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[XFS] (mostly) remove xfs_inval_cached_pages Since the last round of 

direct I/O locking changes it is just a wrapper around
VOP_FLUSHINVAL_PAGES, so it's not nessecary anymore.  Keep a simplified
version for kernels < 2.4.22, as these don't have the changed direct I/O
locking.

SGI-PV: 938064
SGI-Modid: xfs-linux:xfs-kern:194420a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
This commit is contained in:
Christoph Hellwig 2005-06-21 15:47:39 +10:00 committed by Nathan Scott
parent d130c14c03
commit bd5a876ac4
4 changed files with 17 additions and 32 deletions
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24
fs/xfs/linux-2.6/xfs_lrw.c
View File

@ -209,30 +209,6 @@ unlock:
return (-status);
}
/*
* xfs_inval_cached_pages
*
* This routine is responsible for keeping direct I/O and buffered I/O
* somewhat coherent. From here we make sure that we're at least
* temporarily holding the inode I/O lock exclusively and then call
* the page cache to flush and invalidate any cached pages. If there
* are no cached pages this routine will be very quick.
*/
void
xfs_inval_cached_pages(
vnode_t *vp,
xfs_iocore_t *io,
xfs_off_t offset,
int write,
int relock)
{
if (VN_CACHED(vp)) {
xfs_inval_cached_trace(io, offset, -1, ctooff(offtoct(offset)), -1);
VOP_FLUSHINVAL_PAGES(vp, ctooff(offtoct(offset)), -1, FI_REMAPF_LOCKED);
}
}
ssize_t /* bytes read, or (-) error */
xfs_read(
bhv_desc_t *bdp,

2
fs/xfs/linux-2.6/xfs_lrw.h
View File

@ -94,8 +94,6 @@ extern int xfs_bdstrat_cb(struct xfs_buf *);
extern int xfs_zero_eof(struct vnode *, struct xfs_iocore *, xfs_off_t,
xfs_fsize_t, xfs_fsize_t);
extern void xfs_inval_cached_pages(struct vnode *, struct xfs_iocore *,
xfs_off_t, int, int);
extern ssize_t xfs_read(struct bhv_desc *, struct kiocb *,
const struct iovec *, unsigned int,
loff_t *, int, struct cred *);

7
fs/xfs/xfs_dfrag.c
View File

@ -180,9 +180,10 @@ xfs_swapext(
goto error0;
}
if (VN_CACHED(tvp) != 0)
xfs_inval_cached_pages(XFS_ITOV(tip), &(tip->i_iocore),
(xfs_off_t)0, 0, 0);
if (VN_CACHED(tvp) != 0) {
xfs_inval_cached_trace(&tip->i_iocore, 0, -1, 0, -1);
VOP_FLUSHINVAL_PAGES(tvp, 0, -1, FI_REMAPF_LOCKED);
}
/* Verify O_DIRECT for ftmp */
if (VN_CACHED(tvp) != 0) {

16
fs/xfs/xfs_vnodeops.c
View File

@ -4329,6 +4329,7 @@ xfs_free_file_space(
xfs_off_t len,
int attr_flags)
{
vnode_t *vp;
int committed;
int done;
xfs_off_t end_dmi_offset;
@ -4349,9 +4350,11 @@ xfs_free_file_space(
xfs_trans_t *tp;
int need_iolock = 1;
vn_trace_entry(XFS_ITOV(ip), __FUNCTION__, (inst_t *)__return_address);
vp = XFS_ITOV(ip);
mp = ip->i_mount;
vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
if ((error = XFS_QM_DQATTACH(mp, ip, 0)))
return error;
@ -4368,7 +4371,7 @@ xfs_free_file_space(
DM_EVENT_ENABLED(XFS_MTOVFS(mp), ip, DM_EVENT_WRITE)) {
if (end_dmi_offset > ip->i_d.di_size)
end_dmi_offset = ip->i_d.di_size;
error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, XFS_ITOV(ip),
error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, vp,
offset, end_dmi_offset - offset,
AT_DELAY_FLAG(attr_flags), NULL);
if (error)
@ -4387,7 +4390,14 @@ xfs_free_file_space(
ioffset = offset & ~(rounding - 1);
if (ilen & (rounding - 1))
ilen = (ilen + rounding) & ~(rounding - 1);
xfs_inval_cached_pages(XFS_ITOV(ip), &(ip->i_iocore), ioffset, 0, 0);
if (VN_CACHED(vp) != 0) {
xfs_inval_cached_trace(&ip->i_iocore, ioffset, -1,
ctooff(offtoct(ioffset)), -1);
VOP_FLUSHINVAL_PAGES(vp, ctooff(offtoct(ioffset)),
-1, FI_REMAPF_LOCKED);
}
/*
* Need to zero the stuff we're not freeing, on disk.
* If its a realtime file & can't use unwritten extents then we