diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/f2fs/super.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 26bc3f7da..e94ffb79e 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -100,6 +100,7 @@ enum { Opt_noinline_data, Opt_data_flush, Opt_mode, + Opt_io_size_bits, Opt_fault_injection, Opt_err, }; @@ -130,6 +131,7 @@ static match_table_t f2fs_tokens = { {Opt_noinline_data, "noinline_data"}, {Opt_data_flush, "data_flush"}, {Opt_mode, "mode=%s"}, + {Opt_io_size_bits, "io_bits=%u"}, {Opt_fault_injection, "fault_injection=%u"}, {Opt_err, NULL}, }; @@ -530,6 +532,17 @@ static int parse_options(struct super_block *sb, char *options) } kfree(name); break; + case Opt_io_size_bits: + if (args->from && match_int(args, &arg)) + return -EINVAL; + if (arg > __ilog2_u32(BIO_MAX_PAGES)) { + f2fs_msg(sb, KERN_WARNING, + "Not support %d, larger than %d", + 1 << arg, BIO_MAX_PAGES); + return -EINVAL; + } + sbi->write_io_size_bits = arg; + break; case Opt_fault_injection: if (args->from && match_int(args, &arg)) return -EINVAL; @@ -547,6 +560,13 @@ static int parse_options(struct super_block *sb, char *options) return -EINVAL; } } + + if (F2FS_IO_SIZE_BITS(sbi) && !test_opt(sbi, LFS)) { + f2fs_msg(sb, KERN_ERR, + "Should set mode=lfs with %uKB-sized IO", + F2FS_IO_SIZE_KB(sbi)); + return -EINVAL; + } return 0; } @@ -904,6 +924,8 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root) else if (test_opt(sbi, LFS)) seq_puts(seq, "lfs"); seq_printf(seq, ",active_logs=%u", sbi->active_logs); + if (F2FS_IO_SIZE_BITS(sbi)) + seq_printf(seq, ",io_size=%uKB", F2FS_IO_SIZE_KB(sbi)); return 0; } |