#include "segment.h"
#include "xattr.h"
#include "acl.h"
+#include "gc.h"
#include "trace.h"
#include <trace/events/f2fs.h>
mapped:
/* fill the page */
f2fs_wait_on_page_writeback(page, DATA);
+ /* if gced page is attached, don't write to cold segment */
+ clear_cold_data(page);
out:
sb_end_pagefault(inode->i_sb);
return block_page_mkwrite_return(err);
}
/* if the inode is dirty, let's recover all the time */
- if (!datasync && is_inode_flag_set(fi, FI_DIRTY_INODE)) {
- update_inode_page(inode);
+ if (!datasync) {
+ f2fs_write_inode(inode, NULL);
goto go_write;
}
int truncate_data_blocks_range(struct dnode_of_data *dn, int count)
{
- int nr_free = 0, ofs = dn->ofs_in_node;
struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
struct f2fs_node *raw_node;
+ int nr_free = 0, ofs = dn->ofs_in_node, len = count;
__le32 *addr;
raw_node = F2FS_NODE(dn->node_page);
dn->data_blkaddr = NULL_ADDR;
set_data_blkaddr(dn);
- f2fs_update_extent_cache(dn);
invalidate_blocks(sbi, blkaddr);
if (dn->ofs_in_node == 0 && IS_INODE(dn->node_page))
clear_inode_flag(F2FS_I(dn->inode),
FI_FIRST_BLOCK_WRITTEN);
nr_free++;
}
+
if (nr_free) {
+ pgoff_t fofs;
+ /*
+ * once we invalidate valid blkaddr in range [ofs, ofs + count],
+ * we will invalidate all blkaddr in the whole range.
+ */
+ fofs = start_bidx_of_node(ofs_of_node(dn->node_page),
+ F2FS_I(dn->inode)) + ofs;
+ f2fs_update_extent_cache_range(dn, fofs, 0, len);
dec_valid_block_count(sbi, dn->inode, nr_free);
set_page_dirty(dn->node_page);
sync_inode_page(dn);
return err;
}
-void f2fs_truncate(struct inode *inode)
+int f2fs_truncate(struct inode *inode, bool lock)
{
+ int err;
+
if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
S_ISLNK(inode->i_mode)))
- return;
+ return 0;
trace_f2fs_truncate(inode);
/* we should check inline_data size */
if (f2fs_has_inline_data(inode) && !f2fs_may_inline_data(inode)) {
- if (f2fs_convert_inline_inode(inode))
- return;
+ err = f2fs_convert_inline_inode(inode);
+ if (err)
+ return err;
}
- if (!truncate_blocks(inode, i_size_read(inode), true)) {
- inode->i_mtime = inode->i_ctime = CURRENT_TIME;
- mark_inode_dirty(inode);
- }
+ err = truncate_blocks(inode, i_size_read(inode), lock);
+ if (err)
+ return err;
+
+ inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+ mark_inode_dirty(inode);
+ return 0;
}
int f2fs_getattr(struct vfsmount *mnt,
if (attr->ia_size <= i_size_read(inode)) {
truncate_setsize(inode, attr->ia_size);
- f2fs_truncate(inode);
+ err = f2fs_truncate(inode, true);
+ if (err)
+ return err;
f2fs_balance_fs(F2FS_I_SB(inode));
} else {
/*
.fiemap = f2fs_fiemap,
};
-static void fill_zero(struct inode *inode, pgoff_t index,
+static int fill_zero(struct inode *inode, pgoff_t index,
loff_t start, loff_t len)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
struct page *page;
if (!len)
- return;
+ return 0;
f2fs_balance_fs(sbi);
page = get_new_data_page(inode, NULL, index, false);
f2fs_unlock_op(sbi);
- if (!IS_ERR(page)) {
- f2fs_wait_on_page_writeback(page, DATA);
- zero_user(page, start, len);
- set_page_dirty(page);
- f2fs_put_page(page, 1);
- }
+ if (IS_ERR(page))
+ return PTR_ERR(page);
+
+ f2fs_wait_on_page_writeback(page, DATA);
+ zero_user(page, start, len);
+ set_page_dirty(page);
+ f2fs_put_page(page, 1);
+ return 0;
}
int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end)
off_end = (offset + len) & (PAGE_CACHE_SIZE - 1);
if (pg_start == pg_end) {
- fill_zero(inode, pg_start, off_start,
+ ret = fill_zero(inode, pg_start, off_start,
off_end - off_start);
+ if (ret)
+ return ret;
} else {
- if (off_start)
- fill_zero(inode, pg_start++, off_start,
- PAGE_CACHE_SIZE - off_start);
- if (off_end)
- fill_zero(inode, pg_end, 0, off_end);
+ if (off_start) {
+ ret = fill_zero(inode, pg_start++, off_start,
+ PAGE_CACHE_SIZE - off_start);
+ if (ret)
+ return ret;
+ }
+ if (off_end) {
+ ret = fill_zero(inode, pg_end, 0, off_end);
+ if (ret)
+ return ret;
+ }
if (pg_start < pg_end) {
struct address_space *mapping = inode->i_mapping;
pgoff_t nrpages = (i_size_read(inode) + PAGE_SIZE - 1) / PAGE_SIZE;
int ret = 0;
- f2fs_lock_op(sbi);
-
for (; end < nrpages; start++, end++) {
block_t new_addr, old_addr;
+ f2fs_lock_op(sbi);
+
set_new_dnode(&dn, inode, NULL, NULL, 0);
ret = get_dnode_of_data(&dn, end, LOOKUP_NODE_RA);
if (ret && ret != -ENOENT) {
if (new_addr == NULL_ADDR) {
set_new_dnode(&dn, inode, NULL, NULL, 0);
ret = get_dnode_of_data(&dn, start, LOOKUP_NODE_RA);
- if (ret && ret != -ENOENT)
+ if (ret && ret != -ENOENT) {
goto out;
- else if (ret == -ENOENT)
+ } else if (ret == -ENOENT) {
+ f2fs_unlock_op(sbi);
continue;
+ }
if (dn.data_blkaddr == NULL_ADDR) {
f2fs_put_dnode(&dn);
+ f2fs_unlock_op(sbi);
continue;
} else {
truncate_data_blocks_range(&dn, 1);
f2fs_put_dnode(&dn);
}
+ f2fs_unlock_op(sbi);
}
- ret = 0;
+ return 0;
out:
f2fs_unlock_op(sbi);
return ret;
if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
return -EINVAL;
+ f2fs_balance_fs(F2FS_I_SB(inode));
+
+ if (f2fs_has_inline_data(inode)) {
+ ret = f2fs_convert_inline_inode(inode);
+ if (ret)
+ return ret;
+ }
+
pg_start = offset >> PAGE_CACHE_SHIFT;
pg_end = (offset + len) >> PAGE_CACHE_SHIFT;
off_end = (offset + len) & (PAGE_CACHE_SIZE - 1);
if (pg_start == pg_end) {
- fill_zero(inode, pg_start, off_start, off_end - off_start);
+ ret = fill_zero(inode, pg_start, off_start,
+ off_end - off_start);
+ if (ret)
+ return ret;
+
if (offset + len > new_size)
new_size = offset + len;
new_size = max_t(loff_t, new_size, offset + len);
} else {
if (off_start) {
- fill_zero(inode, pg_start++, off_start,
- PAGE_CACHE_SIZE - off_start);
+ ret = fill_zero(inode, pg_start++, off_start,
+ PAGE_CACHE_SIZE - off_start);
+ if (ret)
+ return ret;
+
new_size = max_t(loff_t, new_size,
pg_start << PAGE_CACHE_SHIFT);
}
}
if (off_end) {
- fill_zero(inode, pg_end, 0, off_end);
+ ret = fill_zero(inode, pg_end, 0, off_end);
+ if (ret)
+ goto out;
+
new_size = max_t(loff_t, new_size, offset + len);
}
}
f2fs_balance_fs(sbi);
+ if (f2fs_has_inline_data(inode)) {
+ ret = f2fs_convert_inline_inode(inode);
+ if (ret)
+ return ret;
+ }
+
ret = truncate_blocks(inode, i_size_read(inode), true);
if (ret)
return ret;
static int f2fs_ioc_start_atomic_write(struct file *filp)
{
struct inode *inode = file_inode(filp);
+ int ret;
if (!inode_owner_or_capable(inode))
return -EACCES;
if (f2fs_is_atomic_file(inode))
return 0;
- set_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
+ ret = f2fs_convert_inline_inode(inode);
+ if (ret)
+ return ret;
- return f2fs_convert_inline_inode(inode);
+ set_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
+ return 0;
}
static int f2fs_ioc_commit_atomic_write(struct file *filp)
if (f2fs_is_atomic_file(inode)) {
clear_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
- commit_inmem_pages(inode, false);
+ ret = commit_inmem_pages(inode, false);
+ if (ret)
+ goto err_out;
}
- ret = f2fs_sync_file(filp, 0, LONG_MAX, 0);
+ ret = f2fs_sync_file(filp, 0, LLONG_MAX, 0);
+err_out:
mnt_drop_write_file(filp);
return ret;
}
static int f2fs_ioc_start_volatile_write(struct file *filp)
{
struct inode *inode = file_inode(filp);
+ int ret;
if (!inode_owner_or_capable(inode))
return -EACCES;
if (f2fs_is_volatile_file(inode))
return 0;
- set_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE);
+ ret = f2fs_convert_inline_inode(inode);
+ if (ret)
+ return ret;
- return f2fs_convert_inline_inode(inode);
+ set_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE);
+ return 0;
}
static int f2fs_ioc_release_volatile_write(struct file *filp)
if (f2fs_is_atomic_file(inode)) {
clear_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
- commit_inmem_pages(inode, false);
+ commit_inmem_pages(inode, true);
}
if (f2fs_is_volatile_file(inode))
return 0;
}
+static int f2fs_ioc_gc(struct file *filp, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ __u32 i, count;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ if (get_user(count, (__u32 __user *)arg))
+ return -EFAULT;
+
+ if (!count || count > F2FS_BATCH_GC_MAX_NUM)
+ return -EINVAL;
+
+ for (i = 0; i < count; i++) {
+ if (!mutex_trylock(&sbi->gc_mutex))
+ break;
+
+ if (f2fs_gc(sbi))
+ break;
+ }
+
+ if (put_user(i, (__u32 __user *)arg))
+ return -EFAULT;
+
+ return 0;
+}
+
long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
switch (cmd) {
return f2fs_ioc_get_encryption_policy(filp, arg);
case F2FS_IOC_GET_ENCRYPTION_PWSALT:
return f2fs_ioc_get_encryption_pwsalt(filp, arg);
+ case F2FS_IOC_GARBAGE_COLLECT:
+ return f2fs_ioc_gc(filp, arg);
default:
return -ENOTTY;
}
projects / firefly-linux-kernel-4.4.55.git / blobdiff