static int fanotify_merge(struct list_head *list, struct fsnotify_event *event)
{
struct fsnotify_event *test_event;
- bool do_merge = false;
pr_debug("%s: list=%p event=%p\n", __func__, list, event);
list_for_each_entry_reverse(test_event, list, list) {
if (should_merge(test_event, event)) {
- do_merge = true;
- break;
+ test_event->mask |= event->mask;
+ return 1;
}
}
- if (!do_merge)
- return 0;
-
- test_event->mask |= event->mask;
- return 1;
+ return 0;
}
#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
struct charspec {
uint8_t charSetType;
uint8_t charSetInfo[63];
-} __attribute__ ((packed));
+} __packed;
/* Character Set Type (ECMA 167r3 1/7.2.1.1) */
#define CHARSPEC_TYPE_CS0 0x00 /* (1/7.2.2) */
uint8_t centiseconds;
uint8_t hundredsOfMicroseconds;
uint8_t microseconds;
-} __attribute__ ((packed));
+} __packed;
/* Type and Time Zone (ECMA 167r3 1/7.3.1) */
#define TIMESTAMP_TYPE_MASK 0xF000
uint8_t flags;
uint8_t ident[23];
uint8_t identSuffix[8];
-} __attribute__ ((packed));
+} __packed;
/* Flags (ECMA 167r3 1/7.4.1) */
#define ENTITYID_FLAGS_DIRTY 0x00
uint8_t stdIdent[VSD_STD_ID_LEN];
uint8_t structVersion;
uint8_t structData[2041];
-} __attribute__ ((packed));
+} __packed;
/* Standard Identifier (EMCA 167r2 2/9.1.2) */
#define VSD_STD_ID_NSR02 "NSR02" /* (3/9.1) */
uint8_t stdIdent[VSD_STD_ID_LEN];
uint8_t structVersion;
uint8_t structData[2041];
-} __attribute__ ((packed));
+} __packed;
/* Terminating Extended Area Descriptor (ECMA 167r3 2/9.3) */
struct terminatingExtendedAreaDesc {
uint8_t stdIdent[VSD_STD_ID_LEN];
uint8_t structVersion;
uint8_t structData[2041];
-} __attribute__ ((packed));
+} __packed;
/* Boot Descriptor (ECMA 167r3 2/9.4) */
struct bootDesc {
__le16 flags;
uint8_t reserved2[32];
uint8_t bootUse[1906];
-} __attribute__ ((packed));
+} __packed;
/* Flags (ECMA 167r3 2/9.4.12) */
#define BOOT_FLAGS_ERASE 0x01
struct extent_ad {
__le32 extLength;
__le32 extLocation;
-} __attribute__ ((packed));
+} __packed;
struct kernel_extent_ad {
uint32_t extLength;
__le16 descCRC;
__le16 descCRCLength;
__le32 tagLocation;
-} __attribute__ ((packed));
+} __packed;
/* Tag Identifier (ECMA 167r3 3/7.2.1) */
#define TAG_IDENT_PVD 0x0001
uint8_t structVersion;
uint8_t reserved;
uint8_t structData[2040];
-} __attribute__ ((packed));
+} __packed;
/* Primary Volume Descriptor (ECMA 167r3 3/10.1) */
struct primaryVolDesc {
__le32 predecessorVolDescSeqLocation;
__le16 flags;
uint8_t reserved[22];
-} __attribute__ ((packed));
+} __packed;
/* Flags (ECMA 167r3 3/10.1.21) */
#define PVD_FLAGS_VSID_COMMON 0x0001
struct extent_ad mainVolDescSeqExt;
struct extent_ad reserveVolDescSeqExt;
uint8_t reserved[480];
-} __attribute__ ((packed));
+} __packed;
/* Volume Descriptor Pointer (ECMA 167r3 3/10.3) */
struct volDescPtr {
__le32 volDescSeqNum;
struct extent_ad nextVolDescSeqExt;
uint8_t reserved[484];
-} __attribute__ ((packed));
+} __packed;
/* Implementation Use Volume Descriptor (ECMA 167r3 3/10.4) */
struct impUseVolDesc {
__le32 volDescSeqNum;
struct regid impIdent;
uint8_t impUse[460];
-} __attribute__ ((packed));
+} __packed;
/* Partition Descriptor (ECMA 167r3 3/10.5) */
struct partitionDesc {
struct regid impIdent;
uint8_t impUse[128];
uint8_t reserved[156];
-} __attribute__ ((packed));
+} __packed;
/* Partition Flags (ECMA 167r3 3/10.5.3) */
#define PD_PARTITION_FLAGS_ALLOC 0x0001
uint8_t impUse[128];
struct extent_ad integritySeqExt;
uint8_t partitionMaps[0];
-} __attribute__ ((packed));
+} __packed;
/* Generic Partition Map (ECMA 167r3 3/10.7.1) */
struct genericPartitionMap {
uint8_t partitionMapType;
uint8_t partitionMapLength;
uint8_t partitionMapping[0];
-} __attribute__ ((packed));
+} __packed;
/* Partition Map Type (ECMA 167r3 3/10.7.1.1) */
#define GP_PARTITION_MAP_TYPE_UNDEF 0x00
uint8_t partitionMapLength;
__le16 volSeqNum;
__le16 partitionNum;
-} __attribute__ ((packed));
+} __packed;
/* Type 2 Partition Map (ECMA 167r3 3/10.7.3) */
struct genericPartitionMap2 {
uint8_t partitionMapType;
uint8_t partitionMapLength;
uint8_t partitionIdent[62];
-} __attribute__ ((packed));
+} __packed;
/* Unallocated Space Descriptor (ECMA 167r3 3/10.8) */
struct unallocSpaceDesc {
__le32 volDescSeqNum;
__le32 numAllocDescs;
struct extent_ad allocDescs[0];
-} __attribute__ ((packed));
+} __packed;
/* Terminating Descriptor (ECMA 167r3 3/10.9) */
struct terminatingDesc {
struct tag descTag;
uint8_t reserved[496];
-} __attribute__ ((packed));
+} __packed;
/* Logical Volume Integrity Descriptor (ECMA 167r3 3/10.10) */
struct logicalVolIntegrityDesc {
__le32 freeSpaceTable[0];
__le32 sizeTable[0];
uint8_t impUse[0];
-} __attribute__ ((packed));
+} __packed;
/* Integrity Type (ECMA 167r3 3/10.10.3) */
#define LVID_INTEGRITY_TYPE_OPEN 0x00000000
struct lb_addr {
__le32 logicalBlockNum;
__le16 partitionReferenceNum;
-} __attribute__ ((packed));
+} __packed;
/* ... and its in-core analog */
struct kernel_lb_addr {
struct short_ad {
__le32 extLength;
__le32 extPosition;
-} __attribute__ ((packed));
+} __packed;
/* Long Allocation Descriptor (ECMA 167r3 4/14.14.2) */
struct long_ad {
__le32 extLength;
struct lb_addr extLocation;
uint8_t impUse[6];
-} __attribute__ ((packed));
+} __packed;
struct kernel_long_ad {
uint32_t extLength;
__le32 recordedLength;
__le32 informationLength;
struct lb_addr extLocation;
-} __attribute__ ((packed));
+} __packed;
struct kernel_ext_ad {
uint32_t extLength;
struct long_ad nextExt;
struct long_ad streamDirectoryICB;
uint8_t reserved[32];
-} __attribute__ ((packed));
+} __packed;
/* Partition Header Descriptor (ECMA 167r3 4/14.3) */
struct partitionHeaderDesc {
struct short_ad freedSpaceTable;
struct short_ad freedSpaceBitmap;
uint8_t reserved[88];
-} __attribute__ ((packed));
+} __packed;
/* File Identifier Descriptor (ECMA 167r3 4/14.4) */
struct fileIdentDesc {
uint8_t impUse[0];
uint8_t fileIdent[0];
uint8_t padding[0];
-} __attribute__ ((packed));
+} __packed;
/* File Characteristics (ECMA 167r3 4/14.4.3) */
#define FID_FILE_CHAR_HIDDEN 0x01
struct tag descTag;
__le32 previousAllocExtLocation;
__le32 lengthAllocDescs;
-} __attribute__ ((packed));
+} __packed;
/* ICB Tag (ECMA 167r3 4/14.6) */
struct icbtag {
uint8_t fileType;
struct lb_addr parentICBLocation;
__le16 flags;
-} __attribute__ ((packed));
+} __packed;
/* Strategy Type (ECMA 167r3 4/14.6.2) */
#define ICBTAG_STRATEGY_TYPE_UNDEF 0x0000
struct tag descTag;
struct icbtag icbTag;
struct long_ad indirectICB;
-} __attribute__ ((packed));
+} __packed;
/* Terminal Entry (ECMA 167r3 4/14.8) */
struct terminalEntry {
struct tag descTag;
struct icbtag icbTag;
-} __attribute__ ((packed));
+} __packed;
/* File Entry (ECMA 167r3 4/14.9) */
struct fileEntry {
__le32 lengthAllocDescs;
uint8_t extendedAttr[0];
uint8_t allocDescs[0];
-} __attribute__ ((packed));
+} __packed;
/* Permissions (ECMA 167r3 4/14.9.5) */
#define FE_PERM_O_EXEC 0x00000001U
struct tag descTag;
__le32 impAttrLocation;
__le32 appAttrLocation;
-} __attribute__ ((packed));
+} __packed;
/* Generic Format (ECMA 167r3 4/14.10.2) */
struct genericFormat {
uint8_t reserved[3];
__le32 attrLength;
uint8_t attrData[0];
-} __attribute__ ((packed));
+} __packed;
/* Character Set Information (ECMA 167r3 4/14.10.3) */
struct charSetInfo {
__le32 escapeSeqLength;
uint8_t charSetType;
uint8_t escapeSeq[0];
-} __attribute__ ((packed));
+} __packed;
/* Alternate Permissions (ECMA 167r3 4/14.10.4) */
struct altPerms {
__le16 ownerIdent;
__le16 groupIdent;
__le16 permission;
-} __attribute__ ((packed));
+} __packed;
/* File Times Extended Attribute (ECMA 167r3 4/14.10.5) */
struct fileTimesExtAttr {
__le32 dataLength;
__le32 fileTimeExistence;
uint8_t fileTimes;
-} __attribute__ ((packed));
+} __packed;
/* FileTimeExistence (ECMA 167r3 4/14.10.5.6) */
#define FTE_CREATION 0x00000001
__le32 dataLength;
__le32 infoTimeExistence;
uint8_t infoTimes[0];
-} __attribute__ ((packed));
+} __packed;
/* Device Specification (ECMA 167r3 4/14.10.7) */
struct deviceSpec {
__le32 majorDeviceIdent;
__le32 minorDeviceIdent;
uint8_t impUse[0];
-} __attribute__ ((packed));
+} __packed;
/* Implementation Use Extended Attr (ECMA 167r3 4/14.10.8) */
struct impUseExtAttr {
__le32 impUseLength;
struct regid impIdent;
uint8_t impUse[0];
-} __attribute__ ((packed));
+} __packed;
/* Application Use Extended Attribute (ECMA 167r3 4/14.10.9) */
struct appUseExtAttr {
__le32 appUseLength;
struct regid appIdent;
uint8_t appUse[0];
-} __attribute__ ((packed));
+} __packed;
#define EXTATTR_CHAR_SET 1
#define EXTATTR_ALT_PERMS 3
struct icbtag icbTag;
__le32 lengthAllocDescs;
uint8_t allocDescs[0];
-} __attribute__ ((packed));
+} __packed;
/* Space Bitmap Descriptor (ECMA 167r3 4/14.12) */
struct spaceBitmapDesc {
__le32 numOfBits;
__le32 numOfBytes;
uint8_t bitmap[0];
-} __attribute__ ((packed));
+} __packed;
/* Partition Integrity Entry (ECMA 167r3 4/14.13) */
struct partitionIntegrityEntry {
uint8_t reserved[175];
struct regid impIdent;
uint8_t impUse[256];
-} __attribute__ ((packed));
+} __packed;
/* Short Allocation Descriptor (ECMA 167r3 4/14.14.1) */
struct logicalVolHeaderDesc {
__le64 uniqueID;
uint8_t reserved[24];
-} __attribute__ ((packed));
+} __packed;
/* Path Component (ECMA 167r3 4/14.16.1) */
struct pathComponent {
uint8_t lengthComponentIdent;
__le16 componentFileVersionNum;
dstring componentIdent[0];
-} __attribute__ ((packed));
+} __packed;
/* File Entry (ECMA 167r3 4/14.17) */
struct extendedFileEntry {
__le32 lengthAllocDescs;
uint8_t extendedAttr[0];
uint8_t allocDescs[0];
-} __attribute__ ((packed));
+} __packed;
#endif /* _ECMA_167_H */
{
struct inode *inode = file_inode(filp);
long old_block, new_block;
- int result = -EINVAL;
+ int result;
if (inode_permission(inode, MAY_READ) != 0) {
udf_debug("no permission to access inode %lu\n", inode->i_ino);
- result = -EPERM;
- goto out;
+ return -EPERM;
}
- if (!arg) {
+ if (!arg && ((cmd == UDF_GETVOLIDENT) || (cmd == UDF_GETEASIZE) ||
+ (cmd == UDF_RELOCATE_BLOCKS) || (cmd == UDF_GETEABLOCK))) {
udf_debug("invalid argument to udf_ioctl\n");
- result = -EINVAL;
- goto out;
+ return -EINVAL;
}
switch (cmd) {
case UDF_GETVOLIDENT:
if (copy_to_user((char __user *)arg,
UDF_SB(inode->i_sb)->s_volume_ident, 32))
- result = -EFAULT;
- else
- result = 0;
- goto out;
+ return -EFAULT;
+ return 0;
case UDF_RELOCATE_BLOCKS:
- if (!capable(CAP_SYS_ADMIN)) {
- result = -EPERM;
- goto out;
- }
- if (get_user(old_block, (long __user *)arg)) {
- result = -EFAULT;
- goto out;
- }
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ if (get_user(old_block, (long __user *)arg))
+ return -EFAULT;
result = udf_relocate_blocks(inode->i_sb,
old_block, &new_block);
if (result == 0)
result = put_user(new_block, (long __user *)arg);
- goto out;
+ return result;
case UDF_GETEASIZE:
- result = put_user(UDF_I(inode)->i_lenEAttr, (int __user *)arg);
- goto out;
+ return put_user(UDF_I(inode)->i_lenEAttr, (int __user *)arg);
case UDF_GETEABLOCK:
- result = copy_to_user((char __user *)arg,
- UDF_I(inode)->i_ext.i_data,
- UDF_I(inode)->i_lenEAttr) ? -EFAULT : 0;
- goto out;
+ return copy_to_user((char __user *)arg,
+ UDF_I(inode)->i_ext.i_data,
+ UDF_I(inode)->i_lenEAttr) ? -EFAULT : 0;
+ default:
+ return -ENOIOCTLCMD;
}
-out:
- return result;
+ return 0;
}
static int udf_release_file(struct inode *inode, struct file *filp)
#include "udf_i.h"
#include "udf_sb.h"
-MODULE_AUTHOR("Ben Fennema");
-MODULE_DESCRIPTION("Universal Disk Format Filesystem");
-MODULE_LICENSE("GPL");
-
#define EXTENT_MERGE_SIZE 5
static umode_t udf_convert_permissions(struct fileEntry *);
static int8_t udf_insert_aext(struct inode *, struct extent_position,
struct kernel_lb_addr, uint32_t);
static void udf_split_extents(struct inode *, int *, int, int,
- struct kernel_long_ad[EXTENT_MERGE_SIZE], int *);
+ struct kernel_long_ad *, int *);
static void udf_prealloc_extents(struct inode *, int, int,
- struct kernel_long_ad[EXTENT_MERGE_SIZE], int *);
-static void udf_merge_extents(struct inode *,
- struct kernel_long_ad[EXTENT_MERGE_SIZE], int *);
-static void udf_update_extents(struct inode *,
- struct kernel_long_ad[EXTENT_MERGE_SIZE], int, int,
- struct extent_position *);
+ struct kernel_long_ad *, int *);
+static void udf_merge_extents(struct inode *, struct kernel_long_ad *, int *);
+static void udf_update_extents(struct inode *, struct kernel_long_ad *, int,
+ int, struct extent_position *);
static int udf_get_block(struct inode *, sector_t, struct buffer_head *, int);
static void __udf_clear_extent_cache(struct inode *inode)
/* Add extent to extent cache */
static void udf_update_extent_cache(struct inode *inode, loff_t estart,
- struct extent_position *pos, int next_epos)
+ struct extent_position *pos)
{
struct udf_inode_info *iinfo = UDF_I(inode);
__udf_clear_extent_cache(inode);
if (pos->bh)
get_bh(pos->bh);
- memcpy(&iinfo->cached_extent.epos, pos,
- sizeof(struct extent_position));
+ memcpy(&iinfo->cached_extent.epos, pos, sizeof(struct extent_position));
iinfo->cached_extent.lstart = estart;
- if (next_epos)
- switch (iinfo->i_alloc_type) {
- case ICBTAG_FLAG_AD_SHORT:
- iinfo->cached_extent.epos.offset -=
- sizeof(struct short_ad);
- break;
- case ICBTAG_FLAG_AD_LONG:
- iinfo->cached_extent.epos.offset -=
- sizeof(struct long_ad);
- }
+ switch (iinfo->i_alloc_type) {
+ case ICBTAG_FLAG_AD_SHORT:
+ iinfo->cached_extent.epos.offset -= sizeof(struct short_ad);
+ break;
+ case ICBTAG_FLAG_AD_LONG:
+ iinfo->cached_extent.epos.offset -= sizeof(struct long_ad);
+ break;
+ }
spin_unlock(&iinfo->i_extent_cache_lock);
}
~(inode->i_sb->s_blocksize - 1));
udf_write_aext(inode, &cur_epos, &eloc, elen, 1);
}
- brelse(prev_epos.bh);
- brelse(cur_epos.bh);
- brelse(next_epos.bh);
newblock = udf_get_lb_pblock(inode->i_sb, &eloc, offset);
- return newblock;
+ goto out_free;
}
/* Are we beyond EOF? */
/* Create extents for the hole between EOF and offset */
ret = udf_do_extend_file(inode, &prev_epos, laarr, offset);
if (ret < 0) {
- brelse(prev_epos.bh);
- brelse(cur_epos.bh);
- brelse(next_epos.bh);
*err = ret;
- return 0;
+ newblock = 0;
+ goto out_free;
}
c = 0;
offset = 0;
iinfo->i_location.partitionReferenceNum,
goal, err);
if (!newblocknum) {
- brelse(prev_epos.bh);
- brelse(cur_epos.bh);
- brelse(next_epos.bh);
*err = -ENOSPC;
- return 0;
+ newblock = 0;
+ goto out_free;
}
if (isBeyondEOF)
iinfo->i_lenExtents += inode->i_sb->s_blocksize;
* block */
udf_split_extents(inode, &c, offset, newblocknum, laarr, &endnum);
-#ifdef UDF_PREALLOCATE
/* We preallocate blocks only for regular files. It also makes sense
* for directories but there's a problem when to drop the
* preallocation. We might use some delayed work for that but I feel
* it's overengineering for a filesystem like UDF. */
if (S_ISREG(inode->i_mode))
udf_prealloc_extents(inode, c, lastblock, laarr, &endnum);
-#endif
/* merge any continuous blocks in laarr */
udf_merge_extents(inode, laarr, &endnum);
* the new number of extents is less than the old number */
udf_update_extents(inode, laarr, startnum, endnum, &prev_epos);
- brelse(prev_epos.bh);
- brelse(cur_epos.bh);
- brelse(next_epos.bh);
-
newblock = udf_get_pblock(inode->i_sb, newblocknum,
iinfo->i_location.partitionReferenceNum, 0);
if (!newblock) {
*err = -EIO;
- return 0;
+ goto out_free;
}
*new = 1;
iinfo->i_next_alloc_block = block;
udf_sync_inode(inode);
else
mark_inode_dirty(inode);
-
+out_free:
+ brelse(prev_epos.bh);
+ brelse(cur_epos.bh);
+ brelse(next_epos.bh);
return newblock;
}
static void udf_split_extents(struct inode *inode, int *c, int offset,
- int newblocknum,
- struct kernel_long_ad laarr[EXTENT_MERGE_SIZE],
+ int newblocknum, struct kernel_long_ad *laarr,
int *endnum)
{
unsigned long blocksize = inode->i_sb->s_blocksize;
}
static void udf_prealloc_extents(struct inode *inode, int c, int lastblock,
- struct kernel_long_ad laarr[EXTENT_MERGE_SIZE],
+ struct kernel_long_ad *laarr,
int *endnum)
{
int start, length = 0, currlength = 0, i;
}
}
-static void udf_merge_extents(struct inode *inode,
- struct kernel_long_ad laarr[EXTENT_MERGE_SIZE],
+static void udf_merge_extents(struct inode *inode, struct kernel_long_ad *laarr,
int *endnum)
{
int i;
}
}
-static void udf_update_extents(struct inode *inode,
- struct kernel_long_ad laarr[EXTENT_MERGE_SIZE],
+static void udf_update_extents(struct inode *inode, struct kernel_long_ad *laarr,
int startnum, int endnum,
struct extent_position *epos)
{
int ret = -EIO;
reread:
+ if (iloc->partitionReferenceNum >= sbi->s_partitions) {
+ udf_debug("partition reference: %d > logical volume partitions: %d\n",
+ iloc->partitionReferenceNum, sbi->s_partitions);
+ return -EIO;
+ }
+
if (iloc->logicalBlockNum >=
sbi->s_partmaps[iloc->partitionReferenceNum].s_partition_len) {
udf_debug("block=%d, partition=%d out of range\n",
break;
case ICBTAG_FILE_TYPE_SYMLINK:
inode->i_data.a_ops = &udf_symlink_aops;
- inode->i_op = &page_symlink_inode_operations;
+ inode->i_op = &udf_symlink_inode_operations;
inode_nohighmem(inode);
inode->i_mode = S_IFLNK | S_IRWXUGO;
break;
return udf_update_inode(inode, 1);
}
+static void udf_adjust_time(struct udf_inode_info *iinfo, struct timespec time)
+{
+ if (iinfo->i_crtime.tv_sec > time.tv_sec ||
+ (iinfo->i_crtime.tv_sec == time.tv_sec &&
+ iinfo->i_crtime.tv_nsec > time.tv_nsec))
+ iinfo->i_crtime = time;
+}
+
static int udf_update_inode(struct inode *inode, int do_sync)
{
struct buffer_head *bh = NULL;
efe->objectSize = cpu_to_le64(inode->i_size);
efe->logicalBlocksRecorded = cpu_to_le64(lb_recorded);
- if (iinfo->i_crtime.tv_sec > inode->i_atime.tv_sec ||
- (iinfo->i_crtime.tv_sec == inode->i_atime.tv_sec &&
- iinfo->i_crtime.tv_nsec > inode->i_atime.tv_nsec))
- iinfo->i_crtime = inode->i_atime;
-
- if (iinfo->i_crtime.tv_sec > inode->i_mtime.tv_sec ||
- (iinfo->i_crtime.tv_sec == inode->i_mtime.tv_sec &&
- iinfo->i_crtime.tv_nsec > inode->i_mtime.tv_nsec))
- iinfo->i_crtime = inode->i_mtime;
-
- if (iinfo->i_crtime.tv_sec > inode->i_ctime.tv_sec ||
- (iinfo->i_crtime.tv_sec == inode->i_ctime.tv_sec &&
- iinfo->i_crtime.tv_nsec > inode->i_ctime.tv_nsec))
- iinfo->i_crtime = inode->i_ctime;
+ udf_adjust_time(iinfo, inode->i_atime);
+ udf_adjust_time(iinfo, inode->i_mtime);
+ udf_adjust_time(iinfo, inode->i_ctime);
udf_time_to_disk_stamp(&efe->accessTime, inode->i_atime);
udf_time_to_disk_stamp(&efe->modificationTime, inode->i_mtime);
uint32_t *elen, sector_t *offset)
{
unsigned char blocksize_bits = inode->i_sb->s_blocksize_bits;
- loff_t lbcount = 0, bcount =
- (loff_t) block << blocksize_bits;
+ loff_t lbcount = 0, bcount = (loff_t) block << blocksize_bits;
int8_t etype;
struct udf_inode_info *iinfo;
lbcount += *elen;
} while (lbcount <= bcount);
/* update extent cache */
- udf_update_extent_cache(inode, lbcount - *elen, pos, 1);
+ udf_update_extent_cache(inode, lbcount - *elen, pos);
*offset = (bcount + *elen - lbcount) >> blocksize_bits;
return etype;
*/
if (ioctl_by_bdev(bdev, CDROM_LAST_WRITTEN, (unsigned long) &lblock) ||
lblock == 0)
- lblock = bdev->bd_inode->i_size >> sb->s_blocksize_bits;
+ lblock = i_size_read(bdev->bd_inode) >> sb->s_blocksize_bits;
if (lblock)
return lblock - 1;
iinfo->i_lenEAttr += size;
return (struct genericFormat *)&ea[offset];
}
- if (loc & 0x02)
- ;
return NULL;
}
}
inode->i_data.a_ops = &udf_symlink_aops;
- inode->i_op = &page_symlink_inode_operations;
+ inode->i_op = &udf_symlink_inode_operations;
inode_nohighmem(inode);
if (iinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
uint8_t OSClass;
uint8_t OSIdentifier;
uint8_t reserved[4];
-} __attribute__ ((packed));
+} __packed;
struct impIdentSuffix {
uint8_t OSClass;
uint8_t OSIdentifier;
uint8_t reserved[6];
-} __attribute__ ((packed));
+} __packed;
struct appIdentSuffix {
uint8_t impUse[8];
-} __attribute__ ((packed));
+} __packed;
/* Logical Volume Integrity Descriptor (UDF 2.50 2.2.6) */
/* Implementation Use (UDF 2.50 2.2.6.4) */
__le16 minUDFWriteRev;
__le16 maxUDFWriteRev;
uint8_t impUse[0];
-} __attribute__ ((packed));
+} __packed;
/* Implementation Use Volume Descriptor (UDF 2.50 2.2.7) */
/* Implementation Use (UDF 2.50 2.2.7.2) */
dstring LVInfo3[36];
struct regid impIdent;
uint8_t impUse[128];
-} __attribute__ ((packed));
+} __packed;
struct udfPartitionMap2 {
uint8_t partitionMapType;
struct regid partIdent;
__le16 volSeqNum;
__le16 partitionNum;
-} __attribute__ ((packed));
+} __packed;
/* Virtual Partition Map (UDF 2.50 2.2.8) */
struct virtualPartitionMap {
__le16 volSeqNum;
__le16 partitionNum;
uint8_t reserved2[24];
-} __attribute__ ((packed));
+} __packed;
/* Sparable Partition Map (UDF 2.50 2.2.9) */
struct sparablePartitionMap {
uint8_t reserved2[1];
__le32 sizeSparingTable;
__le32 locSparingTable[4];
-} __attribute__ ((packed));
+} __packed;
/* Metadata Partition Map (UDF 2.4.0 2.2.10) */
struct metadataPartitionMap {
__le16 alignUnitSize;
uint8_t flags;
uint8_t reserved2[5];
-} __attribute__ ((packed));
+} __packed;
/* Virtual Allocation Table (UDF 1.5 2.2.10) */
struct virtualAllocationTable15 {
__le32 VirtualSector[0];
struct regid vatIdent;
__le32 previousVATICBLoc;
-} __attribute__ ((packed));
+} __packed;
#define ICBTAG_FILE_TYPE_VAT15 0x00U
__le16 reserved;
uint8_t impUse[0];
__le32 vatEntry[0];
-} __attribute__ ((packed));
+} __packed;
#define ICBTAG_FILE_TYPE_VAT20 0xF8U
struct sparingEntry {
__le32 origLocation;
__le32 mappedLocation;
-} __attribute__ ((packed));
+} __packed;
struct sparingTable {
struct tag descTag;
__le32 sequenceNum;
struct sparingEntry
mapEntry[0];
-} __attribute__ ((packed));
+} __packed;
/* Metadata File (and Metadata Mirror File) (UDF 2.50 2.2.13.1) */
#define ICBTAG_FILE_TYPE_MAIN 0xFA
struct allocDescImpUse {
__le16 flags;
uint8_t impUse[4];
-} __attribute__ ((packed));
+} __packed;
#define AD_IU_EXT_ERASED 0x0001
struct freeEaSpace {
__le16 headerChecksum;
uint8_t freeEASpace[0];
-} __attribute__ ((packed));
+} __packed;
/* DVD Copyright Management Information (UDF 2.50 3.3.4.5.1.2) */
struct DVDCopyrightImpUse {
uint8_t CGMSInfo;
uint8_t dataType;
uint8_t protectionSystemInfo[4];
-} __attribute__ ((packed));
+} __packed;
/* Application Use Extended Attribute (UDF 2.50 3.3.4.6) */
/* FreeAppEASpace (UDF 2.50 3.3.4.6.1) */
struct freeAppEASpace {
__le16 headerChecksum;
uint8_t freeEASpace[0];
-} __attribute__ ((packed));
+} __packed;
/* UDF Defined System Stream (UDF 2.50 3.3.7) */
#define UDF_ID_UNIQUE_ID "*UDF Unique ID Mapping Data"
destroy_inodecache();
}
-module_init(init_udf_fs)
-module_exit(exit_udf_fs)
-
static int udf_sb_alloc_partition_maps(struct super_block *sb, u32 count)
{
struct udf_sb_info *sbi = UDF_SB(sb);
struct udf_inode_info *vati;
uint32_t pos;
struct virtualAllocationTable20 *vat20;
- sector_t blocks = sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits;
+ sector_t blocks = i_size_read(sb->s_bdev->bd_inode) >>
+ sb->s_blocksize_bits;
udf_find_vat_block(sb, p_index, type1_index, sbi->s_last_block);
if (!sbi->s_vat_inode &&
if (UDF_QUERY_FLAG(sb, UDF_FLAG_VARCONV) &&
udf_fixed_to_variable(block) >=
- sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits)
+ i_size_read(sb->s_bdev->bd_inode) >> sb->s_blocksize_bits)
return -EAGAIN;
bh = udf_read_tagged(sb, block, block, &ident);
last[last_count++] = *lastblock - 152;
for (i = 0; i < last_count; i++) {
- if (last[i] >= sb->s_bdev->bd_inode->i_size >>
+ if (last[i] >= i_size_read(sb->s_bdev->bd_inode) >>
sb->s_blocksize_bits)
continue;
ret = udf_check_anchor_block(sb, last[i], fileset);
if (!nsr_off) {
if (!silent)
udf_warn(sb, "No VRS found\n");
- return 0;
+ return -EINVAL;
}
if (nsr_off == -1)
udf_debug("Failed to read sector at offset %d. "
struct buffer_head *bh = sbi->s_lvid_bh;
struct logicalVolIntegrityDesc *lvid;
struct logicalVolIntegrityDescImpUse *lvidiu;
+ struct timespec ts;
if (!bh)
return;
mutex_lock(&sbi->s_alloc_mutex);
lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
- udf_time_to_disk_stamp(&lvid->recordingDateAndTime,
- CURRENT_TIME);
+ ktime_get_real_ts(&ts);
+ udf_time_to_disk_stamp(&lvid->recordingDateAndTime, ts);
lvid->integrityType = cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN);
lvid->descTag.descCRC = cpu_to_le16(
struct buffer_head *bh = sbi->s_lvid_bh;
struct logicalVolIntegrityDesc *lvid;
struct logicalVolIntegrityDescImpUse *lvidiu;
+ struct timespec ts;
if (!bh)
return;
mutex_lock(&sbi->s_alloc_mutex);
lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
- udf_time_to_disk_stamp(&lvid->recordingDateAndTime, CURRENT_TIME);
+ ktime_get_real_ts(&ts);
+ udf_time_to_disk_stamp(&lvid->recordingDateAndTime, ts);
if (UDF_MAX_WRITE_VERSION > le16_to_cpu(lvidiu->maxUDFWriteRev))
lvidiu->maxUDFWriteRev = cpu_to_le16(UDF_MAX_WRITE_VERSION);
if (sbi->s_udfrev > le16_to_cpu(lvidiu->minUDFReadRev))
ret = udf_load_vrs(sb, &uopt, silent, &fileset);
} else {
uopt.blocksize = bdev_logical_block_size(sb->s_bdev);
- ret = udf_load_vrs(sb, &uopt, silent, &fileset);
- if (ret == -EAGAIN && uopt.blocksize != UDF_DEFAULT_BLOCKSIZE) {
- if (!silent)
- pr_notice("Rescanning with blocksize %d\n",
- UDF_DEFAULT_BLOCKSIZE);
- brelse(sbi->s_lvid_bh);
- sbi->s_lvid_bh = NULL;
- uopt.blocksize = UDF_DEFAULT_BLOCKSIZE;
+ while (uopt.blocksize <= 4096) {
ret = udf_load_vrs(sb, &uopt, silent, &fileset);
+ if (ret < 0) {
+ if (!silent && ret != -EACCES) {
+ pr_notice("Scanning with blocksize %d failed\n",
+ uopt.blocksize);
+ }
+ brelse(sbi->s_lvid_bh);
+ sbi->s_lvid_bh = NULL;
+ /*
+ * EACCES is special - we want to propagate to
+ * upper layers that we cannot handle RW mount.
+ */
+ if (ret == -EACCES)
+ break;
+ } else
+ break;
+
+ uopt.blocksize <<= 1;
}
}
if (ret < 0) {
return accum;
}
+
+MODULE_AUTHOR("Ben Fennema");
+MODULE_DESCRIPTION("Universal Disk Format Filesystem");
+MODULE_LICENSE("GPL");
+module_init(init_udf_fs)
+module_exit(exit_udf_fs)
return err;
}
+static int udf_symlink_getattr(struct vfsmount *mnt, struct dentry *dentry,
+ struct kstat *stat)
+{
+ struct inode *inode = d_backing_inode(dentry);
+ struct page *page;
+
+ generic_fillattr(inode, stat);
+ page = read_mapping_page(inode->i_mapping, 0, NULL);
+ if (IS_ERR(page))
+ return PTR_ERR(page);
+ /*
+ * UDF uses non-trivial encoding of symlinks so i_size does not match
+ * number of characters reported by readlink(2) which apparently some
+ * applications expect. Also POSIX says that "The value returned in the
+ * st_size field shall be the length of the contents of the symbolic
+ * link, and shall not count a trailing null if one is present." So
+ * let's report the length of string returned by readlink(2) for
+ * st_size.
+ */
+ stat->size = strlen(page_address(page));
+ put_page(page);
+
+ return 0;
+}
+
/*
* symlinks can't do much...
*/
const struct address_space_operations udf_symlink_aops = {
.readpage = udf_symlink_filler,
};
+
+const struct inode_operations udf_symlink_inode_operations = {
+ .get_link = page_get_link,
+ .getattr = udf_symlink_getattr,
+};
#include "udfend.h"
#include "udf_i.h"
-#define UDF_PREALLOCATE
#define UDF_DEFAULT_PREALLOC_BLOCKS 8
extern __printf(3, 4) void _udf_err(struct super_block *sb,
extern const struct file_operations udf_dir_operations;
extern const struct inode_operations udf_file_inode_operations;
extern const struct file_operations udf_file_operations;
+extern const struct inode_operations udf_symlink_inode_operations;
extern const struct address_space_operations udf_aops;
extern const struct address_space_operations udf_adinicb_aops;
extern const struct address_space_operations udf_symlink_aops;
projects / mirror_ubuntu-artful-kernel.git / commitdiff