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-rw-r--r--fs/cifs/cifsfs.c2
-rw-r--r--fs/cifs/smb2ops.c8
-rw-r--r--fs/ext4/ext4.h4
-rw-r--r--fs/ext4/inode.c11
-rw-r--r--fs/ext4/namei.c4
-rw-r--r--fs/ext4/page-io.c4
-rw-r--r--fs/ext4/super.c19
-rw-r--r--fs/gfs2/rgrp.c9
-rw-r--r--fs/hugetlbfs/inode.c70
-rw-r--r--fs/jbd2/commit.c4
-rw-r--r--fs/stat.c19
11 files changed, 122 insertions, 32 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index f44b6f9d0777..79a18692b84c 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -889,7 +889,7 @@ cifs_loose_read_iter(struct kiocb *iocb, struct iov_iter *iter)
ssize_t rc;
struct inode *inode = file_inode(iocb->ki_filp);
- if (iocb->ki_filp->f_flags & O_DIRECT)
+ if (iocb->ki_flags & IOCB_DIRECT)
return cifs_user_readv(iocb, iter);
rc = cifs_revalidate_mapping(inode);
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index defee1d208d2..7985fe25850b 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -1643,9 +1643,17 @@ smb2_copychunk_range(const unsigned int xid,
int chunks_copied = 0;
bool chunk_sizes_updated = false;
ssize_t bytes_written, total_bytes_written = 0;
+ struct inode *inode;
pcchunk = kmalloc(sizeof(struct copychunk_ioctl), GFP_KERNEL);
+ /*
+ * We need to flush all unwritten data before we can send the
+ * copychunk ioctl to the server.
+ */
+ inode = d_inode(trgtfile->dentry);
+ filemap_write_and_wait(inode->i_mapping);
+
if (pcchunk == NULL)
return -ENOMEM;
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index ae2cb15d9540..e932e8482371 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1966,6 +1966,10 @@ static inline int ext4_forced_shutdown(struct ext4_sb_info *sbi)
* Structure of a directory entry
*/
#define EXT4_NAME_LEN 255
+/*
+ * Base length of the ext4 directory entry excluding the name length
+ */
+#define EXT4_BASE_DIR_LEN (sizeof(struct ext4_dir_entry_2) - EXT4_NAME_LEN)
struct ext4_dir_entry {
__le32 inode; /* Inode number */
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 0d62f05f8925..00686fbe3c27 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4311,7 +4311,8 @@ int ext4_punch_hole(struct inode *inode, loff_t offset, loff_t length)
struct super_block *sb = inode->i_sb;
ext4_lblk_t first_block, stop_block;
struct address_space *mapping = inode->i_mapping;
- loff_t first_block_offset, last_block_offset;
+ loff_t first_block_offset, last_block_offset, max_length;
+ struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
handle_t *handle;
unsigned int credits;
int ret = 0;
@@ -4357,6 +4358,14 @@ int ext4_punch_hole(struct inode *inode, loff_t offset, loff_t length)
offset;
}
+ /*
+ * For punch hole the length + offset needs to be within one block
+ * before last range. Adjust the length if it goes beyond that limit.
+ */
+ max_length = sbi->s_bitmap_maxbytes - inode->i_sb->s_blocksize;
+ if (offset + length > max_length)
+ length = max_length - offset;
+
if (offset & (sb->s_blocksize - 1) ||
(offset + length) & (sb->s_blocksize - 1)) {
/*
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 9905720df924..f10307215d58 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1385,10 +1385,10 @@ int ext4_search_dir(struct buffer_head *bh, char *search_buf, int buf_size,
de = (struct ext4_dir_entry_2 *)search_buf;
dlimit = search_buf + buf_size;
- while ((char *) de < dlimit) {
+ while ((char *) de < dlimit - EXT4_BASE_DIR_LEN) {
/* this code is executed quadratically often */
/* do minimal checking `by hand' */
- if ((char *) de + de->name_len <= dlimit &&
+ if (de->name + de->name_len <= dlimit &&
ext4_match(dir, fname, de)) {
/* found a match - just to be sure, do
* a full check */
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index 2cc9f2168b9e..b66b335a0ca6 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -100,8 +100,10 @@ static void ext4_finish_bio(struct bio *bio)
continue;
}
clear_buffer_async_write(bh);
- if (bio->bi_status)
+ if (bio->bi_status) {
+ set_buffer_write_io_error(bh);
buffer_io_error(bh);
+ }
} while ((bh = bh->b_this_page) != head);
bit_spin_unlock(BH_Uptodate_Lock, &head->b_state);
local_irq_restore(flags);
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 5bc7fd0240a1..c13879bd2168 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3485,9 +3485,11 @@ static int count_overhead(struct super_block *sb, ext4_group_t grp,
ext4_fsblk_t first_block, last_block, b;
ext4_group_t i, ngroups = ext4_get_groups_count(sb);
int s, j, count = 0;
+ int has_super = ext4_bg_has_super(sb, grp);
if (!ext4_has_feature_bigalloc(sb))
- return (ext4_bg_has_super(sb, grp) + ext4_bg_num_gdb(sb, grp) +
+ return (has_super + ext4_bg_num_gdb(sb, grp) +
+ (has_super ? le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) : 0) +
sbi->s_itb_per_group + 2);
first_block = le32_to_cpu(sbi->s_es->s_first_data_block) +
@@ -4512,9 +4514,18 @@ no_journal:
* Get the # of file system overhead blocks from the
* superblock if present.
*/
- if (es->s_overhead_clusters)
- sbi->s_overhead = le32_to_cpu(es->s_overhead_clusters);
- else {
+ sbi->s_overhead = le32_to_cpu(es->s_overhead_clusters);
+ /* ignore the precalculated value if it is ridiculous */
+ if (sbi->s_overhead > ext4_blocks_count(es))
+ sbi->s_overhead = 0;
+ /*
+ * If the bigalloc feature is not enabled recalculating the
+ * overhead doesn't take long, so we might as well just redo
+ * it to make sure we are using the correct value.
+ */
+ if (!ext4_has_feature_bigalloc(sb))
+ sbi->s_overhead = 0;
+ if (sbi->s_overhead == 0) {
err = ext4_calculate_overhead(sb);
if (err)
goto failed_mount_wq;
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index d7ec0ac87fc0..8153a3eac540 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -925,15 +925,15 @@ static int read_rindex_entry(struct gfs2_inode *ip)
rgd->rd_bitbytes = be32_to_cpu(buf.ri_bitbytes);
spin_lock_init(&rgd->rd_rsspin);
- error = compute_bitstructs(rgd);
- if (error)
- goto fail;
-
error = gfs2_glock_get(sdp, rgd->rd_addr,
&gfs2_rgrp_glops, CREATE, &rgd->rd_gl);
if (error)
goto fail;
+ error = compute_bitstructs(rgd);
+ if (error)
+ goto fail_glock;
+
rgd->rd_rgl = (struct gfs2_rgrp_lvb *)rgd->rd_gl->gl_lksb.sb_lvbptr;
rgd->rd_flags &= ~(GFS2_RDF_UPTODATE | GFS2_RDF_PREFERRED);
if (rgd->rd_data > sdp->sd_max_rg_data)
@@ -950,6 +950,7 @@ static int read_rindex_entry(struct gfs2_inode *ip)
}
error = 0; /* someone else read in the rgrp; free it and ignore it */
+fail_glock:
gfs2_glock_put(rgd->rd_gl);
fail:
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 358398b1fe0c..7d039ba5ae28 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -38,6 +38,7 @@
#include <linux/uio.h>
#include <linux/uaccess.h>
+#include <linux/sched/mm.h>
static const struct super_operations hugetlbfs_ops;
static const struct address_space_operations hugetlbfs_aops;
@@ -201,13 +202,61 @@ out:
#ifndef HAVE_ARCH_HUGETLB_UNMAPPED_AREA
static unsigned long
+hugetlb_get_unmapped_area_bottomup(struct file *file, unsigned long addr,
+ unsigned long len, unsigned long pgoff, unsigned long flags)
+{
+ struct hstate *h = hstate_file(file);
+ struct vm_unmapped_area_info info;
+
+ info.flags = 0;
+ info.length = len;
+ info.low_limit = current->mm->mmap_base;
+ info.high_limit = arch_get_mmap_end(addr);
+ info.align_mask = PAGE_MASK & ~huge_page_mask(h);
+ info.align_offset = 0;
+ return vm_unmapped_area(&info);
+}
+
+static unsigned long
+hugetlb_get_unmapped_area_topdown(struct file *file, unsigned long addr,
+ unsigned long len, unsigned long pgoff, unsigned long flags)
+{
+ struct hstate *h = hstate_file(file);
+ struct vm_unmapped_area_info info;
+
+ info.flags = VM_UNMAPPED_AREA_TOPDOWN;
+ info.length = len;
+ info.low_limit = max(PAGE_SIZE, mmap_min_addr);
+ info.high_limit = arch_get_mmap_base(addr, current->mm->mmap_base);
+ info.align_mask = PAGE_MASK & ~huge_page_mask(h);
+ info.align_offset = 0;
+ addr = vm_unmapped_area(&info);
+
+ /*
+ * A failed mmap() very likely causes application failure,
+ * so fall back to the bottom-up function here. This scenario
+ * can happen with large stack limits and large mmap()
+ * allocations.
+ */
+ if (unlikely(offset_in_page(addr))) {
+ VM_BUG_ON(addr != -ENOMEM);
+ info.flags = 0;
+ info.low_limit = current->mm->mmap_base;
+ info.high_limit = arch_get_mmap_end(addr);
+ addr = vm_unmapped_area(&info);
+ }
+
+ return addr;
+}
+
+static unsigned long
hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
unsigned long len, unsigned long pgoff, unsigned long flags)
{
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
struct hstate *h = hstate_file(file);
- struct vm_unmapped_area_info info;
+ const unsigned long mmap_end = arch_get_mmap_end(addr);
if (len & ~huge_page_mask(h))
return -EINVAL;
@@ -223,18 +272,21 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
if (addr) {
addr = ALIGN(addr, huge_page_size(h));
vma = find_vma(mm, addr);
- if (TASK_SIZE - len >= addr &&
+ if (mmap_end - len >= addr &&
(!vma || addr + len <= vm_start_gap(vma)))
return addr;
}
- info.flags = 0;
- info.length = len;
- info.low_limit = TASK_UNMAPPED_BASE;
- info.high_limit = TASK_SIZE;
- info.align_mask = PAGE_MASK & ~huge_page_mask(h);
- info.align_offset = 0;
- return vm_unmapped_area(&info);
+ /*
+ * Use mm->get_unmapped_area value as a hint to use topdown routine.
+ * If architectures have special needs, they should define their own
+ * version of hugetlb_get_unmapped_area.
+ */
+ if (mm->get_unmapped_area == arch_get_unmapped_area_topdown)
+ return hugetlb_get_unmapped_area_topdown(file, addr, len,
+ pgoff, flags);
+ return hugetlb_get_unmapped_area_bottomup(file, addr, len,
+ pgoff, flags);
}
#endif
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 88146008b3e3..d45ceb2e2149 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -451,7 +451,6 @@ void jbd2_journal_commit_transaction(journal_t *journal)
}
spin_unlock(&commit_transaction->t_handle_lock);
commit_transaction->t_state = T_SWITCH;
- write_unlock(&journal->j_state_lock);
J_ASSERT (atomic_read(&commit_transaction->t_outstanding_credits) <=
journal->j_max_transaction_buffers);
@@ -471,6 +470,8 @@ void jbd2_journal_commit_transaction(journal_t *journal)
* has reserved. This is consistent with the existing behaviour
* that multiple jbd2_journal_get_write_access() calls to the same
* buffer are perfectly permissible.
+ * We use journal->j_state_lock here to serialize processing of
+ * t_reserved_list with eviction of buffers from journal_unmap_buffer().
*/
while (commit_transaction->t_reserved_list) {
jh = commit_transaction->t_reserved_list;
@@ -490,6 +491,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
jbd2_journal_refile_buffer(journal, jh);
}
+ write_unlock(&journal->j_state_lock);
/*
* Now try to drop any written-back buffers from the journal's
* checkpoint lists. We do this *before* commit because it potentially
diff --git a/fs/stat.c b/fs/stat.c
index c38e4c2e1221..268c9eb89656 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -290,9 +290,6 @@ SYSCALL_DEFINE2(fstat, unsigned int, fd, struct __old_kernel_stat __user *, stat
# define choose_32_64(a,b) b
#endif
-#define valid_dev(x) choose_32_64(old_valid_dev(x),true)
-#define encode_dev(x) choose_32_64(old_encode_dev,new_encode_dev)(x)
-
#ifndef INIT_STRUCT_STAT_PADDING
# define INIT_STRUCT_STAT_PADDING(st) memset(&st, 0, sizeof(st))
#endif
@@ -301,7 +298,9 @@ static int cp_new_stat(struct kstat *stat, struct stat __user *statbuf)
{
struct stat tmp;
- if (!valid_dev(stat->dev) || !valid_dev(stat->rdev))
+ if (sizeof(tmp.st_dev) < 4 && !old_valid_dev(stat->dev))
+ return -EOVERFLOW;
+ if (sizeof(tmp.st_rdev) < 4 && !old_valid_dev(stat->rdev))
return -EOVERFLOW;
#if BITS_PER_LONG == 32
if (stat->size > MAX_NON_LFS)
@@ -309,7 +308,7 @@ static int cp_new_stat(struct kstat *stat, struct stat __user *statbuf)
#endif
INIT_STRUCT_STAT_PADDING(tmp);
- tmp.st_dev = encode_dev(stat->dev);
+ tmp.st_dev = new_encode_dev(stat->dev);
tmp.st_ino = stat->ino;
if (sizeof(tmp.st_ino) < sizeof(stat->ino) && tmp.st_ino != stat->ino)
return -EOVERFLOW;
@@ -319,7 +318,7 @@ static int cp_new_stat(struct kstat *stat, struct stat __user *statbuf)
return -EOVERFLOW;
SET_UID(tmp.st_uid, from_kuid_munged(current_user_ns(), stat->uid));
SET_GID(tmp.st_gid, from_kgid_munged(current_user_ns(), stat->gid));
- tmp.st_rdev = encode_dev(stat->rdev);
+ tmp.st_rdev = new_encode_dev(stat->rdev);
tmp.st_size = stat->size;
tmp.st_atime = stat->atime.tv_sec;
tmp.st_mtime = stat->mtime.tv_sec;
@@ -593,11 +592,13 @@ static int cp_compat_stat(struct kstat *stat, struct compat_stat __user *ubuf)
{
struct compat_stat tmp;
- if (!old_valid_dev(stat->dev) || !old_valid_dev(stat->rdev))
+ if (sizeof(tmp.st_dev) < 4 && !old_valid_dev(stat->dev))
+ return -EOVERFLOW;
+ if (sizeof(tmp.st_rdev) < 4 && !old_valid_dev(stat->rdev))
return -EOVERFLOW;
memset(&tmp, 0, sizeof(tmp));
- tmp.st_dev = old_encode_dev(stat->dev);
+ tmp.st_dev = new_encode_dev(stat->dev);
tmp.st_ino = stat->ino;
if (sizeof(tmp.st_ino) < sizeof(stat->ino) && tmp.st_ino != stat->ino)
return -EOVERFLOW;
@@ -607,7 +608,7 @@ static int cp_compat_stat(struct kstat *stat, struct compat_stat __user *ubuf)
return -EOVERFLOW;
SET_UID(tmp.st_uid, from_kuid_munged(current_user_ns(), stat->uid));
SET_GID(tmp.st_gid, from_kgid_munged(current_user_ns(), stat->gid));
- tmp.st_rdev = old_encode_dev(stat->rdev);
+ tmp.st_rdev = new_encode_dev(stat->rdev);
if ((u64) stat->size > MAX_NON_LFS)
return -EOVERFLOW;
tmp.st_size = stat->size;
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-06-02 14:09:33 +0000