Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull UDF fixes and cleanups from Jan Kara:
 "Several small UDF fixes and cleanups and a small cleanup of fanotify
  code"

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  fanotify: simplify the code of fanotify_merge
  udf: simplify udf_ioctl()
  udf: fix ioctl errors
  udf: allow implicit blocksize specification during mount
  udf: check partition reference in udf_read_inode()
  udf: atomically read inode size
  udf: merge module informations in super.c
  udf: remove next_epos from udf_update_extent_cache()
  udf: Factor out trimming of crtime
  udf: remove empty condition
  udf: remove unneeded line break
  udf: merge bh free
  udf: use pointer for kernel_long_ad argument
  udf: use __packed instead of __attribute__ ((packed))
  udf: Make stat on symlink report symlink length as st_size
  fs/udf: make #ifdef UDF_PREALLOCATE unconditional
  fs: udf: Replace CURRENT_TIME with current_time()
This commit is contained in:
Linus Torvalds 2017-02-21 07:44:03 -08:00
commit 70fcf5c339
11 changed files with 205 additions and 193 deletions

View File

@ -31,7 +31,6 @@ static bool should_merge(struct fsnotify_event *old_fsn,
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);
@ -47,16 +46,12 @@ static int fanotify_merge(struct list_head *list, struct fsnotify_event *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

View File

@ -41,7 +41,7 @@
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) */
@ -68,7 +68,7 @@ struct timestamp {
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
@ -82,7 +82,7 @@ struct regid {
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
@ -95,7 +95,7 @@ struct volStructDesc {
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) */
@ -114,7 +114,7 @@ struct beginningExtendedAreaDesc {
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 {
@ -122,7 +122,7 @@ 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 {
@ -140,7 +140,7 @@ 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
@ -149,7 +149,7 @@ struct bootDesc {
struct extent_ad {
__le32 extLength;
__le32 extLocation;
} __attribute__ ((packed));
} __packed;
struct kernel_extent_ad {
uint32_t extLength;
@ -166,7 +166,7 @@ struct tag {
__le16 descCRC;
__le16 descCRCLength;
__le32 tagLocation;
} __attribute__ ((packed));
} __packed;
/* Tag Identifier (ECMA 167r3 3/7.2.1) */
#define TAG_IDENT_PVD 0x0001
@ -186,7 +186,7 @@ struct NSRDesc {
uint8_t structVersion;
uint8_t reserved;
uint8_t structData[2040];
} __attribute__ ((packed));
} __packed;
/* Primary Volume Descriptor (ECMA 167r3 3/10.1) */
struct primaryVolDesc {
@ -212,7 +212,7 @@ 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
@ -223,7 +223,7 @@ struct anchorVolDescPtr {
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 {
@ -231,7 +231,7 @@ 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 {
@ -239,7 +239,7 @@ struct impUseVolDesc {
__le32 volDescSeqNum;
struct regid impIdent;
uint8_t impUse[460];
} __attribute__ ((packed));
} __packed;
/* Partition Descriptor (ECMA 167r3 3/10.5) */
struct partitionDesc {
@ -255,7 +255,7 @@ 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
@ -291,14 +291,14 @@ struct logicalVolDesc {
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
@ -311,14 +311,14 @@ struct genericPartitionMap1 {
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 {
@ -326,13 +326,13 @@ 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 {
@ -346,7 +346,7 @@ 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
@ -356,7 +356,7 @@ struct logicalVolIntegrityDesc {
struct lb_addr {
__le32 logicalBlockNum;
__le16 partitionReferenceNum;
} __attribute__ ((packed));
} __packed;
/* ... and its in-core analog */
struct kernel_lb_addr {
@ -368,14 +368,14 @@ 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;
@ -389,7 +389,7 @@ struct ext_ad {
__le32 recordedLength;
__le32 informationLength;
struct lb_addr extLocation;
} __attribute__ ((packed));
} __packed;
struct kernel_ext_ad {
uint32_t extLength;
@ -434,7 +434,7 @@ struct fileSetDesc {
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 {
@ -444,7 +444,7 @@ 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 {
@ -457,7 +457,7 @@ 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
@ -471,7 +471,7 @@ struct allocExtDesc {
struct tag descTag;
__le32 previousAllocExtLocation;
__le32 lengthAllocDescs;
} __attribute__ ((packed));
} __packed;
/* ICB Tag (ECMA 167r3 4/14.6) */
struct icbtag {
@ -483,7 +483,7 @@ 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
@ -531,13 +531,13 @@ struct indirectEntry {
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 {
@ -563,7 +563,7 @@ 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
@ -607,7 +607,7 @@ struct extendedAttrHeaderDesc {
struct tag descTag;
__le32 impAttrLocation;
__le32 appAttrLocation;
} __attribute__ ((packed));
} __packed;
/* Generic Format (ECMA 167r3 4/14.10.2) */
struct genericFormat {
@ -616,7 +616,7 @@ 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 {
@ -627,7 +627,7 @@ struct charSetInfo {
__le32 escapeSeqLength;
uint8_t charSetType;
uint8_t escapeSeq[0];
} __attribute__ ((packed));
} __packed;
/* Alternate Permissions (ECMA 167r3 4/14.10.4) */
struct altPerms {
@ -638,7 +638,7 @@ struct altPerms {
__le16 ownerIdent;
__le16 groupIdent;
__le16 permission;
} __attribute__ ((packed));
} __packed;
/* File Times Extended Attribute (ECMA 167r3 4/14.10.5) */
struct fileTimesExtAttr {
@ -649,7 +649,7 @@ struct fileTimesExtAttr {
__le32 dataLength;
__le32 fileTimeExistence;
uint8_t fileTimes;
} __attribute__ ((packed));
} __packed;
/* FileTimeExistence (ECMA 167r3 4/14.10.5.6) */
#define FTE_CREATION 0x00000001
@ -666,7 +666,7 @@ struct infoTimesExtAttr {
__le32 dataLength;
__le32 infoTimeExistence;
uint8_t infoTimes[0];
} __attribute__ ((packed));
} __packed;
/* Device Specification (ECMA 167r3 4/14.10.7) */
struct deviceSpec {
@ -678,7 +678,7 @@ 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 {
@ -689,7 +689,7 @@ 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 {
@ -700,7 +700,7 @@ struct appUseExtAttr {
__le32 appUseLength;
struct regid appIdent;
uint8_t appUse[0];
} __attribute__ ((packed));
} __packed;
#define EXTATTR_CHAR_SET 1
#define EXTATTR_ALT_PERMS 3
@ -716,7 +716,7 @@ struct unallocSpaceEntry {
struct icbtag icbTag;
__le32 lengthAllocDescs;
uint8_t allocDescs[0];
} __attribute__ ((packed));
} __packed;
/* Space Bitmap Descriptor (ECMA 167r3 4/14.12) */
struct spaceBitmapDesc {
@ -724,7 +724,7 @@ struct spaceBitmapDesc {
__le32 numOfBits;
__le32 numOfBytes;
uint8_t bitmap[0];
} __attribute__ ((packed));
} __packed;
/* Partition Integrity Entry (ECMA 167r3 4/14.13) */
struct partitionIntegrityEntry {
@ -735,7 +735,7 @@ 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) */
@ -753,7 +753,7 @@ struct partitionIntegrityEntry {
struct logicalVolHeaderDesc {
__le64 uniqueID;
uint8_t reserved[24];
} __attribute__ ((packed));
} __packed;
/* Path Component (ECMA 167r3 4/14.16.1) */
struct pathComponent {
@ -761,7 +761,7 @@ struct pathComponent {
uint8_t lengthComponentIdent;
__le16 componentFileVersionNum;
dstring componentIdent[0];
} __attribute__ ((packed));
} __packed;
/* File Entry (ECMA 167r3 4/14.17) */
struct extendedFileEntry {
@ -791,6 +791,6 @@ struct extendedFileEntry {
__le32 lengthAllocDescs;
uint8_t extendedAttr[0];
uint8_t allocDescs[0];
} __attribute__ ((packed));
} __packed;
#endif /* _ECMA_167_H */

View File

@ -176,54 +176,46 @@ long udf_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
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)

View File

@ -43,10 +43,6 @@
#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 *);
@ -57,14 +53,12 @@ static sector_t inode_getblk(struct inode *, sector_t, int *, int *);
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)
@ -111,7 +105,7 @@ static int udf_read_extent_cache(struct inode *inode, loff_t bcount,
/* 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);
@ -120,19 +114,16 @@ static void udf_update_extent_cache(struct inode *inode, loff_t estart,
__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);
}
@ -747,11 +738,8 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
~(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? */
@ -774,11 +762,9 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
/* 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;
@ -841,11 +827,9 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
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;
@ -857,14 +841,12 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
* 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);
@ -874,15 +856,11 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
* 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;
@ -893,13 +871,15 @@ static sector_t inode_getblk(struct inode *inode, sector_t 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;
@ -963,7 +943,7 @@ static void udf_split_extents(struct inode *inode, int *c, int offset,
}
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;
@ -1058,8 +1038,7 @@ static void udf_prealloc_extents(struct inode *inode, int c, int lastblock,
}
}
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;
@ -1158,8 +1137,7 @@ static void udf_merge_extents(struct inode *inode,
}
}
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)
{
@ -1299,6 +1277,12 @@ static int udf_read_inode(struct inode *inode, bool hidden_inode)
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",
@ -1549,7 +1533,7 @@ reread:
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;
@ -1627,6 +1611,14 @@ static int udf_sync_inode(struct inode *inode)
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;
@ -1753,20 +1745,9 @@ static int udf_update_inode(struct inode *inode, int do_sync)
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);
@ -2286,8 +2267,7 @@ int8_t inode_bmap(struct inode *inode, sector_t block,
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;
@ -2308,7 +2288,7 @@ int8_t inode_bmap(struct inode *inode, sector_t block,
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;

View File

@ -58,7 +58,7 @@ unsigned long udf_get_last_block(struct super_block *sb)
*/
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;

View File

@ -141,8 +141,6 @@ struct genericFormat *udf_add_extendedattr(struct inode *inode, uint32_t size,
iinfo->i_lenEAttr += size;
return (struct genericFormat *)&ea[offset];
}
if (loc & 0x02)
;
return NULL;
}

View File

@ -931,7 +931,7 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
}
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) {

View File

@ -70,17 +70,17 @@ struct UDFIdentSuffix {
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) */
@ -92,7 +92,7 @@ struct logicalVolIntegrityDescImpUse {
__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) */
@ -104,7 +104,7 @@ struct impUseVolDescImpUse {
dstring LVInfo3[36];
struct regid impIdent;
uint8_t impUse[128];
} __attribute__ ((packed));
} __packed;
struct udfPartitionMap2 {
uint8_t partitionMapType;
@ -113,7 +113,7 @@ struct udfPartitionMap2 {
struct regid partIdent;
__le16 volSeqNum;
__le16 partitionNum;
} __attribute__ ((packed));
} __packed;
/* Virtual Partition Map (UDF 2.50 2.2.8) */
struct virtualPartitionMap {
@ -124,7 +124,7 @@ struct virtualPartitionMap {
__le16 volSeqNum;
__le16 partitionNum;
uint8_t reserved2[24];
} __attribute__ ((packed));
} __packed;
/* Sparable Partition Map (UDF 2.50 2.2.9) */
struct sparablePartitionMap {
@ -139,7 +139,7 @@ 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 {
@ -156,14 +156,14 @@ 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
@ -181,7 +181,7 @@ struct virtualAllocationTable20 {
__le16 reserved;
uint8_t impUse[0];
__le32 vatEntry[0];
} __attribute__ ((packed));
} __packed;
#define ICBTAG_FILE_TYPE_VAT20 0xF8U
@ -189,7 +189,7 @@ struct virtualAllocationTable20 {
struct sparingEntry {
__le32 origLocation;
__le32 mappedLocation;
} __attribute__ ((packed));
} __packed;
struct sparingTable {
struct tag descTag;
@ -199,7 +199,7 @@ struct sparingTable {
__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
@ -210,7 +210,7 @@ struct sparingTable {
struct allocDescImpUse {
__le16 flags;
uint8_t impUse[4];
} __attribute__ ((packed));
} __packed;
#define AD_IU_EXT_ERASED 0x0001
@ -222,7 +222,7 @@ struct allocDescImpUse {
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 {
@ -230,14 +230,14 @@ 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"

View File

@ -264,9 +264,6 @@ static void __exit exit_udf_fs(void)
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);
@ -1216,7 +1213,8 @@ static int udf_load_vat(struct super_block *sb, int p_index, int type1_index)
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 &&
@ -1806,7 +1804,7 @@ static int udf_check_anchor_block(struct super_block *sb, sector_t block,
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);
@ -1868,7 +1866,7 @@ static int udf_scan_anchors(struct super_block *sb, sector_t *lastblock,
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);
@ -1957,7 +1955,7 @@ static int udf_load_vrs(struct super_block *sb, struct udf_options *uopt,
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. "
@ -1986,6 +1984,7 @@ static void udf_open_lvid(struct super_block *sb)
struct buffer_head *bh = sbi->s_lvid_bh;
struct logicalVolIntegrityDesc *lvid;
struct logicalVolIntegrityDescImpUse *lvidiu;
struct timespec ts;
if (!bh)
return;
@ -1997,8 +1996,8 @@ static void udf_open_lvid(struct super_block *sb)
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(
@ -2019,6 +2018,7 @@ static void udf_close_lvid(struct super_block *sb)
struct buffer_head *bh = sbi->s_lvid_bh;
struct logicalVolIntegrityDesc *lvid;
struct logicalVolIntegrityDescImpUse *lvidiu;
struct timespec ts;
if (!bh)
return;
@ -2030,7 +2030,8 @@ static void udf_close_lvid(struct super_block *sb)
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))
@ -2158,15 +2159,25 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
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) {
@ -2497,3 +2508,9 @@ static unsigned int udf_count_free(struct super_block *sb)
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)

View File

@ -152,9 +152,39 @@ out_unmap:
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,
};

View File

@ -15,7 +15,6 @@
#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,
@ -85,6 +84,7 @@ extern const struct inode_operations udf_dir_inode_operations;
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;