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[XFS] Replace custom AIL linked-list code with struct list_head

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Replace the xfs_ail_entry_t with a struct list_head and clean the
surrounding code up. Also fixes a livelock in xfs_trans_first_push_ail()
by terminating the loop at the head of the list correctly.

SGI-PV: 978682
SGI-Modid: xfs-linux-melb:xfs-kern:30636a

Signed-off-by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
This commit is contained in:
Josef 'Jeff' Sipek
2008-03-27 17:58:27 +11:00
committed by Lachlan McIlroy
parent a45c796867
commit 535f6b3735
3 changed files with 63 additions and 97 deletions
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7
fs/xfs/xfs_trans.h
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@@ -113,13 +113,8 @@ struct xfs_mount;
struct xfs_trans;
struct xfs_dquot_acct;
typedef struct xfs_ail_entry {
struct xfs_log_item *ail_forw; /* AIL forw pointer */
struct xfs_log_item *ail_back; /* AIL back pointer */
} xfs_ail_entry_t;
typedef struct xfs_log_item {
xfs_ail_entry_t li_ail; /* AIL pointers */
struct list_head li_ail; /* AIL pointers */
xfs_lsn_t li_lsn; /* last on-disk lsn */
struct xfs_log_item_desc *li_desc; /* ptr to current desc*/
struct xfs_mount *li_mountp; /* ptr to fs mount */