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Commit 0220edda authored by Deepa Dinamani's avatar Deepa Dinamani
Browse files

udf: Simplify calls to udf_disk_stamp_to_time 



Subsequent patches in the series convert inode timestamps
to use struct timespec64 instead of struct timespec as
part of solving the y2038 problem.

commit fd3cfad3 ("udf: Convert udf_disk_stamp_to_time() to use mktime64()")
eliminated the NULL return condition from udf_disk_stamp_to_time().
udf_time_to_disk_time() is always called with a valid dest pointer and
the return value is ignored.
Further, caller can as well check the dest pointer being passed in rather
than return argument.
Make both the functions return void.

This will make the inode timestamp conversion simpler.

Signed-off-by: default avatarDeepa Dinamani <deepa.kernel@gmail.com>
Cc: jack@suse.com

----
Changes from v1:
* fixed the pointer error pointed by Jan
parent 0a2dfbec

fs/udf/inode.c

+7 −21
Original line number Diff line number Diff line
@@ -1443,15 +1443,9 @@ static int udf_read_inode(struct inode *inode, bool hidden_inode) 
		inode->i_blocks = le64_to_cpu(fe->logicalBlocksRecorded) <<

			(inode->i_sb->s_blocksize_bits - 9);



		if (!udf_disk_stamp_to_time(&inode->i_atime, fe->accessTime))

			inode->i_atime = sbi->s_record_time;



		if (!udf_disk_stamp_to_time(&inode->i_mtime,

					    fe->modificationTime))

			inode->i_mtime = sbi->s_record_time;



		if (!udf_disk_stamp_to_time(&inode->i_ctime, fe->attrTime))

			inode->i_ctime = sbi->s_record_time;

		udf_disk_stamp_to_time(&inode->i_atime, fe->accessTime);

		udf_disk_stamp_to_time(&inode->i_mtime, fe->modificationTime);

		udf_disk_stamp_to_time(&inode->i_ctime, fe->attrTime);



		iinfo->i_unique = le64_to_cpu(fe->uniqueID);

		iinfo->i_lenEAttr = le32_to_cpu(fe->lengthExtendedAttr);
@@ -1461,18 +1455,10 @@ static int udf_read_inode(struct inode *inode, bool hidden_inode) 
		inode->i_blocks = le64_to_cpu(efe->logicalBlocksRecorded) <<

		    (inode->i_sb->s_blocksize_bits - 9);



		if (!udf_disk_stamp_to_time(&inode->i_atime, efe->accessTime))

			inode->i_atime = sbi->s_record_time;



		if (!udf_disk_stamp_to_time(&inode->i_mtime,

					    efe->modificationTime))

			inode->i_mtime = sbi->s_record_time;



		if (!udf_disk_stamp_to_time(&iinfo->i_crtime, efe->createTime))

			iinfo->i_crtime = sbi->s_record_time;



		if (!udf_disk_stamp_to_time(&inode->i_ctime, efe->attrTime))

			inode->i_ctime = sbi->s_record_time;

		udf_disk_stamp_to_time(&inode->i_atime, efe->accessTime);

		udf_disk_stamp_to_time(&inode->i_mtime, efe->modificationTime);

		udf_disk_stamp_to_time(&iinfo->i_crtime, efe->createTime);

		udf_disk_stamp_to_time(&inode->i_ctime, efe->attrTime);



		iinfo->i_unique = le64_to_cpu(efe->uniqueID);

		iinfo->i_lenEAttr = le32_to_cpu(efe->lengthExtendedAttr);

fs/udf/super.c

+10 −7
Original line number Diff line number Diff line
@@ -864,6 +864,9 @@ static int udf_load_pvoldesc(struct super_block *sb, sector_t block) 
	struct buffer_head *bh;

	uint16_t ident;

	int ret = -ENOMEM;

#ifdef UDFFS_DEBUG

	struct timestamp *ts;

#endif



	outstr = kmalloc(128, GFP_NOFS);

	if (!outstr)
@@ -882,15 +885,15 @@ static int udf_load_pvoldesc(struct super_block *sb, sector_t block) 


	pvoldesc = (struct primaryVolDesc *)bh->b_data;



	if (udf_disk_stamp_to_time(&UDF_SB(sb)->s_record_time,

			      pvoldesc->recordingDateAndTime)) {

	udf_disk_stamp_to_time(&UDF_SB(sb)->s_record_time,

			      pvoldesc->recordingDateAndTime);

#ifdef UDFFS_DEBUG

		struct timestamp *ts = &pvoldesc->recordingDateAndTime;

	ts = &pvoldesc->recordingDateAndTime;

	udf_debug("recording time %04u/%02u/%02u %02u:%02u (%x)\n",

		  le16_to_cpu(ts->year), ts->month, ts->day, ts->hour,

		  ts->minute, le16_to_cpu(ts->typeAndTimezone));

#endif

	}





	ret = udf_dstrCS0toUTF8(outstr, 31, pvoldesc->volIdent, 32);

	if (ret < 0)

fs/udf/udfdecl.h

+2 −2
Original line number Diff line number Diff line
@@ -252,8 +252,8 @@ extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int); 
extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int);



/* udftime.c */

extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest,

extern void udf_disk_stamp_to_time(struct timespec *dest,

						struct timestamp src);

extern struct timestamp *udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src);

extern void udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src);



#endif				/* __UDF_DECL_H */

fs/udf/udftime.c

+2 −7
Original line number Diff line number Diff line
@@ -40,7 +40,7 @@ 
#include <linux/kernel.h>

#include <linux/time.h>



struct timespec *

void

udf_disk_stamp_to_time(struct timespec *dest, struct timestamp src)

{

	u16 typeAndTimezone = le16_to_cpu(src.typeAndTimezone);
@@ -67,10 +67,9 @@ udf_disk_stamp_to_time(struct timespec *dest, struct timestamp src) 
	 * recorded with bogus sub-second values.

	 */

	dest->tv_nsec %= NSEC_PER_SEC;

	return dest;

}



struct timestamp *

void

udf_time_to_disk_stamp(struct timestamp *dest, struct timespec ts)

{

	long seconds;
@@ -79,9 +78,6 @@ udf_time_to_disk_stamp(struct timestamp *dest, struct timespec ts) 


	offset = -sys_tz.tz_minuteswest;



	if (!dest)

		return NULL;



	dest->typeAndTimezone = cpu_to_le16(0x1000 | (offset & 0x0FFF));



	seconds = ts.tv_sec + offset * 60;
@@ -97,7 +93,6 @@ udf_time_to_disk_stamp(struct timestamp *dest, struct timespec ts) 
					dest->centiseconds * 10000) / 100;

	dest->microseconds = (ts.tv_nsec / 1000 - dest->centiseconds * 10000 -

			      dest->hundredsOfMicroseconds * 100);

	return dest;

}



/* EOF */