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-rw-r--r--fs/f2fs/segment.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 245acb34cab5..d1d394cdf61d 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -497,6 +497,33 @@ static inline int reserved_sections(struct f2fs_sb_info *sbi)
return GET_SEC_FROM_SEG(sbi, (unsigned int)reserved_segments(sbi));
}
+static inline bool has_curseg_enough_space(struct f2fs_sb_info *sbi)
+{
+ unsigned int node_blocks = get_pages(sbi, F2FS_DIRTY_NODES) +
+ get_pages(sbi, F2FS_DIRTY_DENTS);
+ unsigned int dent_blocks = get_pages(sbi, F2FS_DIRTY_DENTS);
+ unsigned int segno, left_blocks;
+ int i;
+
+ /* check current node segment */
+ for (i = CURSEG_HOT_NODE; i <= CURSEG_COLD_NODE; i++) {
+ segno = CURSEG_I(sbi, i)->segno;
+ left_blocks = sbi->blocks_per_seg -
+ get_seg_entry(sbi, segno)->ckpt_valid_blocks;
+
+ if (node_blocks > left_blocks)
+ return false;
+ }
+
+ /* check current data segment */
+ segno = CURSEG_I(sbi, CURSEG_HOT_DATA)->segno;
+ left_blocks = sbi->blocks_per_seg -
+ get_seg_entry(sbi, segno)->ckpt_valid_blocks;
+ if (dent_blocks > left_blocks)
+ return false;
+ return true;
+}
+
static inline bool has_not_enough_free_secs(struct f2fs_sb_info *sbi,
int freed, int needed)
{
@@ -507,6 +534,9 @@ static inline bool has_not_enough_free_secs(struct f2fs_sb_info *sbi,
if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
return false;
+ if (free_sections(sbi) + freed == reserved_sections(sbi) + needed &&
+ has_curseg_enough_space(sbi))
+ return false;
return (free_sections(sbi) + freed) <=
(node_secs + 2 * dent_secs + imeta_secs +
reserved_sections(sbi) + needed);