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[XFS] Add op_flags field and helpers to xfs_da_args

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The end of the xfs_da_args structure has 4 unsigned char fields for
true/false information on directory and attr operations using the
xfs_da_args structure.

The following converts these 4 into a op_flags field that uses the first 4
bits for these fields and allows expansion for future operation
information (eg. case-insensitive lookup request).

SGI-PV: 981520
SGI-Modid: xfs-linux-melb:xfs-kern:31206a

Signed-off-by: Barry Naujok <bnaujok@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
This commit is contained in:
Barry Naujok
2008-05-21 16:42:05 +10:00
committed by Niv Sardi
parent 5163f95a08
commit 6a178100ab
10 changed files with 71 additions and 58 deletions
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10
fs/xfs/xfs_dir2_block.c
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@@ -215,7 +215,7 @@ xfs_dir2_block_addname(
/*
* If this isn't a real add, we're done with the buffer.
*/
if (args->justcheck)
if (args->op_flags & XFS_DA_OP_JUSTCHECK)
xfs_da_brelse(tp, bp);
/*
* If we don't have space for the new entry & leaf ...
@@ -225,7 +225,7 @@ xfs_dir2_block_addname(
* Not trying to actually do anything, or don't have
* a space reservation: return no-space.
*/
if (args->justcheck || args->total == 0)
if ((args->op_flags & XFS_DA_OP_JUSTCHECK) || args->total == 0)
return XFS_ERROR(ENOSPC);
/*
* Convert to the next larger format.
@@ -240,7 +240,7 @@ xfs_dir2_block_addname(
/*
* Just checking, and it would work, so say so.
*/
if (args->justcheck)
if (args->op_flags & XFS_DA_OP_JUSTCHECK)
return 0;
needlog = needscan = 0;
/*
@@ -674,7 +674,7 @@ xfs_dir2_block_lookup_int(
else
high = mid - 1;
if (low > high) {
ASSERT(args->oknoent);
ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);
xfs_da_brelse(tp, bp);
return XFS_ERROR(ENOENT);
}
@@ -713,7 +713,7 @@ xfs_dir2_block_lookup_int(
} while (++mid < be32_to_cpu(btp->count) &&
be32_to_cpu(blp[mid].hashval) == hash);
ASSERT(args->oknoent);
ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);
/*
* Here, we can only be doing a lookup (not a rename or replace).
* If a case-insensitive match was found earlier, return success.