| /linux/Documentation/filesystems/iomap/ |
| H A D | operations.rst | 24 File contents are cached in memory ("pagecache") to satisfy reads and
29 iomap implements nearly all the folio and pagecache management that
32 mapping, managing uptodate and dirty state, or writeback of pagecache
38 be used, which makes buffered I/O much more efficient, and the pagecache
85 - ``put_folio``: Called to unlock and put a folio after a pagecache
94 ``->iomap_begin`` and ``->iomap_end`` because pagecache operations
98 mapping for a particular pagecache folio can `change in the time it
103 For the pagecache, races can happen if writeback doesn't take
162 If the fsblock size matches the size of a pagecache folio, it is assumed
168 If the fsblock size is less than the size of a pagecache folio, iomap
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| H A D | design.rst | 38 * Folio write faults to the pagecache
53 pagecache programmers and code reviewers.
83 So far only the pagecache operations need to do this.
117 * ``invalidate_lock``: The pagecache ``struct address_space``
140 writing the pagecache.
186 iomap does not support writing (whether via pagecache or direct
234 heads for pagecache operations.
275 Currently, these flags are only set by pagecache operations.
296 For pagecache operations this is critical for correct operation
300 Only pagecache operations revalidate mappings; see the section about
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| H A D | porting.rst | 38 iomap handles common pagecache related operations itself, such as
114 For unjournalled filesystems that use the pagecache for symbolic links
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| /linux/mm/ |
| H A D | show_mem.c | 35 unsigned long pagecache; in si_mem_available() local
54 pagecache = global_node_page_state(NR_ACTIVE_FILE) + in si_mem_available()
56 pagecache -= min(pagecache / 2, wmark_low); in si_mem_available()
57 available += pagecache; in si_mem_available()
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| /linux/fs/verity/ |
| H A D | Makefile | 8 pagecache.o \
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| H A D | Kconfig | 6 # pagecache. That approach assumes the page size is at most 64K.
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| /linux/drivers/mtd/nand/raw/ |
| H A D | nand_base.c | 473 if (page == chip->pagecache.page) in nand_do_write_oob()
474 chip->pagecache.page = -1; in nand_do_write_oob()
3492 if (realpage != chip->pagecache.page || oob) { in nand_do_read_ops()
3518 chip->pagecache.page = -1; in nand_do_read_ops()
3530 chip->pagecache.page = realpage; in nand_do_read_ops()
3531 chip->pagecache.bitflips = ret; in nand_do_read_ops()
3534 chip->pagecache.page = -1; in nand_do_read_ops()
3574 chip->pagecache.bitflips); in nand_do_read_ops()
4352 if (to <= ((loff_t)chip->pagecache.page << chip->page_shift) && in nand_do_write_ops()
4353 ((loff_t)chip->pagecache.page << chip->page_shift) < (to + ops->len)) in nand_do_write_ops()
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| /linux/Documentation/translations/zh_CN/process/ |
| H A D | coding-style.rst | 848 因为体积大内核会占用更多的指令高速缓存，而且会导致 pagecache 的可用内存减少。
849 想象一下，一次 pagecache 未命中就会导致一次磁盘寻址，将耗时 5 毫秒。5 毫秒的
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| /linux/Documentation/translations/zh_TW/process/ |
| H A D | coding-style.rst | 862 因爲體積大內核會佔用更多的指令高速緩存，而且會導致 pagecache 的可用內存減少。
863 想象一下，一次 pagecache 未命中就會導致一次磁盤尋址，將耗時 5 毫秒。5 毫秒的
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| /linux/include/linux/mtd/ |
| H A D | rawnand.h | 1324 } pagecache; member
1631 chip->pagecache.page = -1; in nand_get_data_buf()
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| /linux/Documentation/filesystems/ |
| H A D | netfs_library.rst | 69 When actually performing I/O (as opposed to just copying into the pagecache),
118 pagecache is walked, so no limit is set by the library.
249 alignment limitations. RMW will be performed if necessary. The pagecache
306 not share local buffering (i.e. the pagecache) and, in a network
698 more than is available. The library will clear any excess pagecache.
836 [Optional] This is called after netfslib writes to the pagecache or when it
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| H A D | fsverity.rst | 595 pages have been read into the pagecache. (See `Verifying data`_.)
676 For filesystems using Linux's pagecache, the ``->read_folio()`` and
682 which verifies data that has been read into the pagecache of a verity
690 as per the usual Linux pagecache behavior, attempts by userspace to
711 the pagecache, so the above subsection applies too. However, they
893 pagecache, but both local and remote filesystems normally do so.
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| H A D | vfs.rst | 269 *not* evict the pagecache or inode-associated metadata buffers;
725 generic pagecache infrastructure does not track the file descriptions
739 occurs. Then, after writing back data from the pagecache in their
859 The filesystem must return the locked pagecache folio for the
881 'copied') that were able to be copied into pagecache.
951 Called by the VM when reading a file through the pagecache when
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| H A D | porting.rst | 336 remaining links or not. Caller does *not* evict the pagecache or inode-associated
622 its pagecache. No highmem pages should end up in the pagecache of such
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| H A D | proc.rst | 1121 pagecache) as well as tmpfs & shmem.
1142 for the pagecache. The kernel must use tricks to access
1824 pagecache).
1876 by truncating pagecache. A task can cause "negative" IO too. If this task
1877 truncates some dirty pagecache, some IO which another task has been accounted
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| H A D | locking.rst | 341 the pagecache will assume that private data is buffer_heads and call
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| /linux/Documentation/core-api/ |
| H A D | cachetlb.rst | 310 private". The kernel guarantees that, for pagecache pages, it will
311 clear this bit when such a page first enters the pagecache.
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| /linux/Documentation/filesystems/caching/ |
| H A D | netfs-api.rst | 78 pagecache becomes dirty and unuse it when writeback is complete. This is
215 pagecache in order to avoid an oops due to trying to open a file during process
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| /linux/Documentation/admin-guide/sysctl/ |
| H A D | vm.rst | 254 To free pagecache::
262 To free slab objects and pagecache::
273 (inodes, dentries, pagecache, etc...) These objects are automatically
1055 pagecache and swapcache reclaim. Decreasing vfs_cache_pressure causes the
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| /linux/fs/ |
| H A D | Kconfig | 67 then you can avoid using the pagecache to buffer I/Os. Turning
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| /linux/Documentation/dev-tools/ |
| H A D | kfence.rst | 300 limits frequent long-lived allocations (e.g. pagecache) of the same source
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| /linux/Documentation/admin-guide/mm/ |
| H A D | ksm.rst | 25 KSM only merges anonymous (private) pages, never pagecache (file) pages.
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| /linux/fs/befs/ |
| H A D | ChangeLog | 206 * Made it an option to use the old non-pagecache befs_file_read() for
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| /linux/Documentation/filesystems/nfs/ |
| H A D | localio.rst | 276 application uses O_DIRECT the NFS client will bypass the pagecache but
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| /linux/Documentation/process/ |
| H A D | coding-style.rst | 986 available for the pagecache. Just think about it; a pagecache miss causes a
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