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f2fs: use kvmalloc, if kmalloc is failed

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One report says memalloc failure during mount.

 (unwind_backtrace) from [<c010cd4c>] (show_stack+0x10/0x14)
 (show_stack) from [<c049c6b8>] (dump_stack+0x8c/0xa0)
 (dump_stack) from [<c024fcf0>] (warn_alloc+0xc4/0x160)
 (warn_alloc) from [<c0250218>] (__alloc_pages_nodemask+0x3f4/0x10d0)
 (__alloc_pages_nodemask) from [<c0270450>] (kmalloc_order_trace+0x2c/0x120)
 (kmalloc_order_trace) from [<c03fa748>] (build_node_manager+0x35c/0x688)
 (build_node_manager) from [<c03de494>] (f2fs_fill_super+0xf0c/0x16cc)
 (f2fs_fill_super) from [<c02a5864>] (mount_bdev+0x15c/0x188)
 (mount_bdev) from [<c03da624>] (f2fs_mount+0x18/0x20)
 (f2fs_mount) from [<c02a68b8>] (mount_fs+0x158/0x19c)
 (mount_fs) from [<c02c3c9c>] (vfs_kern_mount+0x78/0x134)
 (vfs_kern_mount) from [<c02c76ac>] (do_mount+0x474/0xca4)
 (do_mount) from [<c02c8264>] (SyS_mount+0x94/0xbc)
 (SyS_mount) from [<c0108180>] (ret_fast_syscall+0x0/0x48)

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2018-12-13 18:38:33 -08:00
parent af56b48708
commit 5222595d09
11 changed files with 76 additions and 70 deletions
Download patch file Download diff file Expand all files Collapse all files

36
fs/f2fs/segment.c
View file

@ -706,7 +706,7 @@ init_thread:
"f2fs_flush-%u:%u", MAJOR(dev), MINOR(dev));
if (IS_ERR(fcc->f2fs_issue_flush)) {
err = PTR_ERR(fcc->f2fs_issue_flush);
kfree(fcc);
kvfree(fcc);
SM_I(sbi)->fcc_info = NULL;
return err;
}
@ -725,7 +725,7 @@ void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free)
kthread_stop(flush_thread);
}
if (free) {
kfree(fcc);
kvfree(fcc);
SM_I(sbi)->fcc_info = NULL;
}
}
@ -2013,7 +2013,7 @@ init_thread:
"f2fs_discard-%u:%u", MAJOR(dev), MINOR(dev));
if (IS_ERR(dcc->f2fs_issue_discard)) {
err = PTR_ERR(dcc->f2fs_issue_discard);
kfree(dcc);
kvfree(dcc);
SM_I(sbi)->dcc_info = NULL;
return err;
}
@ -2030,7 +2030,7 @@ static void destroy_discard_cmd_control(struct f2fs_sb_info *sbi)
f2fs_stop_discard_thread(sbi);
kfree(dcc);
kvfree(dcc);
SM_I(sbi)->dcc_info = NULL;
}
@ -4317,7 +4317,7 @@ static void destroy_dirty_segmap(struct f2fs_sb_info *sbi)
destroy_victim_secmap(sbi);
SM_I(sbi)->dirty_info = NULL;
kfree(dirty_i);
kvfree(dirty_i);
}
static void destroy_curseg(struct f2fs_sb_info *sbi)
@ -4329,10 +4329,10 @@ static void destroy_curseg(struct f2fs_sb_info *sbi)
return;
SM_I(sbi)->curseg_array = NULL;
for (i = 0; i < NR_CURSEG_TYPE; i++) {
kfree(array[i].sum_blk);
kfree(array[i].journal);
kvfree(array[i].sum_blk);
kvfree(array[i].journal);
}
kfree(array);
kvfree(array);
}
static void destroy_free_segmap(struct f2fs_sb_info *sbi)
@ -4343,7 +4343,7 @@ static void destroy_free_segmap(struct f2fs_sb_info *sbi)
SM_I(sbi)->free_info = NULL;
kvfree(free_i->free_segmap);
kvfree(free_i->free_secmap);
kfree(free_i);
kvfree(free_i);
}
static void destroy_sit_info(struct f2fs_sb_info *sbi)
@ -4356,26 +4356,26 @@ static void destroy_sit_info(struct f2fs_sb_info *sbi)
if (sit_i->sentries) {
for (start = 0; start < MAIN_SEGS(sbi); start++) {
kfree(sit_i->sentries[start].cur_valid_map);
kvfree(sit_i->sentries[start].cur_valid_map);
#ifdef CONFIG_F2FS_CHECK_FS
kfree(sit_i->sentries[start].cur_valid_map_mir);
kvfree(sit_i->sentries[start].cur_valid_map_mir);
#endif
kfree(sit_i->sentries[start].ckpt_valid_map);
kfree(sit_i->sentries[start].discard_map);
kvfree(sit_i->sentries[start].ckpt_valid_map);
kvfree(sit_i->sentries[start].discard_map);
}
}
kfree(sit_i->tmp_map);
kvfree(sit_i->tmp_map);
kvfree(sit_i->sentries);
kvfree(sit_i->sec_entries);
kvfree(sit_i->dirty_sentries_bitmap);
SM_I(sbi)->sit_info = NULL;
kfree(sit_i->sit_bitmap);
kvfree(sit_i->sit_bitmap);
#ifdef CONFIG_F2FS_CHECK_FS
kfree(sit_i->sit_bitmap_mir);
kvfree(sit_i->sit_bitmap_mir);
#endif
kfree(sit_i);
kvfree(sit_i);
}
void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi)
@ -4391,7 +4391,7 @@ void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi)
destroy_free_segmap(sbi);
destroy_sit_info(sbi);
sbi->sm_info = NULL;
kfree(sm_info);
kvfree(sm_info);
}
int __init f2fs_create_segment_manager_caches(void)