From f3da93105b6963a2be2a56dee27fdc88ac4ad769 Mon Sep 17 00:00:00 2001 From: Jeff Liu Date: Mon, 28 May 2012 23:40:17 +0800 Subject: [PATCH 01/12] quota: fix checkpatch.pl warning by replacing with checkpatch.pl warns: "WARNING: Use #include instead of " Below patch fixes it. Signed-off-by: Jie Liu Signed-off-by: Jan Kara --- fs/quota/dquot.c | 2 +- fs/quota/quota.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index 10cbe841cb7e..0c541dcbdf07 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -78,7 +78,7 @@ #include #include "../internal.h" /* ugh */ -#include +#include /* * There are three quota SMP locks. dq_list_lock protects all lists with quotas diff --git a/fs/quota/quota.c b/fs/quota/quota.c index 9a391204ca27..639782d5a76f 100644 --- a/fs/quota/quota.c +++ b/fs/quota/quota.c @@ -9,7 +9,7 @@ #include #include #include -#include +#include #include #include #include From f007dbf8e51f4a0910194eebc2aa119eb861893e Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Thu, 24 May 2012 12:00:37 -0500 Subject: [PATCH 02/12] ext3: force ro mount if ext3_setup_super() fails If ext3_setup_super() fails i.e. due to a too-high revision, the error is logged in dmesg but the fs is not mounted RO as indicated. Tested by: [164152.114551] EXT3-fs (sdb6): error: revision level too high, forcing read-only mode /dev/sdb6 /mnt/test2 ext3 rw,seclabel,relatime,errors=continue,user_xattr,acl,barrier=1,data=ordered 0 0 ^^ Signed-off-by: Eric Sandeen Reviewed-by: Andreas Dilger Signed-off-by: Jan Kara --- fs/ext3/super.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/ext3/super.c b/fs/ext3/super.c index 8c3a44b7c375..b4e19926f46f 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -2058,7 +2058,8 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent) goto failed_mount3; } - ext3_setup_super (sb, es, sb->s_flags & MS_RDONLY); + if (ext3_setup_super(sb, es, sb->s_flags & MS_RDONLY)) + sb->s_flags |= MS_RDONLY; EXT3_SB(sb)->s_mount_state |= EXT3_ORPHAN_FS; ext3_orphan_cleanup(sb, es); From db8109ef98b5fb7e26e0d265c02f7164b13009d4 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Mon, 4 Jun 2012 14:46:24 +0300 Subject: [PATCH 03/12] udf: stop using s_dirt The UDF file-system does not need the 's_dirt' superblock flag because it does not define the 'write_super()' method. This flag was set to 1 in few places and set to 0 in '->sync_fs()' and was basically useless. Stop using it because it is on its way out. Signed-off-by: Artem Bityutskiy Signed-off-by: Jan Kara --- fs/udf/super.c | 6 ------ fs/udf/udfdecl.h | 1 - 2 files changed, 7 deletions(-) diff --git a/fs/udf/super.c b/fs/udf/super.c index 8d86a8706c0e..e7534fb84c2d 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -1974,7 +1974,6 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent) sb->s_op = &udf_sb_ops; sb->s_export_op = &udf_export_ops; - sb->s_dirt = 0; sb->s_magic = UDF_SUPER_MAGIC; sb->s_time_gran = 1000; @@ -2096,10 +2095,6 @@ void _udf_err(struct super_block *sb, const char *function, struct va_format vaf; va_list args; - /* mark sb error */ - if (!(sb->s_flags & MS_RDONLY)) - sb->s_dirt = 1; - va_start(args, fmt); vaf.fmt = fmt; @@ -2161,7 +2156,6 @@ static int udf_sync_fs(struct super_block *sb, int wait) * the buffer for IO */ mark_buffer_dirty(sbi->s_lvid_bh); - sb->s_dirt = 0; sbi->s_lvid_dirty = 0; } mutex_unlock(&sbi->s_alloc_mutex); diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h index ebe10314e512..de038da6f6bd 100644 --- a/fs/udf/udfdecl.h +++ b/fs/udf/udfdecl.h @@ -129,7 +129,6 @@ static inline void udf_updated_lvid(struct super_block *sb) WARN_ON_ONCE(((struct logicalVolIntegrityDesc *) bh->b_data)->integrityType != cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN)); - sb->s_dirt = 1; UDF_SB(sb)->s_lvid_dirty = 1; } extern u64 lvid_get_unique_id(struct super_block *sb); From a0e589b485cd5e6a74d40d195b3d7de212b4227d Mon Sep 17 00:00:00 2001 From: Ashish Sangwan Date: Tue, 26 Jun 2012 19:33:11 +0530 Subject: [PATCH 04/12] UDF: Remove unnecessary variable "offset" from udf_fill_inode The variable "offset" is not needed. Remove it. Signed-off-by: Ashish Sangwan Signed-off-by: Namjae Jeon Signed-off-by: Jan Kara --- fs/udf/inode.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 873e1bab9c4c..fafaad795cd6 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -1247,7 +1247,6 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh) { struct fileEntry *fe; struct extendedFileEntry *efe; - int offset; struct udf_sb_info *sbi = UDF_SB(inode->i_sb); struct udf_inode_info *iinfo = UDF_I(inode); unsigned int link_count; @@ -1359,7 +1358,6 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh) iinfo->i_lenEAttr = le32_to_cpu(fe->lengthExtendedAttr); iinfo->i_lenAlloc = le32_to_cpu(fe->lengthAllocDescs); iinfo->i_checkpoint = le32_to_cpu(fe->checkpoint); - offset = sizeof(struct fileEntry) + iinfo->i_lenEAttr; } else { inode->i_blocks = le64_to_cpu(efe->logicalBlocksRecorded) << (inode->i_sb->s_blocksize_bits - 9); @@ -1381,8 +1379,6 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh) iinfo->i_lenEAttr = le32_to_cpu(efe->lengthExtendedAttr); iinfo->i_lenAlloc = le32_to_cpu(efe->lengthAllocDescs); iinfo->i_checkpoint = le32_to_cpu(efe->checkpoint); - offset = sizeof(struct extendedFileEntry) + - iinfo->i_lenEAttr; } switch (fe->icbTag.fileType) { From e124a32043416ddefaec3c54cc945b7667c00628 Mon Sep 17 00:00:00 2001 From: Wanlong Gao Date: Thu, 28 Jun 2012 00:49:44 +0800 Subject: [PATCH 05/12] ext2: cleanup the confused goto label Cleanup the confused goto label, since the big lock has been removed. Signed-off-by: Wanlong Gao Signed-off-by: Jan Kara --- fs/ext2/super.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/ext2/super.c b/fs/ext2/super.c index b3621cb7ea31..c8e49794ab5d 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -771,13 +771,13 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent) err = -ENOMEM; sbi = kzalloc(sizeof(*sbi), GFP_KERNEL); if (!sbi) - goto failed_unlock; + goto failed; sbi->s_blockgroup_lock = kzalloc(sizeof(struct blockgroup_lock), GFP_KERNEL); if (!sbi->s_blockgroup_lock) { kfree(sbi); - goto failed_unlock; + goto failed; } sb->s_fs_info = sbi; sbi->s_sb_block = sb_block; @@ -1130,7 +1130,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent) sb->s_fs_info = NULL; kfree(sbi->s_blockgroup_lock); kfree(sbi); -failed_unlock: +failed: return ret; } From bff943af6fe3af022c1c7a22cdb2e18a242eaf35 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 27 Jun 2012 22:27:05 +0200 Subject: [PATCH 06/12] udf: Fix memory leak when mounting When we are mounting filesystem, we can load one partition table before finding out that we cannot complete processing of logical volume descriptor and trying the reserve descriptor. Free the table properly before trying the reserve descriptor. Signed-off-by: Jan Kara --- fs/udf/super.c | 122 ++++++++++++++++++++++++++----------------------- 1 file changed, 64 insertions(+), 58 deletions(-) diff --git a/fs/udf/super.c b/fs/udf/super.c index e7534fb84c2d..8a7583867811 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -252,6 +252,63 @@ static int udf_sb_alloc_partition_maps(struct super_block *sb, u32 count) return 0; } +static void udf_sb_free_bitmap(struct udf_bitmap *bitmap) +{ + int i; + int nr_groups = bitmap->s_nr_groups; + int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * + nr_groups); + + for (i = 0; i < nr_groups; i++) + if (bitmap->s_block_bitmap[i]) + brelse(bitmap->s_block_bitmap[i]); + + if (size <= PAGE_SIZE) + kfree(bitmap); + else + vfree(bitmap); +} + +static void udf_free_partition(struct udf_part_map *map) +{ + int i; + struct udf_meta_data *mdata; + + if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE) + iput(map->s_uspace.s_table); + if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE) + iput(map->s_fspace.s_table); + if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP) + udf_sb_free_bitmap(map->s_uspace.s_bitmap); + if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP) + udf_sb_free_bitmap(map->s_fspace.s_bitmap); + if (map->s_partition_type == UDF_SPARABLE_MAP15) + for (i = 0; i < 4; i++) + brelse(map->s_type_specific.s_sparing.s_spar_map[i]); + else if (map->s_partition_type == UDF_METADATA_MAP25) { + mdata = &map->s_type_specific.s_metadata; + iput(mdata->s_metadata_fe); + mdata->s_metadata_fe = NULL; + + iput(mdata->s_mirror_fe); + mdata->s_mirror_fe = NULL; + + iput(mdata->s_bitmap_fe); + mdata->s_bitmap_fe = NULL; + } +} + +static void udf_sb_free_partitions(struct super_block *sb) +{ + struct udf_sb_info *sbi = UDF_SB(sb); + int i; + + for (i = 0; i < sbi->s_partitions; i++) + udf_free_partition(&sbi->s_partmaps[i]); + kfree(sbi->s_partmaps); + sbi->s_partmaps = NULL; +} + static int udf_show_options(struct seq_file *seq, struct dentry *root) { struct super_block *sb = root->d_sb; @@ -1596,7 +1653,11 @@ static int udf_load_sequence(struct super_block *sb, struct buffer_head *bh, /* responsible for finding the PartitionDesc(s) */ if (!udf_process_sequence(sb, main_s, main_e, fileset)) return 1; - return !udf_process_sequence(sb, reserve_s, reserve_e, fileset); + udf_sb_free_partitions(sb); + if (!udf_process_sequence(sb, reserve_s, reserve_e, fileset)) + return 1; + udf_sb_free_partitions(sb); + return 0; } /* @@ -1861,55 +1922,8 @@ u64 lvid_get_unique_id(struct super_block *sb) return ret; } -static void udf_sb_free_bitmap(struct udf_bitmap *bitmap) -{ - int i; - int nr_groups = bitmap->s_nr_groups; - int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * - nr_groups); - - for (i = 0; i < nr_groups; i++) - if (bitmap->s_block_bitmap[i]) - brelse(bitmap->s_block_bitmap[i]); - - if (size <= PAGE_SIZE) - kfree(bitmap); - else - vfree(bitmap); -} - -static void udf_free_partition(struct udf_part_map *map) -{ - int i; - struct udf_meta_data *mdata; - - if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE) - iput(map->s_uspace.s_table); - if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE) - iput(map->s_fspace.s_table); - if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP) - udf_sb_free_bitmap(map->s_uspace.s_bitmap); - if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP) - udf_sb_free_bitmap(map->s_fspace.s_bitmap); - if (map->s_partition_type == UDF_SPARABLE_MAP15) - for (i = 0; i < 4; i++) - brelse(map->s_type_specific.s_sparing.s_spar_map[i]); - else if (map->s_partition_type == UDF_METADATA_MAP25) { - mdata = &map->s_type_specific.s_metadata; - iput(mdata->s_metadata_fe); - mdata->s_metadata_fe = NULL; - - iput(mdata->s_mirror_fe); - mdata->s_mirror_fe = NULL; - - iput(mdata->s_bitmap_fe); - mdata->s_bitmap_fe = NULL; - } -} - static int udf_fill_super(struct super_block *sb, void *options, int silent) { - int i; int ret; struct inode *inode = NULL; struct udf_options uopt; @@ -2071,9 +2085,6 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent) error_out: if (sbi->s_vat_inode) iput(sbi->s_vat_inode); - if (sbi->s_partitions) - for (i = 0; i < sbi->s_partitions; i++) - udf_free_partition(&sbi->s_partmaps[i]); #ifdef CONFIG_UDF_NLS if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP)) unload_nls(sbi->s_nls_map); @@ -2081,8 +2092,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent) if (!(sb->s_flags & MS_RDONLY)) udf_close_lvid(sb); brelse(sbi->s_lvid_bh); - - kfree(sbi->s_partmaps); + udf_sb_free_partitions(sb); kfree(sbi); sb->s_fs_info = NULL; @@ -2123,16 +2133,12 @@ void _udf_warn(struct super_block *sb, const char *function, static void udf_put_super(struct super_block *sb) { - int i; struct udf_sb_info *sbi; sbi = UDF_SB(sb); if (sbi->s_vat_inode) iput(sbi->s_vat_inode); - if (sbi->s_partitions) - for (i = 0; i < sbi->s_partitions; i++) - udf_free_partition(&sbi->s_partmaps[i]); #ifdef CONFIG_UDF_NLS if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP)) unload_nls(sbi->s_nls_map); @@ -2140,7 +2146,7 @@ static void udf_put_super(struct super_block *sb) if (!(sb->s_flags & MS_RDONLY)) udf_close_lvid(sb); brelse(sbi->s_lvid_bh); - kfree(sbi->s_partmaps); + udf_sb_free_partitions(sb); kfree(sb->s_fs_info); sb->s_fs_info = NULL; } From 17dc59ba418c3d6b0675d5b74d280acab2d4e369 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Mon, 9 Jul 2012 13:24:21 +0200 Subject: [PATCH 07/12] udf: Do not decrement i_blocks when freeing indirect extent block Indirect extent block is not accounted in i_blocks during allocation thus we should not decrement i_blocks when we are freeing such block during truncation. Reported-by: Steve Nickel Signed-off-by: Jan Kara --- fs/udf/truncate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/udf/truncate.c b/fs/udf/truncate.c index 4b98fee8e161..8a9657d7f7c6 100644 --- a/fs/udf/truncate.c +++ b/fs/udf/truncate.c @@ -248,7 +248,7 @@ void udf_truncate_extents(struct inode *inode) /* We managed to free all extents in the * indirect extent - free it too */ BUG_ON(!epos.bh); - udf_free_blocks(sb, inode, &epos.block, + udf_free_blocks(sb, NULL, &epos.block, 0, indirect_ext_len); } else if (!epos.bh) { iinfo->i_lenAlloc = lenalloc; @@ -275,7 +275,7 @@ void udf_truncate_extents(struct inode *inode) if (indirect_ext_len) { BUG_ON(!epos.bh); - udf_free_blocks(sb, inode, &epos.block, 0, indirect_ext_len); + udf_free_blocks(sb, NULL, &epos.block, 0, indirect_ext_len); } else if (!epos.bh) { iinfo->i_lenAlloc = lenalloc; mark_inode_dirty(inode); From 349ecd6a3c0e4f97fa4dc6bd3917455ccc106d23 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Mon, 9 Jul 2012 23:38:36 +0200 Subject: [PATCH 08/12] jbd: Check return value of blkdev_issue_flush() blkdev_issue_flush() can fail. Make sure the error gets properly propagated. Signed-off-by: Jan Kara --- fs/jbd/recovery.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/fs/jbd/recovery.c b/fs/jbd/recovery.c index 008bf062fd26..a748fe21465a 100644 --- a/fs/jbd/recovery.c +++ b/fs/jbd/recovery.c @@ -265,8 +265,11 @@ int journal_recover(journal_t *journal) if (!err) err = err2; /* Flush disk caches to get replayed data on the permanent storage */ - if (journal->j_flags & JFS_BARRIER) - blkdev_issue_flush(journal->j_fs_dev, GFP_KERNEL, NULL); + if (journal->j_flags & JFS_BARRIER) { + err2 = blkdev_issue_flush(journal->j_fs_dev, GFP_KERNEL, NULL); + if (!err) + err = err2; + } return err; } From 44f4f729e7a143b08bd63c33cb78b3181d9f4716 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Mon, 9 Jul 2012 23:40:46 +0200 Subject: [PATCH 09/12] ext3: Check return value of blkdev_issue_flush() blkdev_issue_flush() can fail. Make sure the error gets properly propagated. Signed-off-by: Jan Kara --- fs/ext3/fsync.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/fs/ext3/fsync.c b/fs/ext3/fsync.c index d4dff278cbd8..b31dbd4c46ad 100644 --- a/fs/ext3/fsync.c +++ b/fs/ext3/fsync.c @@ -92,8 +92,13 @@ int ext3_sync_file(struct file *file, loff_t start, loff_t end, int datasync) * disk caches manually so that data really is on persistent * storage */ - if (needs_barrier) - blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL); + if (needs_barrier) { + int err; + + err = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL); + if (!ret) + ret = err; + } out: trace_ext3_sync_file_exit(inode, ret); return ret; From 57b9655d01ef057a523e810d29c37ac09b80eead Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 10 Jul 2012 17:58:04 +0200 Subject: [PATCH 10/12] udf: Improve table length check to avoid possible overflow When a partition table length is corrupted to be close to 1 << 32, the check for its length may overflow on 32-bit systems and we will think the length is valid. Later on the kernel can crash trying to read beyond end of buffer. Fix the check to avoid possible overflow. CC: stable@vger.kernel.org Reported-by: Ben Hutchings Signed-off-by: Jan Kara --- fs/udf/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/udf/super.c b/fs/udf/super.c index 8a7583867811..dcbf98722afc 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -1340,7 +1340,7 @@ static int udf_load_logicalvol(struct super_block *sb, sector_t block, BUG_ON(ident != TAG_IDENT_LVD); lvd = (struct logicalVolDesc *)bh->b_data; table_len = le32_to_cpu(lvd->mapTableLength); - if (sizeof(*lvd) + table_len > sb->s_blocksize) { + if (table_len > sb->s_blocksize - sizeof(*lvd)) { udf_err(sb, "error loading logical volume descriptor: " "Partition table too long (%u > %lu)\n", table_len, sb->s_blocksize - sizeof(*lvd)); From fe685aabf7c8c9f138e5ea900954d295bf229175 Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Thu, 12 Jul 2012 08:46:54 +0200 Subject: [PATCH 11/12] isofs: avoid info leak on export For type 1 the parent_offset member in struct isofs_fid gets copied uninitialized to userland. Fix this by initializing it to 0. Signed-off-by: Mathias Krause Signed-off-by: Jan Kara --- fs/isofs/export.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/isofs/export.c b/fs/isofs/export.c index aa4356d09eee..1d3804492aa7 100644 --- a/fs/isofs/export.c +++ b/fs/isofs/export.c @@ -134,6 +134,7 @@ isofs_export_encode_fh(struct inode *inode, len = 3; fh32[0] = ei->i_iget5_block; fh16[2] = (__u16)ei->i_iget5_offset; /* fh16 [sic] */ + fh16[3] = 0; /* avoid leaking uninitialized data */ fh32[2] = inode->i_generation; if (parent) { struct iso_inode_info *eparent; From 0143fc5e9f6f5aad4764801015bc8d4b4a278200 Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Thu, 12 Jul 2012 08:46:55 +0200 Subject: [PATCH 12/12] udf: avoid info leak on export For type 0x51 the udf.parent_partref member in struct fid gets copied uninitialized to userland. Fix this by initializing it to 0. Signed-off-by: Mathias Krause Signed-off-by: Jan Kara --- fs/udf/namei.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/udf/namei.c b/fs/udf/namei.c index 18024178ac4c..c31deb382afd 100644 --- a/fs/udf/namei.c +++ b/fs/udf/namei.c @@ -1279,6 +1279,7 @@ static int udf_encode_fh(struct inode *inode, __u32 *fh, int *lenp, *lenp = 3; fid->udf.block = location.logicalBlockNum; fid->udf.partref = location.partitionReferenceNum; + fid->udf.parent_partref = 0; fid->udf.generation = inode->i_generation; if (parent) {