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-rw-r--r--fs/cachefiles/cache.c7
-rw-r--r--fs/cachefiles/internal.h2
-rw-r--r--fs/cachefiles/io.c2
3 files changed, 4 insertions, 7 deletions
diff --git a/fs/cachefiles/cache.c b/fs/cachefiles/cache.c
index ce4d4785003c..1e9c71666c6a 100644
--- a/fs/cachefiles/cache.c
+++ b/fs/cachefiles/cache.c
@@ -84,9 +84,7 @@ int cachefiles_add_cache(struct cachefiles_cache *cache)
goto error_unsupported;
cache->bsize = stats.f_bsize;
- cache->bshift = 0;
- if (stats.f_bsize < PAGE_SIZE)
- cache->bshift = PAGE_SHIFT - ilog2(stats.f_bsize);
+ cache->bshift = ilog2(stats.f_bsize);
_debug("blksize %u (shift %u)",
cache->bsize, cache->bshift);
@@ -106,7 +104,6 @@ int cachefiles_add_cache(struct cachefiles_cache *cache)
(unsigned long long) cache->fcull,
(unsigned long long) cache->fstop);
- stats.f_blocks >>= cache->bshift;
do_div(stats.f_blocks, 100);
cache->bstop = stats.f_blocks * cache->bstop_percent;
cache->bcull = stats.f_blocks * cache->bcull_percent;
@@ -209,7 +206,7 @@ int cachefiles_has_space(struct cachefiles_cache *cache,
return ret;
}
- b_avail = stats.f_bavail >> cache->bshift;
+ b_avail = stats.f_bavail;
b_writing = atomic_long_read(&cache->b_writing);
if (b_avail > b_writing)
b_avail -= b_writing;
diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h
index 8dd54d9375b6..c793d33b0224 100644
--- a/fs/cachefiles/internal.h
+++ b/fs/cachefiles/internal.h
@@ -86,7 +86,7 @@ struct cachefiles_cache {
unsigned bcull_percent; /* when to start culling (% blocks) */
unsigned bstop_percent; /* when to stop allocating (% blocks) */
unsigned bsize; /* cache's block size */
- unsigned bshift; /* min(ilog2(PAGE_SIZE / bsize), 0) */
+ unsigned bshift; /* ilog2(bsize) */
uint64_t frun; /* when to stop culling */
uint64_t fcull; /* when to start culling */
uint64_t fstop; /* when to stop allocating */
diff --git a/fs/cachefiles/io.c b/fs/cachefiles/io.c
index 60b1eac2ce78..04eb52736990 100644
--- a/fs/cachefiles/io.c
+++ b/fs/cachefiles/io.c
@@ -264,7 +264,7 @@ static int cachefiles_write(struct netfs_cache_resources *cres,
ki->term_func = term_func;
ki->term_func_priv = term_func_priv;
ki->was_async = true;
- ki->b_writing = (len + (1 << cache->bshift)) >> cache->bshift;
+ ki->b_writing = (len + (1 << cache->bshift) - 1) >> cache->bshift;
if (ki->term_func)
ki->iocb.ki_complete = cachefiles_write_complete;