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authorLen Brown <len.brown@intel.com>2008-10-22 23:57:26 -0400
committerLen Brown <len.brown@intel.com>2008-10-23 00:11:07 -0400
commit057316cc6a5b521b332a1d7ccc871cd60c904c74 (patch)
tree4333e608da237c73ff69b10878025cca96dcb4c8 /fs/fat
parent3e2dab9a1c2deb03c311eb3f83466009147ed4d3 (diff)
parent2515ddc6db8eb49a79f0fe5e67ff09ac7c81eab4 (diff)
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Merge branch 'linus' into test
Conflicts: MAINTAINERS arch/x86/kernel/acpi/boot.c arch/x86/kernel/acpi/sleep.c drivers/acpi/Kconfig drivers/pnp/Makefile drivers/pnp/quirks.c Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'fs/fat')
-rw-r--r--fs/fat/fatent.c14
-rw-r--r--fs/fat/inode.c6
2 files changed, 17 insertions, 3 deletions
diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c
index 302e95c4af7..fb98b3d847e 100644
--- a/fs/fat/fatent.c
+++ b/fs/fat/fatent.c
@@ -6,6 +6,7 @@
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/msdos_fs.h>
+#include <linux/blkdev.h>
struct fatent_operations {
void (*ent_blocknr)(struct super_block *, int, int *, sector_t *);
@@ -535,6 +536,7 @@ int fat_free_clusters(struct inode *inode, int cluster)
struct fat_entry fatent;
struct buffer_head *bhs[MAX_BUF_PER_PAGE];
int i, err, nr_bhs;
+ int first_cl = cluster;
nr_bhs = 0;
fatent_init(&fatent);
@@ -551,6 +553,18 @@ int fat_free_clusters(struct inode *inode, int cluster)
goto error;
}
+ /*
+ * Issue discard for the sectors we no longer care about,
+ * batching contiguous clusters into one request
+ */
+ if (cluster != fatent.entry + 1) {
+ int nr_clus = fatent.entry - first_cl + 1;
+
+ sb_issue_discard(sb, fat_clus_to_blknr(sbi, first_cl),
+ nr_clus * sbi->sec_per_clus);
+ first_cl = cluster;
+ }
+
ops->ent_put(&fatent, FAT_ENT_FREE);
if (sbi->free_clusters != -1) {
sbi->free_clusters++;
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 80ff3381fa2..d12cdf2a040 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -855,7 +855,7 @@ enum {
Opt_obsolate, Opt_flush, Opt_tz_utc, Opt_err,
};
-static match_table_t fat_tokens = {
+static const match_table_t fat_tokens = {
{Opt_check_r, "check=relaxed"},
{Opt_check_s, "check=strict"},
{Opt_check_n, "check=normal"},
@@ -890,14 +890,14 @@ static match_table_t fat_tokens = {
{Opt_tz_utc, "tz=UTC"},
{Opt_err, NULL},
};
-static match_table_t msdos_tokens = {
+static const match_table_t msdos_tokens = {
{Opt_nodots, "nodots"},
{Opt_nodots, "dotsOK=no"},
{Opt_dots, "dots"},
{Opt_dots, "dotsOK=yes"},
{Opt_err, NULL}
};
-static match_table_t vfat_tokens = {
+static const match_table_t vfat_tokens = {
{Opt_charset, "iocharset=%s"},
{Opt_shortname_lower, "shortname=lower"},
{Opt_shortname_win95, "shortname=win95"},