5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ritesh Harjani <riteshh@xxxxxxxxxxxxx> [ Upstream commit 78be0471da4e9fff874307d73d68f0173fa6a154 ] Currently ext4_fc_track_template() checks, whether the trace event path belongs to replay or does sb has ineligible set, if yes it simply returns. This patch pulls those checks before calling ext4_fc_track_template() in the callers of ext4_fc_track_template(). [ Add checks to ext4_rename() which calls the __ext4_fc_track_*() functions directly. -- TYT ] Signed-off-by: Ritesh Harjani <riteshh@xxxxxxxxxxxxx> Link: https://lore.kernel.org/r/3cd025d9c490218a92e6d8fb30b6123e693373e3.1647057583.git.riteshh@xxxxxxxxxxxxx Signed-off-by: Theodore Ts'o <tytso@xxxxxxx> Stable-dep-of: 7882b0187bbe ("ext4: don't track ranges in fast_commit if inode has inlined data") Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- fs/ext4/fast_commit.c | 59 +++++++++++++++++++++++++++++++++++-------- fs/ext4/namei.c | 15 ++++++++--- 2 files changed, 60 insertions(+), 14 deletions(-) diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c index 2660c34c770e3..c6814edf0ce0a 100644 --- a/fs/ext4/fast_commit.c +++ b/fs/ext4/fast_commit.c @@ -353,13 +353,6 @@ static int ext4_fc_track_template( tid_t tid = 0; int ret; - if (!test_opt2(inode->i_sb, JOURNAL_FAST_COMMIT) || - (sbi->s_mount_state & EXT4_FC_REPLAY)) - return -EOPNOTSUPP; - - if (ext4_test_mount_flag(inode->i_sb, EXT4_MF_FC_INELIGIBLE)) - return -EINVAL; - tid = handle->h_transaction->t_tid; mutex_lock(&ei->i_fc_lock); if (tid == ei->i_sync_tid) { @@ -468,7 +461,17 @@ void __ext4_fc_track_unlink(handle_t *handle, void ext4_fc_track_unlink(handle_t *handle, struct dentry *dentry) { - __ext4_fc_track_unlink(handle, d_inode(dentry), dentry); + struct inode *inode = d_inode(dentry); + struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); + + if (!test_opt2(inode->i_sb, JOURNAL_FAST_COMMIT) || + (sbi->s_mount_state & EXT4_FC_REPLAY)) + return; + + if (ext4_test_mount_flag(inode->i_sb, EXT4_MF_FC_INELIGIBLE)) + return; + + __ext4_fc_track_unlink(handle, inode, dentry); } void __ext4_fc_track_link(handle_t *handle, @@ -487,7 +490,17 @@ void __ext4_fc_track_link(handle_t *handle, void ext4_fc_track_link(handle_t *handle, struct dentry *dentry) { - __ext4_fc_track_link(handle, d_inode(dentry), dentry); + struct inode *inode = d_inode(dentry); + struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); + + if (!test_opt2(inode->i_sb, JOURNAL_FAST_COMMIT) || + (sbi->s_mount_state & EXT4_FC_REPLAY)) + return; + + if (ext4_test_mount_flag(inode->i_sb, EXT4_MF_FC_INELIGIBLE)) + return; + + __ext4_fc_track_link(handle, inode, dentry); } void __ext4_fc_track_create(handle_t *handle, struct inode *inode, @@ -506,7 +519,17 @@ void __ext4_fc_track_create(handle_t *handle, struct inode *inode, void ext4_fc_track_create(handle_t *handle, struct dentry *dentry) { - __ext4_fc_track_create(handle, d_inode(dentry), dentry); + struct inode *inode = d_inode(dentry); + struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); + + if (!test_opt2(inode->i_sb, JOURNAL_FAST_COMMIT) || + (sbi->s_mount_state & EXT4_FC_REPLAY)) + return; + + if (ext4_test_mount_flag(inode->i_sb, EXT4_MF_FC_INELIGIBLE)) + return; + + __ext4_fc_track_create(handle, inode, dentry); } /* __track_fn for inode tracking */ @@ -522,6 +545,7 @@ static int __track_inode(struct inode *inode, void *arg, bool update) void ext4_fc_track_inode(handle_t *handle, struct inode *inode) { + struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); int ret; if (S_ISDIR(inode->i_mode)) @@ -533,6 +557,13 @@ void ext4_fc_track_inode(handle_t *handle, struct inode *inode) return; } + if (!test_opt2(inode->i_sb, JOURNAL_FAST_COMMIT) || + (sbi->s_mount_state & EXT4_FC_REPLAY)) + return; + + if (ext4_test_mount_flag(inode->i_sb, EXT4_MF_FC_INELIGIBLE)) + return; + ret = ext4_fc_track_template(handle, inode, __track_inode, NULL, 1); trace_ext4_fc_track_inode(inode, ret); } @@ -572,12 +603,20 @@ static int __track_range(struct inode *inode, void *arg, bool update) void ext4_fc_track_range(handle_t *handle, struct inode *inode, ext4_lblk_t start, ext4_lblk_t end) { + struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); struct __track_range_args args; int ret; if (S_ISDIR(inode->i_mode)) return; + if (!test_opt2(inode->i_sb, JOURNAL_FAST_COMMIT) || + (sbi->s_mount_state & EXT4_FC_REPLAY)) + return; + + if (ext4_test_mount_flag(inode->i_sb, EXT4_MF_FC_INELIGIBLE)) + return; + args.start = start; args.end = end; diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index e9501fb28477b..eb32cd1e74773 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -4011,12 +4011,19 @@ static int ext4_rename(struct user_namespace *mnt_userns, struct inode *old_dir, ext4_fc_mark_ineligible(old.inode->i_sb, EXT4_FC_REASON_RENAME_DIR, handle); } else { + struct super_block *sb = old.inode->i_sb; + if (new.inode) ext4_fc_track_unlink(handle, new.dentry); - __ext4_fc_track_link(handle, old.inode, new.dentry); - __ext4_fc_track_unlink(handle, old.inode, old.dentry); - if (whiteout) - __ext4_fc_track_create(handle, whiteout, old.dentry); + if (test_opt2(sb, JOURNAL_FAST_COMMIT) && + !(EXT4_SB(sb)->s_mount_state & EXT4_FC_REPLAY) && + !(ext4_test_mount_flag(sb, EXT4_MF_FC_INELIGIBLE))) { + __ext4_fc_track_link(handle, old.inode, new.dentry); + __ext4_fc_track_unlink(handle, old.inode, old.dentry); + if (whiteout) + __ext4_fc_track_create(handle, whiteout, + old.dentry); + } } if (new.inode) { -- 2.43.0
