diff options
| author | Christoph Hellwig <hch@infradead.org> | 2010-01-19 09:56:44 +0000 |
|---|---|---|
| committer | Alex Elder <aelder@sgi.com> | 2010-01-21 13:44:36 -0600 |
| commit | 0cadda1c5f194f98a05d252ff4385d86d2ed0862 (patch) | |
| tree | a299a7a976f1478f9024f1d3aff9a2351a8397fe /fs/xfs/xfs_trans_buf.c | |
| parent | a210c1aa7f6c90b729cc3a72d03e789b13cb6c47 (diff) | |
xfs: remove duplicate buffer flags
Currently we define aliases for the buffer flags in various
namespaces, which only adds confusion. Remove all but the XBF_
flags to clean this up a bit.
Note that we still abuse XFS_B_ASYNC/XBF_ASYNC for some non-buffer
uses, but I'll clean that up later.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_trans_buf.c')
| -rw-r--r-- | fs/xfs/xfs_trans_buf.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c index 49130628d5ef..5ffd544434eb 100644 --- a/fs/xfs/xfs_trans_buf.c +++ b/fs/xfs/xfs_trans_buf.c @@ -75,13 +75,14 @@ xfs_trans_get_buf(xfs_trans_t *tp, xfs_buf_log_item_t *bip; if (flags == 0) - flags = XFS_BUF_LOCK | XFS_BUF_MAPPED; + flags = XBF_LOCK | XBF_MAPPED; /* * Default to a normal get_buf() call if the tp is NULL. */ if (tp == NULL) - return xfs_buf_get(target_dev, blkno, len, flags | BUF_BUSY); + return xfs_buf_get(target_dev, blkno, len, + flags | XBF_DONT_BLOCK); /* * If we find the buffer in the cache with this transaction @@ -117,14 +118,14 @@ xfs_trans_get_buf(xfs_trans_t *tp, } /* - * We always specify the BUF_BUSY flag within a transaction so - * that get_buf does not try to push out a delayed write buffer + * We always specify the XBF_DONT_BLOCK flag within a transaction + * so that get_buf does not try to push out a delayed write buffer * which might cause another transaction to take place (if the * buffer was delayed alloc). Such recursive transactions can * easily deadlock with our current transaction as well as cause * us to run out of stack space. */ - bp = xfs_buf_get(target_dev, blkno, len, flags | BUF_BUSY); + bp = xfs_buf_get(target_dev, blkno, len, flags | XBF_DONT_BLOCK); if (bp == NULL) { return NULL; } @@ -290,15 +291,15 @@ xfs_trans_read_buf( int error; if (flags == 0) - flags = XFS_BUF_LOCK | XFS_BUF_MAPPED; + flags = XBF_LOCK | XBF_MAPPED; /* * Default to a normal get_buf() call if the tp is NULL. */ if (tp == NULL) { - bp = xfs_buf_read(target, blkno, len, flags | BUF_BUSY); + bp = xfs_buf_read(target, blkno, len, flags | XBF_DONT_BLOCK); if (!bp) - return (flags & XFS_BUF_TRYLOCK) ? + return (flags & XBF_TRYLOCK) ? EAGAIN : XFS_ERROR(ENOMEM); if (XFS_BUF_GETERROR(bp) != 0) { @@ -385,14 +386,14 @@ xfs_trans_read_buf( } /* - * We always specify the BUF_BUSY flag within a transaction so - * that get_buf does not try to push out a delayed write buffer + * We always specify the XBF_DONT_BLOCK flag within a transaction + * so that get_buf does not try to push out a delayed write buffer * which might cause another transaction to take place (if the * buffer was delayed alloc). Such recursive transactions can * easily deadlock with our current transaction as well as cause * us to run out of stack space. */ - bp = xfs_buf_read(target, blkno, len, flags | BUF_BUSY); + bp = xfs_buf_read(target, blkno, len, flags | XBF_DONT_BLOCK); if (bp == NULL) { *bpp = NULL; return 0; @@ -472,8 +473,8 @@ shutdown_abort: if (XFS_BUF_ISSTALE(bp) && XFS_BUF_ISDELAYWRITE(bp)) cmn_err(CE_NOTE, "about to pop assert, bp == 0x%p", bp); #endif - ASSERT((XFS_BUF_BFLAGS(bp) & (XFS_B_STALE|XFS_B_DELWRI)) != - (XFS_B_STALE|XFS_B_DELWRI)); + ASSERT((XFS_BUF_BFLAGS(bp) & (XBF_STALE|XBF_DELWRI)) != + (XBF_STALE|XBF_DELWRI)); trace_xfs_trans_read_buf_shut(bp, _RET_IP_); xfs_buf_relse(bp); |