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Diffstat (limited to 'fs/ntfs/file.c')
-rw-r--r--fs/ntfs/file.c63
1 files changed, 39 insertions, 24 deletions
diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index f4b1057abdd..5c9e2c81cb1 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -27,6 +27,7 @@
#include <linux/swap.h>
#include <linux/uio.h>
#include <linux/writeback.h>
+#include <linux/aio.h>
#include <asm/page.h>
#include <asm/uaccess.h>
@@ -704,7 +705,7 @@ map_buffer_cached:
u8 *kaddr;
unsigned pofs;
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
if (bh_pos < pos) {
pofs = bh_pos & ~PAGE_CACHE_MASK;
memset(kaddr + pofs, 0, pos - bh_pos);
@@ -713,7 +714,7 @@ map_buffer_cached:
pofs = end & ~PAGE_CACHE_MASK;
memset(kaddr + pofs, 0, bh_end - end);
}
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
flush_dcache_page(page);
}
continue;
@@ -1287,9 +1288,9 @@ static inline size_t ntfs_copy_from_user(struct page **pages,
len = PAGE_CACHE_SIZE - ofs;
if (len > bytes)
len = bytes;
- addr = kmap_atomic(*pages, KM_USER0);
+ addr = kmap_atomic(*pages);
left = __copy_from_user_inatomic(addr + ofs, buf, len);
- kunmap_atomic(addr, KM_USER0);
+ kunmap_atomic(addr);
if (unlikely(left)) {
/* Do it the slow way. */
addr = kmap(*pages);
@@ -1401,10 +1402,10 @@ static inline size_t ntfs_copy_from_user_iovec(struct page **pages,
len = PAGE_CACHE_SIZE - ofs;
if (len > bytes)
len = bytes;
- addr = kmap_atomic(*pages, KM_USER0);
+ addr = kmap_atomic(*pages);
copied = __ntfs_copy_from_user_iovec_inatomic(addr + ofs,
*iov, *iov_ofs, len);
- kunmap_atomic(addr, KM_USER0);
+ kunmap_atomic(addr);
if (unlikely(copied != len)) {
/* Do it the slow way. */
addr = kmap(*pages);
@@ -1691,7 +1692,7 @@ static int ntfs_commit_pages_after_write(struct page **pages,
BUG_ON(end > le32_to_cpu(a->length) -
le16_to_cpu(a->data.resident.value_offset));
kattr = (u8*)a + le16_to_cpu(a->data.resident.value_offset);
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
/* Copy the received data from the page to the mft record. */
memcpy(kattr + pos, kaddr + pos, bytes);
/* Update the attribute length if necessary. */
@@ -1713,7 +1714,7 @@ static int ntfs_commit_pages_after_write(struct page **pages,
flush_dcache_page(page);
SetPageUptodate(page);
}
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
/* Update initialized_size/i_size if necessary. */
read_lock_irqsave(&ni->size_lock, flags);
initialized_size = ni->initialized_size;
@@ -1762,6 +1763,16 @@ err_out:
return err;
}
+static void ntfs_write_failed(struct address_space *mapping, loff_t to)
+{
+ struct inode *inode = mapping->host;
+
+ if (to > inode->i_size) {
+ truncate_pagecache(inode, inode->i_size);
+ ntfs_truncate_vfs(inode);
+ }
+}
+
/**
* ntfs_file_buffered_write -
*
@@ -1832,9 +1843,8 @@ static ssize_t ntfs_file_buffered_write(struct kiocb *iocb,
* fails again.
*/
if (unlikely(NInoTruncateFailed(ni))) {
- down_write(&vi->i_alloc_sem);
+ inode_dio_wait(vi);
err = ntfs_truncate(vi);
- up_write(&vi->i_alloc_sem);
if (err || NInoTruncateFailed(ni)) {
if (!err)
err = -EIO;
@@ -2023,8 +2033,9 @@ static ssize_t ntfs_file_buffered_write(struct kiocb *iocb,
* allocated space, which is not a disaster.
*/
i_size = i_size_read(vi);
- if (pos + bytes > i_size)
- vmtruncate(vi, i_size);
+ if (pos + bytes > i_size) {
+ ntfs_write_failed(mapping, pos + bytes);
+ }
break;
}
}
@@ -2049,7 +2060,6 @@ static ssize_t ntfs_file_buffered_write(struct kiocb *iocb,
}
do {
unlock_page(pages[--do_pages]);
- mark_page_accessed(pages[do_pages]);
page_cache_release(pages[do_pages]);
} while (do_pages);
if (unlikely(status))
@@ -2080,12 +2090,8 @@ static ssize_t ntfs_file_aio_write_nolock(struct kiocb *iocb,
size_t count; /* after file limit checks */
ssize_t written, err;
- count = 0;
- err = generic_segment_checks(iov, &nr_segs, &count, VERIFY_READ);
- if (err)
- return err;
+ count = iov_length(iov, nr_segs);
pos = *ppos;
- vfs_check_frozen(inode->i_sb, SB_FREEZE_WRITE);
/* We can write back this queue in page reclaim. */
current->backing_dev_info = mapping->backing_dev_info;
written = 0;
@@ -2097,7 +2103,9 @@ static ssize_t ntfs_file_aio_write_nolock(struct kiocb *iocb,
err = file_remove_suid(file);
if (err)
goto out;
- file_update_time(file);
+ err = file_update_time(file);
+ if (err)
+ goto out;
written = ntfs_file_buffered_write(iocb, iov, nr_segs, pos, ppos,
count);
out:
@@ -2122,7 +2130,7 @@ static ssize_t ntfs_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
ret = ntfs_file_aio_write_nolock(iocb, iov, nr_segs, &iocb->ki_pos);
mutex_unlock(&inode->i_mutex);
if (ret > 0) {
- int err = generic_write_sync(file, pos, ret);
+ int err = generic_write_sync(file, iocb->ki_pos - ret, ret);
if (err < 0)
ret = err;
}
@@ -2153,12 +2161,19 @@ static ssize_t ntfs_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
* with this inode but since we have no simple way of getting to them we ignore
* this problem for now.
*/
-static int ntfs_file_fsync(struct file *filp, int datasync)
+static int ntfs_file_fsync(struct file *filp, loff_t start, loff_t end,
+ int datasync)
{
struct inode *vi = filp->f_mapping->host;
int err, ret = 0;
ntfs_debug("Entering for inode 0x%lx.", vi->i_ino);
+
+ err = filemap_write_and_wait_range(vi->i_mapping, start, end);
+ if (err)
+ return err;
+ mutex_lock(&vi->i_mutex);
+
BUG_ON(S_ISDIR(vi->i_mode));
if (!datasync || !NInoNonResident(NTFS_I(vi)))
ret = __ntfs_write_inode(vi, 1);
@@ -2176,6 +2191,7 @@ static int ntfs_file_fsync(struct file *filp, int datasync)
else
ntfs_warning(vi->i_sb, "Failed to f%ssync inode 0x%lx. Error "
"%u.", datasync ? "data" : "", vi->i_ino, -ret);
+ mutex_unlock(&vi->i_mutex);
return ret;
}
@@ -2183,8 +2199,8 @@ static int ntfs_file_fsync(struct file *filp, int datasync)
const struct file_operations ntfs_file_ops = {
.llseek = generic_file_llseek, /* Seek inside file. */
- .read = do_sync_read, /* Read from file. */
- .aio_read = generic_file_aio_read, /* Async read from file. */
+ .read = new_sync_read, /* Read from file. */
+ .read_iter = generic_file_read_iter, /* Async read from file. */
#ifdef NTFS_RW
.write = do_sync_write, /* Write to file. */
.aio_write = ntfs_file_aio_write, /* Async write to file. */
@@ -2217,7 +2233,6 @@ const struct file_operations ntfs_file_ops = {
const struct inode_operations ntfs_file_inode_ops = {
#ifdef NTFS_RW
- .truncate = ntfs_truncate_vfs,
.setattr = ntfs_setattr,
#endif /* NTFS_RW */
};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 21:53:37 +0000