#include <linux/nls.h>
#include <linux/sched/signal.h>
#include <linux/fileattr.h>
+#include <linux/fadvise.h>
#include "f2fs.h"
#include "node.h"
#include "xattr.h"
#include "acl.h"
#include "gc.h"
+#include "iostat.h"
#include <trace/events/f2fs.h>
#include <uapi/linux/f2fs.h>
};
unsigned int seq_id = 0;
- if (unlikely(f2fs_readonly(inode->i_sb) ||
- is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
+ if (unlikely(f2fs_readonly(inode->i_sb)))
return 0;
trace_f2fs_sync_file_enter(inode);
ret = file_write_and_wait_range(file, start, end);
clear_inode_flag(inode, FI_NEED_IPU);
- if (ret) {
+ if (ret || is_sbi_flag_set(sbi, SBI_CP_DISABLED)) {
trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);
return ret;
}
f2fs_exist_written_data(sbi, ino, UPDATE_INO))
goto flush_out;
goto out;
+ } else {
+ /*
+ * for OPU case, during fsync(), node can be persisted before
+ * data when lower device doesn't support write barrier, result
+ * in data corruption after SPO.
+ * So for strict fsync mode, force to use atomic write sematics
+ * to keep write order in between data/node and last node to
+ * avoid potential data corruption.
+ */
+ if (F2FS_OPTION(sbi).fsync_mode ==
+ FSYNC_MODE_STRICT && !atomic)
+ atomic = true;
}
go_write:
/*
return err;
#ifdef CONFIG_F2FS_FS_COMPRESSION
+ /*
+ * For compressed file, after release compress blocks, don't allow write
+ * direct, but we should allow write direct after truncate to zero.
+ */
+ if (f2fs_compressed_file(inode) && !free_from
+ && is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
+ clear_inode_flag(inode, FI_COMPRESS_RELEASED);
+
if (from != free_from) {
err = f2fs_truncate_partial_cluster(inode, from, lock);
if (err)
}
if (pg_start < pg_end) {
- struct address_space *mapping = inode->i_mapping;
loff_t blk_start, blk_end;
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
blk_end = (loff_t)pg_end << PAGE_SHIFT;
down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
- filemap_invalidate_lock(mapping);
+ filemap_invalidate_lock(inode->i_mapping);
- truncate_inode_pages_range(mapping, blk_start,
- blk_end - 1);
+ truncate_pagecache_range(inode, blk_start, blk_end - 1);
f2fs_lock_op(sbi);
ret = f2fs_truncate_hole(inode, pg_start, pg_end);
f2fs_unlock_op(sbi);
- filemap_invalidate_unlock(mapping);
+ filemap_invalidate_unlock(inode->i_mapping);
up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
}
}
released_blocks += ret;
}
- up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
filemap_invalidate_unlock(inode->i_mapping);
+ up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
out:
inode_unlock(inode);
reserved_blocks += ret;
}
- up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
filemap_invalidate_unlock(inode->i_mapping);
+ up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
if (ret >= 0) {
clear_inode_flag(inode, FI_COMPRESS_RELEASED);
* back to buffered IO.
*/
if (!f2fs_force_buffered_io(inode, iocb, from) &&
- allow_outplace_dio(inode, iocb, from))
+ f2fs_lfs_mode(F2FS_I_SB(inode)))
goto write;
}
preallocated = true;
return ret;
}
+static int f2fs_file_fadvise(struct file *filp, loff_t offset, loff_t len,
+ int advice)
+{
+ struct inode *inode;
+ struct address_space *mapping;
+ struct backing_dev_info *bdi;
+
+ if (advice == POSIX_FADV_SEQUENTIAL) {
+ inode = file_inode(filp);
+ if (S_ISFIFO(inode->i_mode))
+ return -ESPIPE;
+
+ mapping = filp->f_mapping;
+ if (!mapping || len < 0)
+ return -EINVAL;
+
+ bdi = inode_to_bdi(mapping->host);
+ filp->f_ra.ra_pages = bdi->ra_pages *
+ F2FS_I_SB(inode)->seq_file_ra_mul;
+ spin_lock(&filp->f_lock);
+ filp->f_mode &= ~FMODE_RANDOM;
+ spin_unlock(&filp->f_lock);
+ return 0;
+ }
+
+ return generic_fadvise(filp, offset, len, advice);
+}
+
#ifdef CONFIG_COMPAT
struct compat_f2fs_gc_range {
u32 sync;
#endif
.splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
+ .fadvise = f2fs_file_fadvise,
};