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Commit 1f443ad7 authored by Nathan Scott's avatar Nathan Scott Committed by Christoph Hellwig
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[XFS] Allow initial XFS delayed allocation size to be increased beyond 64KB. 



SGI Modid: xfs-linux:xfs-kern:22261a

Signed-off-by: default avatarNathan Scott <nathans@sgi.com>
Signed-off-by: default avatarChristoph Hellwig <hch@sgi.com>
parent 5fcbab35

fs/xfs/xfs_mount.h

+3 −3
Original line number Diff line number Diff line
@@ -428,10 +428,10 @@ typedef struct xfs_mount { 
#define XFS_WRITEIO_LOG_LARGE	16



/*

 * Max and min values for UIO and mount-option defined I/O sizes;

 * min value can't be less than a page.  Currently unused.

 * Max and min values for mount-option defined I/O

 * preallocation sizes.

 */

#define XFS_MAX_IO_LOG		16	/* 64K */

#define XFS_MAX_IO_LOG		30	/* 1G */

#define XFS_MIN_IO_LOG		PAGE_SHIFT



/*

fs/xfs/xfs_vfsops.c

+45 −22
Original line number Diff line number Diff line
@@ -1649,6 +1649,7 @@ xfs_vget( 
#define MNTOPT_SWIDTH	"swidth"	/* data volume stripe width */

#define MNTOPT_NOUUID	"nouuid"	/* ignore filesystem UUID */

#define MNTOPT_MTPT	"mtpt"		/* filesystem mount point */

#define MNTOPT_ALLOCSIZE    "allocsize"    /* preferred allocation size */

#define MNTOPT_IHASHSIZE    "ihashsize"    /* size of inode hash table */

#define MNTOPT_NORECOVERY   "norecovery"   /* don't run XFS recovery */

#define MNTOPT_NOLOGFLUSH   "nologflush"   /* don't hard flush on log writes */
@@ -1657,6 +1658,28 @@ xfs_vget( 
#define MNTOPT_IKEEP	"ikeep"		/* do not free empty inode clusters */

#define MNTOPT_NOIKEEP	"noikeep"	/* free empty inode clusters */



STATIC unsigned long

suffix_strtoul(const char *cp, char **endp, unsigned int base)

{

	int	last, shift_left_factor = 0;

	char	*value = (char *)cp;



	last = strlen(value) - 1;

	if (value[last] == 'K' || value[last] == 'k') {

		shift_left_factor = 10;

		value[last] = '\0';

	}

	if (value[last] == 'M' || value[last] == 'm') {

		shift_left_factor = 20;

		value[last] = '\0';

	}

	if (value[last] == 'G' || value[last] == 'g') {

		shift_left_factor = 30;

		value[last] = '\0';

	}



	return simple_strtoul(cp, endp, base) << shift_left_factor;

}



int

xfs_parseargs(
@@ -1688,56 +1711,56 @@ xfs_parseargs( 
		if (!strcmp(this_char, MNTOPT_LOGBUFS)) {

			if (!value || !*value) {

				printk("XFS: %s option requires an argument\n",

					MNTOPT_LOGBUFS);

					this_char);

				return EINVAL;

			}

			args->logbufs = simple_strtoul(value, &eov, 10);

		} else if (!strcmp(this_char, MNTOPT_LOGBSIZE)) {

			int	last, in_kilobytes = 0;



			if (!value || !*value) {

				printk("XFS: %s option requires an argument\n",

					MNTOPT_LOGBSIZE);

					this_char);

				return EINVAL;

			}

			last = strlen(value) - 1;

			if (value[last] == 'K' || value[last] == 'k') {

				in_kilobytes = 1;

				value[last] = '\0';

			}

			args->logbufsize = simple_strtoul(value, &eov, 10);

			if (in_kilobytes)

				args->logbufsize <<= 10;

			args->logbufsize = suffix_strtoul(value, &eov, 10);

		} else if (!strcmp(this_char, MNTOPT_LOGDEV)) {

			if (!value || !*value) {

				printk("XFS: %s option requires an argument\n",

					MNTOPT_LOGDEV);

					this_char);

				return EINVAL;

			}

			strncpy(args->logname, value, MAXNAMELEN);

		} else if (!strcmp(this_char, MNTOPT_MTPT)) {

			if (!value || !*value) {

				printk("XFS: %s option requires an argument\n",

					MNTOPT_MTPT);

					this_char);

				return EINVAL;

			}

			strncpy(args->mtpt, value, MAXNAMELEN);

		} else if (!strcmp(this_char, MNTOPT_RTDEV)) {

			if (!value || !*value) {

				printk("XFS: %s option requires an argument\n",

					MNTOPT_RTDEV);

					this_char);

				return EINVAL;

			}

			strncpy(args->rtname, value, MAXNAMELEN);

		} else if (!strcmp(this_char, MNTOPT_BIOSIZE)) {

			if (!value || !*value) {

				printk("XFS: %s option requires an argument\n",

					MNTOPT_BIOSIZE); 

					this_char);

				return EINVAL;

			}

			iosize = simple_strtoul(value, &eov, 10);

			args->flags |= XFSMNT_IOSIZE;

			args->iosizelog = (uint8_t) iosize;

		} else if (!strcmp(this_char, MNTOPT_ALLOCSIZE)) {

			if (!value || !*value) {

				printk("XFS: %s option requires an argument\n",

					this_char);

				return EINVAL;

			}

			iosize = suffix_strtoul(value, &eov, 10);

			args->flags |= XFSMNT_IOSIZE;

			args->iosizelog = ffs(iosize) - 1;

		} else if (!strcmp(this_char, MNTOPT_IHASHSIZE)) {

			if (!value || !*value) {

				printk("XFS: %s option requires an argument\n",
@@ -1756,7 +1779,7 @@ xfs_parseargs( 
			args->flags |= XFSMNT_INO64;

#if !XFS_BIG_INUMS

			printk("XFS: %s option not allowed on this system\n",

				MNTOPT_INO64);

				this_char);

			return EINVAL;

#endif

		} else if (!strcmp(this_char, MNTOPT_NOALIGN)) {
@@ -1766,14 +1789,14 @@ xfs_parseargs( 
		} else if (!strcmp(this_char, MNTOPT_SUNIT)) {

			if (!value || !*value) {

				printk("XFS: %s option requires an argument\n",

					MNTOPT_SUNIT);

					this_char);

				return EINVAL;

			}

			dsunit = simple_strtoul(value, &eov, 10);

		} else if (!strcmp(this_char, MNTOPT_SWIDTH)) {

			if (!value || !*value) {

				printk("XFS: %s option requires an argument\n",

					MNTOPT_SWIDTH);

					this_char);

				return EINVAL;

			}

			dswidth = simple_strtoul(value, &eov, 10);
@@ -1781,7 +1804,7 @@ xfs_parseargs( 
			args->flags &= ~XFSMNT_32BITINODES;

#if !XFS_BIG_INUMS

			printk("XFS: %s option not allowed on this system\n",

				MNTOPT_64BITINODE);

				this_char);

			return EINVAL;

#endif

		} else if (!strcmp(this_char, MNTOPT_NOUUID)) {
@@ -1877,7 +1900,7 @@ xfs_showargs( 
		seq_printf(m, "," MNTOPT_IHASHSIZE "=%d", mp->m_ihsize);



	if (mp->m_flags & XFS_MOUNT_DFLT_IOSIZE)

		seq_printf(m, "," MNTOPT_BIOSIZE "=%d", mp->m_writeio_log);

		seq_printf(m, "," MNTOPT_ALLOCSIZE "=%d", 1<<mp->m_writeio_log);



	if (mp->m_logbufs > 0)

		seq_printf(m, "," MNTOPT_LOGBUFS "=%d", mp->m_logbufs);