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[XFS] Allow initial XFS delayed allocation size to be increased beyon…
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…d 64KB.

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

Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
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Nathan Scott authored and Christoph Hellwig committed May 5, 2005
1 parent 5fcbab3 commit 1f443ad
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Showing 2 changed files with 48 additions and 25 deletions.
6 changes: 3 additions & 3 deletions fs/xfs/xfs_mount.h
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Original file line number Diff line number Diff line change
Expand Up @@ -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

/*
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67 changes: 45 additions & 22 deletions fs/xfs/xfs_vfsops.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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 */
Expand All @@ -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(
Expand Down Expand Up @@ -1688,60 +1711,60 @@ 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",
this_char);
this_char);
return EINVAL;
}
args->flags |= XFSMNT_IHASHSIZE;
Expand All @@ -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)) {
Expand All @@ -1766,22 +1789,22 @@ 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);
} else if (!strcmp(this_char, MNTOPT_64BITINODE)) {
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)) {
Expand Down Expand Up @@ -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);
Expand Down

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