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authorLinus Torvalds <torvalds@linux-foundation.org>2018-01-30 19:07:32 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-01-30 19:07:32 -0800
commit3da90b159b146672f830bcd2489dd3a1f4e9e089 (patch)
tree3130e89a466afd4b4a86e3192538bcc0012f6d1c /fs/f2fs/data.c
parentefd52b5d363e3e3b6224ad39949219c0df117c91 (diff)
parent1c1d35df71104c76a4a2e25862926f22c334c9d6 (diff)
Merge tag 'f2fs-for-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim: "In this round, we've followed up to support some generic features such as cgroup, block reservation, linking fscrypt_ops, delivering write_hints, and some ioctls. And, we could fix some corner cases in terms of power-cut recovery and subtle deadlocks. Enhancements: - bitmap operations to handle NAT blocks - readahead to improve readdir speed - switch to use fscrypt_* - apply write hints for direct IO - add reserve_root=%u,resuid=%u,resgid=%u to reserve blocks for root/uid/gid - modify b_avail and b_free to consider root reserved blocks - support cgroup writeback - support FIEMAP_FLAG_XATTR for fibmap - add F2FS_IOC_PRECACHE_EXTENTS to pre-cache extents - add F2FS_IOC_{GET/SET}_PIN_FILE to pin LBAs for data blocks - support inode creation time Bug fixs: - sysfile-based quota operations - memory footprint accounting - allow to write data on partial preallocation case - fix deadlock case on fallocate - fix to handle fill_super errors - fix missing inode updates of fsync'ed file - recover renamed file which was fsycn'ed before - drop inmemory pages in corner error case - keep last_disk_size correctly - recover missing i_inline flags during roll-forward Various clean-up patches were added as well" * tag 'f2fs-for-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (72 commits) f2fs: support inode creation time f2fs: rebuild sit page from sit info in mem f2fs: stop issuing discard if fs is readonly f2fs: clean up duplicated assignment in init_discard_policy f2fs: use GFP_F2FS_ZERO for cleanup f2fs: allow to recover node blocks given updated checkpoint f2fs: recover some i_inline flags f2fs: correct removexattr behavior for null valued extended attribute f2fs: drop page cache after fs shutdown f2fs: stop gc/discard thread after fs shutdown f2fs: hanlde error case in f2fs_ioc_shutdown f2fs: split need_inplace_update f2fs: fix to update last_disk_size correctly f2fs: kill F2FS_INLINE_XATTR_ADDRS for cleanup f2fs: clean up error path of fill_super f2fs: avoid hungtask when GC encrypted block if io_bits is set f2fs: allow quota to use reserved blocks f2fs: fix to drop all inmem pages correctly f2fs: speed up defragment on sparse file f2fs: support F2FS_IOC_PRECACHE_EXTENTS ...
Diffstat (limited to 'fs/f2fs/data.c')
-rw-r--r--fs/f2fs/data.c299
1 files changed, 254 insertions, 45 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 455f086cce3d..7578ed1a85e0 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -111,8 +111,13 @@ static void f2fs_write_end_io(struct bio *bio)
if (unlikely(bio->bi_status)) {
mapping_set_error(page->mapping, -EIO);
- f2fs_stop_checkpoint(sbi, true);
+ if (type == F2FS_WB_CP_DATA)
+ f2fs_stop_checkpoint(sbi, true);
}
+
+ f2fs_bug_on(sbi, page->mapping == NODE_MAPPING(sbi) &&
+ page->index != nid_of_node(page));
+
dec_page_count(sbi, type);
clear_cold_data(page);
end_page_writeback(page);
@@ -169,6 +174,7 @@ static bool __same_bdev(struct f2fs_sb_info *sbi,
* Low-level block read/write IO operations.
*/
static struct bio *__bio_alloc(struct f2fs_sb_info *sbi, block_t blk_addr,
+ struct writeback_control *wbc,
int npages, bool is_read)
{
struct bio *bio;
@@ -178,6 +184,8 @@ static struct bio *__bio_alloc(struct f2fs_sb_info *sbi, block_t blk_addr,
f2fs_target_device(sbi, blk_addr, bio);
bio->bi_end_io = is_read ? f2fs_read_end_io : f2fs_write_end_io;
bio->bi_private = is_read ? NULL : sbi;
+ if (wbc)
+ wbc_init_bio(wbc, bio);
return bio;
}
@@ -373,7 +381,8 @@ int f2fs_submit_page_bio(struct f2fs_io_info *fio)
f2fs_trace_ios(fio, 0);
/* Allocate a new bio */
- bio = __bio_alloc(fio->sbi, fio->new_blkaddr, 1, is_read_io(fio->op));
+ bio = __bio_alloc(fio->sbi, fio->new_blkaddr, fio->io_wbc,
+ 1, is_read_io(fio->op));
if (bio_add_page(bio, page, PAGE_SIZE, 0) < PAGE_SIZE) {
bio_put(bio);
@@ -435,7 +444,7 @@ alloc_new:
dec_page_count(sbi, WB_DATA_TYPE(bio_page));
goto out_fail;
}
- io->bio = __bio_alloc(sbi, fio->new_blkaddr,
+ io->bio = __bio_alloc(sbi, fio->new_blkaddr, fio->io_wbc,
BIO_MAX_PAGES, false);
io->fio = *fio;
}
@@ -445,6 +454,9 @@ alloc_new:
goto alloc_new;
}
+ if (fio->io_wbc)
+ wbc_account_io(fio->io_wbc, bio_page, PAGE_SIZE);
+
io->last_block_in_bio = fio->new_blkaddr;
f2fs_trace_ios(fio, 0);
@@ -783,7 +795,7 @@ got_it:
return page;
}
-static int __allocate_data_block(struct dnode_of_data *dn)
+static int __allocate_data_block(struct dnode_of_data *dn, int seg_type)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
struct f2fs_summary sum;
@@ -808,7 +820,7 @@ alloc:
set_summary(&sum, dn->nid, dn->ofs_in_node, ni.version);
allocate_data_block(sbi, NULL, dn->data_blkaddr, &dn->data_blkaddr,
- &sum, CURSEG_WARM_DATA, NULL, false);
+ &sum, seg_type, NULL, false);
set_data_blkaddr(dn);
/* update i_size */
@@ -831,10 +843,12 @@ int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from)
{
struct inode *inode = file_inode(iocb->ki_filp);
struct f2fs_map_blocks map;
+ int flag;
int err = 0;
+ bool direct_io = iocb->ki_flags & IOCB_DIRECT;
/* convert inline data for Direct I/O*/
- if (iocb->ki_flags & IOCB_DIRECT) {
+ if (direct_io) {
err = f2fs_convert_inline_inode(inode);
if (err)
return err;
@@ -851,19 +865,33 @@ int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from)
map.m_len = 0;
map.m_next_pgofs = NULL;
+ map.m_next_extent = NULL;
+ map.m_seg_type = NO_CHECK_TYPE;
- if (iocb->ki_flags & IOCB_DIRECT)
- return f2fs_map_blocks(inode, &map, 1,
- __force_buffered_io(inode, WRITE) ?
- F2FS_GET_BLOCK_PRE_AIO :
- F2FS_GET_BLOCK_PRE_DIO);
+ if (direct_io) {
+ map.m_seg_type = rw_hint_to_seg_type(iocb->ki_hint);
+ flag = __force_buffered_io(inode, WRITE) ?
+ F2FS_GET_BLOCK_PRE_AIO :
+ F2FS_GET_BLOCK_PRE_DIO;
+ goto map_blocks;
+ }
if (iocb->ki_pos + iov_iter_count(from) > MAX_INLINE_DATA(inode)) {
err = f2fs_convert_inline_inode(inode);
if (err)
return err;
}
- if (!f2fs_has_inline_data(inode))
- return f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_AIO);
+ if (f2fs_has_inline_data(inode))
+ return err;
+
+ flag = F2FS_GET_BLOCK_PRE_AIO;
+
+map_blocks:
+ err = f2fs_map_blocks(inode, &map, 1, flag);
+ if (map.m_len > 0 && err == -ENOSPC) {
+ if (!direct_io)
+ set_inode_flag(inode, FI_NO_PREALLOC);
+ err = 0;
+ }
return err;
}
@@ -904,6 +932,7 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
blkcnt_t prealloc;
struct extent_info ei = {0,0,0};
block_t blkaddr;
+ unsigned int start_pgofs;
if (!maxblocks)
return 0;
@@ -919,6 +948,8 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
map->m_pblk = ei.blk + pgofs - ei.fofs;
map->m_len = min((pgoff_t)maxblocks, ei.fofs + ei.len - pgofs);
map->m_flags = F2FS_MAP_MAPPED;
+ if (map->m_next_extent)
+ *map->m_next_extent = pgofs + map->m_len;
goto out;
}
@@ -937,10 +968,14 @@ next_dnode:
if (map->m_next_pgofs)
*map->m_next_pgofs =
get_next_page_offset(&dn, pgofs);
+ if (map->m_next_extent)
+ *map->m_next_extent =
+ get_next_page_offset(&dn, pgofs);
}
goto unlock_out;
}
+ start_pgofs = pgofs;
prealloc = 0;
last_ofs_in_node = ofs_in_node = dn.ofs_in_node;
end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
@@ -960,7 +995,8 @@ next_block:
last_ofs_in_node = dn.ofs_in_node;
}
} else {
- err = __allocate_data_block(&dn);
+ err = __allocate_data_block(&dn,
+ map->m_seg_type);
if (!err)
set_inode_flag(inode, FI_APPEND_WRITE);
}
@@ -973,14 +1009,20 @@ next_block:
map->m_pblk = 0;
goto sync_out;
}
+ if (flag == F2FS_GET_BLOCK_PRECACHE)
+ goto sync_out;
if (flag == F2FS_GET_BLOCK_FIEMAP &&
blkaddr == NULL_ADDR) {
if (map->m_next_pgofs)
*map->m_next_pgofs = pgofs + 1;
+ goto sync_out;
}
- if (flag != F2FS_GET_BLOCK_FIEMAP ||
- blkaddr != NEW_ADDR)
+ if (flag != F2FS_GET_BLOCK_FIEMAP) {
+ /* for defragment case */
+ if (map->m_next_pgofs)
+ *map->m_next_pgofs = pgofs + 1;
goto sync_out;
+ }
}
}
@@ -1031,6 +1073,16 @@ skip:
else if (dn.ofs_in_node < end_offset)
goto next_block;
+ if (flag == F2FS_GET_BLOCK_PRECACHE) {
+ if (map->m_flags & F2FS_MAP_MAPPED) {
+ unsigned int ofs = start_pgofs - map->m_lblk;
+
+ f2fs_update_extent_cache_range(&dn,
+ start_pgofs, map->m_pblk + ofs,
+ map->m_len - ofs);
+ }
+ }
+
f2fs_put_dnode(&dn);
if (create) {
@@ -1040,6 +1092,17 @@ skip:
goto next_dnode;
sync_out:
+ if (flag == F2FS_GET_BLOCK_PRECACHE) {
+ if (map->m_flags & F2FS_MAP_MAPPED) {
+ unsigned int ofs = start_pgofs - map->m_lblk;
+
+ f2fs_update_extent_cache_range(&dn,
+ start_pgofs, map->m_pblk + ofs,
+ map->m_len - ofs);
+ }
+ if (map->m_next_extent)
+ *map->m_next_extent = pgofs + 1;
+ }
f2fs_put_dnode(&dn);
unlock_out:
if (create) {
@@ -1053,7 +1116,7 @@ out:
static int __get_data_block(struct inode *inode, sector_t iblock,
struct buffer_head *bh, int create, int flag,
- pgoff_t *next_pgofs)
+ pgoff_t *next_pgofs, int seg_type)
{
struct f2fs_map_blocks map;
int err;
@@ -1061,6 +1124,8 @@ static int __get_data_block(struct inode *inode, sector_t iblock,
map.m_lblk = iblock;
map.m_len = bh->b_size >> inode->i_blkbits;
map.m_next_pgofs = next_pgofs;
+ map.m_next_extent = NULL;
+ map.m_seg_type = seg_type;
err = f2fs_map_blocks(inode, &map, create, flag);
if (!err) {
@@ -1076,14 +1141,17 @@ static int get_data_block(struct inode *inode, sector_t iblock,
pgoff_t *next_pgofs)
{
return __get_data_block(inode, iblock, bh_result, create,
- flag, next_pgofs);
+ flag, next_pgofs,
+ NO_CHECK_TYPE);
}
static int get_data_block_dio(struct inode *inode, sector_t iblock,
struct buffer_head *bh_result, int create)
{
return __get_data_block(inode, iblock, bh_result, create,
- F2FS_GET_BLOCK_DEFAULT, NULL);
+ F2FS_GET_BLOCK_DEFAULT, NULL,
+ rw_hint_to_seg_type(
+ inode->i_write_hint));
}
static int get_data_block_bmap(struct inode *inode, sector_t iblock,
@@ -1094,7 +1162,8 @@ static int get_data_block_bmap(struct inode *inode, sector_t iblock,
return -EFBIG;
return __get_data_block(inode, iblock, bh_result, create,
- F2FS_GET_BLOCK_BMAP, NULL);
+ F2FS_GET_BLOCK_BMAP, NULL,
+ NO_CHECK_TYPE);
}
static inline sector_t logical_to_blk(struct inode *inode, loff_t offset)
@@ -1107,6 +1176,68 @@ static inline loff_t blk_to_logical(struct inode *inode, sector_t blk)
return (blk << inode->i_blkbits);
}
+static int f2fs_xattr_fiemap(struct inode *inode,
+ struct fiemap_extent_info *fieinfo)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ struct page *page;
+ struct node_info ni;
+ __u64 phys = 0, len;
+ __u32 flags;
+ nid_t xnid = F2FS_I(inode)->i_xattr_nid;
+ int err = 0;
+
+ if (f2fs_has_inline_xattr(inode)) {
+ int offset;
+
+ page = f2fs_grab_cache_page(NODE_MAPPING(sbi),
+ inode->i_ino, false);
+ if (!page)
+ return -ENOMEM;
+
+ get_node_info(sbi, inode->i_ino, &ni);
+
+ phys = (__u64)blk_to_logical(inode, ni.blk_addr);
+ offset = offsetof(struct f2fs_inode, i_addr) +
+ sizeof(__le32) * (DEF_ADDRS_PER_INODE -
+ get_inline_xattr_addrs(inode));
+
+ phys += offset;
+ len = inline_xattr_size(inode);
+
+ f2fs_put_page(page, 1);
+
+ flags = FIEMAP_EXTENT_DATA_INLINE | FIEMAP_EXTENT_NOT_ALIGNED;
+
+ if (!xnid)
+ flags |= FIEMAP_EXTENT_LAST;
+
+ err = fiemap_fill_next_extent(fieinfo, 0, phys, len, flags);
+ if (err || err == 1)
+ return err;
+ }
+
+ if (xnid) {
+ page = f2fs_grab_cache_page(NODE_MAPPING(sbi), xnid, false);
+ if (!page)
+ return -ENOMEM;
+
+ get_node_info(sbi, xnid, &ni);
+
+ phys = (__u64)blk_to_logical(inode, ni.blk_addr);
+ len = inode->i_sb->s_blocksize;
+
+ f2fs_put_page(page, 1);
+
+ flags = FIEMAP_EXTENT_LAST;
+ }
+
+ if (phys)
+ err = fiemap_fill_next_extent(fieinfo, 0, phys, len, flags);
+
+ return (err < 0 ? err : 0);
+}
+
int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
u64 start, u64 len)
{
@@ -1117,18 +1248,29 @@ int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
u32 flags = 0;
int ret = 0;
- ret = fiemap_check_flags(fieinfo, FIEMAP_FLAG_SYNC);
+ if (fieinfo->fi_flags & FIEMAP_FLAG_CACHE) {
+ ret = f2fs_precache_extents(inode);
+ if (ret)
+ return ret;
+ }
+
+ ret = fiemap_check_flags(fieinfo, FIEMAP_FLAG_SYNC | FIEMAP_FLAG_XATTR);
if (ret)
return ret;
+ inode_lock(inode);
+
+ if (fieinfo->fi_flags & FIEMAP_FLAG_XATTR) {
+ ret = f2fs_xattr_fiemap(inode, fieinfo);
+ goto out;
+ }
+
if (f2fs_has_inline_data(inode)) {
ret = f2fs_inline_data_fiemap(inode, fieinfo, start, len);
if (ret != -EAGAIN)
- return ret;
+ goto out;
}
- inode_lock(inode);
-
if (logical_to_blk(inode, len) == 0)
len = blk_to_logical(inode, 1);
@@ -1198,7 +1340,6 @@ static int f2fs_mpage_readpages(struct address_space *mapping,
unsigned nr_pages)
{
struct bio *bio = NULL;
- unsigned page_idx;
sector_t last_block_in_bio = 0;
struct inode *inode = mapping->host;
const unsigned blkbits = inode->i_blkbits;
@@ -1214,9 +1355,10 @@ static int f2fs_mpage_readpages(struct address_space *mapping,
map.m_len = 0;
map.m_flags = 0;
map.m_next_pgofs = NULL;
+ map.m_next_extent = NULL;
+ map.m_seg_type = NO_CHECK_TYPE;
- for (page_idx = 0; nr_pages; page_idx++, nr_pages--) {
-
+ for (; nr_pages; nr_pages--) {
if (pages) {
page = list_last_entry(pages, struct page, lru);
@@ -1376,18 +1518,79 @@ retry_encrypt:
return PTR_ERR(fio->encrypted_page);
}
+static inline bool check_inplace_update_policy(struct inode *inode,
+ struct f2fs_io_info *fio)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ unsigned int policy = SM_I(sbi)->ipu_policy;
+
+ if (policy & (0x1 << F2FS_IPU_FORCE))
+ return true;
+ if (policy & (0x1 << F2FS_IPU_SSR) && need_SSR(sbi))
+ return true;
+ if (policy & (0x1 << F2FS_IPU_UTIL) &&
+ utilization(sbi) > SM_I(sbi)->min_ipu_util)
+ return true;
+ if (policy & (0x1 << F2FS_IPU_SSR_UTIL) && need_SSR(sbi) &&
+ utilization(sbi) > SM_I(sbi)->min_ipu_util)
+ return true;
+
+ /*
+ * IPU for rewrite async pages
+ */
+ if (policy & (0x1 << F2FS_IPU_ASYNC) &&
+ fio && fio->op == REQ_OP_WRITE &&
+ !(fio->op_flags & REQ_SYNC) &&
+ !f2fs_encrypted_inode(inode))
+ return true;
+
+ /* this is only set during fdatasync */
+ if (policy & (0x1 << F2FS_IPU_FSYNC) &&
+ is_inode_flag_set(inode, FI_NEED_IPU))
+ return true;
+
+ return false;
+}
+
+bool should_update_inplace(struct inode *inode, struct f2fs_io_info *fio)
+{
+ if (f2fs_is_pinned_file(inode))
+ return true;
+
+ /* if this is cold file, we should overwrite to avoid fragmentation */
+ if (file_is_cold(inode))
+ return true;
+
+ return check_inplace_update_policy(inode, fio);
+}
+
+bool should_update_outplace(struct inode *inode, struct f2fs_io_info *fio)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+
+ if (test_opt(sbi, LFS))
+ return true;
+ if (S_ISDIR(inode->i_mode))
+ return true;
+ if (f2fs_is_atomic_file(inode))
+ return true;
+ if (fio) {
+ if (is_cold_data(fio->page))
+ return true;
+ if (IS_ATOMIC_WRITTEN_PAGE(fio->page))
+ return true;
+ }
+ return false;
+}
+
static inline bool need_inplace_update(struct f2fs_io_info *fio)
{
struct inode *inode = fio->page->mapping->host;
- if (S_ISDIR(inode->i_mode) || f2fs_is_atomic_file(inode))
- return false;
- if (is_cold_data(fio->page))
- return false;
- if (IS_ATOMIC_WRITTEN_PAGE(fio->page))
+ if (should_update_outplace(inode, fio))
return false;
- return need_inplace_update_policy(inode, fio);
+ return should_update_inplace(inode, fio);
}
static inline bool valid_ipu_blkaddr(struct f2fs_io_info *fio)
@@ -1508,10 +1711,17 @@ static int __write_data_page(struct page *page, bool *submitted,
.submitted = false,
.need_lock = LOCK_RETRY,
.io_type = io_type,
+ .io_wbc = wbc,
};
trace_f2fs_writepage(page, DATA);
+ /* we should bypass data pages to proceed the kworkder jobs */
+ if (unlikely(f2fs_cp_error(sbi))) {
+ mapping_set_error(page->mapping, -EIO);
+ goto out;
+ }
+
if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
goto redirty_out;
@@ -1536,12 +1746,6 @@ write:
available_free_memory(sbi, BASE_CHECK))))
goto redirty_out;
- /* we should bypass data pages to proceed the kworkder jobs */
- if (unlikely(f2fs_cp_error(sbi))) {
- mapping_set_error(page->mapping, -EIO);
- goto out;
- }
-
/* Dentry blocks are controlled by checkpoint */
if (S_ISDIR(inode->i_mode)) {
fio.need_lock = LOCK_DONE;
@@ -1571,10 +1775,14 @@ write:
}
}
- down_write(&F2FS_I(inode)->i_sem);
- if (F2FS_I(inode)->last_disk_size < psize)
- F2FS_I(inode)->last_disk_size = psize;
- up_write(&F2FS_I(inode)->i_sem);
+ if (err) {
+ file_set_keep_isize(inode);
+ } else {
+ down_write(&F2FS_I(inode)->i_sem);
+ if (F2FS_I(inode)->last_disk_size < psize)
+ F2FS_I(inode)->last_disk_size = psize;
+ up_write(&F2FS_I(inode)->i_sem);
+ }
done:
if (err && err != -ENOENT)
@@ -1933,7 +2141,7 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping,
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
struct page *page = NULL;
pgoff_t index = ((unsigned long long) pos) >> PAGE_SHIFT;
- bool need_balance = false;
+ bool need_balance = false, drop_atomic = false;
block_t blkaddr = NULL_ADDR;
int err = 0;
@@ -1942,6 +2150,7 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping,
if (f2fs_is_atomic_file(inode) &&
!available_free_memory(sbi, INMEM_PAGES)) {
err = -ENOMEM;
+ drop_atomic = true;
goto fail;
}
@@ -2022,7 +2231,7 @@ repeat:
fail:
f2fs_put_page(page, 1);
f2fs_write_failed(mapping, pos + len);
- if (f2fs_is_atomic_file(inode))
+ if (drop_atomic)
drop_inmem_pages_all(sbi);
return err;
}