From: "Darrick J. Wong" djwong@kernel.org
[ Upstream commit 2723234923b3294dbcf6019c288c87465e927ed4 ]
Move the code that allocates and frees the buffer cancellation tables used by log recovery into the file that actually uses the tables. This is a precursor to some cleanups and a memory leak fix.
( backport: dependency of 8db074bd84df5ccc88bff3f8f900f66f4b8349fa )
Signed-off-by: Darrick J. Wong djwong@kernel.org Reviewed-by: Christoph Hellwig hch@lst.de Reviewed-by: Dave Chinner dchinner@redhat.com Signed-off-by: Dave Chinner david@fromorbit.com Signed-off-by: Leah Rumancik leah.rumancik@gmail.com Acked-by: Chandan Babu R chandanbabu@kernel.org --- fs/xfs/libxfs/xfs_log_recover.h | 14 +++++----- fs/xfs/xfs_buf_item_recover.c | 47 +++++++++++++++++++++++++++++++++ fs/xfs/xfs_log_priv.h | 3 --- fs/xfs/xfs_log_recover.c | 32 +++++++--------------- 4 files changed, 64 insertions(+), 32 deletions(-)
diff --git a/fs/xfs/libxfs/xfs_log_recover.h b/fs/xfs/libxfs/xfs_log_recover.h index ff69a0000817..b8b65a6e9b1e 100644 --- a/fs/xfs/libxfs/xfs_log_recover.h +++ b/fs/xfs/libxfs/xfs_log_recover.h @@ -108,12 +108,6 @@ struct xlog_recover {
#define ITEM_TYPE(i) (*(unsigned short *)(i)->ri_buf[0].i_addr)
-/* - * This is the number of entries in the l_buf_cancel_table used during - * recovery. - */ -#define XLOG_BC_TABLE_SIZE 64 - #define XLOG_RECOVER_CRCPASS 0 #define XLOG_RECOVER_PASS1 1 #define XLOG_RECOVER_PASS2 2 @@ -126,5 +120,13 @@ int xlog_recover_iget(struct xfs_mount *mp, xfs_ino_t ino, struct xfs_inode **ipp); void xlog_recover_release_intent(struct xlog *log, unsigned short intent_type, uint64_t intent_id); +void xlog_alloc_buf_cancel_table(struct xlog *log); +void xlog_free_buf_cancel_table(struct xlog *log); + +#ifdef DEBUG +void xlog_check_buf_cancel_table(struct xlog *log); +#else +#define xlog_check_buf_cancel_table(log) do { } while (0) +#endif
#endif /* __XFS_LOG_RECOVER_H__ */ diff --git a/fs/xfs/xfs_buf_item_recover.c b/fs/xfs/xfs_buf_item_recover.c index e04e44ef14c6..dc099b2f4984 100644 --- a/fs/xfs/xfs_buf_item_recover.c +++ b/fs/xfs/xfs_buf_item_recover.c @@ -23,6 +23,15 @@ #include "xfs_dir2.h" #include "xfs_quota.h"
+/* + * This is the number of entries in the l_buf_cancel_table used during + * recovery. + */ +#define XLOG_BC_TABLE_SIZE 64 + +#define XLOG_BUF_CANCEL_BUCKET(log, blkno) \ + ((log)->l_buf_cancel_table + ((uint64_t)blkno % XLOG_BC_TABLE_SIZE)) + /* * This structure is used during recovery to record the buf log items which * have been canceled and should not be replayed. @@ -1003,3 +1012,41 @@ const struct xlog_recover_item_ops xlog_buf_item_ops = { .commit_pass1 = xlog_recover_buf_commit_pass1, .commit_pass2 = xlog_recover_buf_commit_pass2, }; + +#ifdef DEBUG +void +xlog_check_buf_cancel_table( + struct xlog *log) +{ + int i; + + for (i = 0; i < XLOG_BC_TABLE_SIZE; i++) + ASSERT(list_empty(&log->l_buf_cancel_table[i])); +} +#endif + +void +xlog_alloc_buf_cancel_table( + struct xlog *log) +{ + int i; + + ASSERT(log->l_buf_cancel_table == NULL); + + log->l_buf_cancel_table = kmem_zalloc(XLOG_BC_TABLE_SIZE * + sizeof(struct list_head), + 0); + for (i = 0; i < XLOG_BC_TABLE_SIZE; i++) + INIT_LIST_HEAD(&log->l_buf_cancel_table[i]); +} + +void +xlog_free_buf_cancel_table( + struct xlog *log) +{ + if (!log->l_buf_cancel_table) + return; + + kmem_free(log->l_buf_cancel_table); + log->l_buf_cancel_table = NULL; +} diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h index f3d68ca39f45..03393595676f 100644 --- a/fs/xfs/xfs_log_priv.h +++ b/fs/xfs/xfs_log_priv.h @@ -454,9 +454,6 @@ struct xlog { struct rw_semaphore l_incompat_users; };
-#define XLOG_BUF_CANCEL_BUCKET(log, blkno) \ - ((log)->l_buf_cancel_table + ((uint64_t)blkno % XLOG_BC_TABLE_SIZE)) - /* * Bits for operational state */ diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 581aeb288b32..18d8eebc2d44 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -3248,7 +3248,7 @@ xlog_do_log_recovery( xfs_daddr_t head_blk, xfs_daddr_t tail_blk) { - int error, i; + int error;
ASSERT(head_blk != tail_blk);
@@ -3256,37 +3256,23 @@ xlog_do_log_recovery( * First do a pass to find all of the cancelled buf log items. * Store them in the buf_cancel_table for use in the second pass. */ - log->l_buf_cancel_table = kmem_zalloc(XLOG_BC_TABLE_SIZE * - sizeof(struct list_head), - 0); - for (i = 0; i < XLOG_BC_TABLE_SIZE; i++) - INIT_LIST_HEAD(&log->l_buf_cancel_table[i]); + xlog_alloc_buf_cancel_table(log);
error = xlog_do_recovery_pass(log, head_blk, tail_blk, XLOG_RECOVER_PASS1, NULL); - if (error != 0) { - kmem_free(log->l_buf_cancel_table); - log->l_buf_cancel_table = NULL; - return error; - } + if (error != 0) + goto out_cancel; + /* * Then do a second pass to actually recover the items in the log. * When it is complete free the table of buf cancel items. */ error = xlog_do_recovery_pass(log, head_blk, tail_blk, XLOG_RECOVER_PASS2, NULL); -#ifdef DEBUG - if (!error) { - int i; - - for (i = 0; i < XLOG_BC_TABLE_SIZE; i++) - ASSERT(list_empty(&log->l_buf_cancel_table[i])); - } -#endif /* DEBUG */ - - kmem_free(log->l_buf_cancel_table); - log->l_buf_cancel_table = NULL; - + if (!error) + xlog_check_buf_cancel_table(log); +out_cancel: + xlog_free_buf_cancel_table(log); return error; }