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED) {
+ ret = ocfs2_xattr_bucket_get_name_value(inode,
+ bucket_xh(xbs->bucket),
+ i, &block_off,
+ &name_offset);
+ base = bucket_block(xbs->bucket, block_off);
+ } else
+ base = xbs->base;
+ }
+
+ /* do cluster allocation guess first. */
+ value_size = le64_to_cpu(xe->xe_value_size);
+
+ if (old_in_xb) {
+ /*
+ * In xattr set, we always try to set the xe in inode first,
+ * so if it can be inserted into inode successfully, the old
+ * one will be removed from the xattr block, and this xattr
+ * will be inserted into inode as a new xattr in inode.
+ */
+ if (ocfs2_xattr_can_be_in_inode(inode, xi, xis)) {
+ clusters_add += new_clusters;
+ goto out;
+ }
+ }
+
+ if (xi->value_len > OCFS2_XATTR_INLINE_SIZE) {
+ /* the new values will be stored outside. */
+ u32 old_clusters = 0;
+
+ if (!ocfs2_xattr_is_local(xe)) {
+ old_clusters = ocfs2_clusters_for_bytes(inode->i_sb,
+ value_size);
+ xv = (struct ocfs2_xattr_value_root *)
+ (base + name_offset + name_len);
+ } else
+ xv = &def_xv.xv;
+
+ if (old_clusters >= new_clusters)
+ goto out;
+ else {
+ meta_add += ocfs2_extend_meta_needed(&xv->xr_list);
+ clusters_add += new_clusters - old_clusters;
+ goto out;
+ }
+ } else {
+ /*
+ * Now the new value will be stored inside. So if the new
+ * value is smaller than the size of value root or the old
+ * value, we don't need any allocation, otherwise we have
+ * to guess metadata allocation.
+ */
+ if ((ocfs2_xattr_is_local(xe) && value_size >= xi->value_len) ||
+ (!ocfs2_xattr_is_local(xe) &&
+ OCFS2_XATTR_ROOT_SIZE >= xi->value_len))
+ goto out;
+ }
+
+meta_guess:
+ /* calculate metadata allocation. */
+ if (di->i_xattr_loc) {
+ if (!xbs->xattr_bh) {
+ ret = ocfs2_read_block(inode,
+ le64_to_cpu(di->i_xattr_loc),
+ &bh);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
+ xb = (struct ocfs2_xattr_block *)bh->b_data;
+ } else
+ xb = (struct ocfs2_xattr_block *)xbs->xattr_bh->b_data;
+
+ if (le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED) {
+ struct ocfs2_extent_list *el =
+ &xb->xb_attrs.xb_root.xt_list;
+ meta_add += ocfs2_extend_meta_needed(el);
+ }
+
+ /*
+ * This cluster will be used either for new bucket or for
+ * new xattr block.
+ * If the cluster size is the same as the bucket size, one
+ * more is needed since we may need to extend the bucket
+ * also.
+ */
+ clusters_add += 1;
+ if (OCFS2_XATTR_BUCKET_SIZE ==
+ OCFS2_SB(inode->i_sb)->s_clustersize)
+ clusters_add += 1;
+ } else
+ meta_add += 1;
+out:
+ if (clusters_need)
+ *clusters_need = clusters_add;
+ if (meta_need)
+ *meta_need = meta_add;
+ brelse(bh);
+ return ret;
+}
+
+static int ocfs2_init_xattr_set_ctxt(struct inode *inode,
+ struct ocfs2_dinode *di,
+ struct ocfs2_xattr_info *xi,
+ struct ocfs2_xattr_search *xis,
+ struct ocfs2_xattr_search *xbs,
+ struct ocfs2_xattr_set_ctxt *ctxt)
+{
+ int clusters_add, meta_add, ret;
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+
+ memset(ctxt, 0, sizeof(struct ocfs2_xattr_set_ctxt));
+
+ ocfs2_init_dealloc_ctxt(&ctxt->dealloc);
+
+ ret = ocfs2_calc_xattr_set_need(inode, di, xi, xis, xbs,
+ &clusters_add, &meta_add);
+ if (ret) {
+ mlog_errno(ret);
+ return ret;
+ }
+
+ mlog(0, "Set xattr %s, reserve meta blocks = %d, clusters = %d\n",
+ xi->name, meta_add, clusters_add);
+
+ if (meta_add) {
+ ret = ocfs2_reserve_new_metadata_blocks(osb, meta_add,
+ &ctxt->meta_ac);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+ }
+
+ if (clusters_add) {
+ ret = ocfs2_reserve_clusters(osb, clusters_add, &ctxt->data_ac);
+ if (ret)
+ mlog_errno(ret);
+ }
+out:
+ if (ret) {
+ if (ctxt->meta_ac) {
+ ocfs2_free_alloc_context(ctxt->meta_ac);
+ ctxt->meta_ac = NULL;
+ }
+
+ /*
+ * We cannot have an error and a non null ctxt->data_ac.
+ */
+ }
+
+ return ret;
+}
+
/*
* ocfs2_xattr_set()
*
@@ -2051,6 +2271,8 @@ int ocfs2_xattr_set(struct inode *inode,
struct buffer_head *di_bh = NULL;
struct ocfs2_dinode *di;
int ret;
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ struct ocfs2_xattr_set_ctxt ctxt = { NULL, NULL, };
struct ocfs2_xattr_info xi = {
.name_index = name_index,
@@ -2115,15 +2337,21 @@ int ocfs2_xattr_set(struct inode *inode,
goto cleanup;
}
+ ret = ocfs2_init_xattr_set_ctxt(inode, di, &xi, &xis, &xbs, &ctxt);
+ if (ret) {
+ mlog_errno(ret);
+ goto cleanup;
+ }
+
if (!value) {
/* Remove existing extended attribute */
if (!xis.not_found)
- ret = ocfs2_xattr_ibody_set(inode, &xi, &xis);
+ ret = ocfs2_xattr_ibody_set(inode, &xi, &xis, &ctxt);
else if (!xbs.not_found)
- ret = ocfs2_xattr_block_set(inode, &xi, &xbs);
+ ret = ocfs2_xattr_block_set(inode, &xi, &xbs, &ctxt);
} else {
/* We always try to set extended attribute into inode first*/
- ret = ocfs2_xattr_ibody_set(inode, &xi, &xis);
+ ret = ocfs2_xattr_ibody_set(inode, &xi, &xis, &ctxt);
if (!ret && !xbs.not_found) {
/*
* If succeed and that extended attribute existing in
@@ -2131,7 +2359,7 @@ int ocfs2_xattr_set(struct inode *inode,
*/
xi.value = NULL;
xi.value_len = 0;
- ret = ocfs2_xattr_block_set(inode, &xi, &xbs);
+ ret = ocfs2_xattr_block_set(inode, &xi, &xbs, &ctxt);
} else if (ret == -ENOSPC) {
if (di->i_xattr_loc && !xbs.xattr_bh) {
ret = ocfs2_xattr_block_find(inode, name_index,
@@ -2143,9 +2371,9 @@ int ocfs2_xattr_set(struct inode *inode,
* If no space in inode, we will set extended attribute
* into external block.
*/
- ret = ocfs2_xattr_block_set(inode, &xi, &xbs);
+ ret = ocfs2_xattr_block_set(inode, &xi, &xbs, &ctxt);
if (ret)
- goto cleanup;
+ goto free;
if (!xis.not_found) {
/*
* If succeed and that extended attribute
@@ -2153,10 +2381,19 @@ int ocfs2_xattr_set(struct inode *inode,
*/
xi.value = NULL;
xi.value_len = 0;
- ret = ocfs2_xattr_ibody_set(inode, &xi, &xis);
+ ret = ocfs2_xattr_ibody_set(inode, &xi,
+ &xis, &ctxt);
}
}
}
+free:
+ if (ctxt.data_ac)
+ ocfs2_free_alloc_context(ctxt.data_ac);
+ if (ctxt.meta_ac)
+ ocfs2_free_alloc_context(ctxt.meta_ac);
+ if (ocfs2_dealloc_has_cluster(&ctxt.dealloc))
+ ocfs2_schedule_truncate_log_flush(osb, 1);
+ ocfs2_run_deallocs(osb, &ctxt.dealloc);
cleanup:
up_write(&OCFS2_I(inode)->ip_xattr_sem);
ocfs2_inode_unlock(inode, 1);
@@ -2734,7 +2971,8 @@ static void ocfs2_xattr_update_xattr_search(struct inode *inode,
}
static int ocfs2_xattr_create_index_block(struct inode *inode,
- struct ocfs2_xattr_search *xs)
+ struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
int ret, credits = OCFS2_SUBALLOC_ALLOC;
u32 bit_off, len;
@@ -2742,7 +2980,6 @@ static int ocfs2_xattr_create_index_block(struct inode *inode,
handle_t *handle;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_inode_info *oi = OCFS2_I(inode);
- struct ocfs2_alloc_context *data_ac;
struct buffer_head *xb_bh = xs->xattr_bh;
struct ocfs2_xattr_block *xb =
(struct ocfs2_xattr_block *)xb_bh->b_data;
@@ -2755,12 +2992,6 @@ static int ocfs2_xattr_create_index_block(struct inode *inode,
BUG_ON(xb_flags & OCFS2_XATTR_INDEXED);
BUG_ON(!xs->bucket);
- ret = ocfs2_reserve_clusters(osb, 1, &data_ac);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
-
/*
* XXX:
* We can use this lock for now, and maybe move to a dedicated mutex
@@ -2787,7 +3018,8 @@ static int ocfs2_xattr_create_index_block(struct inode *inode,
goto out_commit;
}
- ret = ocfs2_claim_clusters(osb, handle, data_ac, 1, &bit_off, &len);
+ ret = __ocfs2_claim_clusters(osb, handle, ctxt->data_ac,
+ 1, 1, &bit_off, &len);
if (ret) {
mlog_errno(ret);
goto out_commit;
@@ -2850,10 +3082,6 @@ out_commit:
out_sem:
up_write(&oi->ip_alloc_sem);
-out:
- if (data_ac)
- ocfs2_free_alloc_context(data_ac);
-
return ret;
}
@@ -3614,7 +3842,8 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
u32 *num_clusters,
u32 prev_cpos,
u64 prev_blkno,
- int *extend)
+ int *extend,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
int ret, credits;
u16 bpc = ocfs2_clusters_to_blocks(inode->i_sb, 1);
@@ -3622,8 +3851,6 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
u32 clusters_to_add = 1, bit_off, num_bits, v_start = 0;
u64 block;
handle_t *handle = NULL;
- struct ocfs2_alloc_context *data_ac = NULL;
- struct ocfs2_alloc_context *meta_ac = NULL;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_extent_tree et;
@@ -3634,13 +3861,6 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
ocfs2_init_xattr_tree_extent_tree(&et, inode, root_bh);
- ret = ocfs2_lock_allocators(inode, &et, clusters_to_add, 0,
- &data_ac, &meta_ac);
- if (ret) {
- mlog_errno(ret);
- goto leave;
- }
-
credits = ocfs2_calc_extend_credits(osb->sb, et.et_root_el,
clusters_to_add);
handle = ocfs2_start_trans(osb, credits);
@@ -3658,7 +3878,7 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
goto leave;
}
- ret = __ocfs2_claim_clusters(osb, handle, data_ac, 1,
+ ret = __ocfs2_claim_clusters(osb, handle, ctxt->data_ac, 1,
clusters_to_add, &bit_off, &num_bits);
if (ret < 0) {
if (ret != -ENOSPC)
@@ -3719,7 +3939,7 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
mlog(0, "Insert %u clusters at block %llu for xattr at %u\n",
num_bits, (unsigned long long)block, v_start);
ret = ocfs2_insert_extent(osb, handle, inode, &et, v_start, block,
- num_bits, 0, meta_ac);
+ num_bits, 0, ctxt->meta_ac);
if (ret < 0) {
mlog_errno(ret);
goto leave;
@@ -3734,10 +3954,6 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
leave:
if (handle)
ocfs2_commit_trans(osb, handle);
- if (data_ac)
- ocfs2_free_alloc_context(data_ac);
- if (meta_ac)
- ocfs2_free_alloc_context(meta_ac);
return ret;
}
@@ -3821,7 +4037,8 @@ out:
*/
static int ocfs2_add_new_xattr_bucket(struct inode *inode,
struct buffer_head *xb_bh,
- struct buffer_head *header_bh)
+ struct buffer_head *header_bh,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
struct ocfs2_xattr_header *first_xh = NULL;
struct buffer_head *first_bh = NULL;
@@ -3872,7 +4089,8 @@ static int ocfs2_add_new_xattr_bucket(struct inode *inode,
&num_clusters,
e_cpos,
p_blkno,
- &extend);
+ &extend,
+ ctxt);
if (ret) {
mlog_errno(ret);
goto out;
@@ -4147,7 +4365,8 @@ out:
static int ocfs2_xattr_bucket_value_truncate(struct inode *inode,
struct buffer_head *header_bh,
int xe_off,
- int len)
+ int len,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
int ret, offset;
u64 value_blk;
@@ -4182,7 +4401,7 @@ static int ocfs2_xattr_bucket_value_truncate(struct inode *inode,
mlog(0, "truncate %u in xattr bucket %llu to %d bytes.\n",
xe_off, (unsigned long long)header_bh->b_blocknr, len);
- ret = ocfs2_xattr_value_truncate(inode, value_bh, xv, len);
+ ret = ocfs2_xattr_value_truncate(inode, value_bh, xv, len, ctxt);
if (ret) {
mlog_errno(ret);
goto out;
@@ -4200,8 +4419,9 @@ out:
}
static int ocfs2_xattr_bucket_value_truncate_xs(struct inode *inode,
- struct ocfs2_xattr_search *xs,
- int len)
+ struct ocfs2_xattr_search *xs,
+ int len,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
int ret, offset;
struct ocfs2_xattr_entry *xe = xs->here;
@@ -4211,7 +4431,7 @@ static int ocfs2_xattr_bucket_value_truncate_xs(struct inode *inode,
offset = xe - xh->xh_entries;
ret = ocfs2_xattr_bucket_value_truncate(inode, xs->bucket->bu_bhs[0],
- offset, len);
+ offset, len, ctxt);
if (ret)
mlog_errno(ret);
@@ -4375,7 +4595,8 @@ out_commit:
*/
static int ocfs2_xattr_set_in_bucket(struct inode *inode,
struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs)
+ struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
int ret, local = 1;
size_t value_len;
@@ -4403,7 +4624,8 @@ static int ocfs2_xattr_set_in_bucket(struct inode *inode,
value_len = 0;
ret = ocfs2_xattr_bucket_value_truncate_xs(inode, xs,
- value_len);
+ value_len,
+ ctxt);
if (ret)
goto out;
@@ -4434,7 +4656,7 @@ static int ocfs2_xattr_set_in_bucket(struct inode *inode,
/* allocate the space now for the outside block storage. */
ret = ocfs2_xattr_bucket_value_truncate_xs(inode, xs,
- value_len);
+ value_len, ctxt);
if (ret) {
mlog_errno(ret);
@@ -4485,7 +4707,8 @@ static int ocfs2_check_xattr_bucket_collision(struct inode *inode,
static int ocfs2_xattr_set_entry_index_block(struct inode *inode,
struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs)
+ struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
struct ocfs2_xattr_header *xh;
struct ocfs2_xattr_entry *xe;
@@ -4603,7 +4826,8 @@ try_again:
ret = ocfs2_add_new_xattr_bucket(inode,
xs->xattr_bh,
- xs->bucket->bu_bhs[0]);
+ xs->bucket->bu_bhs[0],
+ ctxt);
if (ret) {
mlog_errno(ret);
goto out;
@@ -4622,7 +4846,7 @@ try_again:
}
xattr_set:
- ret = ocfs2_xattr_set_in_bucket(inode, xi, xs);
+ ret = ocfs2_xattr_set_in_bucket(inode, xi, xs, ctxt);
out:
mlog_exit(ret);
return ret;
@@ -4636,6 +4860,10 @@ static int ocfs2_delete_xattr_in_bucket(struct inode *inode,
struct ocfs2_xattr_header *xh = bucket_xh(bucket);
u16 i;
struct ocfs2_xattr_entry *xe;
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ struct ocfs2_xattr_set_ctxt ctxt = {NULL, NULL,};
+
+ ocfs2_init_dealloc_ctxt(&ctxt.dealloc);
for (i = 0; i < le16_to_cpu(xh->xh_count); i++) {
xe = &xh->xh_entries[i];
@@ -4644,13 +4872,16 @@ static int ocfs2_delete_xattr_in_bucket(struct inode *inode,
ret = ocfs2_xattr_bucket_value_truncate(inode,
bucket->bu_bhs[0],
- i, 0);
+ i, 0, &ctxt);
if (ret) {
mlog_errno(ret);
break;
}
}
+ ocfs2_schedule_truncate_log_flush(osb, 1);
+ ocfs2_run_deallocs(osb, &ctxt.dealloc);
+
return ret;
}
--
1.5.6
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists