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Diffstat (limited to 'fs/ntfs3/file.c')
-rw-r--r--fs/ntfs3/file.c87
1 files changed, 59 insertions, 28 deletions
diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c
index 34ed242e1063..c1ece707b195 100644
--- a/fs/ntfs3/file.c
+++ b/fs/ntfs3/file.c
@@ -57,6 +57,10 @@ long ntfs_ioctl(struct file *filp, u32 cmd, unsigned long arg)
struct inode *inode = file_inode(filp);
struct ntfs_sb_info *sbi = inode->i_sb->s_fs_info;
+ /* Avoid any operation if inode is bad. */
+ if (unlikely(is_bad_ni(ntfs_i(inode))))
+ return -EINVAL;
+
switch (cmd) {
case FITRIM:
return ntfs_ioctl_fitrim(sbi, arg);
@@ -81,6 +85,10 @@ int ntfs_getattr(struct mnt_idmap *idmap, const struct path *path,
struct inode *inode = d_inode(path->dentry);
struct ntfs_inode *ni = ntfs_i(inode);
+ /* Avoid any operation if inode is bad. */
+ if (unlikely(is_bad_ni(ni)))
+ return -EINVAL;
+
stat->result_mask |= STATX_BTIME;
stat->btime = ni->i_crtime;
stat->blksize = ni->mi.sbi->cluster_size; /* 512, 1K, ..., 2M */
@@ -154,13 +162,13 @@ static int ntfs_extend_initialized_size(struct file *file,
if (pos + len > new_valid)
len = new_valid - pos;
- err = ntfs_write_begin(file, mapping, pos, len, &folio, NULL);
+ err = ntfs_write_begin(NULL, mapping, pos, len, &folio, NULL);
if (err)
goto out;
folio_zero_range(folio, zerofrom, folio_size(folio) - zerofrom);
- err = ntfs_write_end(file, mapping, pos, len, len, folio, NULL);
+ err = ntfs_write_end(NULL, mapping, pos, len, len, folio, NULL);
if (err < 0)
goto out;
pos += len;
@@ -261,16 +269,21 @@ out:
}
/*
- * ntfs_file_mmap - file_operations::mmap
+ * ntfs_file_mmap_prepare - file_operations::mmap_prepare
*/
-static int ntfs_file_mmap(struct file *file, struct vm_area_struct *vma)
+static int ntfs_file_mmap_prepare(struct vm_area_desc *desc)
{
+ struct file *file = desc->file;
struct inode *inode = file_inode(file);
struct ntfs_inode *ni = ntfs_i(inode);
- u64 from = ((u64)vma->vm_pgoff << PAGE_SHIFT);
- bool rw = vma->vm_flags & VM_WRITE;
+ u64 from = ((u64)desc->pgoff << PAGE_SHIFT);
+ bool rw = desc->vm_flags & VM_WRITE;
int err;
+ /* Avoid any operation if inode is bad. */
+ if (unlikely(is_bad_ni(ni)))
+ return -EINVAL;
+
if (unlikely(ntfs3_forced_shutdown(inode->i_sb)))
return -EIO;
@@ -291,7 +304,7 @@ static int ntfs_file_mmap(struct file *file, struct vm_area_struct *vma)
if (rw) {
u64 to = min_t(loff_t, i_size_read(inode),
- from + vma->vm_end - vma->vm_start);
+ from + desc->end - desc->start);
if (is_sparsed(ni)) {
/* Allocate clusters for rw map. */
@@ -310,7 +323,10 @@ static int ntfs_file_mmap(struct file *file, struct vm_area_struct *vma)
}
if (ni->i_valid < to) {
- inode_lock(inode);
+ if (!inode_trylock(inode)) {
+ err = -EAGAIN;
+ goto out;
+ }
err = ntfs_extend_initialized_size(file, ni,
ni->i_valid, to);
inode_unlock(inode);
@@ -319,7 +335,7 @@ static int ntfs_file_mmap(struct file *file, struct vm_area_struct *vma)
}
}
- err = generic_file_mmap(file, vma);
+ err = generic_file_mmap_prepare(desc);
out:
return err;
}
@@ -735,6 +751,10 @@ int ntfs_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
umode_t mode = inode->i_mode;
int err;
+ /* Avoid any operation if inode is bad. */
+ if (unlikely(is_bad_ni(ni)))
+ return -EINVAL;
+
if (unlikely(ntfs3_forced_shutdown(inode->i_sb)))
return -EIO;
@@ -795,6 +815,10 @@ static int check_read_restriction(struct inode *inode)
{
struct ntfs_inode *ni = ntfs_i(inode);
+ /* Avoid any operation if inode is bad. */
+ if (unlikely(is_bad_ni(ni)))
+ return -EINVAL;
+
if (unlikely(ntfs3_forced_shutdown(inode->i_sb)))
return -EIO;
@@ -913,7 +937,8 @@ static ssize_t ntfs_compress_write(struct kiocb *iocb, struct iov_iter *from)
struct ntfs_inode *ni = ntfs_i(inode);
u64 valid = ni->i_valid;
struct ntfs_sb_info *sbi = ni->mi.sbi;
- struct page *page, **pages = NULL;
+ struct page **pages = NULL;
+ struct folio *folio;
size_t written = 0;
u8 frame_bits = NTFS_LZNT_CUNIT + sbi->cluster_bits;
u32 frame_size = 1u << frame_bits;
@@ -923,7 +948,6 @@ static ssize_t ntfs_compress_write(struct kiocb *iocb, struct iov_iter *from)
u64 frame_vbo;
pgoff_t index;
bool frame_uptodate;
- struct folio *folio;
if (frame_size < PAGE_SIZE) {
/*
@@ -977,8 +1001,7 @@ static ssize_t ntfs_compress_write(struct kiocb *iocb, struct iov_iter *from)
pages_per_frame);
if (err) {
for (ip = 0; ip < pages_per_frame; ip++) {
- page = pages[ip];
- folio = page_folio(page);
+ folio = page_folio(pages[ip]);
folio_unlock(folio);
folio_put(folio);
}
@@ -989,10 +1012,9 @@ static ssize_t ntfs_compress_write(struct kiocb *iocb, struct iov_iter *from)
ip = off >> PAGE_SHIFT;
off = offset_in_page(valid);
for (; ip < pages_per_frame; ip++, off = 0) {
- page = pages[ip];
- folio = page_folio(page);
- zero_user_segment(page, off, PAGE_SIZE);
- flush_dcache_page(page);
+ folio = page_folio(pages[ip]);
+ folio_zero_segment(folio, off, PAGE_SIZE);
+ flush_dcache_folio(folio);
folio_mark_uptodate(folio);
}
@@ -1001,8 +1023,7 @@ static ssize_t ntfs_compress_write(struct kiocb *iocb, struct iov_iter *from)
ni_unlock(ni);
for (ip = 0; ip < pages_per_frame; ip++) {
- page = pages[ip];
- folio = page_folio(page);
+ folio = page_folio(pages[ip]);
folio_mark_uptodate(folio);
folio_unlock(folio);
folio_put(folio);
@@ -1046,8 +1067,7 @@ static ssize_t ntfs_compress_write(struct kiocb *iocb, struct iov_iter *from)
if (err) {
for (ip = 0; ip < pages_per_frame;
ip++) {
- page = pages[ip];
- folio = page_folio(page);
+ folio = page_folio(pages[ip]);
folio_unlock(folio);
folio_put(folio);
}
@@ -1065,10 +1085,10 @@ static ssize_t ntfs_compress_write(struct kiocb *iocb, struct iov_iter *from)
for (;;) {
size_t cp, tail = PAGE_SIZE - off;
- page = pages[ip];
- cp = copy_page_from_iter_atomic(page, off,
+ folio = page_folio(pages[ip]);
+ cp = copy_folio_from_iter_atomic(folio, off,
min(tail, bytes), from);
- flush_dcache_page(page);
+ flush_dcache_folio(folio);
copied += cp;
bytes -= cp;
@@ -1088,9 +1108,8 @@ static ssize_t ntfs_compress_write(struct kiocb *iocb, struct iov_iter *from)
ni_unlock(ni);
for (ip = 0; ip < pages_per_frame; ip++) {
- page = pages[ip];
- ClearPageDirty(page);
- folio = page_folio(page);
+ folio = page_folio(pages[ip]);
+ folio_clear_dirty(folio);
folio_mark_uptodate(folio);
folio_unlock(folio);
folio_put(folio);
@@ -1135,6 +1154,10 @@ static int check_write_restriction(struct inode *inode)
{
struct ntfs_inode *ni = ntfs_i(inode);
+ /* Avoid any operation if inode is bad. */
+ if (unlikely(is_bad_ni(ni)))
+ return -EINVAL;
+
if (unlikely(ntfs3_forced_shutdown(inode->i_sb)))
return -EIO;
@@ -1217,6 +1240,10 @@ int ntfs_file_open(struct inode *inode, struct file *file)
{
struct ntfs_inode *ni = ntfs_i(inode);
+ /* Avoid any operation if inode is bad. */
+ if (unlikely(is_bad_ni(ni)))
+ return -EINVAL;
+
if (unlikely(ntfs3_forced_shutdown(inode->i_sb)))
return -EIO;
@@ -1286,6 +1313,10 @@ int ntfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
int err;
struct ntfs_inode *ni = ntfs_i(inode);
+ /* Avoid any operation if inode is bad. */
+ if (unlikely(is_bad_ni(ni)))
+ return -EINVAL;
+
err = fiemap_prep(inode, fieinfo, start, &len, ~FIEMAP_FLAG_XATTR);
if (err)
return err;
@@ -1336,7 +1367,7 @@ const struct file_operations ntfs_file_operations = {
#endif
.splice_read = ntfs_file_splice_read,
.splice_write = ntfs_file_splice_write,
- .mmap = ntfs_file_mmap,
+ .mmap_prepare = ntfs_file_mmap_prepare,
.open = ntfs_file_open,
.fsync = generic_file_fsync,
.fallocate = ntfs_fallocate,
generated by cgit v1.2.3 (git 2.39.0) at 2025-08-21 13:14:04 +0300