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-rw-r--r--fs/f2fs/file.c264
1 files changed, 229 insertions, 35 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 3268f8dd59bb..8a422400e824 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -21,6 +21,7 @@
#include <linux/uuid.h>
#include <linux/file.h>
#include <linux/nls.h>
+#include <linux/sched/signal.h>
#include "f2fs.h"
#include "node.h"
@@ -105,11 +106,11 @@ static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf)
if (need_alloc) {
/* block allocation */
- __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
+ f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
set_new_dnode(&dn, inode, NULL, NULL, 0);
err = f2fs_get_block(&dn, page->index);
f2fs_put_dnode(&dn);
- __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
+ f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
}
#ifdef CONFIG_F2FS_FS_COMPRESSION
@@ -1373,8 +1374,6 @@ static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len)
truncate_pagecache(inode, offset);
new_size = i_size_read(inode) - len;
- truncate_pagecache(inode, new_size);
-
ret = f2fs_truncate_blocks(inode, new_size, true);
up_write(&F2FS_I(inode)->i_mmap_sem);
if (!ret)
@@ -1660,7 +1659,7 @@ next_alloc:
map.m_seg_type = CURSEG_COLD_DATA_PINNED;
f2fs_lock_op(sbi);
- f2fs_allocate_new_segments(sbi, CURSEG_COLD_DATA);
+ f2fs_allocate_new_segment(sbi, CURSEG_COLD_DATA);
f2fs_unlock_op(sbi);
err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO);
@@ -2527,6 +2526,11 @@ do_more:
}
ret = f2fs_gc(sbi, range.sync, true, GET_SEGNO(sbi, range.start));
+ if (ret) {
+ if (ret == -EBUSY)
+ ret = -EAGAIN;
+ goto out;
+ }
range.start += BLKS_PER_SEC(sbi);
if (range.start <= end)
goto do_more;
@@ -3359,7 +3363,7 @@ static int f2fs_ioc_measure_verity(struct file *filp, unsigned long arg)
return fsverity_ioctl_measure(filp, (void __user *)arg);
}
-static int f2fs_get_volume_name(struct file *filp, unsigned long arg)
+static int f2fs_ioc_getfslabel(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
@@ -3385,7 +3389,7 @@ static int f2fs_get_volume_name(struct file *filp, unsigned long arg)
return err;
}
-static int f2fs_set_volume_name(struct file *filp, unsigned long arg)
+static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
@@ -3531,14 +3535,14 @@ static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
if (ret)
goto out;
- if (!F2FS_I(inode)->i_compr_blocks)
- goto out;
-
F2FS_I(inode)->i_flags |= F2FS_IMMUTABLE_FL;
f2fs_set_inode_flags(inode);
inode->i_ctime = current_time(inode);
f2fs_mark_inode_dirty_sync(inode, true);
+ if (!F2FS_I(inode)->i_compr_blocks)
+ goto out;
+
down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
down_write(&F2FS_I(inode)->i_mmap_sem);
@@ -3756,6 +3760,193 @@ out:
return ret;
}
+static int f2fs_secure_erase(struct block_device *bdev, struct inode *inode,
+ pgoff_t off, block_t block, block_t len, u32 flags)
+{
+ struct request_queue *q = bdev_get_queue(bdev);
+ sector_t sector = SECTOR_FROM_BLOCK(block);
+ sector_t nr_sects = SECTOR_FROM_BLOCK(len);
+ int ret = 0;
+
+ if (!q)
+ return -ENXIO;
+
+ if (flags & F2FS_TRIM_FILE_DISCARD)
+ ret = blkdev_issue_discard(bdev, sector, nr_sects, GFP_NOFS,
+ blk_queue_secure_erase(q) ?
+ BLKDEV_DISCARD_SECURE : 0);
+
+ if (!ret && (flags & F2FS_TRIM_FILE_ZEROOUT)) {
+ if (IS_ENCRYPTED(inode))
+ ret = fscrypt_zeroout_range(inode, off, block, len);
+ else
+ ret = blkdev_issue_zeroout(bdev, sector, nr_sects,
+ GFP_NOFS, 0);
+ }
+
+ return ret;
+}
+
+static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ struct address_space *mapping = inode->i_mapping;
+ struct block_device *prev_bdev = NULL;
+ struct f2fs_sectrim_range range;
+ pgoff_t index, pg_end, prev_index = 0;
+ block_t prev_block = 0, len = 0;
+ loff_t end_addr;
+ bool to_end = false;
+ int ret = 0;
+
+ if (!(filp->f_mode & FMODE_WRITE))
+ return -EBADF;
+
+ if (copy_from_user(&range, (struct f2fs_sectrim_range __user *)arg,
+ sizeof(range)))
+ return -EFAULT;
+
+ if (range.flags == 0 || (range.flags & ~F2FS_TRIM_FILE_MASK) ||
+ !S_ISREG(inode->i_mode))
+ return -EINVAL;
+
+ if (((range.flags & F2FS_TRIM_FILE_DISCARD) &&
+ !f2fs_hw_support_discard(sbi)) ||
+ ((range.flags & F2FS_TRIM_FILE_ZEROOUT) &&
+ IS_ENCRYPTED(inode) && f2fs_is_multi_device(sbi)))
+ return -EOPNOTSUPP;
+
+ file_start_write(filp);
+ inode_lock(inode);
+
+ if (f2fs_is_atomic_file(inode) || f2fs_compressed_file(inode) ||
+ range.start >= inode->i_size) {
+ ret = -EINVAL;
+ goto err;
+ }
+
+ if (range.len == 0)
+ goto err;
+
+ if (inode->i_size - range.start > range.len) {
+ end_addr = range.start + range.len;
+ } else {
+ end_addr = range.len == (u64)-1 ?
+ sbi->sb->s_maxbytes : inode->i_size;
+ to_end = true;
+ }
+
+ if (!IS_ALIGNED(range.start, F2FS_BLKSIZE) ||
+ (!to_end && !IS_ALIGNED(end_addr, F2FS_BLKSIZE))) {
+ ret = -EINVAL;
+ goto err;
+ }
+
+ index = F2FS_BYTES_TO_BLK(range.start);
+ pg_end = DIV_ROUND_UP(end_addr, F2FS_BLKSIZE);
+
+ ret = f2fs_convert_inline_inode(inode);
+ if (ret)
+ goto err;
+
+ down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+ down_write(&F2FS_I(inode)->i_mmap_sem);
+
+ ret = filemap_write_and_wait_range(mapping, range.start,
+ to_end ? LLONG_MAX : end_addr - 1);
+ if (ret)
+ goto out;
+
+ truncate_inode_pages_range(mapping, range.start,
+ to_end ? -1 : end_addr - 1);
+
+ while (index < pg_end) {
+ struct dnode_of_data dn;
+ pgoff_t end_offset, count;
+ int i;
+
+ set_new_dnode(&dn, inode, NULL, NULL, 0);
+ ret = f2fs_get_dnode_of_data(&dn, index, LOOKUP_NODE);
+ if (ret) {
+ if (ret == -ENOENT) {
+ index = f2fs_get_next_page_offset(&dn, index);
+ continue;
+ }
+ goto out;
+ }
+
+ end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
+ count = min(end_offset - dn.ofs_in_node, pg_end - index);
+ for (i = 0; i < count; i++, index++, dn.ofs_in_node++) {
+ struct block_device *cur_bdev;
+ block_t blkaddr = f2fs_data_blkaddr(&dn);
+
+ if (!__is_valid_data_blkaddr(blkaddr))
+ continue;
+
+ if (!f2fs_is_valid_blkaddr(sbi, blkaddr,
+ DATA_GENERIC_ENHANCE)) {
+ ret = -EFSCORRUPTED;
+ f2fs_put_dnode(&dn);
+ goto out;
+ }
+
+ cur_bdev = f2fs_target_device(sbi, blkaddr, NULL);
+ if (f2fs_is_multi_device(sbi)) {
+ int di = f2fs_target_device_index(sbi, blkaddr);
+
+ blkaddr -= FDEV(di).start_blk;
+ }
+
+ if (len) {
+ if (prev_bdev == cur_bdev &&
+ index == prev_index + len &&
+ blkaddr == prev_block + len) {
+ len++;
+ } else {
+ ret = f2fs_secure_erase(prev_bdev,
+ inode, prev_index, prev_block,
+ len, range.flags);
+ if (ret) {
+ f2fs_put_dnode(&dn);
+ goto out;
+ }
+
+ len = 0;
+ }
+ }
+
+ if (!len) {
+ prev_bdev = cur_bdev;
+ prev_index = index;
+ prev_block = blkaddr;
+ len = 1;
+ }
+ }
+
+ f2fs_put_dnode(&dn);
+
+ if (fatal_signal_pending(current)) {
+ ret = -EINTR;
+ goto out;
+ }
+ cond_resched();
+ }
+
+ if (len)
+ ret = f2fs_secure_erase(prev_bdev, inode, prev_index,
+ prev_block, len, range.flags);
+out:
+ up_write(&F2FS_I(inode)->i_mmap_sem);
+ up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+err:
+ inode_unlock(inode);
+ file_end_write(filp);
+
+ return ret;
+}
+
long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(filp)))))
@@ -3764,11 +3955,11 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
return -ENOSPC;
switch (cmd) {
- case F2FS_IOC_GETFLAGS:
+ case FS_IOC_GETFLAGS:
return f2fs_ioc_getflags(filp, arg);
- case F2FS_IOC_SETFLAGS:
+ case FS_IOC_SETFLAGS:
return f2fs_ioc_setflags(filp, arg);
- case F2FS_IOC_GETVERSION:
+ case FS_IOC_GETVERSION:
return f2fs_ioc_getversion(filp, arg);
case F2FS_IOC_START_ATOMIC_WRITE:
return f2fs_ioc_start_atomic_write(filp);
@@ -3784,11 +3975,11 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
return f2fs_ioc_shutdown(filp, arg);
case FITRIM:
return f2fs_ioc_fitrim(filp, arg);
- case F2FS_IOC_SET_ENCRYPTION_POLICY:
+ case FS_IOC_SET_ENCRYPTION_POLICY:
return f2fs_ioc_set_encryption_policy(filp, arg);
- case F2FS_IOC_GET_ENCRYPTION_POLICY:
+ case FS_IOC_GET_ENCRYPTION_POLICY:
return f2fs_ioc_get_encryption_policy(filp, arg);
- case F2FS_IOC_GET_ENCRYPTION_PWSALT:
+ case FS_IOC_GET_ENCRYPTION_PWSALT:
return f2fs_ioc_get_encryption_pwsalt(filp, arg);
case FS_IOC_GET_ENCRYPTION_POLICY_EX:
return f2fs_ioc_get_encryption_policy_ex(filp, arg);
@@ -3816,9 +4007,9 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
return f2fs_ioc_flush_device(filp, arg);
case F2FS_IOC_GET_FEATURES:
return f2fs_ioc_get_features(filp, arg);
- case F2FS_IOC_FSGETXATTR:
+ case FS_IOC_FSGETXATTR:
return f2fs_ioc_fsgetxattr(filp, arg);
- case F2FS_IOC_FSSETXATTR:
+ case FS_IOC_FSSETXATTR:
return f2fs_ioc_fssetxattr(filp, arg);
case F2FS_IOC_GET_PIN_FILE:
return f2fs_ioc_get_pin_file(filp, arg);
@@ -3832,16 +4023,18 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
return f2fs_ioc_enable_verity(filp, arg);
case FS_IOC_MEASURE_VERITY:
return f2fs_ioc_measure_verity(filp, arg);
- case F2FS_IOC_GET_VOLUME_NAME:
- return f2fs_get_volume_name(filp, arg);
- case F2FS_IOC_SET_VOLUME_NAME:
- return f2fs_set_volume_name(filp, arg);
+ case FS_IOC_GETFSLABEL:
+ return f2fs_ioc_getfslabel(filp, arg);
+ case FS_IOC_SETFSLABEL:
+ return f2fs_ioc_setfslabel(filp, arg);
case F2FS_IOC_GET_COMPRESS_BLOCKS:
return f2fs_get_compress_blocks(filp, arg);
case F2FS_IOC_RELEASE_COMPRESS_BLOCKS:
return f2fs_release_compress_blocks(filp, arg);
case F2FS_IOC_RESERVE_COMPRESS_BLOCKS:
return f2fs_reserve_compress_blocks(filp, arg);
+ case F2FS_IOC_SEC_TRIM_FILE:
+ return f2fs_sec_trim_file(filp, arg);
default:
return -ENOTTY;
}
@@ -3966,14 +4159,14 @@ out:
long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
switch (cmd) {
- case F2FS_IOC32_GETFLAGS:
- cmd = F2FS_IOC_GETFLAGS;
+ case FS_IOC32_GETFLAGS:
+ cmd = FS_IOC_GETFLAGS;
break;
- case F2FS_IOC32_SETFLAGS:
- cmd = F2FS_IOC_SETFLAGS;
+ case FS_IOC32_SETFLAGS:
+ cmd = FS_IOC_SETFLAGS;
break;
- case F2FS_IOC32_GETVERSION:
- cmd = F2FS_IOC_GETVERSION;
+ case FS_IOC32_GETVERSION:
+ cmd = FS_IOC_GETVERSION;
break;
case F2FS_IOC_START_ATOMIC_WRITE:
case F2FS_IOC_COMMIT_ATOMIC_WRITE:
@@ -3982,9 +4175,9 @@ long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
case F2FS_IOC_ABORT_VOLATILE_WRITE:
case F2FS_IOC_SHUTDOWN:
case FITRIM:
- case F2FS_IOC_SET_ENCRYPTION_POLICY:
- case F2FS_IOC_GET_ENCRYPTION_PWSALT:
- case F2FS_IOC_GET_ENCRYPTION_POLICY:
+ case FS_IOC_SET_ENCRYPTION_POLICY:
+ case FS_IOC_GET_ENCRYPTION_PWSALT:
+ case FS_IOC_GET_ENCRYPTION_POLICY:
case FS_IOC_GET_ENCRYPTION_POLICY_EX:
case FS_IOC_ADD_ENCRYPTION_KEY:
case FS_IOC_REMOVE_ENCRYPTION_KEY:
@@ -3998,19 +4191,20 @@ long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
case F2FS_IOC_MOVE_RANGE:
case F2FS_IOC_FLUSH_DEVICE:
case F2FS_IOC_GET_FEATURES:
- case F2FS_IOC_FSGETXATTR:
- case F2FS_IOC_FSSETXATTR:
+ case FS_IOC_FSGETXATTR:
+ case FS_IOC_FSSETXATTR:
case F2FS_IOC_GET_PIN_FILE:
case F2FS_IOC_SET_PIN_FILE:
case F2FS_IOC_PRECACHE_EXTENTS:
case F2FS_IOC_RESIZE_FS:
case FS_IOC_ENABLE_VERITY:
case FS_IOC_MEASURE_VERITY:
- case F2FS_IOC_GET_VOLUME_NAME:
- case F2FS_IOC_SET_VOLUME_NAME:
+ case FS_IOC_GETFSLABEL:
+ case FS_IOC_SETFSLABEL:
case F2FS_IOC_GET_COMPRESS_BLOCKS:
case F2FS_IOC_RELEASE_COMPRESS_BLOCKS:
case F2FS_IOC_RESERVE_COMPRESS_BLOCKS:
+ case F2FS_IOC_SEC_TRIM_FILE:
break;
default:
return -ENOIOCTLCMD;