* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <lnet/lnetctl.h>
#include <lustre_ver.h>
+#ifdef HAVE_SELINUX
+#include <selinux/selinux.h>
+#endif
+
#define MAX_HW_SECTORS_KB_PATH "queue/max_hw_sectors_kb"
#define MAX_SECTORS_KB_PATH "queue/max_sectors_kb"
+#define SCHEDULER_PATH "queue/scheduler"
#define STRIPE_CACHE_SIZE "md/stripe_cache_size"
+#define DEFAULT_SCHEDULER "deadline"
+
extern char *progname;
#define L_BLOCK_SIZE 4096
#define DUMMY_FILE_NAME_LEN 25
#define EXT3_DIRENT_SIZE DUMMY_FILE_NAME_LEN
+/*
+ * Concatenate context of the temporary mount point iff selinux is enabled
+ */
+#ifdef HAVE_SELINUX
+void append_context_for_mount(char *mntpt, struct mkfs_opts *mop)
+{
+ security_context_t fcontext;
+
+ if (getfilecon(mntpt, &fcontext) < 0) {
+ /* Continuing with default behaviour */
+ fprintf(stderr, "%s: Get file context failed : %s\n",
+ progname, strerror(errno));
+ return;
+ }
+
+ if (fcontext != NULL) {
+ strcat(mop->mo_ldd.ldd_mount_opts, ",context=");
+ strcat(mop->mo_ldd.ldd_mount_opts, fcontext);
+ freecon(fcontext);
+ }
+}
+#endif
+
/* Write the server config files */
int ldiskfs_write_ldd(struct mkfs_opts *mop)
{
return errno;
}
+ /*
+ * Append file context to mount options if SE Linux is enabled
+ */
+ #ifdef HAVE_SELINUX
+ if (is_selinux_enabled() > 0)
+ append_context_for_mount(mntpt, mop);
+ #endif
+
dev = mop->mo_device;
if (mop->mo_flags & MO_IS_LOOP)
dev = mop->mo_loopdev;
}
ret = fread(supp_features, 1, sizeof(supp_features) - 1, fp);
supp_features[ret] = '\0';
- fclose(fp);
+ pclose(fp);
}
if (ret > 0 && strstr(supp_features,
strncmp(feature, "-O ", 3) ? feature : feature+3))
append_unique(anchor, ",", "huge_file", NULL, maxbuflen);
/* Enable large block addresses if the LUN is over 2^32 blocks. */
- if (mop->mo_device_sz / (L_BLOCK_SIZE >> 10) >= 0x100002000ULL &&
+ if (mop->mo_device_kb / (L_BLOCK_SIZE >> 10) >= 0x100002000ULL &&
is_e2fsprogs_feature_supp("-O 64bit") == 0)
append_unique(anchor, ",", "64bit", NULL, maxbuflen);
/* Build fs according to type */
int ldiskfs_make_lustre(struct mkfs_opts *mop)
{
- __u64 device_sz = mop->mo_device_sz, block_count = 0;
+ __u64 device_kb = mop->mo_device_kb, block_count = 0;
char mkfs_cmd[PATH_MAX];
char buf[64];
char *start;
size_t maxbuflen;
if (!(mop->mo_flags & MO_IS_LOOP)) {
- mop->mo_device_sz = get_device_size(mop->mo_device);
+ mop->mo_device_kb = get_device_size(mop->mo_device);
- if (mop->mo_device_sz == 0)
+ if (mop->mo_device_kb == 0)
return ENODEV;
/* Compare to real size */
- if (device_sz == 0 || device_sz > mop->mo_device_sz)
- device_sz = mop->mo_device_sz;
+ if (device_kb == 0 || device_kb > mop->mo_device_kb)
+ device_kb = mop->mo_device_kb;
else
- mop->mo_device_sz = device_sz;
+ mop->mo_device_kb = device_kb;
}
- if (mop->mo_device_sz != 0) {
- if (mop->mo_device_sz < 8096){
+ if (mop->mo_device_kb != 0) {
+ if (mop->mo_device_kb < 8096) {
fprintf(stderr, "%s: size of filesystem must be larger "
"than 8MB, but is set to %lldKB\n",
- progname, (long long)mop->mo_device_sz);
+ progname, (long long)mop->mo_device_kb);
return EINVAL;
}
- block_count = mop->mo_device_sz / (L_BLOCK_SIZE >> 10);
+ block_count = mop->mo_device_kb / (L_BLOCK_SIZE >> 10);
/* If the LUN size is just over 2^32 blocks, limit the
* filesystem size to 2^32-1 blocks to avoid problems with
* ldiskfs/mkfs not handling this size. Bug 22906 */
long inode_size = 0;
/* Journal size in MB */
- if (strstr(mop->mo_mkfsopts, "-J") == NULL) {
+ if (strstr(mop->mo_mkfsopts, "-J") == NULL &&
+ device_kb > 1024 * 1024) {
/* Choose our own default journal size */
- long journal_sz = 0, max_sz;
- if (device_sz > 1024 * 1024) /* 1GB */
- journal_sz = (device_sz / 102400) * 4;
- /* cap journal size at 1GB */
- if (journal_sz > 1024L)
- journal_sz = 1024L;
- /* man mkfs.ext3 */
- max_sz = (102400 * L_BLOCK_SIZE) >> 20; /* 400MB */
- if (journal_sz > max_sz)
- journal_sz = max_sz;
- if (journal_sz) {
- sprintf(buf, " -J size=%ld", journal_sz);
+ long journal_mb = 0, max_mb;
+
+ /* cap journal size at 4GB for MDT,
+ * leave it at 400MB for OSTs. */
+ if (IS_MDT(&mop->mo_ldd))
+ max_mb = 4096;
+ else if (IS_OST(&mop->mo_ldd))
+ max_mb = 400;
+ else /* Use mke2fs default size for MGS */
+ max_mb = 0;
+
+ /* Use at most 4% of device for journal */
+ journal_mb = device_kb * 4 / (1024 * 100);
+ if (journal_mb > max_mb)
+ journal_mb = max_mb;
+
+ if (journal_mb) {
+ sprintf(buf, " -J size=%ld", journal_mb);
strscat(mop->mo_mkfsopts, buf,
sizeof(mop->mo_mkfsopts));
}
* this, but it is impossible to know in advance. */
if (IS_OST(&mop->mo_ldd)) {
/* OST > 16TB assume average file size 1MB */
- if (device_sz > (16ULL << 30))
+ if (device_kb > (16ULL << 30))
bytes_per_inode = 1024 * 1024;
/* OST > 4TB assume average file size 512kB */
- else if (device_sz > (4ULL << 30))
+ else if (device_kb > (4ULL << 30))
bytes_per_inode = 512 * 1024;
/* OST > 1TB assume average file size 256kB */
- else if (device_sz > (1ULL << 30))
+ else if (device_kb > (1ULL << 30))
bytes_per_inode = 256 * 1024;
/* OST > 10GB assume average file size 64kB,
* plus a bit so that inodes will fit into a
* 256x flex_bg without overflowing */
- else if (device_sz > (10ULL << 20))
+ else if (device_kb > (10ULL << 20))
bytes_per_inode = 69905;
}
* descriptor blocks, but leave one block for the superblock.
* Only useful for filesystems with < 2^32 blocks due to resize
* limitations. */
- if (IS_OST(&mop->mo_ldd) && mop->mo_device_sz > 100 * 1024 &&
- mop->mo_device_sz * 1024 / L_BLOCK_SIZE <= 0xffffffffULL) {
+ if (IS_OST(&mop->mo_ldd) && mop->mo_device_kb > 100 * 1024 &&
+ mop->mo_device_kb * 1024 / L_BLOCK_SIZE <= 0xffffffffULL) {
unsigned group_blocks = L_BLOCK_SIZE * 8;
unsigned desc_per_block = L_BLOCK_SIZE / 32;
unsigned resize_blks;
return 0;
}
-int read_file(char *path, char *buf, int size)
+int read_file(const char *path, char *buf, int size)
{
FILE *fd;
return 0;
}
-int write_file(char *path, char *buf)
+int write_file(const char *path, const char *buf)
{
FILE *fd;
return 0;
}
+int set_blockdev_scheduler(const char *path, const char *scheduler)
+{
+ char buf[PATH_MAX], *c;
+ int rc;
+
+ /* Before setting the scheduler, we need to check to see if it's
+ * already set to "noop". If it is, we don't want to override
+ * that setting. If it's set to anything other than "noop", set
+ * the scheduler to what has been passed in. */
+
+ rc = read_file(path, buf, sizeof(buf));
+ if (rc) {
+ if (verbose)
+ fprintf(stderr, "%s: cannot open '%s': %s\n",
+ progname, path, strerror(errno));
+ return rc;
+ }
+
+ /* The expected format of buf: noop anticipatory deadline [cfq] */
+ c = strchr(buf, '[');
+
+ /* If c is NULL, the format is not what we expect. Play it safe
+ * and error out. */
+ if (c == NULL) {
+ if (verbose)
+ fprintf(stderr, "%s: cannot parse scheduler "
+ "options for '%s'\n", progname, path);
+ return -EINVAL;
+ }
+
+ if (strncmp(c+1, "noop", 4) == 0)
+ return 0;
+
+ rc = write_file(path, scheduler);
+ if (rc) {
+ if (verbose)
+ fprintf(stderr, "%s: cannot set scheduler on "
+ "'%s': %s\n", progname, path,
+ strerror(errno));
+ return rc;
+ }
+
+ return rc;
+}
+
/* This is to tune the kernel for good SCSI performance.
* For that we set the value of /sys/block/{dev}/queue/max_sectors_kb
* to the value of /sys/block/{dev}/queue/max_hw_sectors_kb */
-int set_blockdev_tunables(char *source, struct mount_opts *mop, int fan_out)
+int set_blockdev_tunables(char *source, struct mount_opts *mop)
{
glob_t glob_info = { 0 };
struct stat stat_buf;
char real_path[PATH_MAX] = {'\0'};
int i, rc = 0;
int major, minor;
+ char *slave = NULL;
if (!source)
return -EINVAL;
chk_major = strtok_r(buf, ":", &savept);
chk_minor = savept;
- if (major == atoi(chk_major) &&minor == atoi(chk_minor))
+ if (chk_major != NULL && major == atoi(chk_major) &&
+ chk_minor != NULL && minor == atoi(chk_minor))
break;
}
}
}
- if (fan_out) {
- char *slave = NULL;
- glob_info.gl_pathc = 0;
- glob_info.gl_offs = 0;
- /* if device is multipath device, tune its slave devices */
- snprintf(real_path, sizeof(real_path), "%s/slaves/*", path);
- rc = glob(real_path, GLOB_NOSORT, NULL, &glob_info);
-
- for (i = 0; rc == 0 && i < glob_info.gl_pathc; i++){
- slave = basename(glob_info.gl_pathv[i]);
- snprintf(real_path, sizeof(real_path), "/dev/%s", slave);
- rc = set_blockdev_tunables(real_path, mop, 0);
- }
+ /* Purposely ignore errors reported from set_blockdev_scheduler.
+ * The worst that will happen is a block device with an "incorrect"
+ * scheduler. */
+ snprintf(real_path, sizeof(real_path), "%s/%s", path, SCHEDULER_PATH);
+ set_blockdev_scheduler(real_path, DEFAULT_SCHEDULER);
+
+ /* if device is multipath device, tune its slave devices */
+ glob_info.gl_pathc = 0;
+ glob_info.gl_offs = 0;
+ snprintf(real_path, sizeof(real_path), "%s/slaves/*", path);
+ rc = glob(real_path, GLOB_NOSORT, NULL, &glob_info);
+
+ for (i = 0; rc == 0 && i < glob_info.gl_pathc; i++) {
+ slave = basename(glob_info.gl_pathv[i]);
+ snprintf(real_path, sizeof(real_path), "/dev/%s", slave);
+ rc = set_blockdev_tunables(real_path, mop);
+ }
- if (rc == GLOB_NOMATCH) {
- /* no slave device is not an error */
- rc = 0;
- } else if (rc && verbose) {
- if (slave == NULL) {
- fprintf(stderr, "warning: %s, failed to read"
- " entries under %s/slaves\n",
- strerror(errno), path);
- } else {
- fprintf(stderr, "unable to set tunables for"
- " slave device %s (slave would be"
- " unable to handle IO request from"
- " master %s)\n",
- real_path, source);
- }
+ if (rc == GLOB_NOMATCH) {
+ /* no slave device is not an error */
+ rc = 0;
+ } else if (rc && verbose) {
+ if (slave == NULL) {
+ fprintf(stderr, "warning: %s, failed to read"
+ " entries under %s/slaves\n",
+ strerror(errno), path);
+ } else {
+ fprintf(stderr, "unable to set tunables for"
+ " slave device %s (slave would be"
+ " unable to handle IO request from"
+ " master %s)\n",
+ real_path, source);
}
- globfree(&glob_info);
}
+ globfree(&glob_info);
return rc;
}
int ldiskfs_tune_lustre(char *dev, struct mount_opts *mop)
{
- return set_blockdev_tunables(dev, mop, 1);
+ return set_blockdev_tunables(dev, mop);
}
int ldiskfs_label_lustre(struct mount_opts *mop)
int rc;
snprintf(label_cmd, sizeof(label_cmd),
- TUNE2FS" -f -L %s %s >/dev/null 2>&1",
+ TUNE2FS" -f -L '%s' '%s' >/dev/null 2>&1",
mop->mo_ldd.ldd_svname, mop->mo_source);
rc = run_command(label_cmd, sizeof(label_cmd));
return NULL;
}
strcat(buf, "/");
- strcat(buf, devname);
+ if (strlen(devname) > sizeof(buf)-strlen(buf)-1) {
+ free(path);
+ return NULL;
+ }
+ strncat(buf, devname, sizeof(buf)-strlen(buf)-1);
} else {
- strcpy(buf, devname);
+ if (strlen(devname) > sizeof(buf)-1) {
+ free(path);
+ return NULL;
+ }
+ strncpy(buf, devname, sizeof(buf));
}
/* truncate filename before calling realpath */
ptr = strrchr(buf, '/');
ret = fread(enabled_features, 1, sizeof(enabled_features) - 1, fp);
enabled_features[ret] = '\0';
- fclose(fp);
+ pclose(fp);
if (strstr(enabled_features, feature))
return 1;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff