Merge branch 'akpm' (Andrew's patch-bomb)
Merge the rest of Andrew's patches for -rc1: "A bunch of fixes and misc missed-out-on things. That'll do for -rc1. I still have a batch of IPC patches which still have a possible bug report which I'm chasing down." * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (25 commits) keys: use keyring_alloc() to create module signing keyring keys: fix unreachable code sendfile: allows bypassing of notifier events SGI-XP: handle non-fatal traps fat: fix incorrect function comment Documentation: ABI: remove testing/sysfs-devices-node proc: fix inconsistent lock state linux/kernel.h: fix DIV_ROUND_CLOSEST with unsigned divisors memcg: don't register hotcpu notifier from ->css_alloc() checkpatch: warn on uapi #includes that #include <uapi/... revert "rtc: recycle id when unloading a rtc driver" mm: clean up transparent hugepage sysfs error messages hfsplus: add error message for the case of failure of sync fs in delayed_sync_fs() method hfsplus: rework processing of hfs_btree_write() returned error hfsplus: rework processing errors in hfsplus_free_extents() hfsplus: avoid crash on failed block map free kcmp: include linux/ptrace.h drivers/rtc/rtc-imxdi.c: must include <linux/spinlock.h> mm: cma: WARN if freed memory is still in use exec: do not leave bprm->interp on stack ...
This commit is contained in:
Linus Torvalds
commit
4c9a44aebe
|
|
@ -1,7 +0,0 @@
|
|||
What: /sys/devices/system/node/nodeX/compact
|
||||
Date: February 2010
|
||||
Contact: Mel Gorman <mel@csn.ul.ie>
|
||||
Description:
|
||||
When this file is written to, all memory within that node
|
||||
will be compacted. When it completes, memory will be freed
|
||||
into blocks which have as many contiguous pages as possible
|
||||
|
|
@ -446,12 +446,6 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
|
|||
possible to determine what the correct size should be.
|
||||
This option provides an override for these situations.
|
||||
|
||||
capability.disable=
|
||||
[SECURITY] Disable capabilities. This would normally
|
||||
be used only if an alternative security model is to be
|
||||
configured. Potentially dangerous and should only be
|
||||
used if you are entirely sure of the consequences.
|
||||
|
||||
ccw_timeout_log [S390]
|
||||
See Documentation/s390/CommonIO for details.
|
||||
|
||||
|
|
|
|||
|
|
@ -16,6 +16,7 @@
|
|||
*/
|
||||
static char dmi_empty_string[] = " ";
|
||||
|
||||
static u16 __initdata dmi_ver;
|
||||
/*
|
||||
* Catch too early calls to dmi_check_system():
|
||||
*/
|
||||
|
|
@ -118,12 +119,12 @@ static int __init dmi_walk_early(void (*decode)(const struct dmi_header *,
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int __init dmi_checksum(const u8 *buf)
|
||||
static int __init dmi_checksum(const u8 *buf, u8 len)
|
||||
{
|
||||
u8 sum = 0;
|
||||
int a;
|
||||
|
||||
for (a = 0; a < 15; a++)
|
||||
for (a = 0; a < len; a++)
|
||||
sum += buf[a];
|
||||
|
||||
return sum == 0;
|
||||
|
|
@ -161,8 +162,10 @@ static void __init dmi_save_uuid(const struct dmi_header *dm, int slot, int inde
|
|||
return;
|
||||
|
||||
for (i = 0; i < 16 && (is_ff || is_00); i++) {
|
||||
if(d[i] != 0x00) is_ff = 0;
|
||||
if(d[i] != 0xFF) is_00 = 0;
|
||||
if (d[i] != 0x00)
|
||||
is_00 = 0;
|
||||
if (d[i] != 0xFF)
|
||||
is_ff = 0;
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||||
}
|
||||
|
||||
if (is_ff || is_00)
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||||
|
|
@ -172,7 +175,15 @@ static void __init dmi_save_uuid(const struct dmi_header *dm, int slot, int inde
|
|||
if (!s)
|
||||
return;
|
||||
|
||||
sprintf(s, "%pUB", d);
|
||||
/*
|
||||
* As of version 2.6 of the SMBIOS specification, the first 3 fields of
|
||||
* the UUID are supposed to be little-endian encoded. The specification
|
||||
* says that this is the defacto standard.
|
||||
*/
|
||||
if (dmi_ver >= 0x0206)
|
||||
sprintf(s, "%pUL", d);
|
||||
else
|
||||
sprintf(s, "%pUB", d);
|
||||
|
||||
dmi_ident[slot] = s;
|
||||
}
|
||||
|
|
@ -404,29 +415,57 @@ static int __init dmi_present(const char __iomem *p)
|
|||
u8 buf[15];
|
||||
|
||||
memcpy_fromio(buf, p, 15);
|
||||
if ((memcmp(buf, "_DMI_", 5) == 0) && dmi_checksum(buf)) {
|
||||
if (dmi_checksum(buf, 15)) {
|
||||
dmi_num = (buf[13] << 8) | buf[12];
|
||||
dmi_len = (buf[7] << 8) | buf[6];
|
||||
dmi_base = (buf[11] << 24) | (buf[10] << 16) |
|
||||
(buf[9] << 8) | buf[8];
|
||||
|
||||
/*
|
||||
* DMI version 0.0 means that the real version is taken from
|
||||
* the SMBIOS version, which we don't know at this point.
|
||||
*/
|
||||
if (buf[14] != 0)
|
||||
printk(KERN_INFO "DMI %d.%d present.\n",
|
||||
buf[14] >> 4, buf[14] & 0xF);
|
||||
else
|
||||
printk(KERN_INFO "DMI present.\n");
|
||||
if (dmi_walk_early(dmi_decode) == 0) {
|
||||
if (dmi_ver)
|
||||
pr_info("SMBIOS %d.%d present.\n",
|
||||
dmi_ver >> 8, dmi_ver & 0xFF);
|
||||
else {
|
||||
dmi_ver = (buf[14] & 0xF0) << 4 |
|
||||
(buf[14] & 0x0F);
|
||||
pr_info("Legacy DMI %d.%d present.\n",
|
||||
dmi_ver >> 8, dmi_ver & 0xFF);
|
||||
}
|
||||
dmi_dump_ids();
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
dmi_ver = 0;
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int __init smbios_present(const char __iomem *p)
|
||||
{
|
||||
u8 buf[32];
|
||||
int offset = 0;
|
||||
|
||||
memcpy_fromio(buf, p, 32);
|
||||
if ((buf[5] < 32) && dmi_checksum(buf, buf[5])) {
|
||||
dmi_ver = (buf[6] << 8) + buf[7];
|
||||
|
||||
/* Some BIOS report weird SMBIOS version, fix that up */
|
||||
switch (dmi_ver) {
|
||||
case 0x021F:
|
||||
case 0x0221:
|
||||
pr_debug("SMBIOS version fixup(2.%d->2.%d)\n",
|
||||
dmi_ver & 0xFF, 3);
|
||||
dmi_ver = 0x0203;
|
||||
break;
|
||||
case 0x0233:
|
||||
pr_debug("SMBIOS version fixup(2.%d->2.%d)\n", 51, 6);
|
||||
dmi_ver = 0x0206;
|
||||
break;
|
||||
}
|
||||
offset = 16;
|
||||
}
|
||||
return dmi_present(buf + offset);
|
||||
}
|
||||
|
||||
void __init dmi_scan_machine(void)
|
||||
{
|
||||
char __iomem *p, *q;
|
||||
|
|
@ -444,7 +483,7 @@ void __init dmi_scan_machine(void)
|
|||
if (p == NULL)
|
||||
goto error;
|
||||
|
||||
rc = dmi_present(p + 0x10); /* offset of _DMI_ string */
|
||||
rc = smbios_present(p);
|
||||
dmi_iounmap(p, 32);
|
||||
if (!rc) {
|
||||
dmi_available = 1;
|
||||
|
|
@ -462,7 +501,12 @@ void __init dmi_scan_machine(void)
|
|||
goto error;
|
||||
|
||||
for (q = p; q < p + 0x10000; q += 16) {
|
||||
rc = dmi_present(q);
|
||||
if (memcmp(q, "_SM_", 4) == 0 && q - p <= 0xFFE0)
|
||||
rc = smbios_present(q);
|
||||
else if (memcmp(q, "_DMI_", 5) == 0)
|
||||
rc = dmi_present(q);
|
||||
else
|
||||
continue;
|
||||
if (!rc) {
|
||||
dmi_available = 1;
|
||||
dmi_iounmap(p, 0x10000);
|
||||
|
|
|
|||
|
|
@ -53,6 +53,10 @@
|
|||
#include <linux/kthread.h>
|
||||
#include "xpc.h"
|
||||
|
||||
#ifdef CONFIG_X86_64
|
||||
#include <asm/traps.h>
|
||||
#endif
|
||||
|
||||
/* define two XPC debug device structures to be used with dev_dbg() et al */
|
||||
|
||||
struct device_driver xpc_dbg_name = {
|
||||
|
|
@ -1079,6 +1083,9 @@ xpc_system_reboot(struct notifier_block *nb, unsigned long event, void *unused)
|
|||
return NOTIFY_DONE;
|
||||
}
|
||||
|
||||
/* Used to only allow one cpu to complete disconnect */
|
||||
static unsigned int xpc_die_disconnecting;
|
||||
|
||||
/*
|
||||
* Notify other partitions to deactivate from us by first disengaging from all
|
||||
* references to our memory.
|
||||
|
|
@ -1092,6 +1099,9 @@ xpc_die_deactivate(void)
|
|||
long keep_waiting;
|
||||
long wait_to_print;
|
||||
|
||||
if (cmpxchg(&xpc_die_disconnecting, 0, 1))
|
||||
return;
|
||||
|
||||
/* keep xpc_hb_checker thread from doing anything (just in case) */
|
||||
xpc_exiting = 1;
|
||||
|
||||
|
|
@ -1159,7 +1169,7 @@ xpc_die_deactivate(void)
|
|||
* about the lack of a heartbeat.
|
||||
*/
|
||||
static int
|
||||
xpc_system_die(struct notifier_block *nb, unsigned long event, void *unused)
|
||||
xpc_system_die(struct notifier_block *nb, unsigned long event, void *_die_args)
|
||||
{
|
||||
#ifdef CONFIG_IA64 /* !!! temporary kludge */
|
||||
switch (event) {
|
||||
|
|
@ -1191,7 +1201,27 @@ xpc_system_die(struct notifier_block *nb, unsigned long event, void *unused)
|
|||
break;
|
||||
}
|
||||
#else
|
||||
xpc_die_deactivate();
|
||||
struct die_args *die_args = _die_args;
|
||||
|
||||
switch (event) {
|
||||
case DIE_TRAP:
|
||||
if (die_args->trapnr == X86_TRAP_DF)
|
||||
xpc_die_deactivate();
|
||||
|
||||
if (((die_args->trapnr == X86_TRAP_MF) ||
|
||||
(die_args->trapnr == X86_TRAP_XF)) &&
|
||||
!user_mode_vm(die_args->regs))
|
||||
xpc_die_deactivate();
|
||||
|
||||
break;
|
||||
case DIE_INT3:
|
||||
case DIE_DEBUG:
|
||||
break;
|
||||
case DIE_OOPS:
|
||||
case DIE_GPF:
|
||||
default:
|
||||
xpc_die_deactivate();
|
||||
}
|
||||
#endif
|
||||
|
||||
return NOTIFY_DONE;
|
||||
|
|
|
|||
|
|
@ -244,7 +244,6 @@ void rtc_device_unregister(struct rtc_device *rtc)
|
|||
rtc_proc_del_device(rtc);
|
||||
device_unregister(&rtc->dev);
|
||||
rtc->ops = NULL;
|
||||
ida_simple_remove(&rtc_ida, rtc->id);
|
||||
mutex_unlock(&rtc->ops_lock);
|
||||
put_device(&rtc->dev);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -36,6 +36,7 @@
|
|||
#include <linux/platform_device.h>
|
||||
#include <linux/rtc.h>
|
||||
#include <linux/sched.h>
|
||||
#include <linux/spinlock.h>
|
||||
#include <linux/workqueue.h>
|
||||
#include <linux/of.h>
|
||||
|
||||
|
|
|
|||
|
|
@ -172,7 +172,10 @@ static int load_misc_binary(struct linux_binprm *bprm)
|
|||
goto _error;
|
||||
bprm->argc ++;
|
||||
|
||||
bprm->interp = iname; /* for binfmt_script */
|
||||
/* Update interp in case binfmt_script needs it. */
|
||||
retval = bprm_change_interp(iname, bprm);
|
||||
if (retval < 0)
|
||||
goto _error;
|
||||
|
||||
interp_file = open_exec (iname);
|
||||
retval = PTR_ERR (interp_file);
|
||||
|
|
|
|||
|
|
@ -80,7 +80,9 @@ static int load_script(struct linux_binprm *bprm)
|
|||
retval = copy_strings_kernel(1, &i_name, bprm);
|
||||
if (retval) return retval;
|
||||
bprm->argc++;
|
||||
bprm->interp = interp;
|
||||
retval = bprm_change_interp(interp, bprm);
|
||||
if (retval < 0)
|
||||
return retval;
|
||||
|
||||
/*
|
||||
* OK, now restart the process with the interpreter's dentry.
|
||||
|
|
|
|||
15
fs/exec.c
15
fs/exec.c
|
|
@ -1175,9 +1175,24 @@ void free_bprm(struct linux_binprm *bprm)
|
|||
mutex_unlock(¤t->signal->cred_guard_mutex);
|
||||
abort_creds(bprm->cred);
|
||||
}
|
||||
/* If a binfmt changed the interp, free it. */
|
||||
if (bprm->interp != bprm->filename)
|
||||
kfree(bprm->interp);
|
||||
kfree(bprm);
|
||||
}
|
||||
|
||||
int bprm_change_interp(char *interp, struct linux_binprm *bprm)
|
||||
{
|
||||
/* If a binfmt changed the interp, free it first. */
|
||||
if (bprm->interp != bprm->filename)
|
||||
kfree(bprm->interp);
|
||||
bprm->interp = kstrdup(interp, GFP_KERNEL);
|
||||
if (!bprm->interp)
|
||||
return -ENOMEM;
|
||||
return 0;
|
||||
}
|
||||
EXPORT_SYMBOL(bprm_change_interp);
|
||||
|
||||
/*
|
||||
* install the new credentials for this executable
|
||||
*/
|
||||
|
|
|
|||
|
|
@ -461,8 +461,7 @@ static int fat_parse_short(struct super_block *sb,
|
|||
}
|
||||
|
||||
/*
|
||||
* Return values: negative -> error, 0 -> not found, positive -> found,
|
||||
* value is the total amount of slots, including the shortname entry.
|
||||
* Return values: negative -> error/not found, 0 -> found.
|
||||
*/
|
||||
int fat_search_long(struct inode *inode, const unsigned char *name,
|
||||
int name_len, struct fat_slot_info *sinfo)
|
||||
|
|
@ -1255,7 +1254,7 @@ int fat_add_entries(struct inode *dir, void *slots, int nr_slots,
|
|||
|
||||
sinfo->nr_slots = nr_slots;
|
||||
|
||||
/* First stage: search free direcotry entries */
|
||||
/* First stage: search free directory entries */
|
||||
free_slots = nr_bhs = 0;
|
||||
bh = prev = NULL;
|
||||
pos = 0;
|
||||
|
|
|
|||
|
|
@ -1344,7 +1344,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat,
|
|||
sbi->dir_entries = get_unaligned_le16(&b->dir_entries);
|
||||
if (sbi->dir_entries & (sbi->dir_per_block - 1)) {
|
||||
if (!silent)
|
||||
fat_msg(sb, KERN_ERR, "bogus directroy-entries per block"
|
||||
fat_msg(sb, KERN_ERR, "bogus directory-entries per block"
|
||||
" (%u)", sbi->dir_entries);
|
||||
brelse(bh);
|
||||
goto out_invalid;
|
||||
|
|
|
|||
|
|
@ -135,6 +135,10 @@ int fat_chain_add(struct inode *inode, int new_dclus, int nr_cluster)
|
|||
}
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
/*
|
||||
* FIXME:Although we can add this cache, fat_cache_add() is
|
||||
* assuming to be called after linear search with fat_cache_id.
|
||||
*/
|
||||
// fat_cache_add(inode, new_fclus, new_dclus);
|
||||
} else {
|
||||
MSDOS_I(inode)->i_start = new_dclus;
|
||||
|
|
|
|||
|
|
@ -176,12 +176,14 @@ int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count)
|
|||
dprint(DBG_BITMAP, "block_free: %u,%u\n", offset, count);
|
||||
/* are all of the bits in range? */
|
||||
if ((offset + count) > sbi->total_blocks)
|
||||
return -2;
|
||||
return -ENOENT;
|
||||
|
||||
mutex_lock(&sbi->alloc_mutex);
|
||||
mapping = sbi->alloc_file->i_mapping;
|
||||
pnr = offset / PAGE_CACHE_BITS;
|
||||
page = read_mapping_page(mapping, pnr, NULL);
|
||||
if (IS_ERR(page))
|
||||
goto kaboom;
|
||||
pptr = kmap(page);
|
||||
curr = pptr + (offset & (PAGE_CACHE_BITS - 1)) / 32;
|
||||
end = pptr + PAGE_CACHE_BITS / 32;
|
||||
|
|
@ -214,6 +216,8 @@ int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count)
|
|||
set_page_dirty(page);
|
||||
kunmap(page);
|
||||
page = read_mapping_page(mapping, ++pnr, NULL);
|
||||
if (IS_ERR(page))
|
||||
goto kaboom;
|
||||
pptr = kmap(page);
|
||||
curr = pptr;
|
||||
end = pptr + PAGE_CACHE_BITS / 32;
|
||||
|
|
@ -232,4 +236,11 @@ out:
|
|||
mutex_unlock(&sbi->alloc_mutex);
|
||||
|
||||
return 0;
|
||||
|
||||
kaboom:
|
||||
printk(KERN_CRIT "hfsplus: unable to mark blocks free: error %ld\n",
|
||||
PTR_ERR(page));
|
||||
mutex_unlock(&sbi->alloc_mutex);
|
||||
|
||||
return -EIO;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -159,7 +159,7 @@ void hfs_btree_close(struct hfs_btree *tree)
|
|||
kfree(tree);
|
||||
}
|
||||
|
||||
void hfs_btree_write(struct hfs_btree *tree)
|
||||
int hfs_btree_write(struct hfs_btree *tree)
|
||||
{
|
||||
struct hfs_btree_header_rec *head;
|
||||
struct hfs_bnode *node;
|
||||
|
|
@ -168,7 +168,7 @@ void hfs_btree_write(struct hfs_btree *tree)
|
|||
node = hfs_bnode_find(tree, 0);
|
||||
if (IS_ERR(node))
|
||||
/* panic? */
|
||||
return;
|
||||
return -EIO;
|
||||
/* Load the header */
|
||||
page = node->page[0];
|
||||
head = (struct hfs_btree_header_rec *)(kmap(page) +
|
||||
|
|
@ -186,6 +186,7 @@ void hfs_btree_write(struct hfs_btree *tree)
|
|||
kunmap(page);
|
||||
set_page_dirty(page);
|
||||
hfs_bnode_put(node);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct hfs_bnode *hfs_bmap_new_bmap(struct hfs_bnode *prev, u32 idx)
|
||||
|
|
|
|||
|
|
@ -329,6 +329,7 @@ static int hfsplus_free_extents(struct super_block *sb,
|
|||
{
|
||||
u32 count, start;
|
||||
int i;
|
||||
int err = 0;
|
||||
|
||||
hfsplus_dump_extent(extent);
|
||||
for (i = 0; i < 8; extent++, i++) {
|
||||
|
|
@ -345,18 +346,33 @@ found:
|
|||
for (;;) {
|
||||
start = be32_to_cpu(extent->start_block);
|
||||
if (count <= block_nr) {
|
||||
hfsplus_block_free(sb, start, count);
|
||||
err = hfsplus_block_free(sb, start, count);
|
||||
if (err) {
|
||||
printk(KERN_ERR "hfs: can't free extent\n");
|
||||
dprint(DBG_EXTENT, " start: %u count: %u\n",
|
||||
start, count);
|
||||
}
|
||||
extent->block_count = 0;
|
||||
extent->start_block = 0;
|
||||
block_nr -= count;
|
||||
} else {
|
||||
count -= block_nr;
|
||||
hfsplus_block_free(sb, start + count, block_nr);
|
||||
err = hfsplus_block_free(sb, start + count, block_nr);
|
||||
if (err) {
|
||||
printk(KERN_ERR "hfs: can't free extent\n");
|
||||
dprint(DBG_EXTENT, " start: %u count: %u\n",
|
||||
start, count);
|
||||
}
|
||||
extent->block_count = cpu_to_be32(count);
|
||||
block_nr = 0;
|
||||
}
|
||||
if (!block_nr || !i)
|
||||
return 0;
|
||||
if (!block_nr || !i) {
|
||||
/*
|
||||
* Try to free all extents and
|
||||
* return only last error
|
||||
*/
|
||||
return err;
|
||||
}
|
||||
i--;
|
||||
extent--;
|
||||
count = be32_to_cpu(extent->block_count);
|
||||
|
|
|
|||
|
|
@ -335,7 +335,7 @@ int hfsplus_block_free(struct super_block *, u32, u32);
|
|||
/* btree.c */
|
||||
struct hfs_btree *hfs_btree_open(struct super_block *, u32);
|
||||
void hfs_btree_close(struct hfs_btree *);
|
||||
void hfs_btree_write(struct hfs_btree *);
|
||||
int hfs_btree_write(struct hfs_btree *);
|
||||
struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *);
|
||||
void hfs_bmap_free(struct hfs_bnode *);
|
||||
|
||||
|
|
|
|||
|
|
@ -127,8 +127,14 @@ static int hfsplus_system_write_inode(struct inode *inode)
|
|||
hfsplus_mark_mdb_dirty(inode->i_sb);
|
||||
}
|
||||
hfsplus_inode_write_fork(inode, fork);
|
||||
if (tree)
|
||||
hfs_btree_write(tree);
|
||||
if (tree) {
|
||||
int err = hfs_btree_write(tree);
|
||||
if (err) {
|
||||
printk(KERN_ERR "hfs: b-tree write err: %d, ino %lu\n",
|
||||
err, inode->i_ino);
|
||||
return err;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
@ -226,6 +232,7 @@ out:
|
|||
|
||||
static void delayed_sync_fs(struct work_struct *work)
|
||||
{
|
||||
int err;
|
||||
struct hfsplus_sb_info *sbi;
|
||||
|
||||
sbi = container_of(work, struct hfsplus_sb_info, sync_work.work);
|
||||
|
|
@ -234,7 +241,9 @@ static void delayed_sync_fs(struct work_struct *work)
|
|||
sbi->work_queued = 0;
|
||||
spin_unlock(&sbi->work_lock);
|
||||
|
||||
hfsplus_sync_fs(sbi->alloc_file->i_sb, 1);
|
||||
err = hfsplus_sync_fs(sbi->alloc_file->i_sb, 1);
|
||||
if (err)
|
||||
printk(KERN_ERR "hfs: delayed sync fs err %d\n", err);
|
||||
}
|
||||
|
||||
void hfsplus_mark_mdb_dirty(struct super_block *sb)
|
||||
|
|
|
|||
|
|
@ -352,18 +352,18 @@ retry:
|
|||
if (!ida_pre_get(&proc_inum_ida, GFP_KERNEL))
|
||||
return -ENOMEM;
|
||||
|
||||
spin_lock(&proc_inum_lock);
|
||||
spin_lock_bh(&proc_inum_lock);
|
||||
error = ida_get_new(&proc_inum_ida, &i);
|
||||
spin_unlock(&proc_inum_lock);
|
||||
spin_unlock_bh(&proc_inum_lock);
|
||||
if (error == -EAGAIN)
|
||||
goto retry;
|
||||
else if (error)
|
||||
return error;
|
||||
|
||||
if (i > UINT_MAX - PROC_DYNAMIC_FIRST) {
|
||||
spin_lock(&proc_inum_lock);
|
||||
spin_lock_bh(&proc_inum_lock);
|
||||
ida_remove(&proc_inum_ida, i);
|
||||
spin_unlock(&proc_inum_lock);
|
||||
spin_unlock_bh(&proc_inum_lock);
|
||||
return -ENOSPC;
|
||||
}
|
||||
*inum = PROC_DYNAMIC_FIRST + i;
|
||||
|
|
@ -372,9 +372,9 @@ retry:
|
|||
|
||||
void proc_free_inum(unsigned int inum)
|
||||
{
|
||||
spin_lock(&proc_inum_lock);
|
||||
spin_lock_bh(&proc_inum_lock);
|
||||
ida_remove(&proc_inum_ida, inum - PROC_DYNAMIC_FIRST);
|
||||
spin_unlock(&proc_inum_lock);
|
||||
spin_unlock_bh(&proc_inum_lock);
|
||||
}
|
||||
|
||||
static void *proc_follow_link(struct dentry *dentry, struct nameidata *nd)
|
||||
|
|
|
|||
|
|
@ -935,6 +935,8 @@ ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos, size_t count,
|
|||
if (retval > 0) {
|
||||
add_rchar(current, retval);
|
||||
add_wchar(current, retval);
|
||||
fsnotify_access(in.file);
|
||||
fsnotify_modify(out.file);
|
||||
}
|
||||
|
||||
inc_syscr(current);
|
||||
|
|
|
|||
|
|
@ -112,6 +112,7 @@ extern int setup_arg_pages(struct linux_binprm * bprm,
|
|||
unsigned long stack_top,
|
||||
int executable_stack);
|
||||
extern int bprm_mm_init(struct linux_binprm *bprm);
|
||||
extern int bprm_change_interp(char *interp, struct linux_binprm *bprm);
|
||||
extern int copy_strings_kernel(int argc, const char *const *argv,
|
||||
struct linux_binprm *bprm);
|
||||
extern int prepare_bprm_creds(struct linux_binprm *bprm);
|
||||
|
|
|
|||
|
|
@ -77,13 +77,15 @@
|
|||
|
||||
/*
|
||||
* Divide positive or negative dividend by positive divisor and round
|
||||
* to closest integer. Result is undefined for negative divisors.
|
||||
* to closest integer. Result is undefined for negative divisors and
|
||||
* for negative dividends if the divisor variable type is unsigned.
|
||||
*/
|
||||
#define DIV_ROUND_CLOSEST(x, divisor)( \
|
||||
{ \
|
||||
typeof(x) __x = x; \
|
||||
typeof(divisor) __d = divisor; \
|
||||
(((typeof(x))-1) > 0 || (__x) > 0) ? \
|
||||
(((typeof(x))-1) > 0 || \
|
||||
((typeof(divisor))-1) > 0 || (__x) > 0) ? \
|
||||
(((__x) + ((__d) / 2)) / (__d)) : \
|
||||
(((__x) - ((__d) / 2)) / (__d)); \
|
||||
} \
|
||||
|
|
|
|||
|
|
@ -4,6 +4,7 @@
|
|||
#include <linux/string.h>
|
||||
#include <linux/random.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/ptrace.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/errno.h>
|
||||
#include <linux/cache.h>
|
||||
|
|
|
|||
|
|
@ -34,18 +34,15 @@ static __init int module_verify_init(void)
|
|||
{
|
||||
pr_notice("Initialise module verification\n");
|
||||
|
||||
modsign_keyring = key_alloc(&key_type_keyring, ".module_sign",
|
||||
KUIDT_INIT(0), KGIDT_INIT(0),
|
||||
current_cred(),
|
||||
(KEY_POS_ALL & ~KEY_POS_SETATTR) |
|
||||
KEY_USR_VIEW | KEY_USR_READ,
|
||||
KEY_ALLOC_NOT_IN_QUOTA);
|
||||
modsign_keyring = keyring_alloc(".module_sign",
|
||||
KUIDT_INIT(0), KGIDT_INIT(0),
|
||||
current_cred(),
|
||||
((KEY_POS_ALL & ~KEY_POS_SETATTR) |
|
||||
KEY_USR_VIEW | KEY_USR_READ),
|
||||
KEY_ALLOC_NOT_IN_QUOTA, NULL);
|
||||
if (IS_ERR(modsign_keyring))
|
||||
panic("Can't allocate module signing keyring\n");
|
||||
|
||||
if (key_instantiate_and_link(modsign_keyring, NULL, 0, NULL, NULL) < 0)
|
||||
panic("Can't instantiate module signing keyring\n");
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -17,6 +17,21 @@
|
|||
#include <linux/balloon_compaction.h>
|
||||
#include "internal.h"
|
||||
|
||||
#ifdef CONFIG_COMPACTION
|
||||
static inline void count_compact_event(enum vm_event_item item)
|
||||
{
|
||||
count_vm_event(item);
|
||||
}
|
||||
|
||||
static inline void count_compact_events(enum vm_event_item item, long delta)
|
||||
{
|
||||
count_vm_events(item, delta);
|
||||
}
|
||||
#else
|
||||
#define count_compact_event(item) do { } while (0)
|
||||
#define count_compact_events(item, delta) do { } while (0)
|
||||
#endif
|
||||
|
||||
#if defined CONFIG_COMPACTION || defined CONFIG_CMA
|
||||
|
||||
#define CREATE_TRACE_POINTS
|
||||
|
|
@ -303,10 +318,9 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
|
|||
if (blockpfn == end_pfn)
|
||||
update_pageblock_skip(cc, valid_page, total_isolated, false);
|
||||
|
||||
count_vm_events(COMPACTFREE_SCANNED, nr_scanned);
|
||||
count_compact_events(COMPACTFREE_SCANNED, nr_scanned);
|
||||
if (total_isolated)
|
||||
count_vm_events(COMPACTISOLATED, total_isolated);
|
||||
|
||||
count_compact_events(COMPACTISOLATED, total_isolated);
|
||||
return total_isolated;
|
||||
}
|
||||
|
||||
|
|
@ -613,9 +627,9 @@ next_pageblock:
|
|||
|
||||
trace_mm_compaction_isolate_migratepages(nr_scanned, nr_isolated);
|
||||
|
||||
count_vm_events(COMPACTMIGRATE_SCANNED, nr_scanned);
|
||||
count_compact_events(COMPACTMIGRATE_SCANNED, nr_scanned);
|
||||
if (nr_isolated)
|
||||
count_vm_events(COMPACTISOLATED, nr_isolated);
|
||||
count_compact_events(COMPACTISOLATED, nr_isolated);
|
||||
|
||||
return low_pfn;
|
||||
}
|
||||
|
|
@ -1110,7 +1124,7 @@ unsigned long try_to_compact_pages(struct zonelist *zonelist,
|
|||
if (!order || !may_enter_fs || !may_perform_io)
|
||||
return rc;
|
||||
|
||||
count_vm_event(COMPACTSTALL);
|
||||
count_compact_event(COMPACTSTALL);
|
||||
|
||||
#ifdef CONFIG_CMA
|
||||
if (allocflags_to_migratetype(gfp_mask) == MIGRATE_MOVABLE)
|
||||
|
|
|
|||
|
|
@ -574,19 +574,19 @@ static int __init hugepage_init_sysfs(struct kobject **hugepage_kobj)
|
|||
|
||||
*hugepage_kobj = kobject_create_and_add("transparent_hugepage", mm_kobj);
|
||||
if (unlikely(!*hugepage_kobj)) {
|
||||
printk(KERN_ERR "hugepage: failed kobject create\n");
|
||||
printk(KERN_ERR "hugepage: failed to create transparent hugepage kobject\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
err = sysfs_create_group(*hugepage_kobj, &hugepage_attr_group);
|
||||
if (err) {
|
||||
printk(KERN_ERR "hugepage: failed register hugeage group\n");
|
||||
printk(KERN_ERR "hugepage: failed to register transparent hugepage group\n");
|
||||
goto delete_obj;
|
||||
}
|
||||
|
||||
err = sysfs_create_group(*hugepage_kobj, &khugepaged_attr_group);
|
||||
if (err) {
|
||||
printk(KERN_ERR "hugepage: failed register hugeage group\n");
|
||||
printk(KERN_ERR "hugepage: failed to register transparent hugepage group\n");
|
||||
goto remove_hp_group;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -6090,7 +6090,6 @@ mem_cgroup_css_alloc(struct cgroup *cont)
|
|||
&per_cpu(memcg_stock, cpu);
|
||||
INIT_WORK(&stock->work, drain_local_stock);
|
||||
}
|
||||
hotcpu_notifier(memcg_cpu_hotplug_callback, 0);
|
||||
} else {
|
||||
parent = mem_cgroup_from_cont(cont->parent);
|
||||
memcg->use_hierarchy = parent->use_hierarchy;
|
||||
|
|
@ -6756,6 +6755,19 @@ struct cgroup_subsys mem_cgroup_subsys = {
|
|||
.use_id = 1,
|
||||
};
|
||||
|
||||
/*
|
||||
* The rest of init is performed during ->css_alloc() for root css which
|
||||
* happens before initcalls. hotcpu_notifier() can't be done together as
|
||||
* it would introduce circular locking by adding cgroup_lock -> cpu hotplug
|
||||
* dependency. Do it from a subsys_initcall().
|
||||
*/
|
||||
static int __init mem_cgroup_init(void)
|
||||
{
|
||||
hotcpu_notifier(memcg_cpu_hotplug_callback, 0);
|
||||
return 0;
|
||||
}
|
||||
subsys_initcall(mem_cgroup_init);
|
||||
|
||||
#ifdef CONFIG_MEMCG_SWAP
|
||||
static int __init enable_swap_account(char *s)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -200,6 +200,18 @@ static unsigned long highmem_dirtyable_memory(unsigned long total)
|
|||
x += zone_page_state(z, NR_FREE_PAGES) +
|
||||
zone_reclaimable_pages(z) - z->dirty_balance_reserve;
|
||||
}
|
||||
/*
|
||||
* Unreclaimable memory (kernel memory or anonymous memory
|
||||
* without swap) can bring down the dirtyable pages below
|
||||
* the zone's dirty balance reserve and the above calculation
|
||||
* will underflow. However we still want to add in nodes
|
||||
* which are below threshold (negative values) to get a more
|
||||
* accurate calculation but make sure that the total never
|
||||
* underflows.
|
||||
*/
|
||||
if ((long)x < 0)
|
||||
x = 0;
|
||||
|
||||
/*
|
||||
* Make sure that the number of highmem pages is never larger
|
||||
* than the number of the total dirtyable memory. This can only
|
||||
|
|
@ -222,8 +234,8 @@ static unsigned long global_dirtyable_memory(void)
|
|||
{
|
||||
unsigned long x;
|
||||
|
||||
x = global_page_state(NR_FREE_PAGES) + global_reclaimable_pages() -
|
||||
dirty_balance_reserve;
|
||||
x = global_page_state(NR_FREE_PAGES) + global_reclaimable_pages();
|
||||
x -= min(x, dirty_balance_reserve);
|
||||
|
||||
if (!vm_highmem_is_dirtyable)
|
||||
x -= highmem_dirtyable_memory(x);
|
||||
|
|
@ -290,9 +302,12 @@ static unsigned long zone_dirtyable_memory(struct zone *zone)
|
|||
* highmem zone can hold its share of dirty pages, so we don't
|
||||
* care about vm_highmem_is_dirtyable here.
|
||||
*/
|
||||
return zone_page_state(zone, NR_FREE_PAGES) +
|
||||
zone_reclaimable_pages(zone) -
|
||||
zone->dirty_balance_reserve;
|
||||
unsigned long nr_pages = zone_page_state(zone, NR_FREE_PAGES) +
|
||||
zone_reclaimable_pages(zone);
|
||||
|
||||
/* don't allow this to underflow */
|
||||
nr_pages -= min(nr_pages, zone->dirty_balance_reserve);
|
||||
return nr_pages;
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -5978,8 +5978,15 @@ done:
|
|||
|
||||
void free_contig_range(unsigned long pfn, unsigned nr_pages)
|
||||
{
|
||||
for (; nr_pages--; ++pfn)
|
||||
__free_page(pfn_to_page(pfn));
|
||||
unsigned int count = 0;
|
||||
|
||||
for (; nr_pages--; pfn++) {
|
||||
struct page *page = pfn_to_page(pfn);
|
||||
|
||||
count += page_count(page) != 1;
|
||||
__free_page(page);
|
||||
}
|
||||
WARN(count != 0, "%d pages are still in use!\n", count);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
|
|
|||
|
|
@ -2226,8 +2226,11 @@ sub process {
|
|||
my $path = $1;
|
||||
if ($path =~ m{//}) {
|
||||
ERROR("MALFORMED_INCLUDE",
|
||||
"malformed #include filename\n" .
|
||||
$herecurr);
|
||||
"malformed #include filename\n" . $herecurr);
|
||||
}
|
||||
if ($path =~ "^uapi/" && $realfile =~ m@\binclude/uapi/@) {
|
||||
ERROR("UAPI_INCLUDE",
|
||||
"No #include in ...include/uapi/... should use a uapi/ path prefix\n" . $herecurr);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -367,8 +367,6 @@ key_ref_t search_my_process_keyrings(struct key_type *type,
|
|||
|
||||
switch (PTR_ERR(key_ref)) {
|
||||
case -EAGAIN: /* no key */
|
||||
if (ret)
|
||||
break;
|
||||
case -ENOKEY: /* negative key */
|
||||
ret = key_ref;
|
||||
break;
|
||||
|
|
|
|||
Reference in New Issue