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-rw-r--r--fs/ext4/acl.c12
-rw-r--r--fs/ext4/ext4.h2
-rw-r--r--fs/ext4/inline.c4
-rw-r--r--fs/ext4/inode.c2
-rw-r--r--fs/ext4/ioctl.c6
-rw-r--r--fs/ext4/mballoc.c4
-rw-r--r--fs/ext4/super.c64
-rw-r--r--fs/ext4/xattr.c32
8 files changed, 88 insertions, 38 deletions
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index 69b1e73026a5..c3fe1e323951 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -196,15 +196,11 @@ __ext4_set_acl(handle_t *handle, struct inode *inode, int type,
case ACL_TYPE_ACCESS:
name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
if (acl) {
- error = posix_acl_equiv_mode(acl, &inode->i_mode);
- if (error < 0)
+ error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+ if (error)
return error;
- else {
- inode->i_ctime = ext4_current_time(inode);
- ext4_mark_inode_dirty(handle, inode);
- if (error == 0)
- acl = NULL;
- }
+ inode->i_ctime = ext4_current_time(inode);
+ ext4_mark_inode_dirty(handle, inode);
}
break;
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 15213a567301..df67a6f8582a 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -224,6 +224,7 @@ struct ext4_io_submit {
#define EXT4_MAX_BLOCK_SIZE 65536
#define EXT4_MIN_BLOCK_LOG_SIZE 10
#define EXT4_MAX_BLOCK_LOG_SIZE 16
+#define EXT4_MAX_CLUSTER_LOG_SIZE 30
#ifdef __KERNEL__
# define EXT4_BLOCK_SIZE(s) ((s)->s_blocksize)
#else
@@ -1008,6 +1009,7 @@ struct ext4_inode_info {
/*
* Mount flags set via mount options or defaults
*/
+#define EXT4_MOUNT_NO_MBCACHE 0x00001 /* Disable mbcache */
#define EXT4_MOUNT_GRPID 0x00004 /* Create files with directory's group */
#define EXT4_MOUNT_DEBUG 0x00008 /* Some debugging messages */
#define EXT4_MOUNT_ERRORS_CONT 0x00010 /* Continue on errors */
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index 095c7a258d97..d77d542c2ed5 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -336,8 +336,10 @@ static int ext4_update_inline_data(handle_t *handle, struct inode *inode,
len -= EXT4_MIN_INLINE_DATA_SIZE;
value = kzalloc(len, GFP_NOFS);
- if (!value)
+ if (!value) {
+ error = -ENOMEM;
goto out;
+ }
error = ext4_xattr_ibody_get(inode, i.name_index, i.name,
value, len);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 9b55c6f71bf2..5beca5c5413e 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4751,7 +4751,7 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
int orphan = 0;
const unsigned int ia_valid = attr->ia_valid;
- error = inode_change_ok(inode, attr);
+ error = setattr_prepare(dentry, attr);
if (error)
return error;
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 2cb9e178d1c5..4196aa567784 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -637,7 +637,13 @@ resizefs_out:
goto encryption_policy_out;
}
+ err = mnt_want_write_file(filp);
+ if (err)
+ goto encryption_policy_out;
+
err = ext4_process_policy(&policy, inode);
+
+ mnt_drop_write_file(filp);
encryption_policy_out:
return err;
#else
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 5b58e266892b..e6798ca34928 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -668,7 +668,7 @@ static void ext4_mb_mark_free_simple(struct super_block *sb,
ext4_grpblk_t min;
ext4_grpblk_t max;
ext4_grpblk_t chunk;
- unsigned short border;
+ unsigned int border;
BUG_ON(len > EXT4_CLUSTERS_PER_GROUP(sb));
@@ -2254,7 +2254,7 @@ static int ext4_mb_seq_groups_show(struct seq_file *seq, void *v)
struct ext4_group_info *grinfo;
struct sg {
struct ext4_group_info info;
- ext4_grpblk_t counters[16];
+ ext4_grpblk_t counters[EXT4_MAX_BLOCK_LOG_SIZE + 2];
} sg;
group--;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index f01dd19adb7b..97aa8be40175 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1144,6 +1144,7 @@ enum {
Opt_nomblk_io_submit, Opt_block_validity, Opt_noblock_validity,
Opt_inode_readahead_blks, Opt_journal_ioprio,
Opt_dioread_nolock, Opt_dioread_lock,
+ Opt_no_mbcache,
Opt_discard, Opt_nodiscard, Opt_init_itable, Opt_noinit_itable,
Opt_max_dir_size_kb, Opt_nojournal_checksum,
};
@@ -1222,6 +1223,7 @@ static const match_table_t tokens = {
{Opt_discard, "discard"},
{Opt_nodiscard, "nodiscard"},
{Opt_init_itable, "init_itable=%u"},
+ {Opt_no_mbcache, "no_mbcache"},
{Opt_init_itable, "init_itable"},
{Opt_noinit_itable, "noinit_itable"},
{Opt_max_dir_size_kb, "max_dir_size_kb=%u"},
@@ -1385,6 +1387,7 @@ static const struct mount_opts {
{Opt_noauto_da_alloc, EXT4_MOUNT_NO_AUTO_DA_ALLOC, MOPT_SET},
{Opt_auto_da_alloc, EXT4_MOUNT_NO_AUTO_DA_ALLOC, MOPT_CLEAR},
{Opt_noinit_itable, EXT4_MOUNT_INIT_INODE_TABLE, MOPT_CLEAR},
+ {Opt_no_mbcache, EXT4_MOUNT_NO_MBCACHE, MOPT_SET},
{Opt_commit, 0, MOPT_GTE0},
{Opt_max_batch_time, 0, MOPT_GTE0},
{Opt_min_batch_time, 0, MOPT_GTE0},
@@ -2082,6 +2085,7 @@ void ext4_group_desc_csum_set(struct super_block *sb, __u32 block_group,
/* Called at mount-time, super-block is locked */
static int ext4_check_descriptors(struct super_block *sb,
+ ext4_fsblk_t sb_block,
ext4_group_t *first_not_zeroed)
{
struct ext4_sb_info *sbi = EXT4_SB(sb);
@@ -2112,6 +2116,11 @@ static int ext4_check_descriptors(struct super_block *sb,
grp = i;
block_bitmap = ext4_block_bitmap(sb, gdp);
+ if (block_bitmap == sb_block) {
+ ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: "
+ "Block bitmap for group %u overlaps "
+ "superblock", i);
+ }
if (block_bitmap < first_block || block_bitmap > last_block) {
ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: "
"Block bitmap for group %u not in group "
@@ -2119,6 +2128,11 @@ static int ext4_check_descriptors(struct super_block *sb,
return 0;
}
inode_bitmap = ext4_inode_bitmap(sb, gdp);
+ if (inode_bitmap == sb_block) {
+ ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: "
+ "Inode bitmap for group %u overlaps "
+ "superblock", i);
+ }
if (inode_bitmap < first_block || inode_bitmap > last_block) {
ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: "
"Inode bitmap for group %u not in group "
@@ -2126,6 +2140,11 @@ static int ext4_check_descriptors(struct super_block *sb,
return 0;
}
inode_table = ext4_inode_table(sb, gdp);
+ if (inode_table == sb_block) {
+ ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: "
+ "Inode table for group %u overlaps "
+ "superblock", i);
+ }
if (inode_table < first_block ||
inode_table + sbi->s_itb_per_group - 1 > last_block) {
ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: "
@@ -3342,10 +3361,15 @@ static int count_overhead(struct super_block *sb, ext4_group_t grp,
ext4_set_bit(s++, buf);
count++;
}
- for (j = ext4_bg_num_gdb(sb, grp); j > 0; j--) {
- ext4_set_bit(EXT4_B2C(sbi, s++), buf);
- count++;
+ j = ext4_bg_num_gdb(sb, grp);
+ if (s + j > EXT4_BLOCKS_PER_GROUP(sb)) {
+ ext4_error(sb, "Invalid number of block group "
+ "descriptor blocks: %d", j);
+ j = EXT4_BLOCKS_PER_GROUP(sb) - s;
}
+ count += j;
+ for (; j > 0; j--)
+ ext4_set_bit(EXT4_B2C(sbi, s++), buf);
}
if (!count)
return 0;
@@ -3717,7 +3741,15 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
if (blocksize < EXT4_MIN_BLOCK_SIZE ||
blocksize > EXT4_MAX_BLOCK_SIZE) {
ext4_msg(sb, KERN_ERR,
- "Unsupported filesystem blocksize %d", blocksize);
+ "Unsupported filesystem blocksize %d (%d log_block_size)",
+ blocksize, le32_to_cpu(es->s_log_block_size));
+ goto failed_mount;
+ }
+ if (le32_to_cpu(es->s_log_block_size) >
+ (EXT4_MAX_BLOCK_LOG_SIZE - EXT4_MIN_BLOCK_LOG_SIZE)) {
+ ext4_msg(sb, KERN_ERR,
+ "Invalid log block size: %u",
+ le32_to_cpu(es->s_log_block_size));
goto failed_mount;
}
@@ -3813,12 +3845,16 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group);
sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group);
- if (EXT4_INODE_SIZE(sb) == 0 || EXT4_INODES_PER_GROUP(sb) == 0)
- goto cantfind_ext4;
sbi->s_inodes_per_block = blocksize / EXT4_INODE_SIZE(sb);
if (sbi->s_inodes_per_block == 0)
goto cantfind_ext4;
+ if (sbi->s_inodes_per_group < sbi->s_inodes_per_block ||
+ sbi->s_inodes_per_group > blocksize * 8) {
+ ext4_msg(sb, KERN_ERR, "invalid inodes per group: %lu\n",
+ sbi->s_blocks_per_group);
+ goto failed_mount;
+ }
sbi->s_itb_per_group = sbi->s_inodes_per_group /
sbi->s_inodes_per_block;
sbi->s_desc_per_block = blocksize / EXT4_DESC_SIZE(sb);
@@ -3859,6 +3895,13 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
"block size (%d)", clustersize, blocksize);
goto failed_mount;
}
+ if (le32_to_cpu(es->s_log_cluster_size) >
+ (EXT4_MAX_CLUSTER_LOG_SIZE - EXT4_MIN_BLOCK_LOG_SIZE)) {
+ ext4_msg(sb, KERN_ERR,
+ "Invalid log cluster size: %u",
+ le32_to_cpu(es->s_log_cluster_size));
+ goto failed_mount;
+ }
sbi->s_cluster_bits = le32_to_cpu(es->s_log_cluster_size) -
le32_to_cpu(es->s_log_block_size);
sbi->s_clusters_per_group =
@@ -3895,13 +3938,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
}
sbi->s_cluster_ratio = clustersize / blocksize;
- if (sbi->s_inodes_per_group > blocksize * 8) {
- ext4_msg(sb, KERN_ERR,
- "#inodes per group too big: %lu",
- sbi->s_inodes_per_group);
- goto failed_mount;
- }
-
/* Do we have standard group size of clustersize * 8 blocks ? */
if (sbi->s_blocks_per_group == clustersize << 3)
set_opt2(sb, STD_GROUP_SIZE);
@@ -3989,7 +4025,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
goto failed_mount2;
}
}
- if (!ext4_check_descriptors(sb, &first_not_zeroed)) {
+ if (!ext4_check_descriptors(sb, logical_sb_block, &first_not_zeroed)) {
ext4_msg(sb, KERN_ERR, "group descriptors corrupted!");
goto failed_mount2;
}
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 16e28c08d1e8..cdc26e54400f 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -80,7 +80,7 @@
# define ea_bdebug(bh, fmt, ...) no_printk(fmt, ##__VA_ARGS__)
#endif
-static void ext4_xattr_cache_insert(struct mb_cache *, struct buffer_head *);
+static void ext4_xattr_cache_insert(struct inode *, struct buffer_head *);
static struct buffer_head *ext4_xattr_cache_find(struct inode *,
struct ext4_xattr_header *,
struct mb_cache_entry **);
@@ -278,7 +278,6 @@ ext4_xattr_block_get(struct inode *inode, int name_index, const char *name,
struct ext4_xattr_entry *entry;
size_t size;
int error;
- struct mb_cache *ext4_mb_cache = EXT4_GET_MB_CACHE(inode);
ea_idebug(inode, "name=%d.%s, buffer=%p, buffer_size=%ld",
name_index, name, buffer, (long)buffer_size);
@@ -300,7 +299,7 @@ bad_block:
error = -EIO;
goto cleanup;
}
- ext4_xattr_cache_insert(ext4_mb_cache, bh);
+ ext4_xattr_cache_insert(inode, bh);
entry = BFIRST(bh);
error = ext4_xattr_find_entry(&entry, name_index, name, bh->b_size, 1);
if (error == -EIO)
@@ -426,7 +425,6 @@ ext4_xattr_block_list(struct dentry *dentry, char *buffer, size_t buffer_size)
struct inode *inode = d_inode(dentry);
struct buffer_head *bh = NULL;
int error;
- struct mb_cache *ext4_mb_cache = EXT4_GET_MB_CACHE(inode);
ea_idebug(inode, "buffer=%p, buffer_size=%ld",
buffer, (long)buffer_size);
@@ -448,7 +446,7 @@ ext4_xattr_block_list(struct dentry *dentry, char *buffer, size_t buffer_size)
error = -EIO;
goto cleanup;
}
- ext4_xattr_cache_insert(ext4_mb_cache, bh);
+ ext4_xattr_cache_insert(inode, bh);
error = ext4_xattr_list_entries(dentry, BFIRST(bh), buffer, buffer_size);
cleanup:
@@ -547,7 +545,8 @@ ext4_xattr_release_block(handle_t *handle, struct inode *inode,
int error = 0;
struct mb_cache *ext4_mb_cache = EXT4_GET_MB_CACHE(inode);
- ce = mb_cache_entry_get(ext4_mb_cache, bh->b_bdev, bh->b_blocknr);
+ if (!test_opt(inode->i_sb, NO_MBCACHE))
+ ce = mb_cache_entry_get(ext4_mb_cache, bh->b_bdev, bh->b_blocknr);
BUFFER_TRACE(bh, "get_write_access");
error = ext4_journal_get_write_access(handle, bh);
if (error)
@@ -788,8 +787,9 @@ ext4_xattr_block_set(handle_t *handle, struct inode *inode,
if (i->value && i->value_len > sb->s_blocksize)
return -ENOSPC;
if (s->base) {
- ce = mb_cache_entry_get(ext4_mb_cache, bs->bh->b_bdev,
- bs->bh->b_blocknr);
+ if (!test_opt(inode->i_sb, NO_MBCACHE))
+ ce = mb_cache_entry_get(ext4_mb_cache, bs->bh->b_bdev,
+ bs->bh->b_blocknr);
BUFFER_TRACE(bs->bh, "get_write_access");
error = ext4_journal_get_write_access(handle, bs->bh);
if (error)
@@ -807,7 +807,7 @@ ext4_xattr_block_set(handle_t *handle, struct inode *inode,
if (!IS_LAST_ENTRY(s->first))
ext4_xattr_rehash(header(s->base),
s->here);
- ext4_xattr_cache_insert(ext4_mb_cache,
+ ext4_xattr_cache_insert(inode,
bs->bh);
}
unlock_buffer(bs->bh);
@@ -892,7 +892,8 @@ inserted:
if (error)
goto cleanup_dquot;
}
- mb_cache_entry_release(ce);
+ if (ce)
+ mb_cache_entry_release(ce);
ce = NULL;
} else if (bs->bh && s->base == bs->bh->b_data) {
/* We were modifying this block in-place. */
@@ -939,7 +940,7 @@ getblk_failed:
memcpy(new_bh->b_data, s->base, new_bh->b_size);
set_buffer_uptodate(new_bh);
unlock_buffer(new_bh);
- ext4_xattr_cache_insert(ext4_mb_cache, new_bh);
+ ext4_xattr_cache_insert(inode, new_bh);
error = ext4_handle_dirty_xattr_block(handle,
inode, new_bh);
if (error)
@@ -1529,12 +1530,17 @@ ext4_xattr_put_super(struct super_block *sb)
* Returns 0, or a negative error number on failure.
*/
static void
-ext4_xattr_cache_insert(struct mb_cache *ext4_mb_cache, struct buffer_head *bh)
+ext4_xattr_cache_insert(struct inode *inode, struct buffer_head *bh)
{
+ struct super_block *sb = inode->i_sb;
+ struct mb_cache *ext4_mb_cache = EXT4_GET_MB_CACHE(inode);
__u32 hash = le32_to_cpu(BHDR(bh)->h_hash);
struct mb_cache_entry *ce;
int error;
+ if (test_opt(sb, NO_MBCACHE))
+ return;
+
ce = mb_cache_entry_alloc(ext4_mb_cache, GFP_NOFS);
if (!ce) {
ea_bdebug(bh, "out of memory");
@@ -1609,6 +1615,8 @@ ext4_xattr_cache_find(struct inode *inode, struct ext4_xattr_header *header,
struct mb_cache_entry *ce;
struct mb_cache *ext4_mb_cache = EXT4_GET_MB_CACHE(inode);
+ if (test_opt(inode->i_sb, NO_MBCACHE))
+ return NULL;
if (!header->h_hash)
return NULL; /* never share */
ea_idebug(inode, "looking for cached blocks [%x]", (int)hash);
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-30 02:55:57 +0000