dquot: cleanup space allocation / freeing routines
Get rid of the alloc_space, free_space, reserve_space, claim_space and
release_rsv dquot operations - they are always called from the filesystem
and if a filesystem really needs their own (which none currently does)
it can just call into it's own routine directly.
Move shared logic into the common __dquot_alloc_space,
dquot_claim_space_nodirty and __dquot_free_space low-level methods,
and rationalize the wrappers around it to move as much as possible
code into the common block for CONFIG_QUOTA vs not. Also rename
all these helpers to be named dquot_* instead of vfs_dq_*.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index e119524..9f607ea 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1093,9 +1093,9 @@
/* Update quota subsystem */
if (quota_claim) {
- vfs_dq_claim_block(inode, used);
+ dquot_claim_block(inode, used);
if (mdb_free)
- vfs_dq_release_reservation_block(inode, mdb_free);
+ dquot_release_reservation_block(inode, mdb_free);
} else {
/*
* We did fallocate with an offset that is already delayed
@@ -1106,8 +1106,8 @@
* that
*/
if (allocated_meta_blocks)
- vfs_dq_claim_block(inode, allocated_meta_blocks);
- vfs_dq_release_reservation_block(inode, mdb_free + used);
+ dquot_claim_block(inode, allocated_meta_blocks);
+ dquot_release_reservation_block(inode, mdb_free + used);
}
/*
@@ -1836,6 +1836,7 @@
struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
struct ext4_inode_info *ei = EXT4_I(inode);
unsigned long md_needed, md_reserved;
+ int ret;
/*
* recalculate the amount of metadata blocks to reserve
@@ -1853,11 +1854,12 @@
* later. Real quota accounting is done at pages writeout
* time.
*/
- if (vfs_dq_reserve_block(inode, md_needed + 1))
- return -EDQUOT;
+ ret = dquot_reserve_block(inode, md_needed + 1);
+ if (ret)
+ return ret;
if (ext4_claim_free_blocks(sbi, md_needed + 1)) {
- vfs_dq_release_reservation_block(inode, md_needed + 1);
+ dquot_release_reservation_block(inode, md_needed + 1);
if (ext4_should_retry_alloc(inode->i_sb, &retries)) {
yield();
goto repeat;
@@ -1914,7 +1916,7 @@
spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
- vfs_dq_release_reservation_block(inode, to_free);
+ dquot_release_reservation_block(inode, to_free);
}
static void ext4_da_page_release_reservation(struct page *page,
@@ -5641,7 +5643,7 @@
* i_size has been changed by generic_commit_write() and we thus need
* to include the updated inode in the current transaction.
*
- * Also, vfs_dq_alloc_block() will always dirty the inode when blocks
+ * Also, dquot_alloc_block() will always dirty the inode when blocks
* are allocated to the file.
*
* If the inode is marked synchronous, we don't honour that here - doing
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index d34afad..0b90578 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4254,7 +4254,7 @@
return 0;
}
reserv_blks = ar->len;
- while (ar->len && vfs_dq_alloc_block(ar->inode, ar->len)) {
+ while (ar->len && dquot_alloc_block(ar->inode, ar->len)) {
ar->flags |= EXT4_MB_HINT_NOPREALLOC;
ar->len--;
}
@@ -4331,7 +4331,7 @@
kmem_cache_free(ext4_ac_cachep, ac);
out1:
if (inquota && ar->len < inquota)
- vfs_dq_free_block(ar->inode, inquota - ar->len);
+ dquot_free_block(ar->inode, inquota - ar->len);
out3:
if (!ar->len) {
if (!EXT4_I(ar->inode)->i_delalloc_reserved_flag)
@@ -4646,7 +4646,7 @@
sb->s_dirt = 1;
error_return:
if (freed)
- vfs_dq_free_block(inode, freed);
+ dquot_free_block(inode, freed);
brelse(bitmap_bh);
ext4_std_error(sb, err);
if (ac)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 735c20d..fa8f4ded 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1014,15 +1014,10 @@
static const struct dquot_operations ext4_quota_operations = {
.initialize = dquot_initialize,
.drop = dquot_drop,
- .alloc_space = dquot_alloc_space,
- .reserve_space = dquot_reserve_space,
- .claim_space = dquot_claim_space,
- .release_rsv = dquot_release_reserved_space,
#ifdef CONFIG_QUOTA
.get_reserved_space = ext4_get_reserved_space,
#endif
.alloc_inode = dquot_alloc_inode,
- .free_space = dquot_free_space,
.free_inode = dquot_free_inode,
.transfer = dquot_transfer,
.write_dquot = ext4_write_dquot,
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index f3a2f7e..ab3a95e 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -494,7 +494,7 @@
error = ext4_handle_dirty_metadata(handle, inode, bh);
if (IS_SYNC(inode))
ext4_handle_sync(handle);
- vfs_dq_free_block(inode, 1);
+ dquot_free_block(inode, 1);
ea_bdebug(bh, "refcount now=%d; releasing",
le32_to_cpu(BHDR(bh)->h_refcount));
if (ce)
@@ -787,8 +787,8 @@
else {
/* The old block is released after updating
the inode. */
- error = -EDQUOT;
- if (vfs_dq_alloc_block(inode, 1))
+ error = dquot_alloc_block(inode, 1);
+ if (error)
goto cleanup;
error = ext4_journal_get_write_access(handle,
new_bh);
@@ -876,7 +876,7 @@
return error;
cleanup_dquot:
- vfs_dq_free_block(inode, 1);
+ dquot_free_block(inode, 1);
goto cleanup;
bad_block: