#include <linux/buffer_head.h>
#include <linux/gfs2_ondisk.h>
#include <linux/bio.h>
+#include <linux/posix_acl.h>
#include "gfs2.h"
#include "incore.h"
}
/**
- * gfs2_pte_inval - Sync and invalidate all PTEs associated with a glock
- * @gl: the glock
- *
- */
-
-static void gfs2_pte_inval(struct gfs2_glock *gl)
-{
- struct gfs2_inode *ip;
- struct inode *inode;
-
- ip = gl->gl_object;
- inode = &ip->i_inode;
- if (!ip || !S_ISREG(inode->i_mode))
- return;
-
- unmap_shared_mapping_range(inode->i_mapping, 0, 0);
- if (test_bit(GIF_SW_PAGED, &ip->i_flags))
- set_bit(GLF_DIRTY, &gl->gl_flags);
-
-}
-
-/**
- * meta_go_sync - sync out the metadata for this glock
+ * rgrp_go_sync - sync out the metadata for this glock
* @gl: the glock
*
* Called when demoting or unlocking an EX glock. We must flush
* not return to caller to demote/unlock the glock until I/O is complete.
*/
-static void meta_go_sync(struct gfs2_glock *gl)
+static void rgrp_go_sync(struct gfs2_glock *gl)
{
- if (gl->gl_state != LM_ST_EXCLUSIVE)
+ struct address_space *metamapping = gl->gl_aspace->i_mapping;
+ int error;
+
+ if (!test_and_clear_bit(GLF_DIRTY, &gl->gl_flags))
return;
+ BUG_ON(gl->gl_state != LM_ST_EXCLUSIVE);
- if (test_and_clear_bit(GLF_DIRTY, &gl->gl_flags)) {
- gfs2_log_flush(gl->gl_sbd, gl);
- gfs2_meta_sync(gl);
- gfs2_ail_empty_gl(gl);
- }
+ gfs2_log_flush(gl->gl_sbd, gl);
+ filemap_fdatawrite(metamapping);
+ error = filemap_fdatawait(metamapping);
+ mapping_set_error(metamapping, error);
+ gfs2_ail_empty_gl(gl);
}
/**
- * meta_go_inval - invalidate the metadata for this glock
+ * rgrp_go_inval - invalidate the metadata for this glock
* @gl: the glock
* @flags:
*
+ * We never used LM_ST_DEFERRED with resource groups, so that we
+ * should always see the metadata flag set here.
+ *
*/
-static void meta_go_inval(struct gfs2_glock *gl, int flags)
+static void rgrp_go_inval(struct gfs2_glock *gl, int flags)
{
- if (!(flags & DIO_METADATA))
- return;
+ struct address_space *mapping = gl->gl_aspace->i_mapping;
- gfs2_meta_inval(gl);
- if (gl->gl_object == GFS2_I(gl->gl_sbd->sd_rindex))
- gl->gl_sbd->sd_rindex_uptodate = 0;
- else if (gl->gl_ops == &gfs2_rgrp_glops && gl->gl_object) {
- struct gfs2_rgrpd *rgd = (struct gfs2_rgrpd *)gl->gl_object;
+ BUG_ON(!(flags & DIO_METADATA));
+ gfs2_assert_withdraw(gl->gl_sbd, !atomic_read(&gl->gl_ail_count));
+ truncate_inode_pages(mapping, 0);
+ if (gl->gl_object) {
+ struct gfs2_rgrpd *rgd = (struct gfs2_rgrpd *)gl->gl_object;
rgd->rd_flags &= ~GFS2_RDF_UPTODATE;
}
}
struct address_space *metamapping = gl->gl_aspace->i_mapping;
int error;
- if (gl->gl_state != LM_ST_UNLOCKED)
- gfs2_pte_inval(gl);
- if (gl->gl_state != LM_ST_EXCLUSIVE)
- return;
-
if (ip && !S_ISREG(ip->i_inode.i_mode))
ip = NULL;
+ if (ip && test_and_clear_bit(GIF_SW_PAGED, &ip->i_flags))
+ unmap_shared_mapping_range(ip->i_inode.i_mapping, 0, 0);
+ if (!test_and_clear_bit(GLF_DIRTY, &gl->gl_flags))
+ return;
- if (test_bit(GLF_DIRTY, &gl->gl_flags)) {
- gfs2_log_flush(gl->gl_sbd, gl);
- filemap_fdatawrite(metamapping);
- if (ip) {
- struct address_space *mapping = ip->i_inode.i_mapping;
- filemap_fdatawrite(mapping);
- error = filemap_fdatawait(mapping);
- mapping_set_error(mapping, error);
- }
- error = filemap_fdatawait(metamapping);
- mapping_set_error(metamapping, error);
- clear_bit(GLF_DIRTY, &gl->gl_flags);
- gfs2_ail_empty_gl(gl);
+ BUG_ON(gl->gl_state != LM_ST_EXCLUSIVE);
+
+ gfs2_log_flush(gl->gl_sbd, gl);
+ filemap_fdatawrite(metamapping);
+ if (ip) {
+ struct address_space *mapping = ip->i_inode.i_mapping;
+ filemap_fdatawrite(mapping);
+ error = filemap_fdatawait(mapping);
+ mapping_set_error(mapping, error);
}
+ error = filemap_fdatawait(metamapping);
+ mapping_set_error(metamapping, error);
+ gfs2_ail_empty_gl(gl);
+ /*
+ * Writeback of the data mapping may cause the dirty flag to be set
+ * so we have to clear it again here.
+ */
+ smp_mb__before_clear_bit();
+ clear_bit(GLF_DIRTY, &gl->gl_flags);
}
/**
* inode_go_inval - prepare a inode glock to be released
* @gl: the glock
* @flags:
+ *
+ * Normally we invlidate everything, but if we are moving into
+ * LM_ST_DEFERRED from LM_ST_SHARED or LM_ST_EXCLUSIVE then we
+ * can keep hold of the metadata, since it won't have changed.
*
*/
static void inode_go_inval(struct gfs2_glock *gl, int flags)
{
struct gfs2_inode *ip = gl->gl_object;
- int meta = (flags & DIO_METADATA);
- if (meta) {
- gfs2_meta_inval(gl);
- if (ip)
+ gfs2_assert_withdraw(gl->gl_sbd, !atomic_read(&gl->gl_ail_count));
+
+ if (flags & DIO_METADATA) {
+ struct address_space *mapping = gl->gl_aspace->i_mapping;
+ truncate_inode_pages(mapping, 0);
+ if (ip) {
set_bit(GIF_INVALID, &ip->i_flags);
+ forget_all_cached_acls(&ip->i_inode);
+ }
}
+ if (ip == GFS2_I(gl->gl_sbd->sd_rindex))
+ gl->gl_sbd->sd_rindex_uptodate = 0;
if (ip && S_ISREG(ip->i_inode.i_mode))
truncate_inode_pages(ip->i_inode.i_mapping, 0);
}
}
/**
- * rgrp_go_dump - print out an rgrp
- * @seq: The iterator
- * @gl: The glock in question
- *
- */
-
-static int rgrp_go_dump(struct seq_file *seq, const struct gfs2_glock *gl)
-{
- const struct gfs2_rgrpd *rgd = gl->gl_object;
- if (rgd == NULL)
- return 0;
- gfs2_print_dbg(seq, " R: n:%llu f:%02x b:%u/%u i:%u\n",
- (unsigned long long)rgd->rd_addr, rgd->rd_flags,
- rgd->rd_free, rgd->rd_free_clone, rgd->rd_dinodes);
- return 0;
-}
-
-/**
* trans_go_sync - promote/demote the transaction glock
* @gl: the glock
* @state: the requested state
if (gl->gl_state != LM_ST_UNLOCKED &&
test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) {
+ flush_workqueue(gfs2_delete_workqueue);
gfs2_meta_syncfs(sdp);
gfs2_log_shutdown(sdp);
}
return 0;
}
+/**
+ * iopen_go_callback - schedule the dcache entry for the inode to be deleted
+ * @gl: the glock
+ *
+ * gl_spin lock is held while calling this
+ */
+static void iopen_go_callback(struct gfs2_glock *gl)
+{
+ struct gfs2_inode *ip = (struct gfs2_inode *)gl->gl_object;
+
+ if (gl->gl_demote_state == LM_ST_UNLOCKED &&
+ gl->gl_state == LM_ST_SHARED &&
+ ip && test_bit(GIF_USER, &ip->i_flags)) {
+ gfs2_glock_hold(gl);
+ if (queue_work(gfs2_delete_workqueue, &gl->gl_delete) == 0)
+ gfs2_glock_put_nolock(gl);
+ }
+}
+
const struct gfs2_glock_operations gfs2_meta_glops = {
- .go_xmote_th = meta_go_sync,
.go_type = LM_TYPE_META,
};
};
const struct gfs2_glock_operations gfs2_rgrp_glops = {
- .go_xmote_th = meta_go_sync,
- .go_inval = meta_go_inval,
+ .go_xmote_th = rgrp_go_sync,
+ .go_inval = rgrp_go_inval,
.go_demote_ok = rgrp_go_demote_ok,
.go_lock = rgrp_go_lock,
.go_unlock = rgrp_go_unlock,
- .go_dump = rgrp_go_dump,
+ .go_dump = gfs2_rgrp_dump,
.go_type = LM_TYPE_RGRP,
.go_min_hold_time = HZ / 5,
};
const struct gfs2_glock_operations gfs2_iopen_glops = {
.go_type = LM_TYPE_IOPEN,
+ .go_callback = iopen_go_callback,
};
const struct gfs2_glock_operations gfs2_flock_glops = {