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[XFS] Rework the dquot hash sizing heuristics.

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SGI-PV: 943123
SGI-Modid: xfs-linux:xfs-kern:24012a

Signed-off-by: Nathan Scott <nathans@sgi.com>
This commit is contained in:
Nathan Scott
2005-11-02 15:08:25 +11:00
parent 1f730e3b53
commit 6b3f6b5b87
3 changed files with 20 additions and 31 deletions
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14
fs/xfs/linux-2.6/xfs_linux.h
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@@ -217,19 +217,7 @@ static inline void set_buffer_unwritten_io(struct buffer_head *bh)
#define Q_XSETPQLIM XQM_CMD(10) /* set projects disk limits */
#define Q_XGETPQUOTA XQM_CMD(11) /* get projects disk limits */
/* IRIX uses a dynamic sizing algorithm (ndquot = 200 + numprocs*2) */
/* we may well need to fine-tune this if it ever becomes an issue. */
#define DQUOT_MAX_HEURISTIC 1024 /* NR_DQUOTS */
#define ndquot DQUOT_MAX_HEURISTIC
/* IRIX uses the current size of the name cache to guess a good value */
/* - this isn't the same but is a good enough starting point for now. */
#define DQUOT_HASH_HEURISTIC files_stat.nr_files
/* IRIX inodes maintain the project ID also, zero this field on Linux */
#define DEFAULT_PROJID 0
#define dfltprid DEFAULT_PROJID
#define dfltprid 0
#define MAXPATHLEN 1024
#define MIN(a,b) (min(a,b))