Commit 0f0672ff authored by Harshad Shirwadkar's avatar Harshad Shirwadkar Committed by Theodore Ts'o
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ext4: add a mount opt to forcefully turn fast commits on 



This is a debug only mount option that forcefully turns fast commits
on at mount time.

Signed-off-by: default avatarHarshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20201015203802.3597742-9-harshadshirwadkar@gmail.com


Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
parent 8016e29f

fs/ext4/super.c

+5 −1
Original line number Diff line number Diff line
@@ -1719,8 +1719,9 @@ enum { 
	Opt_max_dir_size_kb, Opt_nojournal_checksum, Opt_nombcache,

	Opt_prefetch_block_bitmaps, Opt_no_fc,

#ifdef CONFIG_EXT4_DEBUG

	Opt_fc_debug_max_replay

	Opt_fc_debug_max_replay,

#endif

	Opt_fc_debug_force

};



static const match_table_t tokens = {
@@ -1808,6 +1809,7 @@ static const match_table_t tokens = { 
	{Opt_init_itable, "init_itable"},

	{Opt_noinit_itable, "noinit_itable"},

	{Opt_no_fc, "no_fc"},

	{Opt_fc_debug_force, "fc_debug_force"},

#ifdef CONFIG_EXT4_DEBUG

	{Opt_fc_debug_max_replay, "fc_debug_max_replay=%u"},

#endif
@@ -2040,6 +2042,8 @@ static const struct mount_opts { 
	 MOPT_SET},

	{Opt_no_fc, EXT4_MOUNT2_JOURNAL_FAST_COMMIT,

	 MOPT_CLEAR | MOPT_2 | MOPT_EXT4_ONLY},

	{Opt_fc_debug_force, EXT4_MOUNT2_JOURNAL_FAST_COMMIT,

	 MOPT_SET | MOPT_2 | MOPT_EXT4_ONLY},

#ifdef CONFIG_EXT4_DEBUG

	{Opt_fc_debug_max_replay, 0, MOPT_GTE0},

#endif

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