aboutsummaryrefslogtreecommitdiff
path: root/fs/ext2/ialloc.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/ext2/ialloc.c')
-rw-r--r--fs/ext2/ialloc.c86
1 files changed, 37 insertions, 49 deletions
diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c
index 5deb8b74e64..7d66fb0e4cc 100644
--- a/fs/ext2/ialloc.c
+++ b/fs/ext2/ialloc.c
@@ -75,15 +75,12 @@ static void ext2_release_inode(struct super_block *sb, int group, int dir)
}
spin_lock(sb_bgl_lock(EXT2_SB(sb), group));
- desc->bg_free_inodes_count =
- cpu_to_le16(le16_to_cpu(desc->bg_free_inodes_count) + 1);
+ le16_add_cpu(&desc->bg_free_inodes_count, 1);
if (dir)
- desc->bg_used_dirs_count =
- cpu_to_le16(le16_to_cpu(desc->bg_used_dirs_count) - 1);
+ le16_add_cpu(&desc->bg_used_dirs_count, -1);
spin_unlock(sb_bgl_lock(EXT2_SB(sb), group));
if (dir)
percpu_counter_dec(&EXT2_SB(sb)->s_dirs_counter);
- sb->s_dirt = 1;
mark_buffer_dirty(bh);
}
@@ -108,7 +105,7 @@ void ext2_free_inode (struct inode * inode)
struct super_block * sb = inode->i_sb;
int is_directory;
unsigned long ino;
- struct buffer_head *bitmap_bh = NULL;
+ struct buffer_head *bitmap_bh;
unsigned long block_group;
unsigned long bit;
struct ext2_super_block * es;
@@ -120,31 +117,24 @@ void ext2_free_inode (struct inode * inode)
* Note: we must free any quota before locking the superblock,
* as writing the quota to disk may need the lock as well.
*/
- if (!is_bad_inode(inode)) {
- /* Quota is already initialized in iput() */
- ext2_xattr_delete_inode(inode);
- DQUOT_FREE_INODE(inode);
- DQUOT_DROP(inode);
- }
+ /* Quota is already initialized in iput() */
+ dquot_free_inode(inode);
+ dquot_drop(inode);
es = EXT2_SB(sb)->s_es;
is_directory = S_ISDIR(inode->i_mode);
- /* Do this BEFORE marking the inode not in use or returning an error */
- clear_inode (inode);
-
if (ino < EXT2_FIRST_INO(sb) ||
ino > le32_to_cpu(es->s_inodes_count)) {
ext2_error (sb, "ext2_free_inode",
"reserved or nonexistent inode %lu", ino);
- goto error_return;
+ return;
}
block_group = (ino - 1) / EXT2_INODES_PER_GROUP(sb);
bit = (ino - 1) % EXT2_INODES_PER_GROUP(sb);
- brelse(bitmap_bh);
bitmap_bh = read_inode_bitmap(sb, block_group);
if (!bitmap_bh)
- goto error_return;
+ return;
/* Ok, now we can actually update the inode bitmaps.. */
if (!ext2_clear_bit_atomic(sb_bgl_lock(EXT2_SB(sb), block_group),
@@ -156,7 +146,7 @@ void ext2_free_inode (struct inode * inode)
mark_buffer_dirty(bitmap_bh);
if (sb->s_flags & MS_SYNCHRONOUS)
sync_dirty_buffer(bitmap_bh);
-error_return:
+
brelse(bitmap_bh);
}
@@ -253,7 +243,7 @@ static int find_group_dir(struct super_block *sb, struct inode *parent)
* it has too few free inodes left (min_inodes) or
* it has too few free blocks left (min_blocks) or
* it's already running too large debt (max_debt).
- * Parent's group is prefered, if it doesn't satisfy these
+ * Parent's group is preferred, if it doesn't satisfy these
* conditions we search cyclically through the rest. If none
* of the groups look good we just look for a group with more
* free inodes than average (starting at parent's group).
@@ -294,7 +284,7 @@ static int find_group_orlov(struct super_block *sb, struct inode *parent)
int best_ndir = inodes_per_group;
int best_group = -1;
- get_random_bytes(&group, sizeof(group));
+ group = prandom_u32();
parent_group = (unsigned)group % ngroups;
for (i = 0; i < ngroups; i++) {
group = (parent_group + i) % ngroups;
@@ -437,7 +427,8 @@ found:
return group;
}
-struct inode *ext2_new_inode(struct inode *dir, int mode)
+struct inode *ext2_new_inode(struct inode *dir, umode_t mode,
+ const struct qstr *qstr)
{
struct super_block *sb;
struct buffer_head *bitmap_bh = NULL;
@@ -539,42 +530,31 @@ got:
percpu_counter_inc(&sbi->s_dirs_counter);
spin_lock(sb_bgl_lock(sbi, group));
- gdp->bg_free_inodes_count =
- cpu_to_le16(le16_to_cpu(gdp->bg_free_inodes_count) - 1);
+ le16_add_cpu(&gdp->bg_free_inodes_count, -1);
if (S_ISDIR(mode)) {
if (sbi->s_debts[group] < 255)
sbi->s_debts[group]++;
- gdp->bg_used_dirs_count =
- cpu_to_le16(le16_to_cpu(gdp->bg_used_dirs_count) + 1);
+ le16_add_cpu(&gdp->bg_used_dirs_count, 1);
} else {
if (sbi->s_debts[group])
sbi->s_debts[group]--;
}
spin_unlock(sb_bgl_lock(sbi, group));
- sb->s_dirt = 1;
mark_buffer_dirty(bh2);
- inode->i_uid = current->fsuid;
- if (test_opt (sb, GRPID))
+ if (test_opt(sb, GRPID)) {
+ inode->i_mode = mode;
+ inode->i_uid = current_fsuid();
inode->i_gid = dir->i_gid;
- else if (dir->i_mode & S_ISGID) {
- inode->i_gid = dir->i_gid;
- if (S_ISDIR(mode))
- mode |= S_ISGID;
} else
- inode->i_gid = current->fsgid;
- inode->i_mode = mode;
+ inode_init_owner(inode, dir, mode);
inode->i_ino = ino;
inode->i_blocks = 0;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
memset(ei->i_data, 0, sizeof(ei->i_data));
- ei->i_flags = EXT2_I(dir)->i_flags & ~EXT2_BTREE_FL;
- if (S_ISLNK(mode))
- ei->i_flags &= ~(EXT2_IMMUTABLE_FL|EXT2_APPEND_FL);
- /* dirsync is only applied to directories */
- if (!S_ISDIR(mode))
- ei->i_flags &= ~EXT2_DIRSYNC_FL;
+ ei->i_flags =
+ ext2_mask_flags(mode, EXT2_I(dir)->i_flags & EXT2_FL_INHERITED);
ei->i_faddr = 0;
ei->i_frag_no = 0;
ei->i_frag_size = 0;
@@ -589,18 +569,24 @@ got:
spin_lock(&sbi->s_next_gen_lock);
inode->i_generation = sbi->s_next_generation++;
spin_unlock(&sbi->s_next_gen_lock);
- insert_inode_hash(inode);
+ if (insert_inode_locked(inode) < 0) {
+ ext2_error(sb, "ext2_new_inode",
+ "inode number already in use - inode=%lu",
+ (unsigned long) ino);
+ err = -EIO;
+ goto fail;
+ }
- if (DQUOT_ALLOC_INODE(inode)) {
- err = -EDQUOT;
+ dquot_initialize(inode);
+ err = dquot_alloc_inode(inode);
+ if (err)
goto fail_drop;
- }
err = ext2_init_acl(inode, dir);
if (err)
goto fail_free_drop;
- err = ext2_init_security(inode,dir);
+ err = ext2_init_security(inode, dir, qstr);
if (err)
goto fail_free_drop;
@@ -610,12 +596,13 @@ got:
return inode;
fail_free_drop:
- DQUOT_FREE_INODE(inode);
+ dquot_free_inode(inode);
fail_drop:
- DQUOT_DROP(inode);
+ dquot_drop(inode);
inode->i_flags |= S_NOQUOTA;
- inode->i_nlink = 0;
+ clear_nlink(inode);
+ unlock_new_inode(inode);
iput(inode);
return ERR_PTR(err);
@@ -656,6 +643,7 @@ unsigned long ext2_count_free_inodes (struct super_block * sb)
}
brelse(bitmap_bh);
printk("ext2_count_free_inodes: stored = %lu, computed = %lu, %lu\n",
+ (unsigned long)
percpu_counter_read(&EXT2_SB(sb)->s_freeinodes_counter),
desc_count, bitmap_count);
return desc_count;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 05:09:59 +0000