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authorDarrick J. Wong <darrick.wong@oracle.com>2015-10-17 16:18:45 -0400
committerTheodore Ts'o <tytso@mit.edu>2015-10-17 16:18:45 -0400
commit56316a0d28f251dae6a3bc2b6d50e7c25389871f (patch)
tree3efd106c76cee48c0831930f75cf2b6c160368f6 /fs/jbd2
parente2b911c53584a92266943f3b7f2cdbc19c1a4e80 (diff)
downloadlinux-56316a0d28f251dae6a3bc2b6d50e7c25389871f.tar.bz2
jbd2: clean up feature test macros with predicate functions
Create separate predicate functions to test/set/clear feature flags, thereby replacing the wordy old macros. Furthermore, clean out the places where we open-coded feature tests. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/jbd2')
-rw-r--r--fs/jbd2/commit.c22
-rw-r--r--fs/jbd2/journal.c12
-rw-r--r--fs/jbd2/recovery.c18
-rw-r--r--fs/jbd2/revoke.c4
4 files changed, 23 insertions, 33 deletions
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 362e5f614450..36345fefa3ff 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -142,8 +142,7 @@ static int journal_submit_commit_record(journal_t *journal,
tmp->h_commit_sec = cpu_to_be64(now.tv_sec);
tmp->h_commit_nsec = cpu_to_be32(now.tv_nsec);
- if (JBD2_HAS_COMPAT_FEATURE(journal,
- JBD2_FEATURE_COMPAT_CHECKSUM)) {
+ if (jbd2_has_feature_checksum(journal)) {
tmp->h_chksum_type = JBD2_CRC32_CHKSUM;
tmp->h_chksum_size = JBD2_CRC32_CHKSUM_SIZE;
tmp->h_chksum[0] = cpu_to_be32(crc32_sum);
@@ -157,8 +156,7 @@ static int journal_submit_commit_record(journal_t *journal,
bh->b_end_io = journal_end_buffer_io_sync;
if (journal->j_flags & JBD2_BARRIER &&
- !JBD2_HAS_INCOMPAT_FEATURE(journal,
- JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT))
+ !jbd2_has_feature_async_commit(journal))
ret = submit_bh(WRITE_SYNC | WRITE_FLUSH_FUA, bh);
else
ret = submit_bh(WRITE_SYNC, bh);
@@ -317,7 +315,7 @@ static void write_tag_block(journal_t *j, journal_block_tag_t *tag,
unsigned long long block)
{
tag->t_blocknr = cpu_to_be32(block & (u32)~0);
- if (JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_64BIT))
+ if (jbd2_has_feature_64bit(j))
tag->t_blocknr_high = cpu_to_be32((block >> 31) >> 1);
}
@@ -356,7 +354,7 @@ static void jbd2_block_tag_csum_set(journal_t *j, journal_block_tag_t *tag,
bh->b_size);
kunmap_atomic(addr);
- if (JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V3))
+ if (jbd2_has_feature_csum3(j))
tag3->t_checksum = cpu_to_be32(csum32);
else
tag->t_checksum = cpu_to_be16(csum32);
@@ -730,8 +728,7 @@ start_journal_io:
/*
* Compute checksum.
*/
- if (JBD2_HAS_COMPAT_FEATURE(journal,
- JBD2_FEATURE_COMPAT_CHECKSUM)) {
+ if (jbd2_has_feature_checksum(journal)) {
crc32_sum =
jbd2_checksum_data(crc32_sum, bh);
}
@@ -797,8 +794,7 @@ start_journal_io:
blkdev_issue_flush(journal->j_fs_dev, GFP_NOFS, NULL);
/* Done it all: now write the commit record asynchronously. */
- if (JBD2_HAS_INCOMPAT_FEATURE(journal,
- JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT)) {
+ if (jbd2_has_feature_async_commit(journal)) {
err = journal_submit_commit_record(journal, commit_transaction,
&cbh, crc32_sum);
if (err)
@@ -889,8 +885,7 @@ start_journal_io:
commit_transaction->t_state = T_COMMIT_JFLUSH;
write_unlock(&journal->j_state_lock);
- if (!JBD2_HAS_INCOMPAT_FEATURE(journal,
- JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT)) {
+ if (!jbd2_has_feature_async_commit(journal)) {
err = journal_submit_commit_record(journal, commit_transaction,
&cbh, crc32_sum);
if (err)
@@ -898,8 +893,7 @@ start_journal_io:
}
if (cbh)
err = journal_wait_on_commit_record(journal, cbh);
- if (JBD2_HAS_INCOMPAT_FEATURE(journal,
- JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT) &&
+ if (jbd2_has_feature_async_commit(journal) &&
journal->j_flags & JBD2_BARRIER) {
blkdev_issue_flush(journal->j_dev, GFP_NOFS, NULL);
}
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 474c1781c0ce..eb8a7546e8a4 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -1523,8 +1523,8 @@ static int journal_get_superblock(journal_t *journal)
goto out;
}
- if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V2) &&
- JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V3)) {
+ if (jbd2_has_feature_csum2(journal) &&
+ jbd2_has_feature_csum3(journal)) {
/* Can't have checksum v2 and v3 at the same time! */
printk(KERN_ERR "JBD2: Can't enable checksumming v2 and v3 "
"at the same time!\n");
@@ -1532,7 +1532,7 @@ static int journal_get_superblock(journal_t *journal)
}
if (jbd2_journal_has_csum_v2or3_feature(journal) &&
- JBD2_HAS_COMPAT_FEATURE(journal, JBD2_FEATURE_COMPAT_CHECKSUM)) {
+ jbd2_has_feature_checksum(journal)) {
/* Can't have checksum v1 and v2 on at the same time! */
printk(KERN_ERR "JBD2: Can't enable checksumming v1 and v2/3 "
"at the same time!\n");
@@ -2198,15 +2198,15 @@ size_t journal_tag_bytes(journal_t *journal)
{
size_t sz;
- if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V3))
+ if (jbd2_has_feature_csum3(journal))
return sizeof(journal_block_tag3_t);
sz = sizeof(journal_block_tag_t);
- if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V2))
+ if (jbd2_has_feature_csum2(journal))
sz += sizeof(__u16);
- if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_64BIT))
+ if (jbd2_has_feature_64bit(journal))
return sz;
else
return sz - sizeof(__u32);
diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c
index 5c836d78af3b..7f277e49fe88 100644
--- a/fs/jbd2/recovery.c
+++ b/fs/jbd2/recovery.c
@@ -342,7 +342,7 @@ static inline unsigned long long read_tag_block(journal_t *journal,
journal_block_tag_t *tag)
{
unsigned long long block = be32_to_cpu(tag->t_blocknr);
- if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_64BIT))
+ if (jbd2_has_feature_64bit(journal))
block |= (u64)be32_to_cpu(tag->t_blocknr_high) << 32;
return block;
}
@@ -411,7 +411,7 @@ static int jbd2_block_tag_csum_verify(journal_t *j, journal_block_tag_t *tag,
csum32 = jbd2_chksum(j, j->j_csum_seed, (__u8 *)&seq, sizeof(seq));
csum32 = jbd2_chksum(j, csum32, buf, j->j_blocksize);
- if (JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V3))
+ if (jbd2_has_feature_csum3(j))
return tag3->t_checksum == cpu_to_be32(csum32);
else
return tag->t_checksum == cpu_to_be16(csum32);
@@ -538,8 +538,7 @@ static int do_one_pass(journal_t *journal,
* just skip over the blocks it describes. */
if (pass != PASS_REPLAY) {
if (pass == PASS_SCAN &&
- JBD2_HAS_COMPAT_FEATURE(journal,
- JBD2_FEATURE_COMPAT_CHECKSUM) &&
+ jbd2_has_feature_checksum(journal) &&
!info->end_transaction) {
if (calc_chksums(journal, bh,
&next_log_block,
@@ -694,8 +693,7 @@ static int do_one_pass(journal_t *journal,
* much to do other than move on to the next sequence
* number. */
if (pass == PASS_SCAN &&
- JBD2_HAS_COMPAT_FEATURE(journal,
- JBD2_FEATURE_COMPAT_CHECKSUM)) {
+ jbd2_has_feature_checksum(journal)) {
int chksum_err, chksum_seen;
struct commit_header *cbh =
(struct commit_header *)bh->b_data;
@@ -735,8 +733,7 @@ static int do_one_pass(journal_t *journal,
if (chksum_err) {
info->end_transaction = next_commit_ID;
- if (!JBD2_HAS_INCOMPAT_FEATURE(journal,
- JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT)){
+ if (!jbd2_has_feature_async_commit(journal)) {
journal->j_failed_commit =
next_commit_ID;
brelse(bh);
@@ -750,8 +747,7 @@ static int do_one_pass(journal_t *journal,
bh->b_data)) {
info->end_transaction = next_commit_ID;
- if (!JBD2_HAS_INCOMPAT_FEATURE(journal,
- JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT)) {
+ if (!jbd2_has_feature_async_commit(journal)) {
journal->j_failed_commit =
next_commit_ID;
brelse(bh);
@@ -859,7 +855,7 @@ static int scan_revoke_records(journal_t *journal, struct buffer_head *bh,
return -EINVAL;
max = rcount;
- if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_64BIT))
+ if (jbd2_has_feature_64bit(journal))
record_len = 8;
while (offset + record_len <= max) {
diff --git a/fs/jbd2/revoke.c b/fs/jbd2/revoke.c
index 0abf2e7f725b..705ae577882b 100644
--- a/fs/jbd2/revoke.c
+++ b/fs/jbd2/revoke.c
@@ -589,7 +589,7 @@ static void write_one_revoke_record(journal_t *journal,
if (jbd2_journal_has_csum_v2or3(journal))
csum_size = sizeof(struct jbd2_journal_revoke_tail);
- if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_64BIT))
+ if (jbd2_has_feature_64bit(journal))
sz = 8;
else
sz = 4;
@@ -619,7 +619,7 @@ static void write_one_revoke_record(journal_t *journal,
*descriptorp = descriptor;
}
- if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_64BIT))
+ if (jbd2_has_feature_64bit(journal))
* ((__be64 *)(&descriptor->b_data[offset])) =
cpu_to_be64(record->blocknr);
else