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Diffstat (limited to 'fs/ocfs2/refcounttree.c')
-rw-r--r--fs/ocfs2/refcounttree.c484
1 files changed, 252 insertions, 232 deletions
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 74db2be75dd..636aab69ead 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -16,7 +16,6 @@
*/
#include <linux/sort.h>
-#define MLOG_MASK_PREFIX ML_REFCOUNT
#include <cluster/masklog.h>
#include "ocfs2.h"
#include "inode.h"
@@ -34,10 +33,10 @@
#include "aops.h"
#include "xattr.h"
#include "namei.h"
+#include "ocfs2_trace.h"
#include <linux/bio.h>
#include <linux/blkdev.h>
-#include <linux/gfp.h>
#include <linux/slab.h>
#include <linux/writeback.h>
#include <linux/pagevec.h>
@@ -47,6 +46,7 @@
#include <linux/quotaops.h>
#include <linux/namei.h>
#include <linux/mount.h>
+#include <linux/posix_acl.h>
struct ocfs2_cow_context {
struct inode *inode;
@@ -66,7 +66,7 @@ struct ocfs2_cow_context {
u32 *num_clusters,
unsigned int *extent_flags);
int (*cow_duplicate_clusters)(handle_t *handle,
- struct ocfs2_cow_context *context,
+ struct inode *inode,
u32 cpos, u32 old_cluster,
u32 new_cluster, u32 new_len);
};
@@ -84,8 +84,7 @@ static int ocfs2_validate_refcount_block(struct super_block *sb,
struct ocfs2_refcount_block *rb =
(struct ocfs2_refcount_block *)bh->b_data;
- mlog(0, "Validating refcount block %llu\n",
- (unsigned long long)bh->b_blocknr);
+ trace_ocfs2_validate_refcount_block((unsigned long long)bh->b_blocknr);
BUG_ON(!buffer_uptodate(bh));
@@ -545,8 +544,8 @@ void ocfs2_purge_refcount_trees(struct ocfs2_super *osb)
while ((node = rb_last(root)) != NULL) {
tree = rb_entry(node, struct ocfs2_refcount_tree, rf_node);
- mlog(0, "Purge tree %llu\n",
- (unsigned long long) tree->rf_blkno);
+ trace_ocfs2_purge_refcount_trees(
+ (unsigned long long) tree->rf_blkno);
rb_erase(&tree->rf_node, root);
ocfs2_free_refcount_tree(tree);
@@ -571,11 +570,12 @@ static int ocfs2_create_refcount_tree(struct inode *inode,
struct ocfs2_refcount_tree *new_tree = NULL, *tree = NULL;
u16 suballoc_bit_start;
u32 num_got;
- u64 first_blkno;
+ u64 suballoc_loc, first_blkno;
BUG_ON(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL);
- mlog(0, "create tree for inode %lu\n", inode->i_ino);
+ trace_ocfs2_create_refcount_tree(
+ (unsigned long long)OCFS2_I(inode)->ip_blkno);
ret = ocfs2_reserve_new_metadata_blocks(osb, 1, &meta_ac);
if (ret) {
@@ -597,7 +597,7 @@ static int ocfs2_create_refcount_tree(struct inode *inode,
goto out_commit;
}
- ret = ocfs2_claim_metadata(osb, handle, meta_ac, 1,
+ ret = ocfs2_claim_metadata(handle, meta_ac, 1, &suballoc_loc,
&suballoc_bit_start, &num_got,
&first_blkno);
if (ret) {
@@ -613,6 +613,11 @@ static int ocfs2_create_refcount_tree(struct inode *inode,
}
new_bh = sb_getblk(inode->i_sb, first_blkno);
+ if (!new_bh) {
+ ret = -ENOMEM;
+ mlog_errno(ret);
+ goto out_commit;
+ }
ocfs2_set_new_buffer_uptodate(&new_tree->rf_ci, new_bh);
ret = ocfs2_journal_access_rb(handle, &new_tree->rf_ci, new_bh,
@@ -626,7 +631,8 @@ static int ocfs2_create_refcount_tree(struct inode *inode,
rb = (struct ocfs2_refcount_block *)new_bh->b_data;
memset(rb, 0, inode->i_sb->s_blocksize);
strcpy((void *)rb, OCFS2_REFCOUNT_BLOCK_SIGNATURE);
- rb->rf_suballoc_slot = cpu_to_le16(osb->slot_num);
+ rb->rf_suballoc_slot = cpu_to_le16(meta_ac->ac_alloc_slot);
+ rb->rf_suballoc_loc = cpu_to_le64(suballoc_loc);
rb->rf_suballoc_bit = cpu_to_le16(suballoc_bit_start);
rb->rf_fs_generation = cpu_to_le32(osb->fs_generation);
rb->rf_blkno = cpu_to_le64(first_blkno);
@@ -645,8 +651,7 @@ static int ocfs2_create_refcount_tree(struct inode *inode,
di->i_refcount_loc = cpu_to_le64(first_blkno);
spin_unlock(&oi->ip_lock);
- mlog(0, "created tree for inode %lu, refblock %llu\n",
- inode->i_ino, (unsigned long long)first_blkno);
+ trace_ocfs2_create_refcount_tree_blkno((unsigned long long)first_blkno);
ocfs2_journal_dirty(handle, di_bh);
@@ -791,7 +796,10 @@ int ocfs2_remove_refcount_tree(struct inode *inode, struct buffer_head *di_bh)
if (le32_to_cpu(rb->rf_count) == 1) {
blk = le64_to_cpu(rb->rf_blkno);
bit = le16_to_cpu(rb->rf_suballoc_bit);
- bg_blkno = ocfs2_which_suballoc_group(blk, bit);
+ if (rb->rf_suballoc_loc)
+ bg_blkno = le64_to_cpu(rb->rf_suballoc_loc);
+ else
+ bg_blkno = ocfs2_which_suballoc_group(blk, bit);
alloc_inode = ocfs2_get_system_file_inode(osb,
EXTENT_ALLOC_SYSTEM_INODE,
@@ -1033,14 +1041,14 @@ static int ocfs2_get_refcount_cpos_end(struct ocfs2_caching_info *ci,
tmp_el = left_path->p_node[subtree_root].el;
blkno = left_path->p_node[subtree_root+1].bh->b_blocknr;
- for (i = 0; i < le32_to_cpu(tmp_el->l_next_free_rec); i++) {
+ for (i = 0; i < le16_to_cpu(tmp_el->l_next_free_rec); i++) {
if (le64_to_cpu(tmp_el->l_recs[i].e_blkno) == blkno) {
*cpos_end = le32_to_cpu(tmp_el->l_recs[i+1].e_cpos);
break;
}
}
- BUG_ON(i == le32_to_cpu(tmp_el->l_next_free_rec));
+ BUG_ON(i == le16_to_cpu(tmp_el->l_next_free_rec));
out:
ocfs2_free_path(left_path);
@@ -1252,8 +1260,9 @@ static int ocfs2_change_refcount_rec(handle_t *handle,
goto out;
}
- mlog(0, "change index %d, old count %u, change %d\n", index,
- le32_to_cpu(rec->r_refcount), change);
+ trace_ocfs2_change_refcount_rec(
+ (unsigned long long)ocfs2_metadata_cache_owner(ci),
+ index, le32_to_cpu(rec->r_refcount), change);
le32_add_cpu(&rec->r_refcount, change);
if (!rec->r_refcount) {
@@ -1269,9 +1278,7 @@ static int ocfs2_change_refcount_rec(handle_t *handle,
} else if (merge)
ocfs2_refcount_rec_merge(rb, index);
- ret = ocfs2_journal_dirty(handle, ref_leaf_bh);
- if (ret)
- mlog_errno(ret);
+ ocfs2_journal_dirty(handle, ref_leaf_bh);
out:
return ret;
}
@@ -1285,7 +1292,7 @@ static int ocfs2_expand_inline_ref_root(handle_t *handle,
int ret;
u16 suballoc_bit_start;
u32 num_got;
- u64 blkno;
+ u64 suballoc_loc, blkno;
struct super_block *sb = ocfs2_metadata_cache_get_super(ci);
struct buffer_head *new_bh = NULL;
struct ocfs2_refcount_block *new_rb;
@@ -1299,7 +1306,7 @@ static int ocfs2_expand_inline_ref_root(handle_t *handle,
goto out;
}
- ret = ocfs2_claim_metadata(OCFS2_SB(sb), handle, meta_ac, 1,
+ ret = ocfs2_claim_metadata(handle, meta_ac, 1, &suballoc_loc,
&suballoc_bit_start, &num_got,
&blkno);
if (ret) {
@@ -1309,7 +1316,7 @@ static int ocfs2_expand_inline_ref_root(handle_t *handle,
new_bh = sb_getblk(sb, blkno);
if (new_bh == NULL) {
- ret = -EIO;
+ ret = -ENOMEM;
mlog_errno(ret);
goto out;
}
@@ -1330,7 +1337,8 @@ static int ocfs2_expand_inline_ref_root(handle_t *handle,
memcpy(new_bh->b_data, ref_root_bh->b_data, sb->s_blocksize);
new_rb = (struct ocfs2_refcount_block *)new_bh->b_data;
- new_rb->rf_suballoc_slot = cpu_to_le16(OCFS2_SB(sb)->slot_num);
+ new_rb->rf_suballoc_slot = cpu_to_le16(meta_ac->ac_alloc_slot);
+ new_rb->rf_suballoc_loc = cpu_to_le64(suballoc_loc);
new_rb->rf_suballoc_bit = cpu_to_le16(suballoc_bit_start);
new_rb->rf_blkno = cpu_to_le64(blkno);
new_rb->rf_cpos = cpu_to_le32(0);
@@ -1350,8 +1358,8 @@ static int ocfs2_expand_inline_ref_root(handle_t *handle,
ocfs2_journal_dirty(handle, ref_root_bh);
- mlog(0, "new leaf block %llu, used %u\n", (unsigned long long)blkno,
- le16_to_cpu(new_rb->rf_records.rl_used));
+ trace_ocfs2_expand_inline_ref_root((unsigned long long)blkno,
+ le16_to_cpu(new_rb->rf_records.rl_used));
*ref_leaf_bh = new_bh;
new_bh = NULL;
@@ -1400,10 +1408,9 @@ static void swap_refcount_rec(void *a, void *b, int size)
{
struct ocfs2_refcount_rec *l = a, *r = b, tmp;
- tmp = *(struct ocfs2_refcount_rec *)l;
- *(struct ocfs2_refcount_rec *)l =
- *(struct ocfs2_refcount_rec *)r;
- *(struct ocfs2_refcount_rec *)r = tmp;
+ tmp = *l;
+ *l = *r;
+ *r = tmp;
}
/*
@@ -1463,9 +1470,9 @@ static int ocfs2_divide_leaf_refcount_block(struct buffer_head *ref_leaf_bh,
(struct ocfs2_refcount_block *)new_bh->b_data;
struct ocfs2_refcount_list *new_rl = &new_rb->rf_records;
- mlog(0, "split old leaf refcount block %llu, count = %u, used = %u\n",
- (unsigned long long)ref_leaf_bh->b_blocknr,
- le32_to_cpu(rl->rl_count), le32_to_cpu(rl->rl_used));
+ trace_ocfs2_divide_leaf_refcount_block(
+ (unsigned long long)ref_leaf_bh->b_blocknr,
+ le16_to_cpu(rl->rl_count), le16_to_cpu(rl->rl_used));
/*
* XXX: Improvement later.
@@ -1525,7 +1532,7 @@ static int ocfs2_new_leaf_refcount_block(handle_t *handle,
int ret;
u16 suballoc_bit_start;
u32 num_got, new_cpos;
- u64 blkno;
+ u64 suballoc_loc, blkno;
struct super_block *sb = ocfs2_metadata_cache_get_super(ci);
struct ocfs2_refcount_block *root_rb =
(struct ocfs2_refcount_block *)ref_root_bh->b_data;
@@ -1549,7 +1556,7 @@ static int ocfs2_new_leaf_refcount_block(handle_t *handle,
goto out;
}
- ret = ocfs2_claim_metadata(OCFS2_SB(sb), handle, meta_ac, 1,
+ ret = ocfs2_claim_metadata(handle, meta_ac, 1, &suballoc_loc,
&suballoc_bit_start, &num_got,
&blkno);
if (ret) {
@@ -1559,7 +1566,7 @@ static int ocfs2_new_leaf_refcount_block(handle_t *handle,
new_bh = sb_getblk(sb, blkno);
if (new_bh == NULL) {
- ret = -EIO;
+ ret = -ENOMEM;
mlog_errno(ret);
goto out;
}
@@ -1576,7 +1583,8 @@ static int ocfs2_new_leaf_refcount_block(handle_t *handle,
new_rb = (struct ocfs2_refcount_block *)new_bh->b_data;
memset(new_rb, 0, sb->s_blocksize);
strcpy((void *)new_rb, OCFS2_REFCOUNT_BLOCK_SIGNATURE);
- new_rb->rf_suballoc_slot = cpu_to_le16(OCFS2_SB(sb)->slot_num);
+ new_rb->rf_suballoc_slot = cpu_to_le16(meta_ac->ac_alloc_slot);
+ new_rb->rf_suballoc_loc = cpu_to_le64(suballoc_loc);
new_rb->rf_suballoc_bit = cpu_to_le16(suballoc_bit_start);
new_rb->rf_fs_generation = cpu_to_le32(OCFS2_SB(sb)->fs_generation);
new_rb->rf_blkno = cpu_to_le64(blkno);
@@ -1597,8 +1605,8 @@ static int ocfs2_new_leaf_refcount_block(handle_t *handle,
ocfs2_init_refcount_extent_tree(&ref_et, ci, ref_root_bh);
- mlog(0, "insert new leaf block %llu at %u\n",
- (unsigned long long)new_bh->b_blocknr, new_cpos);
+ trace_ocfs2_new_leaf_refcount_block(
+ (unsigned long long)new_bh->b_blocknr, new_cpos);
/* Insert the new leaf block with the specific offset cpos. */
ret = ocfs2_insert_extent(handle, &ref_et, new_cpos, new_bh->b_blocknr,
@@ -1695,7 +1703,7 @@ static int ocfs2_adjust_refcount_rec(handle_t *handle,
* 2 more credits, one for the leaf refcount block, one for
* the extent block contains the extent rec.
*/
- ret = ocfs2_extend_trans(handle, handle->h_buffer_credits + 2);
+ ret = ocfs2_extend_trans(handle, 2);
if (ret < 0) {
mlog_errno(ret);
goto out;
@@ -1790,11 +1798,10 @@ static int ocfs2_insert_refcount_rec(handle_t *handle,
(le16_to_cpu(rf_list->rl_used) - index) *
sizeof(struct ocfs2_refcount_rec));
- mlog(0, "insert refcount record start %llu, len %u, count %u "
- "to leaf block %llu at index %d\n",
- (unsigned long long)le64_to_cpu(rec->r_cpos),
- le32_to_cpu(rec->r_clusters), le32_to_cpu(rec->r_refcount),
- (unsigned long long)ref_leaf_bh->b_blocknr, index);
+ trace_ocfs2_insert_refcount_rec(
+ (unsigned long long)ref_leaf_bh->b_blocknr, index,
+ (unsigned long long)le64_to_cpu(rec->r_cpos),
+ le32_to_cpu(rec->r_clusters), le32_to_cpu(rec->r_refcount));
rf_list->rl_recs[index] = *rec;
@@ -1803,11 +1810,7 @@ static int ocfs2_insert_refcount_rec(handle_t *handle,
if (merge)
ocfs2_refcount_rec_merge(rb, index);
- ret = ocfs2_journal_dirty(handle, ref_leaf_bh);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
+ ocfs2_journal_dirty(handle, ref_leaf_bh);
if (index == 0) {
ret = ocfs2_adjust_refcount_rec(handle, ci,
@@ -1850,10 +1853,12 @@ static int ocfs2_split_refcount_rec(handle_t *handle,
BUG_ON(le32_to_cpu(rb->rf_flags) & OCFS2_REFCOUNT_TREE_FL);
- mlog(0, "original r_pos %llu, cluster %u, split %llu, cluster %u\n",
- le64_to_cpu(orig_rec->r_cpos), le32_to_cpu(orig_rec->r_clusters),
- le64_to_cpu(split_rec->r_cpos),
- le32_to_cpu(split_rec->r_clusters));
+ trace_ocfs2_split_refcount_rec(le64_to_cpu(orig_rec->r_cpos),
+ le32_to_cpu(orig_rec->r_clusters),
+ le32_to_cpu(orig_rec->r_refcount),
+ le64_to_cpu(split_rec->r_cpos),
+ le32_to_cpu(split_rec->r_clusters),
+ le32_to_cpu(split_rec->r_refcount));
/*
* If we just need to split the header or tail clusters,
@@ -1967,20 +1972,17 @@ static int ocfs2_split_refcount_rec(handle_t *handle,
if (split_rec->r_refcount) {
rf_list->rl_recs[index] = *split_rec;
- mlog(0, "insert refcount record start %llu, len %u, count %u "
- "to leaf block %llu at index %d\n",
- (unsigned long long)le64_to_cpu(split_rec->r_cpos),
- le32_to_cpu(split_rec->r_clusters),
- le32_to_cpu(split_rec->r_refcount),
- (unsigned long long)ref_leaf_bh->b_blocknr, index);
+ trace_ocfs2_split_refcount_rec_insert(
+ (unsigned long long)ref_leaf_bh->b_blocknr, index,
+ (unsigned long long)le64_to_cpu(split_rec->r_cpos),
+ le32_to_cpu(split_rec->r_clusters),
+ le32_to_cpu(split_rec->r_refcount));
if (merge)
ocfs2_refcount_rec_merge(rb, index);
}
- ret = ocfs2_journal_dirty(handle, ref_leaf_bh);
- if (ret)
- mlog_errno(ret);
+ ocfs2_journal_dirty(handle, ref_leaf_bh);
out:
brelse(new_bh);
@@ -1999,7 +2001,7 @@ static int __ocfs2_increase_refcount(handle_t *handle,
struct ocfs2_refcount_rec rec;
unsigned int set_len = 0;
- mlog(0, "Tree owner %llu, add refcount start %llu, len %u\n",
+ trace_ocfs2_increase_refcount_begin(
(unsigned long long)ocfs2_metadata_cache_owner(ci),
(unsigned long long)cpos, len);
@@ -2026,9 +2028,9 @@ static int __ocfs2_increase_refcount(handle_t *handle,
*/
if (rec.r_refcount && le64_to_cpu(rec.r_cpos) == cpos &&
set_len <= len) {
- mlog(0, "increase refcount rec, start %llu, len %u, "
- "count %u\n", (unsigned long long)cpos, set_len,
- le32_to_cpu(rec.r_refcount));
+ trace_ocfs2_increase_refcount_change(
+ (unsigned long long)cpos, set_len,
+ le32_to_cpu(rec.r_refcount));
ret = ocfs2_change_refcount_rec(handle, ci,
ref_leaf_bh, index,
merge, 1);
@@ -2039,7 +2041,7 @@ static int __ocfs2_increase_refcount(handle_t *handle,
} else if (!rec.r_refcount) {
rec.r_refcount = cpu_to_le32(1);
- mlog(0, "insert refcount rec, start %llu, len %u\n",
+ trace_ocfs2_increase_refcount_insert(
(unsigned long long)le64_to_cpu(rec.r_cpos),
set_len);
ret = ocfs2_insert_refcount_rec(handle, ci, ref_root_bh,
@@ -2057,8 +2059,7 @@ static int __ocfs2_increase_refcount(handle_t *handle,
rec.r_clusters = cpu_to_le32(set_len);
le32_add_cpu(&rec.r_refcount, 1);
- mlog(0, "split refcount rec, start %llu, "
- "len %u, count %u\n",
+ trace_ocfs2_increase_refcount_split(
(unsigned long long)le64_to_cpu(rec.r_cpos),
set_len, le32_to_cpu(rec.r_refcount));
ret = ocfs2_split_refcount_rec(handle, ci,
@@ -2097,6 +2098,11 @@ static int ocfs2_remove_refcount_extent(handle_t *handle,
BUG_ON(rb->rf_records.rl_used);
+ trace_ocfs2_remove_refcount_extent(
+ (unsigned long long)ocfs2_metadata_cache_owner(ci),
+ (unsigned long long)ref_leaf_bh->b_blocknr,
+ le32_to_cpu(rb->rf_cpos));
+
ocfs2_init_refcount_extent_tree(&et, ci, ref_root_bh);
ret = ocfs2_remove_extent(handle, &et, le32_to_cpu(rb->rf_cpos),
1, meta_ac, dealloc);
@@ -2113,6 +2119,7 @@ static int ocfs2_remove_refcount_extent(handle_t *handle,
*/
ret = ocfs2_cache_block_dealloc(dealloc, EXTENT_ALLOC_SYSTEM_INODE,
le16_to_cpu(rb->rf_suballoc_slot),
+ le64_to_cpu(rb->rf_suballoc_loc),
le64_to_cpu(rb->rf_blkno),
le16_to_cpu(rb->rf_suballoc_bit));
if (ret) {
@@ -2138,7 +2145,7 @@ static int ocfs2_remove_refcount_extent(handle_t *handle,
if (!rb->rf_list.l_next_free_rec) {
BUG_ON(rb->rf_clusters);
- mlog(0, "reset refcount tree root %llu to be a record block.\n",
+ trace_ocfs2_restore_refcount_block(
(unsigned long long)ref_root_bh->b_blocknr);
rb->rf_flags = 0;
@@ -2185,6 +2192,10 @@ static int ocfs2_decrease_refcount_rec(handle_t *handle,
BUG_ON(cpos + len >
le64_to_cpu(rec->r_cpos) + le32_to_cpu(rec->r_clusters));
+ trace_ocfs2_decrease_refcount_rec(
+ (unsigned long long)ocfs2_metadata_cache_owner(ci),
+ (unsigned long long)cpos, len);
+
if (cpos == le64_to_cpu(rec->r_cpos) &&
len == le32_to_cpu(rec->r_clusters))
ret = ocfs2_change_refcount_rec(handle, ci,
@@ -2196,12 +2207,6 @@ static int ocfs2_decrease_refcount_rec(handle_t *handle,
le32_add_cpu(&split.r_refcount, -1);
- mlog(0, "split refcount rec, start %llu, "
- "len %u, count %u, original start %llu, len %u\n",
- (unsigned long long)le64_to_cpu(split.r_cpos),
- len, le32_to_cpu(split.r_refcount),
- (unsigned long long)le64_to_cpu(rec->r_cpos),
- le32_to_cpu(rec->r_clusters));
ret = ocfs2_split_refcount_rec(handle, ci,
ref_root_bh, ref_leaf_bh,
&split, index, 1,
@@ -2240,10 +2245,9 @@ static int __ocfs2_decrease_refcount(handle_t *handle,
struct super_block *sb = ocfs2_metadata_cache_get_super(ci);
struct buffer_head *ref_leaf_bh = NULL;
- mlog(0, "Tree owner %llu, decrease refcount start %llu, "
- "len %u, delete %u\n",
- (unsigned long long)ocfs2_metadata_cache_owner(ci),
- (unsigned long long)cpos, len, delete);
+ trace_ocfs2_decrease_refcount(
+ (unsigned long long)ocfs2_metadata_cache_owner(ci),
+ (unsigned long long)cpos, len, delete);
while (len) {
ret = ocfs2_get_refcount_rec(ci, ref_root_bh,
@@ -2353,8 +2357,8 @@ static int ocfs2_mark_extent_refcounted(struct inode *inode,
{
int ret;
- mlog(0, "Inode %lu refcount tree cpos %u, len %u, phys cluster %u\n",
- inode->i_ino, cpos, len, phys);
+ trace_ocfs2_mark_extent_refcounted(OCFS2_I(inode)->ip_blkno,
+ cpos, len, phys);
if (!ocfs2_refcount_tree(OCFS2_SB(inode->i_sb))) {
ocfs2_error(inode->i_sb, "Inode %lu want to use refcount "
@@ -2393,8 +2397,6 @@ static int ocfs2_calc_refcount_meta_credits(struct super_block *sb,
struct buffer_head *ref_leaf_bh = NULL, *prev_bh = NULL;
u32 len;
- mlog(0, "start_cpos %llu, clusters %u\n",
- (unsigned long long)start_cpos, clusters);
while (clusters) {
ret = ocfs2_get_refcount_rec(ci, ref_root_bh,
cpos, clusters, &rec,
@@ -2413,7 +2415,7 @@ static int ocfs2_calc_refcount_meta_credits(struct super_block *sb,
rb = (struct ocfs2_refcount_block *)
prev_bh->b_data;
- if (le64_to_cpu(rb->rf_records.rl_used) +
+ if (le16_to_cpu(rb->rf_records.rl_used) +
recs_add >
le16_to_cpu(rb->rf_records.rl_count))
ref_blocks++;
@@ -2428,26 +2430,35 @@ static int ocfs2_calc_refcount_meta_credits(struct super_block *sb,
rb = (struct ocfs2_refcount_block *)ref_leaf_bh->b_data;
- mlog(0, "recs_add %d,cpos %llu, clusters %u, rec->r_cpos %llu,"
- "rec->r_clusters %u, rec->r_refcount %u, index %d\n",
- recs_add, (unsigned long long)cpos, clusters,
- (unsigned long long)le64_to_cpu(rec.r_cpos),
- le32_to_cpu(rec.r_clusters),
- le32_to_cpu(rec.r_refcount), index);
+ trace_ocfs2_calc_refcount_meta_credits_iterate(
+ recs_add, (unsigned long long)cpos, clusters,
+ (unsigned long long)le64_to_cpu(rec.r_cpos),
+ le32_to_cpu(rec.r_clusters),
+ le32_to_cpu(rec.r_refcount), index);
len = min((u64)cpos + clusters, le64_to_cpu(rec.r_cpos) +
le32_to_cpu(rec.r_clusters)) - cpos;
/*
- * If the refcount rec already exist, cool. We just need
- * to check whether there is a split. Otherwise we just need
- * to increase the refcount.
- * If we will insert one, increases recs_add.
- *
* We record all the records which will be inserted to the
* same refcount block, so that we can tell exactly whether
* we need a new refcount block or not.
+ *
+ * If we will insert a new one, this is easy and only happens
+ * during adding refcounted flag to the extent, so we don't
+ * have a chance of spliting. We just need one record.
+ *
+ * If the refcount rec already exists, that would be a little
+ * complicated. we may have to:
+ * 1) split at the beginning if the start pos isn't aligned.
+ * we need 1 more record in this case.
+ * 2) split int the end if the end pos isn't aligned.
+ * we need 1 more record in this case.
+ * 3) split in the middle because of file system fragmentation.
+ * we need 2 more records in this case(we can't detect this
+ * beforehand, so always think of the worst case).
*/
if (rec.r_refcount) {
+ recs_add += 2;
/* Check whether we need a split at the beginning. */
if (cpos == start_cpos &&
cpos != le64_to_cpu(rec.r_cpos))
@@ -2469,7 +2480,7 @@ static int ocfs2_calc_refcount_meta_credits(struct super_block *sb,
if (prev_bh) {
rb = (struct ocfs2_refcount_block *)prev_bh->b_data;
- if (le64_to_cpu(rb->rf_records.rl_used) + recs_add >
+ if (le16_to_cpu(rb->rf_records.rl_used) + recs_add >
le16_to_cpu(rb->rf_records.rl_count))
ref_blocks++;
@@ -2479,7 +2490,6 @@ static int ocfs2_calc_refcount_meta_credits(struct super_block *sb,
if (!ref_blocks)
goto out;
- mlog(0, "we need ref_blocks %d\n", ref_blocks);
*meta_add += ref_blocks;
*credits += ref_blocks;
@@ -2497,14 +2507,17 @@ static int ocfs2_calc_refcount_meta_credits(struct super_block *sb,
ocfs2_init_refcount_extent_tree(&et, ci, ref_root_bh);
*meta_add += ocfs2_extend_meta_needed(et.et_root_el);
*credits += ocfs2_calc_extend_credits(sb,
- et.et_root_el,
- ref_blocks);
+ et.et_root_el);
} else {
*credits += OCFS2_EXPAND_REFCOUNT_TREE_CREDITS;
*meta_add += 1;
}
out:
+
+ trace_ocfs2_calc_refcount_meta_credits(
+ (unsigned long long)start_cpos, clusters,
+ *meta_add, *credits);
brelse(ref_leaf_bh);
brelse(prev_bh);
return ret;
@@ -2517,20 +2530,19 @@ out:
*
* Normally the refcount blocks store these refcount should be
* contiguous also, so that we can get the number easily.
- * As for meta_ac, we will at most add split 2 refcount record and
- * 2 more refcount block, so just check it in a rough way.
+ * We will at most add split 2 refcount records and 2 more
+ * refcount blocks, so just check it in a rough way.
*
* Caller must hold refcount tree lock.
*/
int ocfs2_prepare_refcount_change_for_del(struct inode *inode,
- struct buffer_head *di_bh,
+ u64 refcount_loc,
u64 phys_blkno,
u32 clusters,
int *credits,
- struct ocfs2_alloc_context **meta_ac)
+ int *ref_blocks)
{
- int ret, ref_blocks = 0;
- struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data;
+ int ret;
struct ocfs2_inode_info *oi = OCFS2_I(inode);
struct buffer_head *ref_root_bh = NULL;
struct ocfs2_refcount_tree *tree;
@@ -2547,14 +2559,13 @@ int ocfs2_prepare_refcount_change_for_del(struct inode *inode,
BUG_ON(!(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL));
ret = ocfs2_get_refcount_tree(OCFS2_SB(inode->i_sb),
- le64_to_cpu(di->i_refcount_loc), &tree);
+ refcount_loc, &tree);
if (ret) {
mlog_errno(ret);
goto out;
}
- ret = ocfs2_read_refcount_block(&tree->rf_ci,
- le64_to_cpu(di->i_refcount_loc),
+ ret = ocfs2_read_refcount_block(&tree->rf_ci, refcount_loc,
&ref_root_bh);
if (ret) {
mlog_errno(ret);
@@ -2565,21 +2576,13 @@ int ocfs2_prepare_refcount_change_for_del(struct inode *inode,
&tree->rf_ci,
ref_root_bh,
start_cpos, clusters,
- &ref_blocks, credits);
+ ref_blocks, credits);
if (ret) {
mlog_errno(ret);
goto out;
}
- mlog(0, "reserve new metadata %d, credits = %d\n",
- ref_blocks, *credits);
-
- if (ref_blocks) {
- ret = ocfs2_reserve_new_metadata_blocks(OCFS2_SB(inode->i_sb),
- ref_blocks, meta_ac);
- if (ret)
- mlog_errno(ret);
- }
+ trace_ocfs2_prepare_refcount_change_for_del(*ref_blocks, *credits);
out:
brelse(ref_root_bh);
@@ -2875,8 +2878,7 @@ static int ocfs2_lock_refcount_allocators(struct super_block *sb,
meta_add =
ocfs2_extend_meta_needed(et->et_root_el);
- *credits += ocfs2_calc_extend_credits(sb, et->et_root_el,
- num_clusters + 2);
+ *credits += ocfs2_calc_extend_credits(sb, et->et_root_el);
ret = ocfs2_calc_refcount_meta_credits(sb, ref_ci, ref_root_bh,
p_cluster, num_clusters,
@@ -2886,8 +2888,7 @@ static int ocfs2_lock_refcount_allocators(struct super_block *sb,
goto out;
}
- mlog(0, "reserve new metadata %d, clusters %u, credits = %d\n",
- meta_add, num_clusters, *credits);
+ trace_ocfs2_lock_refcount_allocators(meta_add, *credits);
ret = ocfs2_reserve_new_metadata_blocks(OCFS2_SB(sb), meta_add,
meta_ac);
if (ret) {
@@ -2922,30 +2923,38 @@ static int ocfs2_clear_cow_buffer(handle_t *handle, struct buffer_head *bh)
return 0;
}
-static int ocfs2_duplicate_clusters_by_page(handle_t *handle,
- struct ocfs2_cow_context *context,
- u32 cpos, u32 old_cluster,
- u32 new_cluster, u32 new_len)
+int ocfs2_duplicate_clusters_by_page(handle_t *handle,
+ struct inode *inode,
+ u32 cpos, u32 old_cluster,
+ u32 new_cluster, u32 new_len)
{
int ret = 0, partial;
- struct ocfs2_caching_info *ci = context->data_et.et_ci;
- struct super_block *sb = ocfs2_metadata_cache_get_super(ci);
+ struct super_block *sb = inode->i_sb;
u64 new_block = ocfs2_clusters_to_blocks(sb, new_cluster);
struct page *page;
pgoff_t page_index;
- unsigned int from, to;
+ unsigned int from, to, readahead_pages;
loff_t offset, end, map_end;
- struct address_space *mapping = context->inode->i_mapping;
+ struct address_space *mapping = inode->i_mapping;
- mlog(0, "old_cluster %u, new %u, len %u at offset %u\n", old_cluster,
- new_cluster, new_len, cpos);
+ trace_ocfs2_duplicate_clusters_by_page(cpos, old_cluster,
+ new_cluster, new_len);
+ readahead_pages =
+ (ocfs2_cow_contig_clusters(sb) <<
+ OCFS2_SB(sb)->s_clustersize_bits) >> PAGE_CACHE_SHIFT;
offset = ((loff_t)cpos) << OCFS2_SB(sb)->s_clustersize_bits;
end = offset + (new_len << OCFS2_SB(sb)->s_clustersize_bits);
+ /*
+ * We only duplicate pages until we reach the page contains i_size - 1.
+ * So trim 'end' to i_size.
+ */
+ if (end > i_size_read(inode))
+ end = i_size_read(inode);
while (offset < end) {
page_index = offset >> PAGE_CACHE_SHIFT;
- map_end = (page_index + 1) << PAGE_CACHE_SHIFT;
+ map_end = ((loff_t)page_index + 1) << PAGE_CACHE_SHIFT;
if (map_end > end)
map_end = end;
@@ -2955,10 +2964,19 @@ static int ocfs2_duplicate_clusters_by_page(handle_t *handle,
if (map_end & (PAGE_CACHE_SIZE - 1))
to = map_end & (PAGE_CACHE_SIZE - 1);
- page = grab_cache_page(mapping, page_index);
+ page = find_or_create_page(mapping, page_index, GFP_NOFS);
+ if (!page) {
+ ret = -ENOMEM;
+ mlog_errno(ret);
+ break;
+ }
- /* This page can't be dirtied before we CoW it out. */
- BUG_ON(PageDirty(page));
+ /*
+ * In case PAGE_CACHE_SIZE <= CLUSTER_SIZE, This page
+ * can't be dirtied before we CoW it out.
+ */
+ if (PAGE_CACHE_SIZE <= OCFS2_SB(sb)->s_clustersize)
+ BUG_ON(PageDirty(page));
if (!PageUptodate(page)) {
ret = block_read_full_page(page, ocfs2_get_block);
@@ -2979,7 +2997,7 @@ static int ocfs2_duplicate_clusters_by_page(handle_t *handle,
}
}
- ocfs2_map_and_dirty_page(context->inode,
+ ocfs2_map_and_dirty_page(inode,
handle, from, to,
page, 0, &new_block);
mark_page_accessed(page);
@@ -2995,14 +3013,14 @@ unlock:
return ret;
}
-static int ocfs2_duplicate_clusters_by_jbd(handle_t *handle,
- struct ocfs2_cow_context *context,
- u32 cpos, u32 old_cluster,
- u32 new_cluster, u32 new_len)
+int ocfs2_duplicate_clusters_by_jbd(handle_t *handle,
+ struct inode *inode,
+ u32 cpos, u32 old_cluster,
+ u32 new_cluster, u32 new_len)
{
int ret = 0;
- struct super_block *sb = context->inode->i_sb;
- struct ocfs2_caching_info *ci = context->data_et.et_ci;
+ struct super_block *sb = inode->i_sb;
+ struct ocfs2_caching_info *ci = INODE_CACHE(inode);
int i, blocks = ocfs2_clusters_to_blocks(sb, new_len);
u64 old_block = ocfs2_clusters_to_blocks(sb, old_cluster);
u64 new_block = ocfs2_clusters_to_blocks(sb, new_cluster);
@@ -3010,13 +3028,13 @@ static int ocfs2_duplicate_clusters_by_jbd(handle_t *handle,
struct buffer_head *old_bh = NULL;
struct buffer_head *new_bh = NULL;
- mlog(0, "old_cluster %u, new %u, len %u\n", old_cluster,
- new_cluster, new_len);
+ trace_ocfs2_duplicate_clusters_by_page(cpos, old_cluster,
+ new_cluster, new_len);
for (i = 0; i < blocks; i++, old_block++, new_block++) {
new_bh = sb_getblk(osb->sb, new_block);
if (new_bh == NULL) {
- ret = -EIO;
+ ret = -ENOMEM;
mlog_errno(ret);
break;
}
@@ -3037,11 +3055,7 @@ static int ocfs2_duplicate_clusters_by_jbd(handle_t *handle,
}
memcpy(new_bh->b_data, old_bh->b_data, sb->s_blocksize);
- ret = ocfs2_journal_dirty(handle, new_bh);
- if (ret) {
- mlog_errno(ret);
- break;
- }
+ ocfs2_journal_dirty(handle, new_bh);
brelse(new_bh);
brelse(old_bh);
@@ -3068,8 +3082,8 @@ static int ocfs2_clear_ext_refcount(handle_t *handle,
struct super_block *sb = ocfs2_metadata_cache_get_super(et->et_ci);
u64 ino = ocfs2_metadata_cache_owner(et->et_ci);
- mlog(0, "inode %llu cpos %u, len %u, p_cluster %u, ext_flags %u\n",
- (unsigned long long)ino, cpos, len, p_cluster, ext_flags);
+ trace_ocfs2_clear_ext_refcount((unsigned long long)ino,
+ cpos, len, p_cluster, ext_flags);
memset(&replace_rec, 0, sizeof(replace_rec));
replace_rec.e_cpos = cpu_to_le32(cpos);
@@ -3124,13 +3138,13 @@ static int ocfs2_replace_clusters(handle_t *handle,
struct ocfs2_caching_info *ci = context->data_et.et_ci;
u64 ino = ocfs2_metadata_cache_owner(ci);
- mlog(0, "inode %llu, cpos %u, old %u, new %u, len %u, ext_flags %u\n",
- (unsigned long long)ino, cpos, old, new, len, ext_flags);
+ trace_ocfs2_replace_clusters((unsigned long long)ino,
+ cpos, old, new, len, ext_flags);
/*If the old clusters is unwritten, no need to duplicate. */
if (!(ext_flags & OCFS2_EXT_UNWRITTEN)) {
- ret = context->cow_duplicate_clusters(handle, context, cpos,
- old, new, len);
+ ret = context->cow_duplicate_clusters(handle, context->inode,
+ cpos, old, new, len);
if (ret) {
mlog_errno(ret);
goto out;
@@ -3146,22 +3160,22 @@ out:
return ret;
}
-static int ocfs2_cow_sync_writeback(struct super_block *sb,
- struct ocfs2_cow_context *context,
- u32 cpos, u32 num_clusters)
+int ocfs2_cow_sync_writeback(struct super_block *sb,
+ struct inode *inode,
+ u32 cpos, u32 num_clusters)
{
int ret = 0;
loff_t offset, end, map_end;
pgoff_t page_index;
struct page *page;
- if (ocfs2_should_order_data(context->inode))
+ if (ocfs2_should_order_data(inode))
return 0;
offset = ((loff_t)cpos) << OCFS2_SB(sb)->s_clustersize_bits;
end = offset + (num_clusters << OCFS2_SB(sb)->s_clustersize_bits);
- ret = filemap_fdatawrite_range(context->inode->i_mapping,
+ ret = filemap_fdatawrite_range(inode->i_mapping,
offset, end - 1);
if (ret < 0) {
mlog_errno(ret);
@@ -3170,11 +3184,12 @@ static int ocfs2_cow_sync_writeback(struct super_block *sb,
while (offset < end) {
page_index = offset >> PAGE_CACHE_SHIFT;
- map_end = (page_index + 1) << PAGE_CACHE_SHIFT;
+ map_end = ((loff_t)page_index + 1) << PAGE_CACHE_SHIFT;
if (map_end > end)
map_end = end;
- page = grab_cache_page(context->inode->i_mapping, page_index);
+ page = find_or_create_page(inode->i_mapping,
+ page_index, GFP_NOFS);
BUG_ON(!page);
wait_on_page_writeback(page);
@@ -3210,7 +3225,7 @@ static int ocfs2_make_clusters_writable(struct super_block *sb,
u32 num_clusters, unsigned int e_flags)
{
int ret, delete, index, credits = 0;
- u32 new_bit, new_len;
+ u32 new_bit, new_len, orig_num_clusters;
unsigned int set_len;
struct ocfs2_super *osb = OCFS2_SB(sb);
handle_t *handle;
@@ -3218,8 +3233,8 @@ static int ocfs2_make_clusters_writable(struct super_block *sb,
struct ocfs2_caching_info *ref_ci = &context->ref_tree->rf_ci;
struct ocfs2_refcount_rec rec;
- mlog(0, "cpos %u, p_cluster %u, num_clusters %u, e_flags %u\n",
- cpos, p_cluster, num_clusters, e_flags);
+ trace_ocfs2_make_clusters_writable(cpos, p_cluster,
+ num_clusters, e_flags);
ret = ocfs2_lock_refcount_allocators(sb, p_cluster, num_clusters,
&context->data_et,
@@ -3243,6 +3258,8 @@ static int ocfs2_make_clusters_writable(struct super_block *sb,
goto out;
}
+ orig_num_clusters = num_clusters;
+
while (num_clusters) {
ret = ocfs2_get_refcount_rec(ref_ci, context->ref_root_bh,
p_cluster, num_clusters,
@@ -3279,7 +3296,7 @@ static int ocfs2_make_clusters_writable(struct super_block *sb,
} else {
delete = 1;
- ret = __ocfs2_claim_clusters(osb, handle,
+ ret = __ocfs2_claim_clusters(handle,
context->data_ac,
1, set_len,
&new_bit, &new_len);
@@ -3330,7 +3347,8 @@ static int ocfs2_make_clusters_writable(struct super_block *sb,
* in write-back mode.
*/
if (context->get_clusters == ocfs2_di_get_clusters) {
- ret = ocfs2_cow_sync_writeback(sb, context, cpos, num_clusters);
+ ret = ocfs2_cow_sync_writeback(sb, context->inode, cpos,
+ orig_num_clusters);
if (ret)
mlog_errno(ret);
}
@@ -3431,9 +3449,9 @@ static int ocfs2_refcount_cow_hunk(struct inode *inode,
goto out;
}
- mlog(0, "CoW inode %lu, cpos %u, write_len %u, cow_start %u, "
- "cow_len %u\n", inode->i_ino,
- cpos, write_len, cow_start, cow_len);
+ trace_ocfs2_refcount_cow_hunk(OCFS2_I(inode)->ip_blkno,
+ cpos, write_len, max_cpos,
+ cow_start, cow_len);
BUG_ON(cow_len == 0);
@@ -3582,7 +3600,7 @@ int ocfs2_refcounted_xattr_delete_need(struct inode *inode,
* one will split a refcount rec, so totally we need
* clusters * 2 new refcount rec.
*/
- if (le64_to_cpu(rb->rf_records.rl_used) + clusters * 2 >
+ if (le16_to_cpu(rb->rf_records.rl_used) + clusters * 2 >
le16_to_cpu(rb->rf_records.rl_count))
ref_blocks++;
@@ -3610,8 +3628,7 @@ int ocfs2_refcounted_xattr_delete_need(struct inode *inode,
ocfs2_init_refcount_extent_tree(&et, ref_ci, ref_root_bh);
*credits += ocfs2_calc_extend_credits(inode->i_sb,
- et.et_root_el,
- ref_blocks);
+ et.et_root_el);
}
out:
@@ -3659,7 +3676,7 @@ int ocfs2_refcount_cow_xattr(struct inode *inode,
context->cow_start = cow_start;
context->cow_len = cow_len;
context->ref_tree = ref_tree;
- context->ref_root_bh = ref_root_bh;;
+ context->ref_root_bh = ref_root_bh;
context->cow_object = xv;
context->cow_duplicate_clusters = ocfs2_duplicate_clusters_by_jbd;
@@ -3708,8 +3725,7 @@ int ocfs2_add_refcount_flag(struct inode *inode,
goto out;
}
- mlog(0, "reserve new metadata %d, credits = %d\n",
- ref_blocks, credits);
+ trace_ocfs2_add_refcount_flag(ref_blocks, credits);
if (ref_blocks) {
ret = ocfs2_reserve_new_metadata_blocks(OCFS2_SB(inode->i_sb),
@@ -3840,7 +3856,10 @@ static int ocfs2_attach_refcount_tree(struct inode *inode,
while (cpos < clusters) {
ret = ocfs2_get_clusters(inode, cpos, &p_cluster,
&num_clusters, &ext_flags);
-
+ if (ret) {
+ mlog_errno(ret);
+ goto unlock;
+ }
if (p_cluster && !(ext_flags & OCFS2_EXT_REFCOUNTED)) {
ret = ocfs2_add_refcount_flag(inode, &di_et,
&ref_tree->rf_ci,
@@ -4011,7 +4030,10 @@ static int ocfs2_duplicate_extent_list(struct inode *s_inode,
while (cpos < clusters) {
ret = ocfs2_get_clusters(s_inode, cpos, &p_cluster,
&num_clusters, &ext_flags);
-
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
if (p_cluster) {
ret = ocfs2_add_refcounted_extent(t_inode, &et,
ref_ci, ref_root_bh,
@@ -4071,6 +4093,7 @@ static int ocfs2_complete_reflink(struct inode *s_inode,
OCFS2_I(t_inode)->ip_dyn_features = OCFS2_I(s_inode)->ip_dyn_features;
spin_unlock(&OCFS2_I(t_inode)->ip_lock);
i_size_write(t_inode, size);
+ t_inode->i_blocks = s_inode->i_blocks;
di->i_xattr_inline_size = s_di->i_xattr_inline_size;
di->i_clusters = s_di->i_clusters;
@@ -4079,6 +4102,9 @@ static int ocfs2_complete_reflink(struct inode *s_inode,
di->i_attr = s_di->i_attr;
if (preserve) {
+ t_inode->i_uid = s_inode->i_uid;
+ t_inode->i_gid = s_inode->i_gid;
+ t_inode->i_mode = s_inode->i_mode;
di->i_uid = s_di->i_uid;
di->i_gid = s_di->i_gid;
di->i_mode = s_di->i_mode;
@@ -4173,6 +4199,12 @@ static int __ocfs2_reflink(struct dentry *old_dentry,
struct inode *inode = old_dentry->d_inode;
struct buffer_head *new_bh = NULL;
+ if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_SYSTEM_FILE) {
+ ret = -EINVAL;
+ mlog_errno(ret);
+ goto out;
+ }
+
ret = filemap_fdatawrite(inode->i_mapping);
if (ret) {
mlog_errno(ret);
@@ -4185,8 +4217,9 @@ static int __ocfs2_reflink(struct dentry *old_dentry,
goto out;
}
- mutex_lock(&new_inode->i_mutex);
- ret = ocfs2_inode_lock(new_inode, &new_bh, 1);
+ mutex_lock_nested(&new_inode->i_mutex, I_MUTEX_CHILD);
+ ret = ocfs2_inode_lock_nested(new_inode, &new_bh, 1,
+ OI_LS_REFLINK_TARGET);
if (ret) {
mlog_errno(ret);
goto out_unlock;
@@ -4235,20 +4268,36 @@ static int ocfs2_reflink(struct dentry *old_dentry, struct inode *dir,
struct inode *inode = old_dentry->d_inode;
struct buffer_head *old_bh = NULL;
struct inode *new_orphan_inode = NULL;
+ struct posix_acl *default_acl, *acl;
+ umode_t mode;
if (!ocfs2_refcount_tree(OCFS2_SB(inode->i_sb)))
return -EOPNOTSUPP;
- error = ocfs2_create_inode_in_orphan(dir, inode->i_mode,
+ mode = inode->i_mode;
+ error = posix_acl_create(dir, &mode, &default_acl, &acl);
+ if (error) {
+ mlog_errno(error);
+ goto out;
+ }
+
+ error = ocfs2_create_inode_in_orphan(dir, mode,
&new_orphan_inode);
if (error) {
mlog_errno(error);
goto out;
}
+ error = ocfs2_rw_lock(inode, 1);
+ if (error) {
+ mlog_errno(error);
+ goto out;
+ }
+
error = ocfs2_inode_lock(inode, &old_bh, 1);
if (error) {
mlog_errno(error);
+ ocfs2_rw_unlock(inode, 1);
goto out;
}
@@ -4260,6 +4309,7 @@ static int ocfs2_reflink(struct dentry *old_dentry, struct inode *dir,
up_write(&OCFS2_I(inode)->ip_xattr_sem);
ocfs2_inode_unlock(inode, 1);
+ ocfs2_rw_unlock(inode, 1);
brelse(old_bh);
if (error) {
@@ -4269,11 +4319,17 @@ static int ocfs2_reflink(struct dentry *old_dentry, struct inode *dir,
/* If the security isn't preserved, we need to re-initialize them. */
if (!preserve) {
- error = ocfs2_init_security_and_acl(dir, new_orphan_inode);
+ error = ocfs2_init_security_and_acl(dir, new_orphan_inode,
+ &new_dentry->d_name,
+ default_acl, acl);
if (error)
mlog_errno(error);
}
out:
+ if (default_acl)
+ posix_acl_release(default_acl);
+ if (acl)
+ posix_acl_release(acl);
if (!error) {
error = ocfs2_mv_orphaned_inode_to_new(dir, new_orphan_inode,
new_dentry);
@@ -4310,25 +4366,6 @@ static inline int ocfs2_may_create(struct inode *dir, struct dentry *child)
return inode_permission(dir, MAY_WRITE | MAY_EXEC);
}
-/* copied from user_path_parent. */
-static int ocfs2_user_path_parent(const char __user *path,
- struct nameidata *nd, char **name)
-{
- char *s = getname(path);
- int error;
-
- if (IS_ERR(s))
- return PTR_ERR(s);
-
- error = path_lookup(s, LOOKUP_PARENT, nd);
- if (error)
- putname(s);
- else
- *name = s;
-
- return error;
-}
-
/**
* ocfs2_vfs_reflink - Create a reference-counted link
*
@@ -4368,7 +4405,7 @@ static int ocfs2_vfs_reflink(struct dentry *old_dentry, struct inode *dir,
* rights to do so.
*/
if (preserve) {
- if ((current_fsuid() != inode->i_uid) && !capable(CAP_CHOWN))
+ if (!uid_eq(current_fsuid(), inode->i_uid) && !capable(CAP_CHOWN))
return -EPERM;
if (!in_group_p(inode->i_gid) && !capable(CAP_CHOWN))
return -EPERM;
@@ -4386,7 +4423,7 @@ static int ocfs2_vfs_reflink(struct dentry *old_dentry, struct inode *dir,
}
mutex_lock(&inode->i_mutex);
- vfs_dq_init(dir);
+ dquot_initialize(dir);
error = ocfs2_reflink(old_dentry, dir, new_dentry, preserve);
mutex_unlock(&inode->i_mutex);
if (!error)
@@ -4402,10 +4439,8 @@ int ocfs2_reflink_ioctl(struct inode *inode,
bool preserve)
{
struct dentry *new_dentry;
- struct nameidata nd;
- struct path old_path;
+ struct path old_path, new_path;
int error;
- char *to = NULL;
if (!ocfs2_refcount_tree(OCFS2_SB(inode->i_sb)))
return -EOPNOTSUPP;
@@ -4416,39 +4451,24 @@ int ocfs2_reflink_ioctl(struct inode *inode,
return error;
}
- error = ocfs2_user_path_parent(newname, &nd, &to);
- if (error) {
- mlog_errno(error);
- goto out;
- }
-
- error = -EXDEV;
- if (old_path.mnt != nd.path.mnt)
- goto out_release;
- new_dentry = lookup_create(&nd, 0);
+ new_dentry = user_path_create(AT_FDCWD, newname, &new_path, 0);
error = PTR_ERR(new_dentry);
if (IS_ERR(new_dentry)) {
mlog_errno(error);
- goto out_unlock;
+ goto out;
}
- error = mnt_want_write(nd.path.mnt);
- if (error) {
+ error = -EXDEV;
+ if (old_path.mnt != new_path.mnt) {
mlog_errno(error);
goto out_dput;
}
error = ocfs2_vfs_reflink(old_path.dentry,
- nd.path.dentry->d_inode,
+ new_path.dentry->d_inode,
new_dentry, preserve);
- mnt_drop_write(nd.path.mnt);
out_dput:
- dput(new_dentry);
-out_unlock:
- mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
-out_release:
- path_put(&nd.path);
- putname(to);
+ done_path_create(&new_path, new_dentry);
out:
path_put(&old_path);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 14:57:53 +0000