sync mm-stable with mm-hotfixes-stable to pick up depended-upon upstream changes
This commit is contained in:
Andrew Morton
Коммит
f8f238ffe5
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@ -430,6 +430,23 @@ static int nilfs_segctor_reset_segment_buffer(struct nilfs_sc_info *sci)
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return 0;
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}
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/**
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* nilfs_segctor_zeropad_segsum - zero pad the rest of the segment summary area
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* @sci: segment constructor object
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*
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* nilfs_segctor_zeropad_segsum() zero-fills unallocated space at the end of
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* the current segment summary block.
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*/
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static void nilfs_segctor_zeropad_segsum(struct nilfs_sc_info *sci)
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{
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struct nilfs_segsum_pointer *ssp;
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ssp = sci->sc_blk_cnt > 0 ? &sci->sc_binfo_ptr : &sci->sc_finfo_ptr;
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if (ssp->offset < ssp->bh->b_size)
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memset(ssp->bh->b_data + ssp->offset, 0,
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ssp->bh->b_size - ssp->offset);
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}
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static int nilfs_segctor_feed_segment(struct nilfs_sc_info *sci)
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{
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sci->sc_nblk_this_inc += sci->sc_curseg->sb_sum.nblocks;
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@ -438,6 +455,7 @@ static int nilfs_segctor_feed_segment(struct nilfs_sc_info *sci)
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* The current segment is filled up
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* (internal code)
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*/
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nilfs_segctor_zeropad_segsum(sci);
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sci->sc_curseg = NILFS_NEXT_SEGBUF(sci->sc_curseg);
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return nilfs_segctor_reset_segment_buffer(sci);
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}
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@ -542,6 +560,7 @@ static int nilfs_segctor_add_file_block(struct nilfs_sc_info *sci,
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goto retry;
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}
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if (unlikely(required)) {
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nilfs_segctor_zeropad_segsum(sci);
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err = nilfs_segbuf_extend_segsum(segbuf);
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if (unlikely(err))
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goto failed;
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@ -1533,6 +1552,7 @@ static int nilfs_segctor_collect(struct nilfs_sc_info *sci,
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nadd = min_t(int, nadd << 1, SC_MAX_SEGDELTA);
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sci->sc_stage = prev_stage;
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}
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nilfs_segctor_zeropad_segsum(sci);
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nilfs_segctor_truncate_segments(sci, sci->sc_curseg, nilfs->ns_sufile);
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return 0;
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@ -134,11 +134,12 @@ void kmsan_kfree_large(const void *ptr);
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* @page_shift: page_shift passed to vmap_range_noflush().
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*
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* KMSAN maps shadow and origin pages of @pages into contiguous ranges in
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* vmalloc metadata address range.
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* vmalloc metadata address range. Returns 0 on success, callers must check
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* for non-zero return value.
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*/
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void kmsan_vmap_pages_range_noflush(unsigned long start, unsigned long end,
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pgprot_t prot, struct page **pages,
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unsigned int page_shift);
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int kmsan_vmap_pages_range_noflush(unsigned long start, unsigned long end,
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pgprot_t prot, struct page **pages,
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unsigned int page_shift);
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/**
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* kmsan_vunmap_kernel_range_noflush() - Notify KMSAN about a vunmap.
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@ -159,11 +160,12 @@ void kmsan_vunmap_range_noflush(unsigned long start, unsigned long end);
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* @page_shift: page_shift argument passed to vmap_range_noflush().
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*
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* KMSAN creates new metadata pages for the physical pages mapped into the
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* virtual memory.
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* virtual memory. Returns 0 on success, callers must check for non-zero return
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* value.
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*/
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void kmsan_ioremap_page_range(unsigned long addr, unsigned long end,
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phys_addr_t phys_addr, pgprot_t prot,
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unsigned int page_shift);
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int kmsan_ioremap_page_range(unsigned long addr, unsigned long end,
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phys_addr_t phys_addr, pgprot_t prot,
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unsigned int page_shift);
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/**
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* kmsan_iounmap_page_range() - Notify KMSAN about a iounmap_page_range() call.
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@ -281,12 +283,13 @@ static inline void kmsan_kfree_large(const void *ptr)
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{
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}
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static inline void kmsan_vmap_pages_range_noflush(unsigned long start,
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unsigned long end,
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pgprot_t prot,
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struct page **pages,
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unsigned int page_shift)
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static inline int kmsan_vmap_pages_range_noflush(unsigned long start,
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unsigned long end,
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pgprot_t prot,
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struct page **pages,
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unsigned int page_shift)
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{
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return 0;
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}
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static inline void kmsan_vunmap_range_noflush(unsigned long start,
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@ -294,12 +297,12 @@ static inline void kmsan_vunmap_range_noflush(unsigned long start,
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{
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}
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static inline void kmsan_ioremap_page_range(unsigned long start,
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unsigned long end,
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phys_addr_t phys_addr,
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pgprot_t prot,
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unsigned int page_shift)
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static inline int kmsan_ioremap_page_range(unsigned long start,
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unsigned long end,
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phys_addr_t phys_addr, pgprot_t prot,
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unsigned int page_shift)
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{
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return 0;
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}
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static inline void kmsan_iounmap_page_range(unsigned long start,
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@ -1308,6 +1308,7 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p,
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fail_pcpu:
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while (i > 0)
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percpu_counter_destroy(&mm->rss_stat[--i]);
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destroy_context(mm);
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fail_nocontext:
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mm_free_pgd(mm);
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fail_nopgd:
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69
kernel/sys.c
69
kernel/sys.c
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@ -664,6 +664,7 @@ long __sys_setresuid(uid_t ruid, uid_t euid, uid_t suid)
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struct cred *new;
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int retval;
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kuid_t kruid, keuid, ksuid;
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bool ruid_new, euid_new, suid_new;
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kruid = make_kuid(ns, ruid);
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keuid = make_kuid(ns, euid);
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@ -678,25 +679,29 @@ long __sys_setresuid(uid_t ruid, uid_t euid, uid_t suid)
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if ((suid != (uid_t) -1) && !uid_valid(ksuid))
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return -EINVAL;
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old = current_cred();
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/* check for no-op */
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if ((ruid == (uid_t) -1 || uid_eq(kruid, old->uid)) &&
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(euid == (uid_t) -1 || (uid_eq(keuid, old->euid) &&
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uid_eq(keuid, old->fsuid))) &&
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(suid == (uid_t) -1 || uid_eq(ksuid, old->suid)))
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return 0;
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ruid_new = ruid != (uid_t) -1 && !uid_eq(kruid, old->uid) &&
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!uid_eq(kruid, old->euid) && !uid_eq(kruid, old->suid);
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euid_new = euid != (uid_t) -1 && !uid_eq(keuid, old->uid) &&
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!uid_eq(keuid, old->euid) && !uid_eq(keuid, old->suid);
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suid_new = suid != (uid_t) -1 && !uid_eq(ksuid, old->uid) &&
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!uid_eq(ksuid, old->euid) && !uid_eq(ksuid, old->suid);
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if ((ruid_new || euid_new || suid_new) &&
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!ns_capable_setid(old->user_ns, CAP_SETUID))
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return -EPERM;
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new = prepare_creds();
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if (!new)
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return -ENOMEM;
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old = current_cred();
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retval = -EPERM;
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if (!ns_capable_setid(old->user_ns, CAP_SETUID)) {
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if (ruid != (uid_t) -1 && !uid_eq(kruid, old->uid) &&
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!uid_eq(kruid, old->euid) && !uid_eq(kruid, old->suid))
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goto error;
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if (euid != (uid_t) -1 && !uid_eq(keuid, old->uid) &&
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!uid_eq(keuid, old->euid) && !uid_eq(keuid, old->suid))
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goto error;
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if (suid != (uid_t) -1 && !uid_eq(ksuid, old->uid) &&
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!uid_eq(ksuid, old->euid) && !uid_eq(ksuid, old->suid))
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goto error;
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}
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if (ruid != (uid_t) -1) {
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new->uid = kruid;
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if (!uid_eq(kruid, old->uid)) {
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@ -761,6 +766,7 @@ long __sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid)
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struct cred *new;
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int retval;
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kgid_t krgid, kegid, ksgid;
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bool rgid_new, egid_new, sgid_new;
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krgid = make_kgid(ns, rgid);
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kegid = make_kgid(ns, egid);
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@ -773,23 +779,28 @@ long __sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid)
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if ((sgid != (gid_t) -1) && !gid_valid(ksgid))
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return -EINVAL;
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old = current_cred();
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/* check for no-op */
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if ((rgid == (gid_t) -1 || gid_eq(krgid, old->gid)) &&
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(egid == (gid_t) -1 || (gid_eq(kegid, old->egid) &&
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gid_eq(kegid, old->fsgid))) &&
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(sgid == (gid_t) -1 || gid_eq(ksgid, old->sgid)))
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return 0;
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rgid_new = rgid != (gid_t) -1 && !gid_eq(krgid, old->gid) &&
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!gid_eq(krgid, old->egid) && !gid_eq(krgid, old->sgid);
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egid_new = egid != (gid_t) -1 && !gid_eq(kegid, old->gid) &&
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!gid_eq(kegid, old->egid) && !gid_eq(kegid, old->sgid);
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sgid_new = sgid != (gid_t) -1 && !gid_eq(ksgid, old->gid) &&
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!gid_eq(ksgid, old->egid) && !gid_eq(ksgid, old->sgid);
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if ((rgid_new || egid_new || sgid_new) &&
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!ns_capable_setid(old->user_ns, CAP_SETGID))
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return -EPERM;
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new = prepare_creds();
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if (!new)
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return -ENOMEM;
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old = current_cred();
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retval = -EPERM;
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if (!ns_capable_setid(old->user_ns, CAP_SETGID)) {
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if (rgid != (gid_t) -1 && !gid_eq(krgid, old->gid) &&
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!gid_eq(krgid, old->egid) && !gid_eq(krgid, old->sgid))
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goto error;
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if (egid != (gid_t) -1 && !gid_eq(kegid, old->gid) &&
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!gid_eq(kegid, old->egid) && !gid_eq(kegid, old->sgid))
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goto error;
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if (sgid != (gid_t) -1 && !gid_eq(ksgid, old->gid) &&
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!gid_eq(ksgid, old->egid) && !gid_eq(ksgid, old->sgid))
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goto error;
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}
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if (rgid != (gid_t) -1)
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new->gid = krgid;
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|
|
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|||
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@ -4965,7 +4965,8 @@ not_found:
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* Return: True if found in a leaf, false otherwise.
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*
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*/
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static bool mas_rev_awalk(struct ma_state *mas, unsigned long size)
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static bool mas_rev_awalk(struct ma_state *mas, unsigned long size,
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unsigned long *gap_min, unsigned long *gap_max)
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{
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||||
enum maple_type type = mte_node_type(mas->node);
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||||
struct maple_node *node = mas_mn(mas);
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||||
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|
@ -5030,8 +5031,8 @@ static bool mas_rev_awalk(struct ma_state *mas, unsigned long size)
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if (unlikely(ma_is_leaf(type))) {
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mas->offset = offset;
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mas->min = min;
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mas->max = min + gap - 1;
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||||
*gap_min = min;
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*gap_max = min + gap - 1;
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return true;
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||||
}
|
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|
||||
|
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@ -5055,10 +5056,10 @@ static inline bool mas_anode_descend(struct ma_state *mas, unsigned long size)
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{
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||||
enum maple_type type = mte_node_type(mas->node);
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||||
unsigned long pivot, min, gap = 0;
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||||
unsigned char offset;
|
||||
unsigned long *gaps;
|
||||
unsigned long *pivots = ma_pivots(mas_mn(mas), type);
|
||||
void __rcu **slots = ma_slots(mas_mn(mas), type);
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||||
unsigned char offset, data_end;
|
||||
unsigned long *gaps, *pivots;
|
||||
void __rcu **slots;
|
||||
struct maple_node *node;
|
||||
bool found = false;
|
||||
|
||||
if (ma_is_dense(type)) {
|
||||
|
|
@ -5066,13 +5067,15 @@ static inline bool mas_anode_descend(struct ma_state *mas, unsigned long size)
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|||
return true;
|
||||
}
|
||||
|
||||
gaps = ma_gaps(mte_to_node(mas->node), type);
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||||
node = mas_mn(mas);
|
||||
pivots = ma_pivots(node, type);
|
||||
slots = ma_slots(node, type);
|
||||
gaps = ma_gaps(node, type);
|
||||
offset = mas->offset;
|
||||
min = mas_safe_min(mas, pivots, offset);
|
||||
for (; offset < mt_slots[type]; offset++) {
|
||||
pivot = mas_safe_pivot(mas, pivots, offset, type);
|
||||
if (offset && !pivot)
|
||||
break;
|
||||
data_end = ma_data_end(node, type, pivots, mas->max);
|
||||
for (; offset <= data_end; offset++) {
|
||||
pivot = mas_logical_pivot(mas, pivots, offset, type);
|
||||
|
||||
/* Not within lower bounds */
|
||||
if (mas->index > pivot)
|
||||
|
|
@ -5307,6 +5310,9 @@ int mas_empty_area(struct ma_state *mas, unsigned long min,
|
|||
unsigned long *pivots;
|
||||
enum maple_type mt;
|
||||
|
||||
if (min >= max)
|
||||
return -EINVAL;
|
||||
|
||||
if (mas_is_start(mas))
|
||||
mas_start(mas);
|
||||
else if (mas->offset >= 2)
|
||||
|
|
@ -5361,6 +5367,9 @@ int mas_empty_area_rev(struct ma_state *mas, unsigned long min,
|
|||
{
|
||||
struct maple_enode *last = mas->node;
|
||||
|
||||
if (min >= max)
|
||||
return -EINVAL;
|
||||
|
||||
if (mas_is_start(mas)) {
|
||||
mas_start(mas);
|
||||
mas->offset = mas_data_end(mas);
|
||||
|
|
@ -5380,7 +5389,7 @@ int mas_empty_area_rev(struct ma_state *mas, unsigned long min,
|
|||
mas->index = min;
|
||||
mas->last = max;
|
||||
|
||||
while (!mas_rev_awalk(mas, size)) {
|
||||
while (!mas_rev_awalk(mas, size, &min, &max)) {
|
||||
if (last == mas->node) {
|
||||
if (!mas_rewind_node(mas))
|
||||
return -EBUSY;
|
||||
|
|
@ -5395,17 +5404,9 @@ int mas_empty_area_rev(struct ma_state *mas, unsigned long min,
|
|||
if (unlikely(mas->offset == MAPLE_NODE_SLOTS))
|
||||
return -EBUSY;
|
||||
|
||||
/*
|
||||
* mas_rev_awalk() has set mas->min and mas->max to the gap values. If
|
||||
* the maximum is outside the window we are searching, then use the last
|
||||
* location in the search.
|
||||
* mas->max and mas->min is the range of the gap.
|
||||
* mas->index and mas->last are currently set to the search range.
|
||||
*/
|
||||
|
||||
/* Trim the upper limit to the max. */
|
||||
if (mas->max <= mas->last)
|
||||
mas->last = mas->max;
|
||||
if (max <= mas->last)
|
||||
mas->last = max;
|
||||
|
||||
mas->index = mas->last - size + 1;
|
||||
return 0;
|
||||
|
|
|
|||
|
|
@ -148,35 +148,74 @@ void kmsan_vunmap_range_noflush(unsigned long start, unsigned long end)
|
|||
* into the virtual memory. If those physical pages already had shadow/origin,
|
||||
* those are ignored.
|
||||
*/
|
||||
void kmsan_ioremap_page_range(unsigned long start, unsigned long end,
|
||||
phys_addr_t phys_addr, pgprot_t prot,
|
||||
unsigned int page_shift)
|
||||
int kmsan_ioremap_page_range(unsigned long start, unsigned long end,
|
||||
phys_addr_t phys_addr, pgprot_t prot,
|
||||
unsigned int page_shift)
|
||||
{
|
||||
gfp_t gfp_mask = GFP_KERNEL | __GFP_ZERO;
|
||||
struct page *shadow, *origin;
|
||||
unsigned long off = 0;
|
||||
int nr;
|
||||
int nr, err = 0, clean = 0, mapped;
|
||||
|
||||
if (!kmsan_enabled || kmsan_in_runtime())
|
||||
return;
|
||||
return 0;
|
||||
|
||||
nr = (end - start) / PAGE_SIZE;
|
||||
kmsan_enter_runtime();
|
||||
for (int i = 0; i < nr; i++, off += PAGE_SIZE) {
|
||||
for (int i = 0; i < nr; i++, off += PAGE_SIZE, clean = i) {
|
||||
shadow = alloc_pages(gfp_mask, 1);
|
||||
origin = alloc_pages(gfp_mask, 1);
|
||||
__vmap_pages_range_noflush(
|
||||
if (!shadow || !origin) {
|
||||
err = -ENOMEM;
|
||||
goto ret;
|
||||
}
|
||||
mapped = __vmap_pages_range_noflush(
|
||||
vmalloc_shadow(start + off),
|
||||
vmalloc_shadow(start + off + PAGE_SIZE), prot, &shadow,
|
||||
PAGE_SHIFT);
|
||||
__vmap_pages_range_noflush(
|
||||
if (mapped) {
|
||||
err = mapped;
|
||||
goto ret;
|
||||
}
|
||||
shadow = NULL;
|
||||
mapped = __vmap_pages_range_noflush(
|
||||
vmalloc_origin(start + off),
|
||||
vmalloc_origin(start + off + PAGE_SIZE), prot, &origin,
|
||||
PAGE_SHIFT);
|
||||
if (mapped) {
|
||||
__vunmap_range_noflush(
|
||||
vmalloc_shadow(start + off),
|
||||
vmalloc_shadow(start + off + PAGE_SIZE));
|
||||
err = mapped;
|
||||
goto ret;
|
||||
}
|
||||
origin = NULL;
|
||||
}
|
||||
/* Page mapping loop finished normally, nothing to clean up. */
|
||||
clean = 0;
|
||||
|
||||
ret:
|
||||
if (clean > 0) {
|
||||
/*
|
||||
* Something went wrong. Clean up shadow/origin pages allocated
|
||||
* on the last loop iteration, then delete mappings created
|
||||
* during the previous iterations.
|
||||
*/
|
||||
if (shadow)
|
||||
__free_pages(shadow, 1);
|
||||
if (origin)
|
||||
__free_pages(origin, 1);
|
||||
__vunmap_range_noflush(
|
||||
vmalloc_shadow(start),
|
||||
vmalloc_shadow(start + clean * PAGE_SIZE));
|
||||
__vunmap_range_noflush(
|
||||
vmalloc_origin(start),
|
||||
vmalloc_origin(start + clean * PAGE_SIZE));
|
||||
}
|
||||
flush_cache_vmap(vmalloc_shadow(start), vmalloc_shadow(end));
|
||||
flush_cache_vmap(vmalloc_origin(start), vmalloc_origin(end));
|
||||
kmsan_leave_runtime();
|
||||
return err;
|
||||
}
|
||||
|
||||
void kmsan_iounmap_page_range(unsigned long start, unsigned long end)
|
||||
|
|
|
|||
|
|
@ -216,27 +216,29 @@ void kmsan_free_page(struct page *page, unsigned int order)
|
|||
kmsan_leave_runtime();
|
||||
}
|
||||
|
||||
void kmsan_vmap_pages_range_noflush(unsigned long start, unsigned long end,
|
||||
pgprot_t prot, struct page **pages,
|
||||
unsigned int page_shift)
|
||||
int kmsan_vmap_pages_range_noflush(unsigned long start, unsigned long end,
|
||||
pgprot_t prot, struct page **pages,
|
||||
unsigned int page_shift)
|
||||
{
|
||||
unsigned long shadow_start, origin_start, shadow_end, origin_end;
|
||||
struct page **s_pages, **o_pages;
|
||||
int nr, mapped;
|
||||
int nr, mapped, err = 0;
|
||||
|
||||
if (!kmsan_enabled)
|
||||
return;
|
||||
return 0;
|
||||
|
||||
shadow_start = vmalloc_meta((void *)start, KMSAN_META_SHADOW);
|
||||
shadow_end = vmalloc_meta((void *)end, KMSAN_META_SHADOW);
|
||||
if (!shadow_start)
|
||||
return;
|
||||
return 0;
|
||||
|
||||
nr = (end - start) / PAGE_SIZE;
|
||||
s_pages = kcalloc(nr, sizeof(*s_pages), GFP_KERNEL);
|
||||
o_pages = kcalloc(nr, sizeof(*o_pages), GFP_KERNEL);
|
||||
if (!s_pages || !o_pages)
|
||||
if (!s_pages || !o_pages) {
|
||||
err = -ENOMEM;
|
||||
goto ret;
|
||||
}
|
||||
for (int i = 0; i < nr; i++) {
|
||||
s_pages[i] = shadow_page_for(pages[i]);
|
||||
o_pages[i] = origin_page_for(pages[i]);
|
||||
|
|
@ -249,10 +251,16 @@ void kmsan_vmap_pages_range_noflush(unsigned long start, unsigned long end,
|
|||
kmsan_enter_runtime();
|
||||
mapped = __vmap_pages_range_noflush(shadow_start, shadow_end, prot,
|
||||
s_pages, page_shift);
|
||||
KMSAN_WARN_ON(mapped);
|
||||
if (mapped) {
|
||||
err = mapped;
|
||||
goto ret;
|
||||
}
|
||||
mapped = __vmap_pages_range_noflush(origin_start, origin_end, prot,
|
||||
o_pages, page_shift);
|
||||
KMSAN_WARN_ON(mapped);
|
||||
if (mapped) {
|
||||
err = mapped;
|
||||
goto ret;
|
||||
}
|
||||
kmsan_leave_runtime();
|
||||
flush_tlb_kernel_range(shadow_start, shadow_end);
|
||||
flush_tlb_kernel_range(origin_start, origin_end);
|
||||
|
|
@ -262,6 +270,7 @@ void kmsan_vmap_pages_range_noflush(unsigned long start, unsigned long end,
|
|||
ret:
|
||||
kfree(s_pages);
|
||||
kfree(o_pages);
|
||||
return err;
|
||||
}
|
||||
|
||||
/* Allocate metadata for pages allocated at boot time. */
|
||||
|
|
|
|||
48
mm/mmap.c
48
mm/mmap.c
|
|
@ -1547,7 +1547,8 @@ static inline int accountable_mapping(struct file *file, vm_flags_t vm_flags)
|
|||
*/
|
||||
static unsigned long unmapped_area(struct vm_unmapped_area_info *info)
|
||||
{
|
||||
unsigned long length, gap;
|
||||
unsigned long length, gap, low_limit;
|
||||
struct vm_area_struct *tmp;
|
||||
|
||||
MA_STATE(mas, ¤t->mm->mm_mt, 0, 0);
|
||||
|
||||
|
|
@ -1556,12 +1557,29 @@ static unsigned long unmapped_area(struct vm_unmapped_area_info *info)
|
|||
if (length < info->length)
|
||||
return -ENOMEM;
|
||||
|
||||
if (mas_empty_area(&mas, info->low_limit, info->high_limit - 1,
|
||||
length))
|
||||
low_limit = info->low_limit;
|
||||
retry:
|
||||
if (mas_empty_area(&mas, low_limit, info->high_limit - 1, length))
|
||||
return -ENOMEM;
|
||||
|
||||
gap = mas.index;
|
||||
gap += (info->align_offset - gap) & info->align_mask;
|
||||
tmp = mas_next(&mas, ULONG_MAX);
|
||||
if (tmp && (tmp->vm_flags & VM_GROWSDOWN)) { /* Avoid prev check if possible */
|
||||
if (vm_start_gap(tmp) < gap + length - 1) {
|
||||
low_limit = tmp->vm_end;
|
||||
mas_reset(&mas);
|
||||
goto retry;
|
||||
}
|
||||
} else {
|
||||
tmp = mas_prev(&mas, 0);
|
||||
if (tmp && vm_end_gap(tmp) > gap) {
|
||||
low_limit = vm_end_gap(tmp);
|
||||
mas_reset(&mas);
|
||||
goto retry;
|
||||
}
|
||||
}
|
||||
|
||||
return gap;
|
||||
}
|
||||
|
||||
|
|
@ -1577,7 +1595,8 @@ static unsigned long unmapped_area(struct vm_unmapped_area_info *info)
|
|||
*/
|
||||
static unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info)
|
||||
{
|
||||
unsigned long length, gap;
|
||||
unsigned long length, gap, high_limit, gap_end;
|
||||
struct vm_area_struct *tmp;
|
||||
|
||||
MA_STATE(mas, ¤t->mm->mm_mt, 0, 0);
|
||||
/* Adjust search length to account for worst case alignment overhead */
|
||||
|
|
@ -1585,12 +1604,31 @@ static unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info)
|
|||
if (length < info->length)
|
||||
return -ENOMEM;
|
||||
|
||||
if (mas_empty_area_rev(&mas, info->low_limit, info->high_limit - 1,
|
||||
high_limit = info->high_limit;
|
||||
retry:
|
||||
if (mas_empty_area_rev(&mas, info->low_limit, high_limit - 1,
|
||||
length))
|
||||
return -ENOMEM;
|
||||
|
||||
gap = mas.last + 1 - info->length;
|
||||
gap -= (gap - info->align_offset) & info->align_mask;
|
||||
gap_end = mas.last;
|
||||
tmp = mas_next(&mas, ULONG_MAX);
|
||||
if (tmp && (tmp->vm_flags & VM_GROWSDOWN)) { /* Avoid prev check if possible */
|
||||
if (vm_start_gap(tmp) <= gap_end) {
|
||||
high_limit = vm_start_gap(tmp);
|
||||
mas_reset(&mas);
|
||||
goto retry;
|
||||
}
|
||||
} else {
|
||||
tmp = mas_prev(&mas, 0);
|
||||
if (tmp && vm_end_gap(tmp) > gap) {
|
||||
high_limit = tmp->vm_start;
|
||||
mas_reset(&mas);
|
||||
goto retry;
|
||||
}
|
||||
}
|
||||
|
||||
return gap;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -5796,7 +5796,21 @@ static void __build_all_zonelists(void *data)
|
|||
int nid;
|
||||
int __maybe_unused cpu;
|
||||
pg_data_t *self = data;
|
||||
unsigned long flags;
|
||||
|
||||
/*
|
||||
* Explicitly disable this CPU's interrupts before taking seqlock
|
||||
* to prevent any IRQ handler from calling into the page allocator
|
||||
* (e.g. GFP_ATOMIC) that could hit zonelist_iter_begin and livelock.
|
||||
*/
|
||||
local_irq_save(flags);
|
||||
/*
|
||||
* Explicitly disable this CPU's synchronous printk() before taking
|
||||
* seqlock to prevent any printk() from trying to hold port->lock, for
|
||||
* tty_insert_flip_string_and_push_buffer() on other CPU might be
|
||||
* calling kmalloc(GFP_ATOMIC | __GFP_NOWARN) with port->lock held.
|
||||
*/
|
||||
printk_deferred_enter();
|
||||
write_seqlock(&zonelist_update_seq);
|
||||
|
||||
#ifdef CONFIG_NUMA
|
||||
|
|
@ -5835,6 +5849,8 @@ static void __build_all_zonelists(void *data)
|
|||
}
|
||||
|
||||
write_sequnlock(&zonelist_update_seq);
|
||||
printk_deferred_exit();
|
||||
local_irq_restore(flags);
|
||||
}
|
||||
|
||||
static noinline void __init
|
||||
|
|
@ -6884,6 +6900,9 @@ static bool pfn_range_valid_contig(struct zone *z, unsigned long start_pfn,
|
|||
|
||||
if (PageReserved(page))
|
||||
return false;
|
||||
|
||||
if (PageHuge(page))
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
|
|
|||
10
mm/vmalloc.c
10
mm/vmalloc.c
|
|
@ -313,8 +313,8 @@ int ioremap_page_range(unsigned long addr, unsigned long end,
|
|||
ioremap_max_page_shift);
|
||||
flush_cache_vmap(addr, end);
|
||||
if (!err)
|
||||
kmsan_ioremap_page_range(addr, end, phys_addr, prot,
|
||||
ioremap_max_page_shift);
|
||||
err = kmsan_ioremap_page_range(addr, end, phys_addr, prot,
|
||||
ioremap_max_page_shift);
|
||||
return err;
|
||||
}
|
||||
|
||||
|
|
@ -605,7 +605,11 @@ int __vmap_pages_range_noflush(unsigned long addr, unsigned long end,
|
|||
int vmap_pages_range_noflush(unsigned long addr, unsigned long end,
|
||||
pgprot_t prot, struct page **pages, unsigned int page_shift)
|
||||
{
|
||||
kmsan_vmap_pages_range_noflush(addr, end, prot, pages, page_shift);
|
||||
int ret = kmsan_vmap_pages_range_noflush(addr, end, prot, pages,
|
||||
page_shift);
|
||||
|
||||
if (ret)
|
||||
return ret;
|
||||
return __vmap_pages_range_noflush(addr, end, prot, pages, page_shift);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -39,7 +39,7 @@ help:
|
|||
@echo ' turbostat - Intel CPU idle stats and freq reporting tool'
|
||||
@echo ' usb - USB testing tools'
|
||||
@echo ' virtio - vhost test module'
|
||||
@echo ' vm - misc vm tools'
|
||||
@echo ' mm - misc mm tools'
|
||||
@echo ' wmi - WMI interface examples'
|
||||
@echo ' x86_energy_perf_policy - Intel energy policy tool'
|
||||
@echo ''
|
||||
|
|
@ -69,7 +69,7 @@ acpi: FORCE
|
|||
cpupower: FORCE
|
||||
$(call descend,power/$@)
|
||||
|
||||
cgroup counter firewire hv guest bootconfig spi usb virtio vm bpf iio gpio objtool leds wmi pci firmware debugging tracing: FORCE
|
||||
cgroup counter firewire hv guest bootconfig spi usb virtio mm bpf iio gpio objtool leds wmi pci firmware debugging tracing: FORCE
|
||||
$(call descend,$@)
|
||||
|
||||
bpf/%: FORCE
|
||||
|
|
@ -118,7 +118,7 @@ kvm_stat: FORCE
|
|||
|
||||
all: acpi cgroup counter cpupower gpio hv firewire \
|
||||
perf selftests bootconfig spi turbostat usb \
|
||||
virtio vm bpf x86_energy_perf_policy \
|
||||
virtio mm bpf x86_energy_perf_policy \
|
||||
tmon freefall iio objtool kvm_stat wmi \
|
||||
pci debugging tracing thermal thermometer thermal-engine
|
||||
|
||||
|
|
@ -128,7 +128,7 @@ acpi_install:
|
|||
cpupower_install:
|
||||
$(call descend,power/$(@:_install=),install)
|
||||
|
||||
cgroup_install counter_install firewire_install gpio_install hv_install iio_install perf_install bootconfig_install spi_install usb_install virtio_install vm_install bpf_install objtool_install wmi_install pci_install debugging_install tracing_install:
|
||||
cgroup_install counter_install firewire_install gpio_install hv_install iio_install perf_install bootconfig_install spi_install usb_install virtio_install mm_install bpf_install objtool_install wmi_install pci_install debugging_install tracing_install:
|
||||
$(call descend,$(@:_install=),install)
|
||||
|
||||
selftests_install:
|
||||
|
|
@ -158,7 +158,7 @@ kvm_stat_install:
|
|||
install: acpi_install cgroup_install counter_install cpupower_install gpio_install \
|
||||
hv_install firewire_install iio_install \
|
||||
perf_install selftests_install turbostat_install usb_install \
|
||||
virtio_install vm_install bpf_install x86_energy_perf_policy_install \
|
||||
virtio_install mm_install bpf_install x86_energy_perf_policy_install \
|
||||
tmon_install freefall_install objtool_install kvm_stat_install \
|
||||
wmi_install pci_install debugging_install intel-speed-select_install \
|
||||
tracing_install thermometer_install thermal-engine_install
|
||||
|
|
@ -169,7 +169,7 @@ acpi_clean:
|
|||
cpupower_clean:
|
||||
$(call descend,power/cpupower,clean)
|
||||
|
||||
cgroup_clean counter_clean hv_clean firewire_clean bootconfig_clean spi_clean usb_clean virtio_clean vm_clean wmi_clean bpf_clean iio_clean gpio_clean objtool_clean leds_clean pci_clean firmware_clean debugging_clean tracing_clean:
|
||||
cgroup_clean counter_clean hv_clean firewire_clean bootconfig_clean spi_clean usb_clean virtio_clean mm_clean wmi_clean bpf_clean iio_clean gpio_clean objtool_clean leds_clean pci_clean firmware_clean debugging_clean tracing_clean:
|
||||
$(call descend,$(@:_clean=),clean)
|
||||
|
||||
libapi_clean:
|
||||
|
|
@ -211,7 +211,7 @@ build_clean:
|
|||
|
||||
clean: acpi_clean cgroup_clean counter_clean cpupower_clean hv_clean firewire_clean \
|
||||
perf_clean selftests_clean turbostat_clean bootconfig_clean spi_clean usb_clean virtio_clean \
|
||||
vm_clean bpf_clean iio_clean x86_energy_perf_policy_clean tmon_clean \
|
||||
mm_clean bpf_clean iio_clean x86_energy_perf_policy_clean tmon_clean \
|
||||
freefall_clean build_clean libbpf_clean libsubcmd_clean \
|
||||
gpio_clean objtool_clean leds_clean wmi_clean pci_clean firmware_clean debugging_clean \
|
||||
intel-speed-select_clean tracing_clean thermal_clean thermometer_clean thermal-engine_clean
|
||||
|
|
|
|||
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